Fidelity Summer Street Trust NCSR Certified annual shareholder report (management investment company)

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NOT FDIC INSURED •MAY LOSE VALUE •NO BANK GUARANTEE

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Performance: The Bottom Line

Average annual total return reflects the change in the value of an investment, assuming reinvestment of distributions from dividend income and capital gains (the profits earned upon the sale of securities that have grown in value, if any) and assuming a constant rate of performance each year. The hypothetical investment and the average annual total returns do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. During periods of reimbursement by Fidelity, a fund's total return will be greater than it would be had the reimbursement not occurred. How a fund did yesterday is no guarantee of how it will do tomorrow.

Average Annual Total Returns

Periods ended December 31, 2023	Past 1 year	Past 5 years	Past 10 years
Class A (incl. 4.00% sales charge)	9.07%	0.82%	2.41%
Class M (incl. 4.00% sales charge)	8.97%	0.82%	2.41%
Class C (incl. contingent deferred sales charge)	11.83%	0.92%	2.45%
Fidelity® New Markets Income Fund	13.97%	1.97%	2.99%
Class I	13.95%	1.95%	2.98%
Class Z	14.07%	2.05%	3.03%

Class C shares' contingent deferred sales charges included in the past one year, past five years and past ten years total return figures are 1%, 0% and 0%, respectively.

The initial offering of Classes A,M,C,I and Z shares took place on December 4, 2018. Returns prior to December 4, 2018, are those of Fidelity New Markets Income Fund.

$10,000 Over 10 Years

Let's say hypothetically that $10,000 was invested in Fidelity® New Markets Income Fund, a class of the fund, on December 31, 2013.

The chart shows how the value of your investment would have changed, and also shows how the J.P. Morgan Emerging Markets Bond Index Global Diversified Index performed over the same period.

Management's Discussion of Fund Performance

Market Recap:

Emerging-markets debt gained 11.09% in 2023, according to the J.P. Morgan Emerging Markets Bond Index Global Diversified Index. After returning -17.78% in 2022, the index's sharp reversal was driven by global disinflationary trends and expectations that the U.S. Federal Reserve and other central banks around the world would slow or reverse their hiking of interest rates. Notably, the J.P. Morgan index rose 10.66% in the final two months of 2023, capping the year with a powerful rally amid falling U.S. Treasury yields. In December, the Fed projected a shift to monetary easing in 2024. This news, along with resilient late-cycle expansion of the U.S. economy, provided a favorable backdrop for higher-risk assets and spurred global stock and bond markets. A drop in commodity prices in 2023, including a decline in oil and energy prices, led to reduced inflationary pressure in emerging markets. As inflation fell below or closer to target rates, some emerging-markets' central banks began to cut interest rates. Against this backdrop, the higher-yield component of the index outpaced the investment-grade portion for the year. Among the index's country constituents, El Salvador (+117%), Pakistan (+100%) and Sri Lanka (+71%) stood out. Each is a small, distressed index component that was driven by idiosyncratic catalysts. In sharp contrast, Bolivia (-34%) faced the negative impact of dwindling gold reserves, while Ecuador (-18%) was rattled by political risk.

Comments from Co-Managers Timothy Gill and Nader Nazmi:

In 2023, the fund's share classes (excluding sales charges, if applicable) advanced roughly 13% to 14%, outperforming the J.P. Morgan index. Security selection this year contributed most to fund's performance relative to the benchmark, with market selection also proving helpful. Specifically, leading the way was the fund's exposure to Venezuela, a country that has not been part of the J.P. Morgan index since its removal in late 2019. In October, the U.S. lifted its trading ban on the secondary market for some of the country's bonds. Investors await a decision from J.P. Morgan's index committee on whether Venezuela bonds will be readmitted as a constituent. The fund's holdings in Venezuelan securities were up 131% for the year. Security selection and an overweight in Ukraine also helped our relative result, given its outperformance of the benchmark in 2023. A position in bonds issued by Naftogaz, a large, state-owned oil and gas company in Ukraine, was particularly beneficial, as bondholders approved restructuring proposals in July, ending several months of default. On the negative side, a non-benchmark stake in U.S. Treasuries detracted from relative performance. The fund's position returned 3% in 2023, underperforming the index. An underweight in El Salvador also weighed on our relative result, given the robust performance of this market in 2023.

The views expressed above reflect those of the portfolio manager(s) only through the end of the period as stated on the cover of this report and do not necessarily represent the views of Fidelity or any other person in the Fidelity organization. Any such views are subject to change at any time based upon market or other conditions and Fidelity disclaims any responsibility to update such views. These views may not be relied on as investment advice and, because investment decisions for a Fidelity fund are based on numerous factors, may not be relied on as an indication of trading intent on behalf of any Fidelity fund.

Investment Summary December 31, 2023 (Unaudited)

Top Bond Issuers (% of Fund's net assets)
(with maturities greater than one year)
U.S. Treasury Obligations	4.0
Petroleos Mexicanos	3.9
Dominican Republic	3.7
Turkish Republic	3.3
Colombian Republic	3.1
Sultanate of Oman	2.7
Indonesian Republic	2.7
State of Qatar	2.6
Petroleos de Venezuela SA	2.3
Republic of Nigeria	2.3
	30.6

Quality Diversification (% of Fund's net assets)

Percentages shown as 0.0% may reflect amounts less than 0.05%.

We have used ratings from Moody's Investors Service, Inc. Where Moody's® ratings are not available, we have used S&P® ratings. All ratings are as of the date indicated and do not reflect subsequent changes.

Asset Allocation (% of Fund's net assets)

Futures - 0.6%

Geographic Diversification (% of Fund's net assets)

* Includes Short-Term investments and Net Other Assets (Liabilities).

Percentages are adjusted for the effect of derivatives, if applicable.

Schedule of Investments December 31, 2023

Showing Percentage of Net Assets

Nonconvertible Bonds - 31.3%
	Principal Amount (a)	Value ($)
Azerbaijan - 1.0%
Southern Gas Corridor CJSC 6.875% 3/24/26 (b)	31,439,000	31,881,111
State Oil Co. of Azerbaijan Republic 6.95% 3/18/30 (Reg. S)	7,930,000	8,328,978
TOTAL AZERBAIJAN		40,210,089
Bahrain - 0.7%
The Oil and Gas Holding Co. 7.5% 10/25/27 (b)	28,868,000	30,383,570
Brazil - 1.9%
Adecoagro SA 6% 9/21/27 (b)	6,168,000	5,940,277
Aegea Finance SARL 9% 1/20/31 (b)	3,505,000	3,727,918
Azul Secured Finance LLP:
11.5% 5/28/29 (b)	18,120,325	15,416,410
11.93% 8/28/28 (b)	5,755,000	5,942,038
Braskem Netherlands BV:
5.875% 1/31/50 (b)	3,015,000	2,089,018
7.25% 2/13/33 (b)	5,090,000	4,237,425
CSN Resources SA 8.875% 12/5/30 (b)	4,840,000	5,023,436
Embraer Netherlands Finance BV:
5.4% 2/1/27	2,285,000	2,257,169
6.95% 1/17/28 (b)	3,270,000	3,358,094
7% 7/28/30 (b)	8,995,000	9,398,786
MARB BondCo PLC 3.95% 1/29/31 (b)	3,045,000	2,459,142
MC Brazil Downstream Trading SARL 7.25% 6/30/31 (b)	12,846,131	9,955,751
NBM U.S. Holdings, Inc. 6.625% 8/6/29 (b)	4,930,000	4,766,866
Nexa Resources SA 6.5% 1/18/28 (b)	4,920,000	4,920,984
Samarco Mineracao SA 9.0494% 6/30/31 pay-in-kind (b)(c)	2,320,000	1,936,620
TOTAL BRAZIL		81,429,934
Burkina Faso - 0.2%
Endeavour Mining PLC 5% 10/14/26 (b)	6,890,000	6,336,647
Cambodia - 0.2%
NagaCorp Ltd. 7.95% 7/6/24 (Reg. S)	7,185,000	6,946,745
Chile - 1.6%
Antofagasta PLC:
2.375% 10/14/30 (b)	15,695,000	12,825,758
5.625% 5/13/32 (b)	5,445,000	5,407,566
Chile Electricity LUX MPC SARL 6.01% 1/20/33 (b)	3,515,000	3,613,859
Corporacion Nacional del Cobre de Chile (Codelco):
3.15% 1/14/30 (b)	7,740,000	6,893,438
3.15% 1/15/51 (b)	8,130,000	5,299,744
3.7% 1/30/50 (b)	14,035,000	10,092,042
4.5% 8/1/47 (b)	6,855,000	5,607,390
5.125% 2/2/33 (b)	5,740,000	5,540,822
5.95% 1/8/34 (b)	3,995,000	4,040,943
VTR Comunicaciones SpA:
4.375% 4/15/29 (b)	4,050,000	1,918,688
5.125% 1/15/28 (b)	16,142,000	7,672,494
TOTAL CHILE		68,912,744
China - 1.4%
ENN Clean Energy International Investment Ltd. 3.375% 5/12/26 (b)	12,435,000	11,623,865
ENN Energy Holdings Ltd. 4.625% 5/17/27 (b)	10,930,000	10,768,783
Meituan:
2.125% 10/28/25 (b)	11,635,000	10,958,425
3.05% 10/28/30 (b)	10,295,000	8,676,420
Prosus NV:
3.061% 7/13/31 (b)	3,025,000	2,431,344
3.832% 2/8/51 (b)	7,355,000	4,624,456
4.193% 1/19/32 (b)	11,350,000	9,746,813
TOTAL CHINA		58,830,106
Colombia - 0.8%
Ecopetrol SA 8.875% 1/13/33	11,770,000	12,759,416
EnfraGen Energia Sur SA 5.375% 12/30/30 (b)	11,545,000	8,886,187
Gcm Mining Corp. 6.875% 8/9/26 (b)	6,330,000	5,491,275
GeoPark Ltd. 5.5% 1/17/27 (b)	2,535,000	2,233,056
Termocandelaria Power Ltd. 7.875% 1/30/29 (b)	5,438,950	5,299,577
TOTAL COLOMBIA		34,669,511
Costa Rica - 0.1%
Liberty Costa Rica SR SF 10.875% 1/15/31 (b)	4,280,000	4,389,012
Georgia - 0.1%
JSC Georgian Railway 4% 6/17/28 (b)	6,755,000	6,187,158
Ghana - 1.1%
Kosmos Energy Ltd. 7.125% 4/4/26 (b)	26,024,000	24,771,595
Tullow Oil PLC 10.25% 5/15/26 (b)	22,535,000	20,013,897
TOTAL GHANA		44,785,492
Guatemala - 0.5%
CT Trust 5.125% 2/3/32 (b)	8,720,000	7,572,710
Investment Energy Resources Ltd. 6.25% 4/26/29 (b)	6,260,000	5,867,623
Millicom International Cellular SA 4.5% 4/27/31 (b)	7,595,000	6,303,318
TOTAL GUATEMALA		19,743,651
Hungary - 0.1%
Magyar Export-Import Bank 6.125% 12/4/27 (b)	3,730,000	3,794,716
India - 0.2%
CA Magnum Holdings 5.375% 10/31/26 (b)	8,295,000	7,714,350
Indonesia - 1.4%
Medco Laurel Tree PTE Ltd. 6.95% 11/12/28 (b)	15,125,000	14,328,820
PT Adaro Indonesia 4.25% 10/31/24 (b)	12,520,000	12,175,700
PT Freeport Indonesia:
4.763% 4/14/27 (b)	4,870,000	4,797,486
5.315% 4/14/32 (b)	8,260,000	8,079,313
6.2% 4/14/52 (b)	5,635,000	5,583,933
PT Indonesia Asahan Aluminium 5.45% 5/15/30 (b)	13,335,000	13,397,508
TOTAL INDONESIA		58,362,760
Israel - 0.8%
Energean Israel Finance Ltd. 4.875% 3/30/26 (Reg. S) (b)	15,080,000	13,873,600
Leviathan Bond Ltd.:
6.125% 6/30/25 (Reg. S) (b)	16,920,000	16,370,100
6.5% 6/30/27 (Reg. S) (b)	2,365,000	2,219,231
TOTAL ISRAEL		32,462,931
Kazakhstan - 0.6%
KazMunaiGaz National Co.:
3.5% 4/14/33 (b)	10,395,000	8,631,098
5.75% 4/19/47 (b)	5,240,000	4,589,913
Nostrum Oil & Gas Finance BV:
5% 6/30/26 (b)	9,429,000	4,248,236
14% 6/30/26 pay-in-kind (b)(c)	2,938,257	617,034
Tengizchevroil Finance Co. International Ltd. 3.25% 8/15/30 (b)	7,000,000	5,740,000
TOTAL KAZAKHSTAN		23,826,281
Kuwait - 0.2%
Meglobal BV 4.25% 11/3/26 (b)	5,000,000	4,825,000
MEGlobal Canada, Inc. 5% 5/18/25 (b)	3,000,000	2,964,000
TOTAL KUWAIT		7,789,000
Luxembourg - 0.1%
TMS Issuer SARL 5.78% 8/23/32 (b)	5,860,000	6,109,050
Malaysia - 1.0%
GENM Capital Labuan Ltd. 3.882% 4/19/31 (b)	15,305,000	13,033,164
MISC Capital Two (Labuan) Ltd.:
3.625% 4/6/25 (b)	3,770,000	3,685,250
3.75% 4/6/27 (b)	12,315,000	11,844,198
Petronas Capital Ltd.:
3.404% 4/28/61 (b)	9,610,000	6,830,788
3.5% 4/21/30 (b)	8,990,000	8,406,729
TOTAL MALAYSIA		43,800,129
Mauritius - 0.1%
AXIAN Telecom 7.375% 2/16/27 (b)	5,500,000	5,113,281
Mexico - 4.7%
Bimbo Bakeries U.S.A., Inc. 6.4% 1/15/34 (b)	7,665,000	8,484,159
Braskem Idesa SAPI:
6.99% 2/20/32 (b)	1,565,000	884,413
7.45% 11/15/29 (b)	8,270,000	5,083,569
Comision Federal de Electricidad:
3.348% 2/9/31 (b)	2,970,000	2,457,675
4.688% 5/15/29 (b)	12,425,000	11,683,383
Petroleos Mexicanos:
6.5% 3/13/27	9,810,000	9,117,169
6.5% 6/2/41	11,163,000	7,562,933
6.625% 6/15/35	65,174,000	49,572,974
6.7% 2/16/32	14,394,000	11,911,035
6.875% 10/16/25	11,570,000	11,377,591
6.95% 1/28/60	35,910,000	23,610,825
7.69% 1/23/50	65,975,000	46,924,719
TV Azteca SA de CV 8.25% (Reg. S) (d)	27,098,000	10,493,971
TOTAL MEXICO		199,164,416
Morocco - 0.4%
OCP SA:
3.75% 6/23/31 (b)	14,540,000	12,486,225
5.125% 6/23/51 (b)	4,000,000	3,026,250
6.875% 4/25/44 (b)	1,750,000	1,659,219
TOTAL MOROCCO		17,171,694
Nigeria - 0.3%
Access Bank PLC 6.125% 9/21/26 (b)	5,825,000	5,222,477
IHS Holding Ltd. 5.625% 11/29/26 (b)	5,980,000	5,165,225
IHS Netherlands Holdco BV 8% 9/18/27 (b)	2,200,000	1,950,438
TOTAL NIGERIA		12,338,140
Oman - 0.1%
Lamar Funding Ltd. 3.958% 5/7/25 (b)	6,200,000	6,027,578
Panama - 0.4%
Aeropuerto Internacional de Tocumen SA 5.125% 8/11/61 (b)	5,020,000	3,765,351
C&W Senior Financing Designated Activity Co. 6.875% 9/15/27 (b)	5,000,000	4,650,300
Cable Onda SA 4.5% 1/30/30 (b)	11,160,000	9,653,400
TOTAL PANAMA		18,069,051
Paraguay - 0.1%
Telefonica Celular del Paraguay SA 5.875% 4/15/27 (b)	4,950,000	4,828,329
Peru - 0.1%
Camposol SA 6% 2/3/27 (b)	4,435,000	2,945,771
Qatar - 1.4%
Qatar Petroleum:
2.25% 7/12/31 (b)	28,970,000	24,623,052
3.125% 7/12/41 (b)	11,965,000	9,184,334
3.3% 7/12/51 (b)	36,535,000	26,619,401
TOTAL QATAR		60,426,787
Saudi Arabia - 3.0%
EIG Pearl Holdings SARL 3.545% 8/31/36 (b)	23,470,000	20,396,897
Greensaif Pipelines Bidco SARL:
6.129% 2/23/38 (b)	6,165,000	6,432,792
6.51% 2/23/42 (b)	6,145,000	6,465,692
Saudi Arabian Oil Co.:
2.25% 11/24/30 (b)	18,280,000	15,635,113
3.25% 11/24/50 (b)	20,230,000	14,260,127
3.5% 4/16/29 (b)	34,376,000	32,474,578
4.25% 4/16/39 (b)	18,255,000	16,167,084
4.375% 4/16/49 (b)	16,534,000	14,095,235
TOTAL SAUDI ARABIA		125,927,518
South Africa - 1.9%
Eskom Holdings SOC Ltd.:
6.35% 8/10/28 (b)	13,265,000	12,879,486
7.125% 2/11/25 (b)	24,935,000	24,911,623
8.45% 8/10/28 (b)	8,165,000	8,251,753
Liquid Telecommunications Financing PLC 5.5% 9/4/26 (b)	11,930,000	6,859,750
Sasol Financing U.S.A. LLC 4.375% 9/18/26	23,115,000	21,496,950
Stillwater Mining Co. 4% 11/16/26 (b)	4,100,000	3,628,500
TOTAL SOUTH AFRICA		78,028,062
Tanzania - 0.1%
HTA Group Ltd. 7% 12/18/25 (b)	3,050,000	2,995,710
Ukraine - 0.3%
NAK Naftogaz Ukraine:
7.625% 11/8/28 (b)	7,055,000	3,245,300
7.65% (Reg. S) (d)	12,084,000	8,277,540
TOTAL UKRAINE		11,522,840
United Arab Emirates - 1.9%
Abu Dhabi National Energy Co. PJSC:
4% 10/3/49 (b)	4,435,000	3,726,509
4.696% 4/24/33 (b)	6,820,000	6,885,949
4.875% 4/23/30 (b)	1,990,000	2,038,894
DP World Crescent Ltd.:
3.7495% 1/30/30 (b)	4,770,000	4,477,599
3.875% 7/18/29 (Reg. S)	9,002,000	8,516,972
Galaxy Pipeline Assets BidCo Ltd.:
2.16% 3/31/34 (b)	8,999,817	7,801,716
2.625% 3/31/36 (b)	10,620,000	8,748,225
GEMS MENASA Cayman Ltd. 7.125% 7/31/26 (b)	6,960,000	6,820,800
MDGH GMTN RSC Ltd.:
2.875% 11/7/29 (b)	5,705,000	5,190,067
3.375% 3/28/32 (Reg. S)	2,140,000	1,955,061
4.375% 11/22/33 (b)	5,955,000	5,793,381
5.084% 5/22/53 (b)	10,540,000	10,319,187
5.5% 4/28/33 (b)	5,925,000	6,269,954
TOTAL UNITED ARAB EMIRATES		78,544,314
United States of America - 0.2%
LCPR Senior Secured Financing DAC 5.125% 7/15/29 (b)	9,500,000	8,275,787
Venezuela - 2.3%
Petroleos de Venezuela SA:
5.375% (d)	152,515,000	16,242,848
5.5% (d)	184,250,000	19,806,875
6% (b)(d)	105,540,000	11,607,065
6% (Reg. S) (d)	89,700,000	10,091,250
8.5% (Reg. S) (d)	20,540,000	16,136,738
9% (Reg. S) (d)	45,700,000	5,012,719
9.75% (b)(d)	71,700,000	8,962,500
12.75% (b)(d)	53,000,000	6,890,000
TOTAL VENEZUELA		94,749,995
TOTAL NONCONVERTIBLE BONDS (Cost $1,665,613,846)		1,312,813,149

Government Obligations - 65.0%
		Principal Amount (a)	Value ($)
Angola - 1.6%
Angola Republic:
8% 11/26/29 (b)		10,895,000	9,669,313
8.25% 5/9/28 (b)		18,775,000	17,273,000
8.75% 4/14/32 (b)		9,205,000	8,111,906
9.125% 11/26/49 (b)		7,695,000	6,281,044
9.375% 5/8/48 (b)		13,330,000	11,097,225
9.5% 11/12/25 (b)		16,180,000	15,917,075
TOTAL ANGOLA			68,349,563
Argentina - 1.7%
Argentine Republic:
0.75% 7/9/30 (e)		46,748,473	18,666,665
1% 7/9/29		17,436,997	6,906,446
3.625% 7/9/35 (e)		65,085,665	22,030,196
4.25% 1/9/38 (e)		46,294,088	18,268,573
Buenos Aires Province 6.375% 9/1/37 (b)(e)		9,285,000	3,570,083
Provincia de Cordoba 6.875% 12/10/25 (b)		1,164,955	1,065,934
TOTAL ARGENTINA			70,507,897
Armenia - 0.2%
Republic of Armenia 3.6% 2/2/31 (b)		12,465,000	10,158,975
Bahrain - 0.3%
Bahrain Kingdom 5.625% 5/18/34 (b)		11,770,000	10,637,138
Barbados - 0.2%
Barbados Government 6.5% 10/1/29 (b)		10,230,000	9,611,801
Benin - 0.2%
Republic of Benin 4.875% 1/19/32 (b)	EUR	7,255,000	6,519,955
Bermuda - 0.4%
Bermuda Government:
2.375% 8/20/30 (b)		5,325,000	4,555,538
3.375% 8/20/50 (b)		5,015,000	3,495,756
3.717% 1/25/27 (b)		5,600,000	5,409,250
5% 7/15/32 (b)		3,830,000	3,772,550
TOTAL BERMUDA			17,233,094
Brazil - 1.8%
Brazilian Federative Republic:
3.875% 6/12/30		9,340,000	8,534,425
4.75% 1/14/50		9,500,000	7,291,250
5% 1/27/45		14,450,000	11,740,625
5.625% 2/21/47		8,822,000	7,728,072
7.125% 1/20/37		8,510,000	9,283,048
8.25% 1/20/34		11,336,000	13,309,484
12.25% 3/6/30		13,881,000	19,032,794
TOTAL BRAZIL			76,919,698
Chile - 1.5%
Chilean Republic:
2.45% 1/31/31		31,325,000	27,213,594
3.1% 1/22/61		20,165,000	13,447,534
3.5% 1/31/34		7,100,000	6,321,219
4% 1/31/52		3,960,000	3,250,913
4.34% 3/7/42		5,555,000	4,949,158
5.33% 1/5/54		9,740,000	9,682,169
TOTAL CHILE			64,864,587
Colombia - 3.1%
Colombian Republic:
3% 1/30/30		39,095,000	32,876,452
3.125% 4/15/31		19,000,000	15,443,438
3.875% 2/15/61		6,730,000	4,178,909
4.125% 5/15/51		6,805,000	4,510,439
5% 6/15/45		27,005,000	20,844,484
5.2% 5/15/49		16,120,000	12,573,600
5.625% 2/26/44		11,500,000	9,638,438
6.125% 1/18/41		6,410,000	5,815,072
7.375% 9/18/37		3,680,000	3,812,250
7.5% 2/2/34		4,055,000	4,271,689
8% 4/20/33		4,165,000	4,546,358
8% 11/14/35		5,970,000	6,524,091
8.75% 11/14/53		5,645,000	6,482,930
TOTAL COLOMBIA			131,518,150
Costa Rica - 1.2%
Costa Rican Republic:
5.625% 4/30/43 (b)		17,578,000	16,022,347
6.125% 2/19/31 (b)		11,155,000	11,402,502
6.55% 4/3/34 (b)		9,800,000	10,147,900
7% 4/4/44 (b)		4,575,000	4,769,438
7.3% 11/13/54 (b)		8,200,000	8,887,980
TOTAL COSTA RICA			51,230,167
Dominican Republic - 3.7%
Dominican Republic:
4.5% 1/30/30 (b)		26,505,000	24,351,469
4.875% 9/23/32 (b)		10,930,000	9,936,900
5.3% 1/21/41 (b)		6,000,000	5,190,000
5.875% 1/30/60 (b)		18,130,000	15,664,320
5.95% 1/25/27 (b)		15,654,000	15,686,560
6% 7/19/28 (b)		18,101,000	18,101,000
6.4% 6/5/49 (b)		6,013,000	5,652,220
6.5% 2/15/48 (b)		17,655,000	16,807,560
6.85% 1/27/45 (b)		16,129,000	16,040,291
7.05% 2/3/31 (b)		4,425,000	4,641,604
7.45% 4/30/44 (b)		20,824,000	22,042,204
TOTAL DOMINICAN REPUBLIC			154,114,128
Ecuador - 0.9%
Ecuador Republic:
2.5% 7/31/40 (b)(e)		10,200,000	3,213,000
3.5% 7/31/35 (b)(e)		48,400,000	17,157,800
6% 7/31/30 (b)(e)		39,150,000	18,126,450
TOTAL ECUADOR			38,497,250
Egypt - 2.1%
Arab Republic of Egypt:
7.0529% 1/15/32 (b)		4,740,000	3,236,531
7.5% 1/31/27 (b)		17,344,000	14,568,960
7.5% 2/16/61 (b)		21,325,000	12,401,820
7.6003% 3/1/29 (b)		18,329,000	13,941,496
7.903% 2/21/48 (b)		12,840,000	7,708,013
8.5% 1/31/47 (b)		34,441,000	21,374,946
8.7002% 3/1/49 (b)		25,240,000	15,735,563
TOTAL EGYPT			88,967,329
El Salvador - 0.4%
El Salvador Republic:
6.375% 1/18/27 (b)		2,515,000	2,208,484
7.1246% 1/20/50 (b)		8,578,000	6,055,532
7.625% 2/1/41 (b)		11,695,000	8,727,394
TOTAL EL SALVADOR			16,991,410
Gabon - 0.5%
Gabonese Republic:
6.95% 6/16/25 (b)		9,000,000	8,541,563
7% 11/24/31 (b)		13,095,000	10,860,666
TOTAL GABON			19,402,229
Georgia - 0.3%
Georgia Republic 2.75% 4/22/26 (b)		15,425,000	14,422,375
Ghana - 0.7%
Ghana Republic:
7.75% (b)(d)		12,265,000	5,273,950
8.125% (b)(d)		14,445,000	6,283,575
8.125% (b)(d)		6,566,924	2,998,211
8.627% (b)(d)		12,885,000	5,443,913
10.75% 10/14/30 (b)		15,335,000	9,622,713
TOTAL GHANA			29,622,362
Guatemala - 0.8%
Guatemalan Republic:
3.7% 10/7/33 (b)		2,500,000	2,080,000
4.9% 6/1/30 (b)		2,500,000	2,403,750
5.25% 8/10/29 (b)		9,000,000	8,811,000
5.375% 4/24/32 (b)		5,270,000	5,103,995
6.125% 6/1/50 (b)		5,650,000	5,344,900
6.6% 6/13/36 (b)		7,680,000	7,891,200
TOTAL GUATEMALA			31,634,845
Honduras - 0.1%
Republic of Honduras 6.25% 1/19/27 (b)		2,045,000	1,958,088
Hungary - 1.6%
Hungarian Republic:
2.125% 9/22/31 (b)		11,240,000	9,060,227
3.125% 9/21/51 (b)		20,505,000	13,853,793
5.25% 6/16/29 (b)		6,100,000	6,133,733
5.5% 6/16/34 (b)		10,445,000	10,581,830
6.25% 9/22/32 (b)		4,105,000	4,380,528
6.75% 9/25/52 (b)		12,980,000	14,527,605
7.625% 3/29/41		5,500,000	6,576,075
TOTAL HUNGARY			65,113,791
Indonesia - 2.7%
Indonesian Republic:
3.85% 10/15/30		10,555,000	10,047,041
5.125% 1/15/45 (b)		20,042,000	20,712,154
5.95% 1/8/46 (b)		6,230,000	6,993,175
6.625% 2/17/37 (b)		15,086,000	17,641,191
6.75% 1/15/44 (b)		6,465,000	7,917,605
7.75% 1/17/38 (b)		17,722,000	22,711,851
8.5% 10/12/35 (b)		19,301,000	25,622,078
TOTAL INDONESIA			111,645,095
Ivory Coast - 0.8%
Ivory Coast:
5.875% 10/17/31 (b)	EUR	17,545,000	17,322,973
6.375% 3/3/28 (b)		18,040,000	17,684,838
TOTAL IVORY COAST			35,007,811
Jamaica - 0.2%
Jamaican Government 7.875% 7/28/45		7,490,000	9,149,035
Jordan - 0.7%
Jordanian Kingdom:
5.85% 7/7/30 (b)		8,860,000	8,214,881
6.125% 1/29/26 (b)		4,385,000	4,364,445
7.375% 10/10/47 (b)		7,320,000	6,485,520
7.5% 1/13/29 (b)		5,010,000	5,066,363
7.75% 1/15/28 (b)		6,645,000	6,852,656
TOTAL JORDAN			30,983,865
Kenya - 0.9%
Republic of Kenya:
6.3% 1/23/34 (b)		14,425,000	11,576,063
6.875% 6/24/24 (b)		8,460,000	8,200,913
7% 5/22/27 (b)		14,005,000	13,129,688
7.25% 2/28/28 (b)		1,965,000	1,797,975
8% 5/22/32 (b)		2,365,000	2,134,413
TOTAL KENYA			36,839,052
Lebanon - 0.1%
Lebanese Republic:
5.8% (d)		8,540,000	492,826
6% (d)		5,256,000	307,148
6.1% (d)		22,896,000	1,321,282
6.2% (Reg. S) (d)		5,669,000	334,825
6.375% (d)		35,061,000	2,066,846
6.65% (Reg. S) (d)		3,000,000	178,125
6.75% (d)		3,000,000	179,063
TOTAL LEBANON			4,880,115
Mexico - 1.9%
United Mexican States:
3.25% 4/16/30		19,910,000	17,993,663
4.75% 4/27/32		5,375,000	5,166,719
5.75% 10/12/2110		10,595,000	9,452,727
6.05% 1/11/40		30,348,000	30,604,061
6.338% 5/4/53		5,935,000	6,042,572
6.35% 2/9/35		9,065,000	9,481,423
TOTAL MEXICO			78,741,165
Mongolia - 0.1%
Mongolia Government:
3.5% 7/7/27 (b)		2,675,000	2,389,109
5.125% 4/7/26 (b)		2,010,000	1,951,584
7.875% 6/5/29 (b)		1,620,000	1,656,628
TOTAL MONGOLIA			5,997,321
Morocco - 0.3%
Moroccan Kingdom 6.5% 9/8/33 (b)		9,915,000	10,451,030
Nigeria - 2.3%
Republic of Nigeria:
6.125% 9/28/28 (b)		13,115,000	11,606,775
6.5% 11/28/27 (b)		20,043,000	18,276,711
7.143% 2/23/30 (b)		11,415,000	10,262,798
7.625% 11/21/25 (b)		15,862,000	15,639,932
7.625% 11/28/47 (b)		18,415,000	14,562,766
7.696% 2/23/38 (b)		3,500,000	2,865,625
7.875% 2/16/32 (b)		9,000,000	8,069,063
8.375% 3/24/29 (b)		13,600,000	13,026,250
TOTAL NIGERIA			94,309,920
Oman - 2.7%
Sultanate of Oman:
5.625% 1/17/28 (b)		21,625,000	22,003,438
6% 8/1/29 (b)		11,510,000	11,912,850
6.25% 1/25/31 (b)		15,885,000	16,684,214
6.5% 3/8/47 (b)		27,725,000	28,244,844
6.75% 1/17/48 (b)		30,140,000	31,468,044
7% 1/25/51 (b)		2,880,000	3,101,400
TOTAL OMAN			113,414,790
Pakistan - 0.8%
Islamic Republic of Pakistan:
6% 4/8/26 (b)		24,660,000	17,346,769
6.875% 12/5/27 (b)		22,905,000	15,532,453
7.875% 3/31/36 (b)		1,293,000	809,883
TOTAL PAKISTAN			33,689,105
Panama - 2.0%
Panamanian Republic:
2.252% 9/29/32		22,155,000	16,166,227
3.16% 1/23/30		14,515,000	12,351,358
3.298% 1/19/33		16,210,000	12,816,031
3.87% 7/23/60		17,120,000	10,223,850
4.3% 4/29/53		7,000,000	4,674,688
4.5% 5/15/47		8,025,000	5,685,211
4.5% 4/16/50		10,760,000	7,451,300
6.4% 2/14/35		9,790,000	9,545,250
6.853% 3/28/54		3,685,000	3,440,869
TOTAL PANAMA			82,354,784
Paraguay - 0.9%
Republic of Paraguay:
2.739% 1/29/33 (b)		5,873,000	4,815,860
4.95% 4/28/31 (b)		17,130,000	16,718,880
5.4% 3/30/50 (b)		10,075,000	8,981,863
5.6% 3/13/48 (b)		7,470,000	6,827,580
TOTAL PARAGUAY			37,344,183
Peru - 1.1%
Peruvian Republic:
2.783% 1/23/31		12,415,000	10,789,411
3% 1/15/34		21,165,000	17,818,284
3.3% 3/11/41		24,840,000	19,266,525
TOTAL PERU			47,874,220
Philippines - 0.8%
Philippine Republic:
2.65% 12/10/45		7,890,000	5,577,244
2.95% 5/5/45		3,200,000	2,392,000
5% 7/17/33		4,140,000	4,248,675
5.5% 1/17/48		3,675,000	3,861,047
5.609% 4/13/33		6,190,000	6,602,022
5.95% 10/13/47		9,890,000	10,993,353
TOTAL PHILIPPINES			33,674,341
Poland - 0.4%
Bank Gospodarstwa Krajowego:
5.375% 5/22/33 (b)		6,800,000	6,886,020
6.25% 10/31/28 (b)		3,285,000	3,465,018
Polish Government 5.5% 4/4/53		6,960,000	7,241,254
TOTAL POLAND			17,592,292
Qatar - 2.6%
State of Qatar:
3.75% 4/16/30 (b)		27,950,000	27,271,095
4.4% 4/16/50 (b)		28,995,000	26,749,917
4.817% 3/14/49 (b)		38,811,000	37,708,379
5.103% 4/23/48 (b)		11,510,000	11,633,157
9.75% 6/15/30 (b)		3,827,000	4,995,498
TOTAL QATAR			108,358,046
Romania - 1.7%
Romanian Republic:
2% 4/14/33 (Reg. S)	EUR	7,840,000	6,435,401
3% 2/14/31 (b)		22,614,000	19,225,744
3.375% 1/28/50 (Reg. S)	EUR	14,940,000	11,199,416
3.624% 5/26/30 (b)	EUR	5,110,000	5,179,623
3.625% 3/27/32 (b)		10,504,000	9,067,893
4% 2/14/51 (b)		10,990,000	7,917,636
7.125% 1/17/33 (b)		5,770,000	6,225,253
7.625% 1/17/53 (b)		4,154,000	4,641,347
TOTAL ROMANIA			69,892,313
Rwanda - 0.2%
Rwanda Republic 5.5% 8/9/31 (b)		11,975,000	9,553,805
Saudi Arabia - 1.4%
Kingdom of Saudi Arabia:
2.25% 2/2/33 (b)		18,170,000	15,018,641
3.45% 2/2/61 (b)		9,925,000	6,963,008
3.75% 1/21/55 (b)		19,480,000	14,780,450
4.5% 10/26/46 (b)		14,169,000	12,504,143
4.5% 4/22/60 (b)		10,670,000	9,212,878
TOTAL SAUDI ARABIA			58,479,120
Senegal - 0.3%
Republic of Senegal:
6.25% 5/23/33 (b)		9,965,000	8,875,078
6.75% 3/13/48 (b)		5,110,000	4,009,753
TOTAL SENEGAL			12,884,831
Serbia - 0.6%
Republic of Serbia:
2.125% 12/1/30 (b)		18,590,000	14,864,192
6.25% 5/26/28 (b)		3,140,000	3,209,739
6.5% 9/26/33 (b)		6,390,000	6,536,267
TOTAL SERBIA			24,610,198
South Africa - 1.1%
South African Republic:
5% 10/12/46		3,190,000	2,348,638
5.65% 9/27/47		22,135,000	17,652,663
5.75% 9/30/49		25,420,000	20,271,942
7.3% 4/20/52		7,475,000	7,063,875
TOTAL SOUTH AFRICA			47,337,118
Sri Lanka - 1.0%
Democratic Socialist Republic of Sri Lanka:
6.2% (b)(d)		14,360,000	7,197,950
6.825% (b)(d)		13,445,000	6,832,027
6.85% (b)(d)		14,285,000	7,280,886
7.55% (b)(d)		12,490,000	6,248,903
7.85% (b)(d)		26,015,000	13,007,500
TOTAL SRI LANKA			40,567,266
Turkey - 3.4%
Export Credit Bank of Turkey 9% 1/28/27 (b)		5,785,000	6,018,208
Turkish Republic:
4.75% 1/26/26		8,400,000	8,148,000
4.875% 4/16/43		23,555,000	17,197,506
5.125% 2/17/28		11,310,000	10,758,638
5.75% 5/11/47		13,175,000	10,276,500
6% 3/25/27		7,000,000	6,895,000
6% 1/14/41		22,183,000	18,779,019
6.125% 10/24/28		8,780,000	8,615,375
6.375% 10/14/25		17,175,000	17,196,469
6.625% 2/17/45		530,000	464,413
9.125% 7/13/30		8,800,000	9,691,000
9.375% 3/14/29		20,365,000	22,477,869
9.375% 1/19/33		2,175,000	2,452,313
26.2% 10/5/33	TRY	109,610,000	3,845,998
TOTAL TURKEY			142,816,308
Ukraine - 1.2%
Ukraine Government:
6.876% 5/21/31 (b)		7,670,000	1,737,734
7.253% 3/15/35 (b)		15,850,000	3,677,200
7.375% 9/25/34 (b)		11,640,000	2,706,300
7.75% 9/1/24 (b)		29,964,000	9,049,128
7.75% 9/1/25 (b)		43,671,000	12,839,274
7.75% 9/1/26 (b)		35,377,000	9,693,298
7.75% 9/1/27 (b)		7,275,000	1,942,425
7.75% 9/1/28 (b)		7,360,000	2,020,320
7.75% 9/1/29 (b)		10,846,000	2,941,978
7.75% 8/1/41 (b)(c)		8,905,000	3,960,944
9.75% 11/1/30 (b)		3,105,000	881,044
TOTAL UKRAINE			51,449,645
United Arab Emirates - 1.8%
Abu Dhabi National Energy Co. PJSC 4.375% 1/24/29 (b)		6,105,000	6,065,562
Emirate of Abu Dhabi:
3.125% 9/30/49 (b)		42,178,000	30,910,569
3.875% 4/16/50 (b)		34,465,000	28,835,142
Emirate of Dubai 3.9% 9/9/50 (Reg. S)		15,155,000	11,342,570
TOTAL UNITED ARAB EMIRATES			77,153,843
United States of America - 4.0%
U.S. Treasury Bonds:
2.875% 5/15/52		130,074,000	103,561,230
3.625% 2/15/53		19,173,000	17,705,067
U.S. Treasury Notes:
3.625% 3/31/30		6,132,000	6,036,906
3.75% 5/31/30		14,574,000	14,444,770
4% 2/28/30		9,933,000	9,979,949
4.625% 9/30/28 (f)		17,283,000	17,839,297
TOTAL UNITED STATES OF AMERICA			169,567,219
Uruguay - 0.7%
Uruguay Republic:
5.1% 6/18/50		24,210,000	24,262,959
5.75% 10/28/34		5,850,000	6,332,625
TOTAL URUGUAY			30,595,584
Uzbekistan - 0.5%
Republic of Uzbekistan:
3.7% 11/25/30 (b)		7,400,000	6,211,375
3.9% 10/19/31 (b)		13,255,000	11,101,063
5.375% 2/20/29 (b)		4,250,000	4,026,875
TOTAL UZBEKISTAN			21,339,313
Venezuela - 2.2%
Venezuelan Republic:
6% (d)		17,250,000	2,288,806
7% (d)		18,925,000	2,753,261
7.65% (d)		34,825,000	5,223,068
7.75% (Reg. S) (d)		29,380,000	3,959,553
8.25% (d)		30,860,000	4,620,503
9% (Reg. S) (d)		43,195,000	6,502,928
9.25% (d)		62,675,000	11,680,113
9.25% (Reg. S) (d)		70,265,000	11,737,732
9.375% (d)		46,005,000	7,954,056
11.75% (Reg. S) (d)		65,000,000	12,187,500
11.95% (Reg. S) (d)		87,250,000	16,337,607
12.75% (d)		42,425,000	6,819,206
TOTAL VENEZUELA			92,064,333
Zambia - 0.3%
Republic of Zambia:
8.5% (b)(d)		2,190,000	1,357,800
8.97% (b)(d)		15,380,000	9,477,925
TOTAL ZAMBIA			10,835,725
TOTAL GOVERNMENT OBLIGATIONS (Cost $3,207,420,672)			2,729,727,623

Common Stocks - 0.0%
	Shares	Value ($)
Kazakhstan - 0.0%
Nostrum Oil & Gas LP warrants (g)(h) (Cost $0)	709,143	7

Preferred Securities - 1.3%
	Principal Amount (a)	Value ($)
Brazil - 0.2%
Cosan Overseas Ltd. 8.25% (i)	7,030,000	7,067,108
Mexico - 0.8%
Banco Mercantil del Norte SA:
6.75% (b)(c)(i)	12,025,000	11,861,547
7.625% (b)(c)(i)	5,385,000	5,274,796
CEMEX S.A.B. de CV 5.125% (b)(c)(i)	16,320,000	15,685,342
TOTAL MEXICO		32,821,685
Russia - 0.0%
Tinkoff Credit Systems 6% (b)(c)(d)(h)(i)	6,660,000	333,000
United Arab Emirates - 0.3%
DP World Salaam 6% (Reg. S) (c)(i)	13,905,000	14,257,218
TOTAL PREFERRED SECURITIES (Cost $62,728,134)		54,479,011

Money Market Funds - 0.4%
	Shares	Value ($)
Fidelity Cash Central Fund 5.40% (j) (Cost $17,641,506)	17,637,978	17,641,506

TOTAL INVESTMENT IN SECURITIES - 98.0% (Cost $4,953,404,158)	4,114,661,296
NET OTHER ASSETS (LIABILITIES) - 2.0%	84,448,718
NET ASSETS - 100.0%	4,199,110,014

Futures Contracts
	Number of contracts	Expiration Date	Notional Amount ($)	Value ($)	Unrealized Appreciation/ (Depreciation) ($)
Purchased

Treasury Contracts
CBOT Ultra Long Term U.S. Treasury Bond Contracts (United States)	183	Mar 2024	24,447,656	2,204,154	2,204,154

The notional amount of futures purchased as a percentage of Net Assets is 0.6%

Currency Abbreviations

EUR	-	European Monetary Unit
TRY	-	Turkish Lira

Legend

(a)	Amount is stated in United States dollars unless otherwise noted.

(b)

Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At the end of the period, the value of these securities amounted to $2,642,242,893 or 62.9% of net assets.

(c)	Coupon rates for floating and adjustable rate securities reflect the rates in effect at period end.

(d)	Non-income producing - Security is in default.

(e)	Security initially issued at one coupon which converts to a higher coupon at a specified date. The rate shown is the rate at period end.

(f)	Security or a portion of the security was pledged to cover margin requirements for futures contracts. At period end, the value of securities pledged amounted to $1,267,926.

(g)	Non-income producing

(h)	Level 3 security

(i)	Security is perpetual in nature with no stated maturity date.

(j)

Affiliated fund that is generally available only to investment companies and other accounts managed by Fidelity Investments. The rate quoted is the annualized seven-day yield of the fund at period end. A complete unaudited listing of the fund's holdings as of its most recent quarter end is available upon request. In addition, each Fidelity Central Fund's financial statements, which are not covered by the Fund's Report of Independent Registered Public Accounting Firm, are available on the SEC's website or upon request.

Affiliated Central Funds

Fiscal year to date information regarding the Fund's investments in Fidelity Central Funds, including the ownership percentage, is presented below.

Affiliate	Value, beginning of period ($)	Purchases ($)	Sales Proceeds ($)	Dividend Income ($)	Realized Gain (loss) ($)	Change in Unrealized appreciation (depreciation) ($)	Value, end of period ($)	% ownership, end of period
Fidelity Cash Central Fund 5.40%	81,144,900	1,906,598,362	1,970,101,755	2,485,771	28,387	(28,388)	17,641,506	0.0%
Total	81,144,900	1,906,598,362	1,970,101,755	2,485,771	28,387	(28,388)	17,641,506

Amounts in the dividend income column in the above table include any capital gain distributions from underlying funds, which are presented in the corresponding line item in the Statement of Operations, if applicable.

Amounts included in the purchases and sales proceeds columns may include in-kind transactions, if applicable.

Investment Valuation

The following is a summary of the inputs used, as of December 31, 2023, involving the Fund's assets and liabilities carried at fair value. The inputs or methodology used for valuing securities may not be an indication of the risk associated with investing in those securities. For more information on valuation inputs, and their aggregation into the levels used below, please refer to the Investment Valuation section in the accompanying Notes to Financial Statements.

Valuation Inputs at Reporting Date:
Description	Total ($)	Level 1 ($)	Level 2 ($)	Level 3 ($)
Investments in Securities:

Equities:
Energy	7	-	-	7

Corporate Bonds	1,312,813,149	-	1,312,813,149	-

Government Obligations	2,729,727,623	-	2,729,727,623	-

Preferred Securities	54,479,011	-	54,146,011	333,000

Money Market Funds	17,641,506	17,641,506	-	-
Total Investments in Securities:	4,114,661,296	17,641,506	4,096,686,783	333,007
Derivative Instruments: Assets
Futures Contracts	2,204,154	2,204,154	-	-
Total Assets	2,204,154	2,204,154	-	-
Total Derivative Instruments:	2,204,154	2,204,154	-	-

Value of Derivative Instruments

The following table is a summary of the Fund's value of derivative instruments by primary risk exposure as of December 31, 2023. For additional information on derivative instruments, please refer to the Derivative Instruments section in the accompanying Notes to Financial Statements.

Primary Risk Exposure / Derivative Type	Value
	Asset ($)	Liability ($)
Interest Rate Risk
Futures Contracts (a)	2,204,154	0
Total Interest Rate Risk	2,204,154	0
Total Value of Derivatives	2,204,154	0

(a)Reflects gross cumulative appreciation (depreciation) on futures contracts as presented in the Schedule of Investments. In the Statement of Assets and Liabilities, the period end daily variation margin is included in receivable or payable for daily variation margin on futures contracts, and the net cumulative appreciation (depreciation) is included in Total accumulated earnings (loss).

Financial Statements

Statement of Assets and Liabilities
				December 31, 2023

Assets
Investment in securities, at value - See accompanying schedule:
Unaffiliated issuers (cost $4,935,762,652)	$	4,097,019,790
Fidelity Central Funds (cost $17,641,506)		17,641,506


Total Investment in Securities (cost $4,953,404,158)			$	4,114,661,296
Foreign currency held at value (cost $502)				501
Receivable for investments sold				111,303
Receivable for fund shares sold				1,324,713
Interest receivable				94,070,190
Distributions receivable from Fidelity Central Funds				115,819
Prepaid expenses				4,170
Other receivables				735
Total assets				4,210,288,727
Liabilities
Payable for fund shares redeemed	$	6,163,260
Distributions payable		2,103,268
Accrued management fee		2,227,713
Distribution and service plan fees payable		29,228
Payable for daily variation margin on futures contracts		97,219
Other affiliated payables		460,992
Other payables and accrued expenses		97,033
Total Liabilities				11,178,713
Net Assets			$	4,199,110,014
Net Assets consist of:
Paid in capital			$	6,138,524,861
Total accumulated earnings (loss)				(1,939,414,847)
Net Assets			$	4,199,110,014

Net Asset Value and Maximum Offering Price
Class A :
Net Asset Value and redemption price per share ($75,900,628 ÷ 6,112,475 shares)(a)			$	12.42
Maximum offering price per share (100/96.00 of $12.42)			$	12.94
Class M :
Net Asset Value and redemption price per share ($25,506,777 ÷ 2,053,503 shares)(a)			$	12.42
Maximum offering price per share (100/96.00 of $12.42)			$	12.94
Class C :
Net Asset Value and offering price per share ($9,961,172 ÷ 802,290 shares)(a)			$	12.42
Fidelity New Markets Income Fund :
Net Asset Value, offering price and redemption price per share ($1,634,399,733 ÷ 131,612,522 shares)			$	12.42
Class I :
Net Asset Value, offering price and redemption price per share ($743,317,859 ÷ 59,847,809 shares)			$	12.42
Class Z :
Net Asset Value, offering price and redemption price per share ($1,710,023,845 ÷ 137,705,336 shares)			$	12.42
(a)Redemption price per share is equal to net asset value less any applicable contingent deferred sales charge.

Statement of Operations
				Year ended December 31, 2023
Investment Income
Dividends			$	3,445,617
Interest				283,012,878
Income from Fidelity Central Funds				2,485,771
Total Income				288,944,266
Expenses
Management fee	$	26,311,890
Transfer agent fees		4,315,338
Distribution and service plan fees		360,726
Accounting fees and expenses		1,135,373
Custodian fees and expenses		16,114
Independent trustees' fees and expenses		25,852
Registration fees		103,662
Audit		107,730
Legal		792,063
Interest		9,418
Miscellaneous		19,878
Total expenses before reductions		33,198,044
Expense reductions		(147,323)
Total expenses after reductions				33,050,721
Net Investment income (loss)				255,893,545
Realized and Unrealized Gain (Loss)
Net realized gain (loss) on:
Investment Securities:
Unaffiliated issuers		(187,510,502)
Fidelity Central Funds		28,387
Foreign currency transactions		36,453
Futures contracts		(1,694,634)
Total net realized gain (loss)				(189,140,296)
Change in net unrealized appreciation (depreciation) on:
Investment Securities:
Unaffiliated issuers		461,655,195
Fidelity Central Funds		(28,388)
Assets and liabilities in foreign currencies		(18,008)
Futures contracts		2,204,154
Total change in net unrealized appreciation (depreciation)				463,812,953
Net gain (loss)				274,672,657
Net increase (decrease) in net assets resulting from operations			$	530,566,202

Statement of Changes in Net Assets

		Year ended December 31, 2023		Year ended December 31, 2022
Increase (Decrease) in Net Assets
Operations
Net investment income (loss)	$	255,893,545	$	254,526,403
Net realized gain (loss)		(189,140,296)		(418,668,241)
Change in net unrealized appreciation (depreciation)		463,812,953		(696,307,447)
Net increase (decrease) in net assets resulting from operations		530,566,202		(860,449,285)
Distributions to shareholders		(224,863,302)		(228,839,655)

Share transactions - net increase (decrease)		(338,842,752)		(469,842,710)
Total increase (decrease) in net assets		(33,139,852)		(1,559,131,650)

Net Assets
Beginning of period		4,232,249,866		5,791,381,516
End of period	$	4,199,110,014	$	4,232,249,866

Financial Highlights

Fidelity Advisor® New Markets Income Fund Class A

Years ended December 31,		2023		2022		2021		2020		2019
Selected Per-Share Data
Net asset value, beginning of period	$	11.51	$	14.24	$	15.09	$	15.07	$	14.27
Income from Investment Operations
Net investment income (loss) A,B		.690		.621		.575		.649		.748
Net realized and unrealized gain (loss)		.823		(2.796)		(.888)		(.062)		.740
Total from investment operations		1.513		(2.175)		(.313)		.587		1.488
Distributions from net investment income		(.603)		(.555)		(.497)		(.556)		(.688)
Distributions from net realized gain		-		-		(.040)		(.011)		-
Total distributions		(.603)		(.555)		(.537)		(.567)		(.688)
Net asset value, end of period	$	12.42	$	11.51	$	14.24	$	15.09	$	15.07
Total Return C,D		13.61%		(15.30)%		(2.09)%		4.19%		10.56%
Ratios to Average Net Assets B,E,F
Expenses before reductions		1.16%		1.13%		1.12%		1.13%		1.12%
Expenses net of fee waivers, if any		1.15%		1.13%		1.12%		1.13%		1.12%
Expenses net of all reductions		1.15%		1.13%		1.12%		1.13%		1.12%
Net investment income (loss)		5.95%		5.12%		3.93%		4.51%		5.01%
Supplemental Data
Net assets, end of period (000 omitted)	$	75,901	$	78,302	$	118,896	$	136,626	$	193,262
Portfolio turnover rate G		19%		26%		30%		91%		79% H

ACalculated based on average shares outstanding during the period.

BNet investment income (loss) is affected by the timing of the declaration of dividends by any underlying mutual funds or exchange-traded funds (ETFs). Net investment income (loss) of any mutual funds or ETFs is not included in the Fund's net investment income (loss) ratio.

CTotal returns would have been lower if certain expenses had not been reduced during the applicable periods shown.

DTotal returns do not include the effect of the sales charges.

EFees and expenses of any underlying mutual funds or exchange-traded funds (ETFs) are not included in the Fund's expense ratio. The Fund indirectly bears its proportionate share of these expenses. For additional expense information related to investments in Fidelity Central Funds, please refer to the "Investments in Fidelity Central Funds" note found in the Notes to Financial Statements section of the most recent Annual or Semi-Annual report.

FExpense ratios reflect operating expenses of the class. Expenses before reductions do not reflect amounts reimbursed, waived, or reduced through arrangements with the investment adviser, brokerage services, or other offset arrangements, if applicable, and do not represent the amount paid by the class during periods when reimbursements, waivers or reductions occur.

GAmount does not include the portfolio activity of any underlying mutual funds or exchange-traded funds (ETFs).

HPortfolio turnover rate excludes securities received or delivered in-kind.

Fidelity Advisor® New Markets Income Fund Class M

Years ended December 31,		2023		2022		2021		2020		2019
Selected Per-Share Data
Net asset value, beginning of period	$	11.52	$	14.24	$	15.10	$	15.08	$	14.27
Income from Investment Operations
Net investment income (loss) A,B		.690		.621		.576		.647		.749
Net realized and unrealized gain (loss)		.813		(2.786)		(.898)		(.059)		.748
Total from investment operations		1.503		(2.165)		(.322)		.588		1.497
Distributions from net investment income		(.603)		(.555)		(.498)		(.557)		(.687)
Distributions from net realized gain		-		-		(.040)		(.011)		-
Total distributions		(.603)		(.555)		(.538)		(.568)		(.687)
Net asset value, end of period	$	12.42	$	11.52	$	14.24	$	15.10	$	15.08
Total Return C,D		13.51%		(15.23)%		(2.15)%		4.20%		10.63%
Ratios to Average Net Assets B,E,F
Expenses before reductions		1.16%		1.13%		1.12%		1.13%		1.13%
Expenses net of fee waivers, if any		1.16%		1.13%		1.11%		1.13%		1.13%
Expenses net of all reductions		1.15%		1.13%		1.11%		1.12%		1.13%
Net investment income (loss)		5.95%		5.11%		3.94%		4.51%		5.01%
Supplemental Data
Net assets, end of period (000 omitted)	$	25,507	$	25,747	$	38,589	$	44,941	$	53,609
Portfolio turnover rate G		19%		26%		30%		91%		79% H

ACalculated based on average shares outstanding during the period.

CTotal returns would have been lower if certain expenses had not been reduced during the applicable periods shown.

DTotal returns do not include the effect of the sales charges.

GAmount does not include the portfolio activity of any underlying mutual funds or exchange-traded funds (ETFs).

HPortfolio turnover rate excludes securities received or delivered in-kind.

Fidelity Advisor® New Markets Income Fund Class C

Years ended December 31,		2023		2022		2021		2020		2019
Selected Per-Share Data
Net asset value, beginning of period	$	11.51	$	14.24	$	15.09	$	15.07	$	14.27
Income from Investment Operations
Net investment income (loss) A,B		.609		.536		.471		.542		.641
Net realized and unrealized gain (loss)		.823		(2.798)		(.891)		(.063)		.737
Total from investment operations		1.432		(2.262)		(.420)		.479		1.378
Distributions from net investment income		(.522)		(.468)		(.390)		(.448)		(.578)
Distributions from net realized gain		-		-		(.040)		(.011)		-
Total distributions		(.522)		(.468)		(.430)		(.459)		(.578)
Net asset value, end of period	$	12.42	$	11.51	$	14.24	$	15.09	$	15.07
Total Return C,D		12.83%		(15.91)%		(2.81)%		3.43%		9.75%
Ratios to Average Net Assets B,E,F
Expenses before reductions		1.86%		1.85%		1.86%		1.86%		1.86%
Expenses net of fee waivers, if any		1.85%		1.85%		1.85%		1.86%		1.86%
Expenses net of all reductions		1.85%		1.85%		1.85%		1.86%		1.85%
Net investment income (loss)		5.25%		4.39%		3.20%		3.77%		4.28%
Supplemental Data
Net assets, end of period (000 omitted)	$	9,961	$	12,908	$	23,000	$	44,401	$	64,290
Portfolio turnover rate G		19%		26%		30%		91%		79% H

ACalculated based on average shares outstanding during the period.

CTotal returns would have been lower if certain expenses had not been reduced during the applicable periods shown.

DTotal returns do not include the effect of the contingent deferred sales charge.

GAmount does not include the portfolio activity of any underlying mutual funds or exchange-traded funds (ETFs).

HPortfolio turnover rate excludes securities received or delivered in-kind.

Fidelity® New Markets Income Fund

Years ended December 31,		2023		2022		2021		2020		2019
Selected Per-Share Data
Net asset value, beginning of period	$	11.51	$	14.24	$	15.10	$	15.07	$	14.27
Income from Investment Operations
Net investment income (loss) A,B		.727		.658		.624		.693		.795
Net realized and unrealized gain (loss)		.823		(2.796)		(.899)		(.050)		.738
Total from investment operations		1.550		(2.138)		(.275)		.643		1.533
Distributions from net investment income		(.640)		(.592)		(.545)		(.602)		(.733)
Distributions from net realized gain		-		-		(.040)		(.011)		-
Total distributions		(.640)		(.592)		(.585)		(.613)		(.733)
Net asset value, end of period	$	12.42	$	11.51	$	14.24	$	15.10	$	15.07
Total Return C		13.97%		(15.04)%		(1.84)%		4.60%		10.89%
Ratios to Average Net Assets B,D,E
Expenses before reductions		.84%		.82%		.80%		.81%		.82%
Expenses net of fee waivers, if any		.84%		.82%		.79%		.81%		.82%
Expenses net of all reductions		.84%		.82%		.79%		.80%		.82%
Net investment income (loss)		6.27%		5.43%		4.26%		4.83%		5.32%
Supplemental Data
Net assets, end of period (000 omitted)	$	1,634,400	$	1,613,198	$	2,313,928	$	3,430,477	$	4,227,156
Portfolio turnover rate F		19%		26%		30%		91%		79% G

ACalculated based on average shares outstanding during the period.

CTotal returns would have been lower if certain expenses had not been reduced during the applicable periods shown.

DFees and expenses of any underlying mutual funds or exchange-traded funds (ETFs) are not included in the Fund's expense ratio. The Fund indirectly bears its proportionate share of these expenses. For additional expense information related to investments in Fidelity Central Funds, please refer to the "Investments in Fidelity Central Funds" note found in the Notes to Financial Statements section of the most recent Annual or Semi-Annual report.

EExpense ratios reflect operating expenses of the class. Expenses before reductions do not reflect amounts reimbursed, waived, or reduced through arrangements with the investment adviser, brokerage services, or other offset arrangements, if applicable, and do not represent the amount paid by the class during periods when reimbursements, waivers or reductions occur.

FAmount does not include the portfolio activity of any underlying mutual funds or exchange-traded funds (ETFs).

GPortfolio turnover rate excludes securities received or delivered in-kind.

Fidelity Advisor® New Markets Income Fund Class I

Years ended December 31,		2023		2022		2021		2020		2019
Selected Per-Share Data
Net asset value, beginning of period	$	11.51	$	14.25	$	15.10	$	15.08	$	14.27
Income from Investment Operations
Net investment income (loss) A,B		.726		.659		.620		.690		.798
Net realized and unrealized gain (loss)		.822		(2.808)		(.890)		(.059)		.743
Total from investment operations		1.548		(2.149)		(.270)		.631		1.541
Distributions from net investment income		(.638)		(.591)		(.540)		(.600)		(.731)
Distributions from net realized gain		-		-		(.040)		(.011)		-
Total distributions		(.638)		(.591)		(.580)		(.611)		(.731)
Net asset value, end of period	$	12.42	$	11.51	$	14.25	$	15.10	$	15.08
Total Return C		13.95%		(15.11)%		(1.80)%		4.50%		10.95%
Ratios to Average Net Assets B,D,E
Expenses before reductions		.85%		.83%		.83%		.83%		.83%
Expenses net of fee waivers, if any		.85%		.83%		.83%		.83%		.82%
Expenses net of all reductions		.85%		.83%		.83%		.83%		.82%
Net investment income (loss)		6.25%		5.42%		4.22%		4.80%		5.31%
Supplemental Data
Net assets, end of period (000 omitted)	$	743,318	$	769,765	$	1,148,584	$	1,665,050	$	2,081,780
Portfolio turnover rate F		19%		26%		30%		91%		79% G

ACalculated based on average shares outstanding during the period.

CTotal returns would have been lower if certain expenses had not been reduced during the applicable periods shown.

FAmount does not include the portfolio activity of any underlying mutual funds or exchange-traded funds (ETFs).

GPortfolio turnover rate excludes securities received or delivered in-kind.

Fidelity Advisor® New Markets Income Fund Class Z

Years ended December 31,		2023		2022		2021		2020		2019
Selected Per-Share Data
Net asset value, beginning of period	$	11.51	$	14.24	$	15.10	$	15.08	$	14.27
Income from Investment Operations
Net investment income (loss) A,B		.737		.666		.628		.698		.800
Net realized and unrealized gain (loss)		.823		(2.793)		(.893)		(.057)		.756
Total from investment operations		1.560		(2.127)		(.265)		.641		1.556
Distributions from net investment income		(.650)		(.603)		(.555)		(.610)		(.746)
Distributions from net realized gain		-		-		(.040)		(.011)		-
Total distributions		(.650)		(.603)		(.595)		(.621)		(.746)
Net asset value, end of period	$	12.42	$	11.51	$	14.24	$	15.10	$	15.08
Total Return C		14.07%		(14.96)%		(1.77)%		4.61%		11.06%
Ratios to Average Net Assets B,D,E
Expenses before reductions		.75%		.73%		.72%		.73%		.73%
Expenses net of fee waivers, if any		.75%		.73%		.72%		.73%		.73%
Expenses net of all reductions		.75%		.73%		.72%		.73%		.73%
Net investment income (loss)		6.35%		5.52%		4.33%		4.91%		5.40%
Supplemental Data
Net assets, end of period (000 omitted)	$	1,710,024	$	1,732,330	$	2,148,384	$	1,225,147	$	1,523,041
Portfolio turnover rate F		19%		26%		30%		91%		79% G

ACalculated based on average shares outstanding during the period.

CTotal returns would have been lower if certain expenses had not been reduced during the applicable periods shown.

FAmount does not include the portfolio activity of any underlying mutual funds or exchange-traded funds (ETFs).

GPortfolio turnover rate excludes securities received or delivered in-kind.

Notes to Financial Statements

For the period ended December 31, 2023

1. Organization.

Fidelity New Markets Income Fund (the Fund) is a non-diversified fund of Fidelity Summer Street Trust (the Trust) and is authorized to issue an unlimited number of shares. The Trust is registered under the Investment Company Act of 1940, as amended (the 1940 Act), as an open-end management investment company organized as a Massachusetts business trust. Fund offers Class A, Class M, Class C, New Markets Income, Class I and Class Z shares, each of which has equal rights as to assets and voting privileges. Class A, Class M, Class C, and Class I and Class Z are Fidelity Advisor classes. Each class has exclusive voting rights with respect to matters that affect that class. Class C shares will automatically convert to Class A shares after a holding period of eight years from the initial date of purchase, with certain exceptions. The Fund's investments in emerging markets can be subject to social, economic, regulatory, and political uncertainties and can be extremely volatile.

2. Investments in Fidelity Central Funds.

Funds may invest in Fidelity Central Funds, which are open-end investment companies generally available only to other investment companies and accounts managed by the investment adviser and its affiliates. The Schedule of Investments lists any Fidelity Central Funds held as an investment as of period end, but does not include the underlying holdings of each Fidelity Central Fund. An investing fund indirectly bears its proportionate share of the expenses of the underlying Fidelity Central Funds.

Based on its investment objective, each Fidelity Central Fund may invest or participate in various investment vehicles or strategies that are similar to those of the investing fund. These strategies are consistent with the investment objectives of the investing fund and may involve certain economic risks which may cause a decline in value of each of the Fidelity Central Funds and thus a decline in the value of the investing fund.

Fidelity Central Fund	Investment Manager	Investment Objective	Investment Practices	Expense RatioA
Fidelity Money Market Central Funds	Fidelity Management & Research Company LLC (FMR)	Each fund seeks to obtain a high level of current income consistent with the preservation of capital and liquidity.	Short-term Investments	Less than .005%

A Expenses expressed as a percentage of average net assets and are as of each underlying Central Fund's most recent annual or semi-annual shareholder report.

A complete unaudited list of holdings for each Fidelity Central Fund is available upon request or at the Securities and Exchange Commission website at www.sec.gov. In addition, the financial statements of the Fidelity Central Funds which contain the significant accounting policies (including investment valuation policies) of those funds, and are not covered by the Report of Independent Registered Public Accounting Firm, are available on the Securities and Exchange Commission website or upon request.

3. Significant Accounting Policies.

The Fund is an investment company and applies the accounting and reporting guidance of the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 Financial Services - Investment Companies. The financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP), which require management to make certain estimates and assumptions at the date of the financial statements. Actual results could differ from those estimates. Subsequent events, if any, through the date that the financial statements were issued have been evaluated in the preparation of the financial statements. The Fund's Schedule of Investments lists any underlying mutual funds or exchange-traded funds (ETFs) but does not include the underlying holdings of these funds. The following summarizes the significant accounting policies of the Fund:

Investment Valuation. Investments are valued as of 4:00 p.m. Eastern time on the last calendar day of the period. The Board of Trustees (the Board) has designated the Fund's investment adviser as the valuation designee responsible for the fair valuation function and performing fair value determinations as needed. The investment adviser has established a Fair Value Committee (the Committee) to carry out the day-to-day fair valuation responsibilities and has adopted policies and procedures to govern the fair valuation process and the activities of the Committee. In accordance with these fair valuation policies and procedures, which have been approved by the Board, the Fund attempts to obtain prices from one or more third party pricing services or brokers to value its investments. When current market prices, quotations or currency exchange rates are not readily available or reliable, investments will be fair valued in good faith by the Committee, in accordance with the policies and procedures. Factors used in determining fair value vary by investment type and may include market or investment specific events, transaction data, estimated cash flows, and market observations of comparable investments. The frequency that the fair valuation procedures are used cannot be predicted and they may be utilized to a significant extent. The Committee manages the Fund's fair valuation practices and maintains the fair valuation policies and procedures. The Fund's investment adviser reports to the Board information regarding the fair valuation process and related material matters.

The Fund categorizes the inputs to valuation techniques used to value its investments into a disclosure hierarchy consisting of three levels as shown below:

Level 1 - unadjusted quoted prices in active markets for identical investments

Level 2 - other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, etc.)

Level 3 - unobservable inputs (including the Fund's own assumptions based on the best information available)

Valuation techniques used to value the Fund's investments by major category are as follows:

Debt securities, including restricted securities, are valued based on evaluated prices received from third party pricing services or from brokers who make markets in such securities. Corporate bonds, foreign government and government agency obligations and preferred securities are valued by pricing services who utilize matrix pricing which considers yield or price of bonds of comparable quality, coupon, maturity and type or by broker-supplied prices. When independent prices are unavailable or unreliable, debt securities may be valued utilizing pricing methodologies which consider similar factors that would be used by third party pricing services. For foreign debt securities, when significant market or security specific events arise, valuations may be determined in good faith in accordance with procedures adopted by the Board. Debt securities are generally categorized as Level 2 in the hierarchy but may be Level 3 depending on the circumstances. The Fund invests a significant portion of its assets in below investment grade securities. The value of these securities can be more volatile due to changes in the credit quality of the issuer and is sensitive to changes in economic, market and regulatory conditions.

Equity securities, including restricted securities, for which market quotations are readily available, are valued at the last reported sale price or official closing price as reported by a third party pricing service on the primary market or exchange on which they are traded and are categorized as Level 1 in the hierarchy. In the event there were no sales during the day or closing prices are not available, securities are valued at the last quoted bid price or may be valued using the last available price and are generally categorized as Level 2 in the hierarchy. For foreign equity securities, when market or security specific events arise, comparisons to the valuation of American Depositary Receipts (ADRs), futures contracts, ETFs and certain indexes as well as quoted prices for similar securities may be used and would be categorized as Level 2 in the hierarchy. For equity securities, including restricted securities, where observable inputs are limited, assumptions about market activity and risk are used and these securities may be categorized as Level 3 in the hierarchy.

Futures contracts are valued at the settlement price established each day by the board of trade or exchange on which they are traded and are categorized as Level 1 in the hierarchy. Investments in open-end mutual funds, including the Fidelity Central Funds, are valued at their closing net asset value (NAV) each business day and are categorized as Level 1 in the hierarchy.

Changes in valuation techniques may result in transfers in or out of an assigned level within the disclosure hierarchy. The aggregate value of investments by input level as of December 31, 2023, is included at the end of the Fund's Schedule of Investments.

Foreign Currency. Certain Funds may use foreign currency contracts to facilitate transactions in foreign-denominated securities. Gains and losses from these transactions may arise from changes in the value of the foreign currency or if the counterparties do not perform under the contracts' terms.

Foreign-denominated assets, including investment securities, and liabilities are translated into U.S. dollars at the exchange rates at period end. Purchases and sales of investment securities, income and dividends received, and expenses denominated in foreign currencies are translated into U.S. dollars at the exchange rate in effect on the transaction date.

The effects of exchange rate fluctuations on investments are included with the net realized and unrealized gain (loss) on investment securities. Other foreign currency transactions resulting in realized and unrealized gain (loss) are disclosed separately.

Investment Transactions and Income. For financial reporting purposes, the Fund's investment holdings and NAV include trades executed through the end of the last business day of the period. The NAV per share for processing shareholder transactions is calculated as of the close of business of the New York Stock Exchange (NYSE), normally 4:00 p.m. Eastern time and includes trades executed through the end of the prior business day. Gains and losses on securities sold are determined on the basis of identified cost and include proceeds received from litigation. Commissions paid to certain brokers with whom the investment adviser, or its affiliates, places trades on behalf of a fund include an amount in addition to trade execution, which may be rebated back to a fund. Any such rebates are included in net realized gain (loss) on investments in the Statement of Operations. Dividend income is recorded on the ex-dividend date. Income and capital gain distributions from Fidelity Central Funds, if any, are recorded on the ex-dividend date. Interest income is accrued as earned and includes coupon interest and amortization of premium and accretion of discount on debt securities as applicable. Paid in Kind (PIK) income is recorded at the fair market value of the securities received. Investment income is recorded net of foreign taxes withheld where recovery of such taxes is uncertain. Debt obligations may be placed on non-accrual status and related interest income may be reduced by ceasing current accruals and writing off interest receivables when the collection of all or a portion of interest has become doubtful based on consistently applied procedures. A debt obligation is removed from non-accrual status when the issuer resumes interest payments or when collectability of interest is reasonably assured.

Class Allocations and Expenses. Investment income, realized and unrealized capital gains and losses, common expenses of a fund, and certain fund-level expense reductions, if any, are allocated daily on a pro-rata basis to each class based on the relative net assets of each class to the total net assets of a fund. Each class differs with respect to transfer agent and distribution and service plan fees incurred, as applicable. Certain expense reductions may also differ by class, if applicable. For the reporting period, the allocated portion of income and expenses to each class as a percent of its average net assets may vary due to the timing of recording these transactions in relation to fluctuating net assets of the classes. Expenses directly attributable to a fund are charged to that fund. Expenses attributable to more than one fund are allocated among the respective funds on the basis of relative net assets or other appropriate methods. Expenses included in the accompanying financial statements reflect the expenses of that fund and do not include any expenses associated with any underlying mutual funds or exchange-traded funds (ETFs). Although not included in a fund's expenses, a fund indirectly bears its proportionate share of these expenses through the net asset value of each underlying mutual fund or exchange-traded fund (ETF). Expense estimates are accrued in the period to which they relate and adjustments are made when actual amounts are known.

Income Tax Information and Distributions to Shareholders. Each year, the Fund intends to qualify as a regulated investment company under Subchapter M of the Internal Revenue Code, including distributing substantially all of its taxable income and realized gains. As a result, no provision for U.S. Federal income taxes is required. As of December 31, 2023, the Fund did not have any unrecognized tax benefits in the financial statements; nor is the Fund aware of any tax positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly change in the next twelve months. The Fund files a U.S. federal tax return, in addition to state and local tax returns as required. The Fund's federal income tax returns are subject to examination by the Internal Revenue Service (IRS) for a period of three fiscal years after they are filed. State and local tax returns may be subject to examination for an additional fiscal year depending on the jurisdiction. Foreign taxes are provided for based on the Fund's understanding of the tax rules and rates that exist in the foreign markets in which it invests.

Distributions are declared and recorded daily and paid monthly from net investment income. Distributions from realized gains, if any, are declared and recorded on the ex-dividend date. Income and capital gain distributions are declared separately for each class. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from GAAP.

Capital accounts within the financial statements are adjusted for permanent book-tax differences. These adjustments have no impact on net assets or the results of operations. Capital accounts are not adjusted for temporary book-tax differences which will reverse in a subsequent period.

Book-tax differences are primarily due to futures contracts, foreign currency transactions, market discount, capital loss carryforwards and losses deferred due to wash sales.

As of period end, the cost and unrealized appreciation (depreciation) in securities, and derivatives if applicable, for federal income tax purposes were as follows:

Gross unrealized appreciation	$149,302,713
Gross unrealized depreciation	(865,847,679)
Net unrealized appreciation (depreciation)	$(716,544,966)
Tax Cost	$4,831,206,262

The tax-based components of distributable earnings as of period end were as follows:

Capital loss carryforward	$(1,222,840,842)
Net unrealized appreciation (depreciation) on securities and other investments	$(716,520,395)

Capital loss carryforwards are only available to offset future capital gains of the Fund to the extent provided by regulations and may be limited. The capital loss carryforward information presented below, including any applicable limitation, is estimated as of fiscal period end and is subject to adjustment.

Short-term	$(260,925,071)
Long-term	(961,915,771)
Total capital loss carryforward	$(1,222,840,842)

Due to large redemptions in a prior period, approximately $502,773,178 of the Fund's realized capital losses are subject to limitation. Due to this limitation, the Fund will only be permitted to use approximately $109,332,545 of those capital losses per year to offset capital gains. Additionally, the Fund is subject to an annual limit on its use of some of its unrealized capital losses to offset capital gains in future periods. If those losses are realized and the limitation prevents the Fund from using any of those losses in a future period, those capital losses will be available to offset capital gains in subsequent periods.

The tax character of distributions paid was as follows:

	December 31, 2023	December 31, 2022
Ordinary Income	$224,863,302	$228,839,655

Restricted Securities (including Private Placements). Funds may invest in securities that are subject to legal or contractual restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are registered. Disposal of these securities may involve time-consuming negotiations and expense, and prompt sale at an acceptable price may be difficult. Information regarding restricted securities held at period end is included at the end of the Schedule of Investments, if applicable.

4. Derivative Instruments.

Risk Exposures and the Use of Derivative Instruments. The Fund's investment objectives allow for various types of derivative instruments, including futures contracts. Derivatives are investments whose value is primarily derived from underlying assets, indices or reference rates and may be transacted on an exchange or over-the-counter (OTC). Derivatives may involve a future commitment to buy or sell a specified asset based on specified terms, to exchange future cash flows at periodic intervals based on a notional principal amount, or for one party to make one or more payments upon the occurrence of specified events in exchange for periodic payments from the other party.

Derivatives were used to increase returns and to manage exposure to certain risks as defined below. The success of any strategy involving derivatives depends on analysis of numerous economic factors, and if the strategies for investment do not work as intended, the objectives may not be achieved.

Derivatives were used to increase or decrease exposure to the following risk(s):


Interest Rate Risk	Interest rate risk relates to the fluctuations in the value of interest-bearing securities due to changes in the prevailing levels of market interest rates.

Funds are also exposed to additional risks from investing in derivatives, such as liquidity risk and counterparty credit risk. Liquidity risk is the risk that a fund will be unable to close out the derivative in the open market in a timely manner. Counterparty credit risk is the risk that the counterparty will not be able to fulfill its obligation to a fund. Counterparty credit risk related to exchange-traded contracts may be mitigated by the protection provided by the exchange on which they trade.

Investing in derivatives may involve greater risks than investing in the underlying assets directly and, to varying degrees, may involve risk of loss in excess of any initial investment and collateral received and amounts recognized in the Statement of Assets and Liabilities. In addition, there may be the risk that the change in value of the derivative contract does not correspond to the change in value of the underlying instrument.

Futures Contracts. A futures contract is an agreement between two parties to buy or sell a specified underlying instrument for a fixed price at a specified future date. Futures contracts were used to manage exposure to the bond market and fluctuations in interest rates.

Upon entering into a futures contract, a fund is required to deposit either cash or securities (initial margin) with a clearing broker in an amount equal to a certain percentage of the face value of the contract. Futures contracts are marked-to-market daily and subsequent daily payments are made or received by a fund depending on the daily fluctuations in the value of the futures contracts and are recorded as unrealized appreciation or (depreciation). This receivable and/or payable, if any, is included in daily variation margin on futures contracts in the Statement of Assets and Liabilities. Realized gain or (loss) is recorded upon the expiration or closing of a futures contract. The net realized gain (loss) and change in net unrealized appreciation (depreciation) on futures contracts during the period is presented in the Statement of Operations.

Any open futures contracts at period end are presented in the Schedule of Investments under the caption "Futures Contracts". The notional amount at value reflects each contract's exposure to the underlying instrument or index at period end, and is representative of volume of activity during the period unless an average notional amount is presented. Any securities deposited to meet initial margin requirements are identified in the Schedule of Investments. Any cash deposited to meet initial margin requirements is presented as segregated cash with brokers for derivative instruments in the Statement of Assets and Liabilities.

5. Purchases and Sales of Investments.

Purchases and sales of securities, other than short-term securities and in-kind transactions, as applicable, are noted in the table below.

	Purchases ($)	Sales ($)
Fidelity New Markets Income Fund	692,587,588	1,044,794,391

6. Fees and Other Transactions with Affiliates.

Management Fee. Fidelity Management & Research Company LLC (the investment adviser) and its affiliates provide the Fund with investment management related services for which the Fund pays a monthly management fee. The management fee is the sum of an individual fund fee rate that is based on an annual rate of .55% of the Fund's average net assets and an annualized group fee rate that averaged .10% during the period. The group fee rate is based upon the monthly average net assets of a group of registered investment companies with which the investment adviser has management contracts. The group fee rate decreases as assets under management increase and increases as assets under management decrease. For the reporting period, the total annual management fee rate was .65% of the Fund's average net assets.

Distribution and Service Plan Fees. In accordance with Rule 12b-1 of the 1940 Act, the Fund has adopted separate Distribution and Service Plans for each class of shares. Certain classes pay Fidelity Distributors Company LLC (FDC), an affiliate of the investment adviser, separate Distribution and Service Fees, each of which is based on an annual percentage of each class' average net assets. In addition, FDC may pay financial intermediaries for selling shares of the Fund and providing shareholder support services. For the period, the Distribution and Service Fee rates, total fees and amounts retained by FDC were as follows:

	Distribution Fee	Service Fee	Total Fees	Retained by FDC
Class A	- %	.25%	$185,406	$1,747
Class M	- %	.25%	61,885	83
Class C	.75%	.25%	113,435	2,096
			$360,726	$3,926

Sales Load. FDC may receive a front-end sales charge of up to 4.00% for selling Class A shares and Class M shares, some of which is paid to financial intermediaries for selling shares of the Fund. Depending on the holding period, FDC may receive contingent deferred sales charges levied on Class A, Class M and Class C redemptions. The deferred sales charges are 1.00% for Class C shares, 1.00% for certain purchases of Class A shares and .25% for certain purchases of Class M shares.

For the period, sales charge amounts retained by FDC were as follows:

	Retained by FDC
Class A	$1,216
Class M	478
Class C A	69
	$1,763

A When Class C shares are initially sold, FDC pays commissions from its own resources to financial intermediaries through which the sales are made.

Transfer Agent Fees. Fidelity Investments Institutional Operations Company LLC (FIIOC), an affiliate of the investment adviser, is the transfer, dividend disbursing and shareholder servicing agent for each class of the Fund.

During November 2023, the Board approved a change in the transfer agent fees effective December 1, 2023 to a fixed annual rate of class-level average net assets as follows:

	% of Class-Level Average Net Assets
Class A	.2000
Class M	.2000
Class C	.1525
Fidelity New Markets Income Fund	.1367
Class I	.1526

Prior to December 1, 2023, FIIOC received account fees and asset-based fees that varied according to the account size and type of account of the shareholders of the respective classes of the Fund, except for Class Z. FIIOC received an asset-based fee of Class Z's average net assets. FIIOC pays for typesetting, printing and mailing of shareholder reports, except proxy statements.

For the period, transfer agent fees for each class were as follows:

	Amount	% of Class-Level Average Net Assets
Class A	$152,219	.21
Class M	51,425	.21
Class C	17,714	.16
Fidelity New Markets Income Fund	2,164,741	.14
Class I	1,090,403	.15
Class Z	838,836	.05
	$4,315,338

Accounting Fees. Fidelity Service Company, Inc. (FSC), an affiliate of the investment adviser, maintains the Fund's accounting records.

During November 2023, the Board approved a change in the accounting fees effective December 1, 2023 to a fixed annual rate of average net assets as follows:

	% of Average Net Assets
Fidelity New Markets Income Fund	.0279

Prior to December 1, 2023, the accounting fee was based on the level of average net assets for each month. For the period, the fees were equivalent to the following annual rates:

	% of Average Net Assets

Fidelity New Markets Income Fund	.03

Subsequent Event - Management Fee. Effective March 1, 2024, the Fund's management contract will be amended to incorporate administrative services previously covered under separate services agreements (Transfer Agent and Accounting agreements). The amended contract incorporates a management fee rate that may vary by class. The investment adviser or an affiliate will pay certain expenses of managing and operating the Fund out of each class's management fee.

Each class of the Fund will pay a management fee to the investment adviser. The management fee will be calculated and paid to the investment adviser every month.

When determining a class's management fee, a mandate rate will be calculated based on the monthly average net assets of a group of funds advised by FMR within a designated asset class. A discount rate will be subtracted from the mandate rate once the Fund's monthly average net assets reach a certain level. The mandate rate and discount rate may vary by class.

The annual management fee rate for a class of shares of the Fund will be the lesser of (1) the class's mandate rate reduced by the class's discount rate (if applicable) or (2) the amount set forth in the following table.

	Maximum Management Fee Rate %
Class A	.85
Class M	.85
Class C	.81
Fidelity New Markets Income Fund	.79
Class I	.81
Class Z	.70

One-twelfth of the management fee rate for a class will be applied to the average net assets of the class for the month, giving a dollar amount which is the management fee for the class for that month.

A different management fee rate may be applicable to each class of the Fund. The difference between classes is the result of separate arrangements for class-level services and/or waivers of certain expenses. It is not the result of any difference in advisory or custodial fees or other expenses related to the management of the Fund's assets, which do not vary by class.

Effective March 1, 2024, the Fund's sub-advisory agreements with FMR Investment Management (UK) Limited, Fidelity Management & Research (Hong Kong) Limited, and Fidelity Management & Research (Japan) Limited will be amended to provide that the investment adviser will pay each sub-adviser monthly fees equal to 110% of the sub-adviser's costs for providing sub-advisory services.

Effective March 1, 2024, the Fund's sub-advisory agreement with FIL Investment Advisors (FIA) will be amended to provide that the investment adviser will pay FIA monthly fees at an annual rate of 0.30% with respect to the average daily net assets of the Fund managed by FIA. FIA in turn pays FIA(UK).

Interfund Lending Program. Pursuant to an Exemptive Order issued by the Securities and Exchange Commission (the SEC), the Fund, along with other registered investment companies having management contracts with Fidelity Management & Research Company LLC (FMR), or other affiliated entities of FMR, may participate in an interfund lending program. This program provides an alternative credit facility allowing the Fund to borrow from, or lend money to, other participating affiliated funds. At period end, there were no interfund loans outstanding. Activity in this program during the period for which loans were outstanding was as follows:

	Borrower or Lender	Average Loan Balance	Weighted Average Interest Rate	Interest Expense
Fidelity New Markets Income Fund	Borrower	$6,947,111	5.32%	$9,231

Interfund Trades. Funds may purchase from or sell securities to other Fidelity Funds under procedures adopted by the Board. The procedures have been designed to ensure these interfund trades are executed in accordance with Rule 17a-7 of the 1940 Act. Any interfund trades are included within the respective purchases and sales amounts shown in the Purchases and Sales of Investments note. During the period, there were no interfund trades.

7. Committed Line of Credit.

Certain Funds participate with other funds managed by the investment adviser or an affiliate in a $4.25 billion credit facility (the "line of credit") to be utilized for temporary or emergency purposes to fund shareholder redemptions or for other short-term liquidity purposes. The participating funds have agreed to pay commitment fees on their pro-rata portion of the line of credit, which are reflected in Miscellaneous expenses on the Statement of Operations, and are listed below. During the period, there were no borrowings on this line of credit.

	Amount
Fidelity New Markets Income Fund	$7,502

8. Bank Borrowings.

The Fund is permitted to have bank borrowings for temporary or emergency purposes to fund shareholder redemptions or for other short-term liquidity requirements. The Fund has established borrowing arrangements with certain banks. The interest rate on the borrowings is the bank's base rate, as revised from time to time. Any open loans, including accrued interest, at period end are presented under the caption "Notes payable" in the Statement of Assets and Liabilities, if applicable. Activity in this program during the period for which loans were outstanding was as follows:

	Average Loan Balance	Weighted Average Interest Rate	Interest Expense
Fidelity New Markets Income Fund	$602,000	5.58%	$187

9. Expense Reductions.

Through arrangements with the Fund's custodian, credits realized as a result of certain uninvested cash balances were used to reduce the Fund's expenses. During the period, custodian credits reduced the Fund's expenses by $14,529. During the period, transfer agent credits reduced each class' expenses as noted in the table below.

	Expense reduction

Class M	$778

In addition, during the period the investment adviser or an affiliate reimbursed and/or waived a portion of fund-level operating expenses in the amount of $132,016.

10. Distributions to Shareholders.

Distributions to shareholders of each class were as follows:

	Year ended December 31, 2023	Year ended December 31, 2022
Fidelity New Markets Income Fund
Distributions to shareholders
Class A	$3,845,147	$4,248,201
Class M	1,283,578	1,339,887
Class C	504,158	618,004
Fidelity New Markets Income Fund	86,500,335	88,479,584
Class I	39,010,669	41,747,477
Class Z	93,719,415	92,406,502
Total	$224,863,302	$228,839,655

11. Share Transactions.

Share transactions for each class were as follows and may contain in-kind transactions, automatic conversions between classes or exchanges between affiliated funds:

	Shares	Shares	Dollars	Dollars
	Year ended December 31, 2023	Year ended December 31, 2022	Year ended December 31, 2023	Year ended December 31, 2022
Fidelity New Markets Income Fund
Class A
Shares sold	435,966	591,073	$5,092,144	$7,300,290
Reinvestment of distributions	319,325	345,079	3,728,487	4,099,396
Shares redeemed	(1,446,001)	(2,481,382)	(16,742,584)	(29,869,528)
Net increase (decrease)	(690,710)	(1,545,230)	$(7,921,953)	$(18,469,842)
Class M
Shares sold	114,755	115,764	$1,330,318	$1,419,990
Reinvestment of distributions	107,712	107,226	1,258,124	1,273,571
Shares redeemed	(404,603)	(696,377)	(4,690,890)	(8,560,601)
Net increase (decrease)	(182,136)	(473,387)	$(2,102,448)	$(5,867,040)
Class C
Shares sold	28,421	29,717	$335,668	$352,288
Reinvestment of distributions	42,826	51,370	499,689	611,425
Shares redeemed	(390,310)	(574,893)	(4,540,499)	(6,993,345)
Net increase (decrease)	(319,063)	(493,806)	$(3,705,142)	$(6,029,632)
Fidelity New Markets Income Fund
Shares sold	9,890,925	10,866,723	$115,616,068	$130,733,436
Reinvestment of distributions	6,427,985	6,458,932	75,058,446	76,787,954
Shares redeemed	(24,817,467)	(39,674,593)	(288,735,100)	(480,538,182)
Net increase (decrease)	(8,498,557)	(22,348,938)	$(98,060,586)	$(273,016,792)
Class I
Shares sold	9,043,453	11,069,631	$105,261,763	$133,449,712
Reinvestment of distributions	3,275,909	3,415,651	38,259,483	40,686,129
Shares redeemed	(19,332,273)	(28,254,755)	(224,033,911)	(347,139,307)
Net increase (decrease)	(7,012,911)	(13,769,473)	$(80,512,665)	$(173,003,466)
Class Z
Shares sold	8,628,076	45,004,654	$99,948,653	$560,436,966
Reinvestment of distributions	6,752,380	6,100,146	78,827,686	72,079,274
Shares redeemed	(28,143,908)	(51,477,102)	(325,316,297)	(625,972,178)
Net increase (decrease)	(12,763,452)	(372,302)	$(146,539,958)	$6,544,062

12. Other.

A fund's organizational documents provide former and current trustees and officers with a limited indemnification against liabilities arising in connection with the performance of their duties to the fund. In the normal course of business, a fund may also enter into contracts that provide general indemnifications. A fund's maximum exposure under these arrangements is unknown as this would be dependent on future claims that may be made against a fund. The risk of material loss from such claims is considered remote.

At the end of the period, the following mutual funds managed by the investment adviser or its affiliates were the owners of record of 10% or more of the total outstanding shares.

	Strategic Advisers Fidelity Core Income Fund
Fidelity New Markets Income Fund	28%

Mutual funds managed by the investment adviser or its affiliates, in aggregate, were the owners of record of more than 20% of the total outstanding shares.

Fund	% of shares held
Fidelity New Markets Income Fund	28%

13. Credit Risk.

The Fund's relatively large investment in countries with limited or developing capital markets may involve greater risks than investments in more developed markets and the prices of such investments may be volatile. The yields of emerging market debt obligations reflect, among other things, perceived credit risk. The consequences of political, social or economic changes in these markets may have disruptive effects on the market prices of the Fund's investments and the income they generate, as well as the Fund's ability to repatriate such amounts.

14. Risk and Uncertainties.

Many factors affect a fund's performance. Developments that disrupt global economies and financial markets, such as pandemics, epidemics, outbreaks of infectious diseases, war, terrorism, and environmental disasters, may significantly affect a fund's investment performance. The effects of these developments to a fund will be impacted by the types of securities in which a fund invests, the financial condition, industry, economic sector, and geographic location of an issuer, and a fund's level of investment in the securities of that issuer. Significant concentrations in security types, issuers, industries, sectors, and geographic locations may magnify the factors that affect a fund's performance.

Report of Independent Registered Public Accounting Firm

To the Board of Trustees of Fidelity Summer Street Trust and Shareholders of Fidelity New Markets Income Fund

Opinion on the Financial Statements

We have audited the accompanying statement of assets and liabilities, including the schedule of investments, of Fidelity New Markets Income Fund (one of the funds constituting Fidelity Summer Street Trust, referred to hereafter as the "Fund") as of December 31, 2023, the related statement of operations for the year ended December 31, 2023, the statement of changes in net assets for each of the two years in the period ended December 31, 2023, including the related notes, and the financial highlights for each of the five years in the period ended December 31, 2023 (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Fund as of December 31, 2023, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period ended December 31, 2023 and the financial highlights for each of the five years in the period ended December 31, 2023 in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Fund's management. Our responsibility is to express an opinion on the Fund's financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Fund in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits of these financial statements in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our procedures included confirmation of securities owned as of December 31, 2023 by correspondence with the custodian and brokers. We believe that our audits provide a reasonable basis for our opinion.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

February 9, 2024

We have served as the auditor of one or more investment companies in the Fidelity group of funds since 1932.

Trustees and Officers

TRUSTEES AND OFFICERS

The Trustees, Members of the Advisory Board (if any), and officers of the trust and fund, as applicable, are listed below. The Board of Trustees governs the fund and is responsible for protecting the interests of shareholders. The Trustees are experienced executives who meet periodically throughout the year to oversee the fund's activities, review contractual arrangements with companies that provide services to the fund, oversee management of the risks associated with such activities and contractual arrangements, and review the fund's performance. Except for Vijay Advani, each of the Trustees oversees 322 funds. Mr. Advani oversees 215 funds.

The Trustees hold office without limit in time except that (a) any Trustee may resign; (b) any Trustee may be removed by written instrument, signed by at least two-thirds of the number of Trustees prior to such removal; (c) any Trustee who requests to be retired or who has become incapacitated by illness or injury may be retired by written instrument signed by a majority of the other Trustees; and (d) any Trustee may be removed at any special meeting of shareholders by a two-thirds vote of the outstanding voting securities of the trust. Each Trustee who is not an interested person (as defined in the 1940 Act) of the trust and the fund is referred to herein as an Independent Trustee. Each Independent Trustee shall retire not later than the last day of the calendar year in which his or her 75th birthday occurs. The Independent Trustees may waive this mandatory retirement age policy with respect to individual Trustees. Officers and Advisory Board Members hold office without limit in time, except that any officer or Advisory Board Member may resign or may be removed by a vote of a majority of the Trustees at any regular meeting or any special meeting of the Trustees. Except as indicated, each individual has held the office shown or other offices in the same company for the past five years.

The fund's Statement of Additional Information (SAI) includes more information about the Trustees. To request a free copy, call Fidelity at 1-800-544-8544 if you're an individual investing directly with Fidelity, call 1-800-835-5092 if you're a plan sponsor or participant with Fidelity as your recordkeeper or call 1-877-208-0098 on institutional accounts or if you're an advisor or invest through one.

Experience, Skills, Attributes, and Qualifications of the Trustees. The Governance and Nominating Committee has adopted a statement of policy that describes the experience, qualifications, attributes, and skills that are necessary and desirable for potential Independent Trustee candidates (Statement of Policy). The Board believes that each Trustee satisfied at the time he or she was initially elected or appointed a Trustee, and continues to satisfy, the standards contemplated by the Statement of Policy. The Governance and Nominating Committee also engages professional search firms to help identify potential Independent Trustee candidates who have the experience, qualifications, attributes, and skills consistent with the Statement of Policy. From time to time, additional criteria based on the composition and skills of the current Independent Trustees, as well as experience or skills that may be appropriate in light of future changes to board composition, business conditions, and regulatory or other developments, have also been considered by the professional search firms and the Governance and Nominating Committee. In addition, the Board takes into account the Trustees' commitment and participation in Board and committee meetings, as well as their leadership of standing and ad hoc committees throughout their tenure.

In determining that a particular Trustee was and continues to be qualified to serve as a Trustee, the Board has considered a variety of criteria, none of which, in isolation, was controlling. The Board believes that, collectively, the Trustees have balanced and diverse experience, qualifications, attributes, and skills, which allow the Board to operate effectively in governing the fund and protecting the interests of shareholders. Information about the specific experience, skills, attributes, and qualifications of each Trustee, which in each case led to the Board's conclusion that the Trustee should serve (or continue to serve) as a trustee of the fund, is provided below.

Board Structure and Oversight Function. Robert A. Lawrence is an interested person and currently serves as Chair. The Trustees have determined that an interested Chair is appropriate and benefits shareholders because an interested Chair has a personal and professional stake in the quality and continuity of services provided to the fund. Independent Trustees exercise their informed business judgment to appoint an individual of their choosing to serve as Chair, regardless of whether the Trustee happens to be independent or a member of management. The Independent Trustees have determined that they can act independently and effectively without having an Independent Trustee serve as Chair and that a key structural component for assuring that they are in a position to do so is for the Independent Trustees to constitute a substantial majority for the Board. The Independent Trustees also regularly meet in executive session. David M. Thomas serves as Lead Independent Trustee and as such (i) acts as a liaison between the Independent Trustees and management with respect to matters important to the Independent Trustees and (ii) with management prepares agendas for Board meetings.

Fidelity® funds are overseen by different Boards of Trustees. The fund's Board oversees Fidelity's high income and certain equity funds, and other Boards oversee Fidelity's alternative investment, investment-grade bond, money market, asset allocation, and other equity funds. The asset allocation funds may invest in Fidelity® funds overseen by the fund's Board. The use of separate Boards, each with its own committee structure, allows the Trustees of each group of Fidelity® funds to focus on the unique issues of the funds they oversee, including common research, investment, and operational issues. On occasion, the separate Boards establish joint committees to address issues of overlapping consequences for the Fidelity® funds overseen by each Board.

The Trustees operate using a system of committees to facilitate the timely and efficient consideration of all matters of importance to the Trustees, the fund, and fund shareholders and to facilitate compliance with legal and regulatory requirements and oversight of the fund's activities and associated risks. The Board, acting through its committees, has charged FMR and its affiliates with (i) identifying events or circumstances the occurrence of which could have demonstrably adverse effects on the fund's business and/or reputation; (ii) implementing processes and controls to lessen the possibility that such events or circumstances occur or to mitigate the effects of such events or circumstances if they do occur; and (iii) creating and maintaining a system designed to evaluate continuously business and market conditions in order to facilitate the identification and implementation processes described in (i) and (ii) above. Because the day-to-day operations and activities of the fund are carried out by or through FMR, its affiliates, and other service providers, the fund's exposure to risks is mitigated but not eliminated by the processes overseen by the Trustees. While each of the Board's committees has responsibility for overseeing different aspects of the fund's activities, oversight is exercised primarily through the Operations, Audit, and Compliance Committees. Appropriate personnel, including but not limited to the fund's Chief Compliance Officer (CCO), FMR's internal auditor, the independent accountants, the fund's Treasurer and portfolio management personnel, make periodic reports to the Board's committees, as appropriate, including an annual review of Fidelity's risk management program for the Fidelity® funds. The responsibilities of each standing committee, including their oversight responsibilities, are described further under "Standing Committees of the Trustees."

Interested Trustees*:

Correspondence intended for a Trustee who is an interested person may be sent to Fidelity Investments, 245 Summer Street, Boston, Massachusetts 02210.

Name, Year of Birth; Principal Occupations and Other Relevant Experience+

Bettina Doulton (1964)

Year of Election or Appointment: 2020

Trustee

Ms. Doulton also serves as Trustee of other Fidelity® funds. Prior to her retirement, Ms. Doulton served in a variety of positions at Fidelity Investments, including as a managing director of research (2006-2007), portfolio manager to certain Fidelity® funds (1993-2005), equity analyst and portfolio assistant (1990-1993), and research assistant (1987-1990). Ms. Doulton currently owns and operates Phi Builders + Architects and Cellardoor Winery. Previously, Ms. Doulton served as a member of the Board of Brown Capital Management, LLC (2014-2018).

Robert A. Lawrence (1952)

Year of Election or Appointment: 2020

Trustee

Chair of the Board of Trustees

Mr. Lawrence also serves as Trustee of other funds. Previously, Mr. Lawrence served as a Trustee and Member of the Advisory Board of certain funds. Prior to his retirement in 2008, Mr. Lawrence served as Vice President of certain Fidelity® funds (2006-2008), Senior Vice President, Head of High Income Division of Fidelity Management & Research Company (investment adviser firm, 2006-2008), and President of Fidelity Strategic Investments (investment adviser firm, 2002-2005).

* Determined to be an "Interested Trustee" by virtue of, among other things, his or her affiliation with the trust or various entities under common control with FMR.

+ The information includes the Trustee's principal occupation during the last five years and other information relating to the experience, attributes, and skills relevant to the Trustee's qualifications to serve as a Trustee, which led to the conclusion that the Trustee should serve as a Trustee for the fund.

Independent Trustees:

Correspondence intended for an Independent Trustee may be sent to Fidelity Investments, P.O. Box 55235, Boston, Massachusetts 02205-5235.

Name, Year of Birth; Principal Occupations and Other Relevant Experience+

Vijay C. Advani (1960)

Year of Election or Appointment: 2023

Trustee

Mr. Advani also serves as Trustee or Member of the Advisory Board of other funds. Previously, Mr. Advani served as Executive Chairman (2020-2022), Chief Executive Officer (2017-2020) and Chief Operating Officer (2016-2017) of Nuveen (global investment manager). He also served in various capacities at Franklin Resources (global investment manager), including Co-President (2015-2016), Executive Vice President, Global Advisory Services (2008-2015), Head of Global Retail Distribution (2005-2008), Executive Managing Director, International Retail Development (2002-2005), Managing Director, Product Developments, Sales & Marketing, Asia, Eastern Europe and Africa (2000-2002) and President, Templeton Asset Management India (1995-2000). Mr. Advani also served as Senior Investment Officer of International Finance Corporation (private equity and venture capital arm of The World Bank, 1984-1995). Mr. Advani is Chairman Emeritus of the U.S. India Business Council (2018-present), a Director of The Global Impact Investing Network (2019-present), a Director of LOK Capital (Mauritius) (2022-present), a member of the Advisory Council of LOK Capital (2022-present), a Senior Advisor of Neuberger Berman (2021-present), a Senior Advisor of Seviora Holdings Pte. Ltd (Temasek-Singapore) (2021-present), a Director of Seviora Capital (Singapore) (2021-present) and an Advisor of EQUIAM (2021-present). Mr. Advani formerly served as a member of the Board of BowX Acquisition Corp. (special purpose acquisition company, 2020-2021), a member of the Board of Intellecap (advisory arm of The Aavishkaar Group, 2018-2020), a member of the Board of Nuveen Investments, Inc. (2017-2020) and a member of the Board of Docusign (software, 2016-2019).

Thomas P. Bostick (1956)

Year of Election or Appointment: 2021

Trustee

Lieutenant General Bostick also serves as Trustee of other Fidelity® funds. Prior to his retirement, General Bostick (United States Army, Retired) held a variety of positions within the U.S. Army, including Commanding General and Chief of Engineers, U.S. Army Corps of Engineers (2012-2016) and Deputy Chief of Staff and Director of Human Resources, U.S. Army (2009-2012). General Bostick currently serves as a member of the Board and Finance and Governance & Sustainability Committees of CSX Corporation (transportation, 2020-present) and a member of the Board and Corporate Governance and Nominating Committee of Perma-Fix Environmental Services, Inc. (nuclear waste management, 2020-present). General Bostick serves as Chief Executive Officer of Bostick Global Strategies, LLC (consulting, 2016-present), as a member of the Board of HireVue, Inc. (video interview and assessment, 2020-present), as a member of the Board of Allonnia (biotechnology and engineering solutions, 2022-present) and on the Advisory Board of Solugen, Inc. (specialty bio-based chemicals manufacturer, 2022-present). Previously, General Bostick served as a Member of the Advisory Board of certain Fidelity® funds (2021), President, Intrexon Bioengineering (2018-2020) and Chief Operating Officer (2017-2020) and Senior Vice President of the Environment Sector (2016-2017) of Intrexon Corporation (biopharmaceutical company).

Donald F. Donahue (1950)

Year of Election or Appointment: 2018

Trustee

Mr. Donahue also serves as Trustee of other Fidelity® funds. Mr. Donahue serves as President and Chief Executive Officer of Miranda Partners, LLC (risk consulting for the financial services industry, 2012-present). Previously, Mr. Donahue served as Chief Executive Officer (2006-2012), Chief Operating Officer (2003-2006) and Managing Director, Customer Marketing and Development (1999-2003) of The Depository Trust & Clearing Corporation (financial markets infrastructure). Mr. Donahue currently serves as a member (2007-present) and Co-Chairman (2016-present) of the Board of United Way of New York. Mr. Donahue previously served as a member of the Advisory Board of certain Fidelity® funds (2015-2018) and as a member of the Board of The Leadership Academy (previously NYC Leadership Academy) (2012-2022).

Vicki L. Fuller (1957)

Year of Election or Appointment: 2020

Trustee

Ms. Fuller also serves as Trustee of other Fidelity® funds. Previously, Ms. Fuller served as a member of the Advisory Board of certain Fidelity® funds (2018-2020), Chief Investment Officer of the New York State Common Retirement Fund (2012-2018) and held a variety of positions at AllianceBernstein L.P. (global asset management, 1985-2012), including Managing Director (2006-2012) and Senior Vice President and Senior Portfolio Manager (2001-2006). Ms. Fuller currently serves as a member of the Board, Audit Committee and Nominating and Governance Committee of two Blackstone business development companies (2020-present), as a member of the Board of Treliant, LLC (consulting, 2019-present), as a member of the Board of Ariel Alternatives, LLC (private equity, 2022-present) and as a member of the Board and Chair of the Audit Committee of Gusto, Inc. (software, 2021-present). In addition, Ms. Fuller currently serves as a member of the Board of Roosevelt University (2019-present) and as a member of the Executive Board of New York University's Stern School of Business. Ms. Fuller previously served as a member of the Board, Audit Committee and Nominating and Governance Committee of The Williams Companies, Inc. (natural gas infrastructure, 2018-2021).

Patricia L. Kampling (1959)

Year of Election or Appointment: 2020

Trustee

Ms. Kampling also serves as Trustee of other Fidelity® funds. Prior to her retirement, Ms. Kampling served as Chairman of the Board and Chief Executive Officer (2012-2019), President and Chief Operating Officer (2011-2012) and Executive Vice President and Chief Financial Officer (2010-2011) of Alliant Energy Corporation. Ms. Kampling currently serves as a member of the Board, Finance Committee and Governance, Compensation and Nominating Committee of Xcel Energy Inc. (utilities company, 2020-present) and as a member of the Board, Audit, Finance and Risk Committee and Safety, Environmental, Technology and Operations Committee and Chair of the Executive Development and Compensation Committee of American Water Works Company, Inc. (utilities company, 2019-present). In addition, Ms. Kampling currently serves as a member of the Board of the Nature Conservancy, Wisconsin Chapter (2019-present). Previously, Ms. Kampling served as a Member of the Advisory Board of certain Fidelity® funds (2020), a member of the Board, Compensation Committee and Executive Committee and Chair of the Audit Committee of Briggs & Stratton Corporation (manufacturing, 2011-2021), a member of the Board of Interstate Power and Light Company (2012-2019) and Wisconsin Power and Light Company (2012-2019) (each a subsidiary of Alliant Energy Corporation) and as a member of the Board and Workforce Development Committee of the Business Roundtable (2018-2019).

Thomas A. Kennedy (1955)

Year of Election or Appointment: 2021

Trustee

Mr. Kennedy also serves as Trustee of other Fidelity® funds. Previously, Mr. Kennedy served as a Member of the Advisory Board of certain Fidelity® funds (2020) and held a variety of positions at Raytheon Company (aerospace and defense, 1983-2020), including Chairman and Chief Executive Officer (2014-2020) and Executive Vice President and Chief Operating Officer (2013-2014). Mr. Kennedy served as Executive Chairman of the Board of Directors of Raytheon Technologies Corporation (aerospace and defense, 2020-2021). Mr. Kennedy serves as a Director of the Board of Directors of Textron Inc. (aerospace and defense, 2023-present).

Oscar Munoz (1959)

Year of Election or Appointment: 2021

Trustee

Mr. Munoz also serves as Trustee of other Fidelity® funds. Prior to his retirement, Mr. Munoz served as Executive Chairman (2020-2021), Chief Executive Officer (2015-2020), President (2015-2016) and a member of the Board (2010-2021) of United Airlines Holdings, Inc. Mr. Munoz currently serves as a member of the Board of CBRE Group, Inc. (commercial real estate, 2020-present), a member of the Board of Univision Communications, Inc. (Hispanic media, 2020-present), a member of the Board of Archer Aviation Inc. (2021-present), a member of the Defense Business Board of the United States Department of Defense (2021-present) and a member of the Board of Salesforce.com, Inc. (cloud-based software, 2022-present). Previously, Mr. Munoz served as a Member of the Advisory Board of certain Fidelity® funds (2021).

David M. Thomas (1949)

Year of Election or Appointment: 2008

Trustee

Lead Independent Trustee

Mr. Thomas also serves as Trustee of other Fidelity® funds. Previously, Mr. Thomas served as Executive Chairman (2005-2006) and Chairman and Chief Executive Officer (2000-2005) of IMS Health, Inc. (pharmaceutical and healthcare information solutions). Mr. Thomas currently serves as a member of the Board of Fortune Brands Home and Security (home and security products, 2004-present) and as Director (2013-present) and Non-Executive Chairman of the Board (2022-present) of Interpublic Group of Companies, Inc. (marketing communication).

Susan Tomasky (1953)

Year of Election or Appointment: 2020

Trustee

Ms. Tomasky also serves as Trustee of other Fidelity® funds. Prior to her retirement, Ms. Tomasky served in various executive officer positions at American Electric Power Company, Inc. (1998-2011), including most recently as President of AEP Transmission (2007-2011). Ms. Tomasky currently serves as a member of the Board and Sustainability Committee and as Chair of the Audit Committee of Marathon Petroleum Corporation (2018-present) and as a member of the Board, Executive Committee, Corporate Governance Committee and Organization and Compensation Committee and as Lead Director of the Board of Public Service Enterprise Group, Inc. (utilities company, 2012-present) and as a member of the Board of its subsidiary company, Public Service Electric and Gas Co. (2021-present). In addition, Ms. Tomasky currently serves as a member (2009-present) and President (2020-present) of the Board of the Royal Shakespeare Company - America (2009-present), as a member of the Board of the Columbus Association for the Performing Arts (2011-present) and as a member of the Board and Kenyon in the World Committee of Kenyon College (2016-present). Previously, Ms. Tomasky served as a Member of the Advisory Board of certain Fidelity® funds (2020), as a member of the Board of the Columbus Regional Airport Authority (2007-2020), as a member of the Board (2011-2018) and Lead Independent Director (2015-2018) of Andeavor Corporation (previously Tesoro Corporation) (independent oil refiner and marketer) and as a member of the Board of Summit Midstream Partners LP (energy, 2012-2018).

Michael E. Wiley (1950)

Year of Election or Appointment: 2018

Trustee

Mr. Wiley also serves as Trustee of other Fidelity® funds. Previously, Mr. Wiley served as a member of the Advisory Board of certain Fidelity® funds (2018-2020), Chairman, President and CEO of Baker Hughes, Inc. (oilfield services, 2000-2004). Mr. Wiley also previously served as a member of the Board of Andeavor Corporation (independent oil refiner and marketer, 2005-2018), a member of the Board of Andeavor Logistics LP (natural resources logistics, 2015-2018) and a member of the Board of High Point Resources (exploration and production, 2005-2020).

Advisory Board Members and Officers:

Correspondence intended for a Member of the Advisory Board (if any) may be sent to Fidelity Investments, P.O. Box 55235, Boston, Massachusetts 02205-5235. Correspondence intended for an officer or Peter S. Lynch may be sent to Fidelity Investments, 245 Summer Street, Boston, Massachusetts 02210.

Name, Year of Birth; Principal Occupation

Peter S. Lynch (1944)

Year of Election or Appointment: 2003

Member of the Advisory Board

Mr. Lynch also serves as a Member of the Advisory Board of other Fidelity® funds. Mr. Lynch is Vice Chairman and a Director of Fidelity Management & Research Company LLC (investment adviser firm). In addition, Mr. Lynch serves as a Trustee of Boston College and as the Chairman of the Inner-City Scholarship Fund. Previously, Mr. Lynch served as Vice Chairman and a Director of FMR Co., Inc. (investment adviser firm) and on the Special Olympics International Board of Directors (1997-2006).

Karen B. Peetz (1955)

Year of Election or Appointment: 2023

Member of the Advisory Board

Ms. Peetz also serves as a Member of the Advisory Board of other funds. Previously, Ms. Peetz served as Chief Administration Officer (2020-2023) of Citigroup Inc. (a diversified financial service company). She also served in various capacities at Bank of New York Mellon Corporation, including President (2013-2016), Vice Chairman, Senior Executive Vice President and Chief Executive Officer of Financial Markets & Treasury Services (2010-2013), Senior Executive Vice President and Chief Executive Officer of Global Corporate Trust (2003-2008), Senior Vice President and Division Manager of Global Payments & Trade Services (2002-2003) and Senior Vice President and Division Manager of Domestic Corporate Trust (1998-2002). Ms. Peetz also served in various capacities at Chase Manhattan Corporation (1982-1998), including Senior Vice President and Manager of Corporate Trust International Business (1996-1998), Managing Director and Manager of Corporate Trust Services (1994-1996) and Managing Director and Group Manager of Financial Institution Sales (1990-1993). Ms. Peetz currently serves as Chair of Amherst Holdings Advisory Council (2018-present), Trustee of Johns Hopkins University (2016-present), Chair of the Carey Business School Advisory Council, Member of the Johns Hopkins Medicine Board and Finance Committee and Chair of the Lyme and Tick Related Disease Institute Advisory Council. Ms. Peetz previously served as a member of the Board of Guardian Life Insurance Company of America (2019-2023), a member of the Board of Trane Technologies (2018-2022), a member of the Board of Wells Fargo Corp. (2017-2019), a member of the Board of SunCoke Energy Inc. (2012-2016), a member of the Board of Private Export Funding Corporation (2010-2016) and as a Trustee of Penn State University (2010-2014) and the United Way of New York City (2008-2010).

Heather Bonner (1977)

Year of Election or Appointment: 2023

Assistant Treasurer

Ms. Bonner also serves as an officer of other funds. Ms. Bonner is a Senior Vice President (2022-present) and is an employee of Fidelity Investments (2022-present). Ms. Bonner serves as Vice President, Treasurer, or Assistant Treasurer of certain Fidelity entities. Prior to joining Fidelity, Ms. Bonner served as Managing Director at AQR Capital Management (2013-2022) and was the Treasurer and Principal Financial Officer of the AQR Funds (2013-2022).

Craig S. Brown (1977)

Year of Election or Appointment: 2022

Deputy Treasurer

Mr. Brown also serves as an officer of other funds. Mr. Brown is a Vice President (2015-present) and is an employee of Fidelity Investments. Mr. Brown serves as Assistant Treasurer of FIMM, LLC (2021-present). Previously, Mr. Brown served as Assistant Treasurer of certain Fidelity® funds (2019-2022).

John J. Burke III (1964)

Year of Election or Appointment: 2018

Chief Financial Officer

Mr. Burke also serves as Chief Financial Officer of other funds. Mr. Burke is Head of Fidelity Fund and Investment Operations (2018-present) and is an employee of Fidelity Investments. Mr. Burke serves as President, Executive Vice President, or Director of certain Fidelity entities. Previously Mr. Burke served as head of Asset Management Investment Operations (2012-2018).

Margaret Carey (1973)

Year of Election or Appointment: 2023

Secretary and Chief Legal Officer (CLO)

Ms. Carey also serves as an officer of other funds and as CLO of certain Fidelity entities. Ms. Carey is a Senior Vice President, Deputy General Counsel (2019-present) and is an employee of Fidelity Investments.

William C. Coffey (1969)

Year of Election or Appointment: 2019

Assistant Secretary

Mr. Coffey also serves as Assistant Secretary of other funds. Mr. Coffey is a Senior Vice President, Deputy General Counsel (2010-present) and is an employee of Fidelity Investments. Previously, Mr. Coffey served as Secretary and CLO of certain funds (2018-2019); CLO, Secretary, or Senior Vice President of certain Fidelity entities and Assistant Secretary of certain funds (2009-2018).

Timothy M. Cohen (1969)

Year of Election or Appointment: 2018

Vice President

Mr. Cohen also serves as Vice President of other funds. Mr. Cohen is Co-Head of Equity (2018-present) and is an employee of Fidelity Investments. Mr. Cohen serves as Director of Fidelity Management & Research (Japan) Limited (investment adviser firm, 2016-present). Previously, Mr. Cohen served as Executive Vice President of Fidelity SelectCo, LLC (2019) and Head of Global Equity Research (2016-2018).

Jonathan Davis (1968)

Year of Election or Appointment: 2010

Assistant Treasurer

Mr. Davis also serves as an officer of other funds. Mr. Davis is a Vice President (2006-present) and is an employee of Fidelity Investments. Mr. Davis serves as Assistant Treasurer of certain Fidelity entities.

Laura M. Del Prato (1964)

Year of Election or Appointment: 2018

Assistant Treasurer

Ms. Del Prato also serves as an officer of other funds. Ms. Del Prato is a Senior Vice President (2017-present) and is an employee of Fidelity Investments. Ms. Del Prato serves as Vice President or Assistant Treasurer of certain Fidelity entities. Previously, Ms. Del Prato served as President and Treasurer of The North Carolina Capital Management Trust: Cash Portfolio and Term Portfolio (2018-2020).

Colm A. Hogan (1973)

Year of Election or Appointment: 2020

Assistant Treasurer

Mr. Hogan also serves as an officer of other funds. Mr. Hogan is a Vice President (2016-present) and is an employee of Fidelity Investments. Mr. Hogan serves as Assistant Treasurer of certain Fidelity entities. Previously, Mr. Hogan served as Deputy Treasurer of certain Fidelity® funds (2016-2020) and Assistant Treasurer of certain Fidelity® funds (2016-2018).

Pamela R. Holding (1964)

Year of Election or Appointment: 2018

Vice President

Ms. Holding also serves as Vice President of other funds. Ms. Holding is Co-Head of Equity (2018-present) and is an employee of Fidelity Investments. Previously, Ms. Holding served as Executive Vice President of Fidelity SelectCo, LLC (2019) and as Chief Investment Officer of Fidelity Institutional Asset Management (2013-2018).

Chris Maher (1972)

Year of Election or Appointment: 2020

Deputy Treasurer

Mr. Maher also serves as an officer of other funds. Mr. Maher is a Vice President (2008-present) and is an employee of Fidelity Investments. Mr. Maher serves as Assistant Treasurer of certain Fidelity entities. Previously, Mr. Maher served as Assistant Treasurer of certain funds (2013-2020).

Jason P. Pogorelec (1975)

Year of Election or Appointment: 2020

Chief Compliance Officer

Mr. Pogorelec also serves as Chief Compliance Officer of other funds. Mr. Pogorelec is a Senior Vice President of Asset Management Compliance (2020-present) and is an employee of Fidelity Investments. Mr. Pogorelec serves as Compliance Officer of Fidelity Management & Research Company LLC (investment adviser firm, 2023-present) and Ballyrock Investment Advisors LLC (2023-present). Previously, Mr. Pogorelec served as a Vice President, Associate General Counsel for Fidelity Investments (2010-2020) and Assistant Secretary of certain Fidelity® funds (2015-2020).

Brett Segaloff (1972)

Year of Election or Appointment: 2021

Anti-Money Laundering (AML) Officer

Mr. Segaloff also serves as AML Officer of other funds. Mr. Segaloff is a Vice President (2022-present) and is an employee of Fidelity Investments. Mr. Segaloff serves as Anti Money Laundering Compliance Officer or Anti Money Laundering/Bank Secrecy Act Compliance Officer of certain Fidelity entities.

Stacie M. Smith (1974)

Year of Election or Appointment: 2016

President and Treasurer

Ms. Smith also serves as an officer of other funds. Ms. Smith is a Senior Vice President (2016-present) and is an employee of Fidelity Investments. Ms. Smith serves as Assistant Treasurer of certain Fidelity entities and has served in other fund officer roles.

Jim Wegmann (1979)

Year of Election or Appointment: 2019

Assistant Treasurer

Mr. Wegmann also serves as an officer of other funds. Mr. Wegmann is a Vice President (2016-present) and is an employee of Fidelity Investments. Mr. Wegmann serves as Assistant Treasurer of FIMM, LLC (2021-present). Previously, Mr. Wegmann served as Assistant Treasurer of certain Fidelity® funds (2019-2021).

Shareholder Expense Example

As a shareholder, you incur two types of costs: (1) transaction costs, which may include sales charges (loads) on purchase payments or redemption proceeds, as applicable and (2) ongoing costs, which generally include management fees, distribution and/or service (12b-1) fees and other Fund expenses. This Example is intended to help you understand your ongoing costs (in dollars) of investing in a fund and to compare these costs with the ongoing costs of investing in other mutual funds.

The Example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period (July 1, 2023 to December 31, 2023).

Actual Expenses

The first line of the accompanying table provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000.00 (for example, an $8,600 account value divided by $1,000.00 = 8.6), then multiply the result by the number in the first line for a class/Fund under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. If any fund is a shareholder of any underlying mutual funds or exchange-traded funds (ETFs) (the Underlying Funds), such fund indirectly bears its proportional share of the expenses of the Underlying Funds in addition to the direct expenses incurred presented in the table. These fees and expenses are not included in the annualized expense ratio used to calculate the expense estimate in the table below.

Hypothetical Example for Comparison Purposes

The second line of the accompanying table provides information about hypothetical account values and hypothetical expenses based on the actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. If any fund is a shareholder of any Underlying Funds, such fund indirectly bears its proportional share of the expenses of the Underlying Funds in addition to the direct expenses as presented in the table. These fees and expenses are not included in the annualized expense ratio used to calculate the expense estimate in the table below.

Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transaction costs. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher.

	Annualized Expense Ratio- A	Beginning Account Value July 1, 2023	Ending Account Value December 31, 2023	Expenses Paid During Period- C July 1, 2023 to December 31, 2023
Fidelity® New Markets Income Fund
Class A **	1.16%
Actual		$ 1,000	$ 1,098.90	$ 6.14
Hypothetical-B		$ 1,000	$ 1,019.36	$ 5.90
Class M **	1.16%
Actual		$ 1,000	$ 1,098.90	$ 6.14
Hypothetical-B		$ 1,000	$ 1,019.36	$ 5.90
Class C	1.85%
Actual		$ 1,000	$ 1,095.10	$ 9.77
Hypothetical-B		$ 1,000	$ 1,015.88	$ 9.40
Fidelity® New Markets Income Fund **	.84%
Actual		$ 1,000	$ 1,100.60	$ 4.45
Hypothetical-B		$ 1,000	$ 1,020.97	$ 4.28
Class I	.86%
Actual		$ 1,000	$ 1,100.60	$ 4.55
Hypothetical-B		$ 1,000	$ 1,020.87	$ 4.38
Class Z	.76%
Actual		$ 1,000	$ 1,101.10	$ 4.02
Hypothetical-B		$ 1,000	$ 1,021.37	$ 3.87

A Annualized expense ratio reflects expenses net of applicable fee waivers.

B 5% return per year before expenses

C Expenses are equal to the annualized expense ratio, multiplied by the average account value over the period, multiplied by 184/ 365 (to reflect the one-half year period). The fees and expenses of any Underlying Funds are not included in each annualized expense ratio.

** If fees and changes to the expense contract and/or expense cap, effective March 1, 2024, had been in effect during the current period, the restated annualized expense ratio and the expenses paid in the actual and hypothetical examples above would have been as shown in table below:

	Annualized Expense Ratio- A	Expenses Paid
Fidelity® New Markets Income Fund
Class A	1.07%
Actual		$ 5.66
Hypothetical- B		$ 5.45
Class M	1.08%
Actual		$ 5.71
Hypothetical- B		$ 5.50
Fidelity® New Markets Income Fund	.79%
Actual		$ 4.18
Hypothetical- B		$ 4.02

A Annualized expense ratio reflects expenses net of applicable fee waivers.
B 5% return per year before expenses

Distributions (Unaudited)

The dividend and capital gains distributions for the fund(s) are available on Fidelity.com or Institutional.Fidelity.com.

A total of 1.89% of the dividends distributed during the fiscal year was derived from interest on U.S. Government securities which is generally exempt from state income tax.

The fund designates $224,863,302 of distributions paid during the fiscal year ended 2023 as qualifying to be taxed as section 163(j) interest dividends.

The fund will notify shareholders in January 2024 of amounts for use in preparing 2023 income tax returns.

Board Approval of Investment Advisory Contracts

Board Approval of Investment Advisory Contracts and Management Fees

Fidelity New Markets Income Fund

Each year, the Board of Trustees, including the Independent Trustees (together, the Board), considers the renewal of the fund's management contract with Fidelity Management & Research Company LLC (FMR) and the sub-advisory agreements (together, the Advisory Contracts) for the fund. FMR and the sub-advisers are referred to herein as the Investment Advisers. The Board, assisted by the advice of fund counsel and Independent Trustees' counsel, requests and considers a broad range of information relevant to the renewal of the Advisory Contracts throughout the year.

The Board meets regularly and, at each of its meetings, covers an extensive agenda of topics and materials and considers factors that are relevant to its annual consideration of the renewal of the fund's Advisory Contracts, including the services and support provided to the fund and its shareholders. The Board, acting directly and through its Committees (each of which is composed of and chaired by Independent Trustees), requests and receives information concerning the annual consideration of the renewal of the fund's Advisory Contracts. The Board also meets as needed to review matters specifically related to the Board's annual consideration of the renewal of the Advisory Contracts. Members of the Board may also meet with trustees of other Fidelity funds through joint ad hoc committees to discuss certain matters relevant to all of the Fidelity funds.

At its July 2023 meeting, the Board unanimously determined to renew the fund's Advisory Contracts. In reaching its determination, the Board considered all factors it believed relevant, including (i) the nature, extent, and quality of the services provided to the fund and its shareholders (including the investment performance of the fund); (ii) the competitiveness relative to peer funds of the fund's management fee and the total expense ratio of a representative class (the retail class, which was selected because it is the largest class without 12b-1 fees); (iii) the total costs of the services provided by and the profits realized by FMR and its affiliates (Fidelity) from its relationships with the fund; and (iv) the extent to which, if any, economies of scale exist and are realized as the fund grows, and whether any economies of scale are appropriately shared with fund shareholders. The Board also considered the broad range of investment choices available to shareholders from FMR's competitors and that the fund's shareholders have chosen to invest in the fund, which is part of the Fidelity family of funds. The Board's decision to renew the Advisory Contracts was not based on any single factor.

The Board reached a determination, with the assistance of fund counsel and Independent Trustees' counsel and through the exercise of its business judgment, that the renewal of the Advisory Contracts was in the best interests of the fund and its shareholders and that the compensation payable under the Advisory Contracts was fair and reasonable in light of all of the surrounding circumstances.

Nature, Extent, and Quality of Services Provided. The Board considered staffing as it relates to the fund, including the backgrounds and experience of investment personnel of the Investment Advisers, and also considered the Investment Advisers' implementation of the fund's investment program. The Independent Trustees also had discussions with senior management of Fidelity's investment operations and investment groups. The Board considered the structure of the investment personnel compensation program and whether this structure provides appropriate incentives to act in the best interests of the fund. Additionally, the Board considered the portfolio managers' investments, if any, in the funds that they manage.

Resources Dedicated to Investment Management and Support Services. The Board and the Fund Oversight and Research Committees reviewed the general qualifications and capabilities of Fidelity's investment staff, including its size, education, experience, and resources, as well as Fidelity's approach to recruiting, training, managing, and compensating investment personnel. The Board noted the resources devoted to expansion of Fidelity's global investment organization, and that Fidelity's analysts have extensive resources, tools, and capabilities that allow them to conduct sophisticated quantitative and fundamental analysis, as well as credit analysis of issuers, counterparties, and guarantors. Further, the Board considered that Fidelity's investment professionals have sufficient access to global information and data so as to provide competitive investment results over time, and that those professionals also have access to sophisticated tools that permit them to assess portfolio construction and risk and performance attribution characteristics continuously, as well as to transmit new information and research conclusions rapidly around the world. Additionally, in its deliberations, the Board considered Fidelity's trading, risk management, compliance, and technology and operations capabilities and resources, which are integral parts of the investment management process.

Shareholder and Administrative Services. The Board considered (i) the nature, extent, quality, and cost of advisory, administrative, and shareholder services performed by the Investment Advisers and their affiliates under the Advisory Contracts and under separate agreements covering transfer agency, pricing and bookkeeping, and securities lending services for the fund; (ii) the nature and extent of Fidelity's supervision of third party service providers, principally custodians, subcustodians, and pricing vendors; and (iii) the resources devoted by Fidelity to, and the record of compliance with, the fund's compliance policies and procedures. The Board also reviewed the allocation of fund brokerage, including allocations to brokers affiliated with the Investment Advisers, the use of brokerage commissions to pay fund expenses, and the use of "soft" commission dollars to pay for research services. The Board also considered the fund's securities lending activities and any payments made to Fidelity relating to securities lending.

The Board noted that the growth of fund assets over time across the complex allows Fidelity to reinvest in the development of services designed to enhance the value and convenience of the Fidelity funds as investment vehicles. These services include 24-hour access to account information and market information over the Internet and through telephone representatives, investor education materials, and asset allocation tools. The Board also considered that it reviews customer service metrics such as telephone response times, continuity of services on the website and metrics addressing services at Fidelity Investor Centers.

Investment in a Large Fund Family. The Board considered the benefits to shareholders of investing in a fund that is part of a large family of funds offering a variety of investment disciplines and providing a large variety of fund investor services. The Board noted that Fidelity had taken, or had made recommendations that resulted in the Fidelity funds taking, a number of actions over the previous year that benefited particular funds and/or the Fidelity funds in general.

Investment Performance. The Board took into account discussions that occur with representatives of the Investment Advisers, and reports that it receives, at Board meetings throughout the year, relating to fund investment performance. In this regard the Board noted that as part of regularly scheduled fund reviews and other reports to the Board on fund performance, the Board considered annualized return information for the fund for different time periods, measured against an appropriate securities market index (benchmark index) and an appropriate peer group of funds with similar objectives (peer group). The Board also considered information about performance attribution. In its ongoing evaluation of fund investment performance, the Board gives particular attention to information indicating changes in performance of the funds over different time periods and discussed with the Investment Advisers the reasons for any overperformance or underperformance.

In addition to reviewing absolute and relative fund performance, the Independent Trustees periodically consider the appropriateness of fund performance metrics in evaluating the results achieved. The Independent Trustees generally give greater weight to fund performance over longer time periods than over shorter time periods. Depending on the circumstances, the Independent Trustees may be satisfied with a fund's performance notwithstanding that it lags its benchmark index or peer group for certain periods.

Based on its review, the Board concluded that the nature, extent, and quality of services provided to the fund under the Advisory Contracts should continue to benefit the shareholders of the fund.

Competitiveness of Management Fee and Total Expense Ratio. The Board was provided with information regarding industry trends in management fees and expenses. In its review of the fund's management fee and the total expense ratio of the retail class, the Board considered the fund's management fee rate as well as other fund or class expenses, as applicable, such as transfer agent fees, pricing and bookkeeping fees, fund-paid 12b-1 fees, and custodial, legal, and audit fees. The Board noted that Fidelity may agree to waive fees or reimburse expenses from time to time, and the extent to which, if any, it has done so for the fund.

Comparisons of Management Fees and Total Expense Ratios. Among other things, the Board reviewed data for selected groups of competitive funds and classes (referred to as "mapped groups") that were compiled by Fidelity based on combining similar investment objective categories (as classified by Lipper) that have comparable investment mandates. The data reviewed by the Board included (i) gross management fee comparisons (before taking into account expense reimbursements or caps) relative to the total universe of funds within the mapped group; (ii) gross management fee comparisons relative to a subset of non-Fidelity funds in the mapped group that are similar in size and management fee structure to the fund (referred to as the "asset size peer group"); (iii) total expense comparisons of the retail class of the fund relative to funds and classes in the mapped group that have a similar sales load structure to the retail class of the fund (referred to as the "similar sales load structure group"); and (iv) total expense comparisons of the retail class of the fund relative to funds and classes in the similar sales load structure group that are similar in size and management fee structure to the fund (referred to as the "total expense asset size peer group"). The total expense asset size peer group comparison excludes performance adjustments and fund-paid 12b-1 fees to eliminate variability in fee structures.

The information provided to the Board indicated that the fund's management fee rate ranked below the competitive median of the mapped group for the 12-month period ended September 30, 2022 and below the competitive median of the asset size peer group for the 12-month period ended September 30, 2022. Further, the information provided to the Board indicated that the total expense ratio of the retail class of the fund ranked below the competitive median of the similar sales load structure group for the 12-month period ended September 30, 2022 and below the competitive median of the total expense asset size peer group for the 12-month period ended September 30, 2022.

The Board also considered that, for funds subject to the group fee, FMR agreed to voluntarily waive fees over a specified period of time in amounts designed to account for assets converted from certain funds to certain collective investment trusts.

Fees Charged to Other Fidelity Clients. The Board also considered Fidelity fee structures and other information with respect to clients of Fidelity, such as other funds advised or subadvised by Fidelity, pension plan clients, and other institutional clients with similar mandates. The Board noted that a joint ad hoc committee created by it and the boards of other Fidelity funds periodically reviews and compares Fidelity's institutional investment advisory business with its business of providing services to the Fidelity funds and also noted the most recent findings of the committee. The Board noted that the committee's review included a consideration of the differences in services provided, fees charged, and costs incurred, as well as competition in the markets serving the different categories of clients.

Based on its review, the Board concluded that the fund's management fee is fair and reasonable in light of the services that the fund receives and the other factors considered. Further, based on its review of total expense ratios and fees charged to other Fidelity clients, the Board concluded that the total expense ratio of each class of the fund was reasonable in light of the services that the fund and its shareholders receive and the other factors considered.

Costs of the Services and Profitability. The Board considered the revenues earned and the expenses incurred by Fidelity in conducting the business of developing, marketing, distributing, managing, administering and servicing the fund and servicing the fund's shareholders. The Board also considered the level of Fidelity's profits in respect of all the Fidelity funds.

On an annual basis, Fidelity presents to the Board information about the profitability of its relationships with the fund. Fidelity calculates profitability information for each fund, as well as aggregate profitability information for groups of Fidelity funds and all Fidelity funds, using a series of detailed revenue and cost allocation methodologies which originate with the books and records of Fidelity on which Fidelity's audited financial statements are based. The Audit Committee of the Board reviews any significant changes from the prior year's methodologies and the full Board approves such changes.

A public accounting firm has been engaged annually by the Board as part of the Board's assessment of Fidelity's profitability analysis. The engagement includes the review and assessment of the methodologies used by Fidelity in determining the revenues and expenses attributable to Fidelity's fund business, and completion of agreed-upon procedures in respect of the mathematical accuracy of certain fund profitability information and its conformity to established allocation methodologies. After considering the reports issued under the engagement and information provided by Fidelity, the Board concluded that while other allocation methods may also be reasonable, Fidelity's profitability methodologies are reasonable in all material respects.

The Board also reviewed Fidelity's non-fund businesses and potential indirect benefits such businesses may have received as a result of their association with Fidelity's fund business (i.e., fall-out benefits) as well as cases where Fidelity's affiliates may benefit from the funds' business. The Board considered areas where potential indirect benefits to the Fidelity funds from their relationships with Fidelity may exist. The Board's consideration of these matters was informed by the findings of a joint ad hoc committee created by it and the boards of other Fidelity funds to evaluate potential fall-out benefits.

The Board considered the costs of the services provided by and the profits realized by Fidelity in connection with the operation of the fund and was satisfied that the profitability was not excessive.

Economies of Scale. The Board considered whether there have been economies of scale in respect of the management of the Fidelity funds, whether the Fidelity funds (including the fund) have appropriately benefited from any such economies of scale, and whether there is potential for realization of any further economies of scale. The Board considered the extent to which the fund will benefit from economies of scale as assets grow through increased services to the fund, through waivers or reimbursements, or through fee or expense ratio reductions. The Board also noted that a committee (the Economies of Scale Committee) created by it and the boards of other Fidelity funds periodically analyzes whether Fidelity attains economies of scale in respect of the management and servicing of the Fidelity funds, whether the Fidelity funds have appropriately benefited from such economies of scale, and whether there is potential for realization of any further economies of scale.

The Board recognized that the fund's management contract incorporates a "group fee" structure, which provides for lower group fee rates as total "group assets" increase, and for higher group fee rates as total "group assets" decrease ("group assets" as defined in the management contract). FMR calculates the group fee rates based on a tiered asset "breakpoint" schedule that varies based on asset class. The Board considered that the group fee is designed to deliver the benefits of economies of scale to fund shareholders when total Fidelity fund assets increase, even if assets of any particular fund are unchanged or have declined, because some portion of Fidelity's costs are attributable to services provided to all Fidelity funds, and all funds benefit if those costs can be allocated among more assets. The Board further considered that Fidelity agreed to impose a temporary fee waiver in the form of additional breakpoints to the current breakpoint schedule. The Board concluded that, given the group fee structure, fund shareholders will benefit from lower management fees as "group assets" increase at the fund complex level, regardless of whether Fidelity achieves any such economies of scale.

The Board concluded, taking into account the analysis of the Economies of Scale Committee, that economies of scale, if any, are being appropriately shared between fund shareholders and Fidelity.

Additional Information Requested by the Board. In order to develop fully the factual basis for consideration of the Fidelity funds' advisory contracts, the Board requested and received additional information on certain topics, including: (i) fund flow and performance trends, in particular the underperformance of certain funds and strategies, and Fidelity's long-term strategies for certain funds, including any consideration of fund liquidations or mergers; (ii) the operation of performance fees and competitor use of performance fees; (iii) Fidelity's pricing philosophy compared to competitors; (iv) fund profitability methodology and data; (v) evaluation of competitive fund data and peer group classifications and fee and expense comparisons; (vi) the management fee and expense structures for different funds and classes and information about the differences between various fee and expense structures; (vii) group fee breakpoints and related voluntary fee waivers; and (viii) information regarding other accounts managed by Fidelity and the funds' sub-advisory arrangements.

Conclusion. Based on its evaluation of all of the conclusions noted above, and after considering all factors it believed relevant, the Board, including the Independent Trustees, concluded that the advisory and sub-advisory fee arrangements are fair and reasonable in light of all of the surrounding circumstances and that the fund's Advisory Contracts should be renewed through July 31, 2024.

1.540082.126

NMI-ANN-0224

Item 2.

Code of Ethics

As of the end of the period, December 31, 2023, Fidelity Summer Street Trust (the trust) has adopted a code of ethics, as defined in Item 2 of Form N-CSR, that applies to its President and Treasurer and its Chief Financial Officer. A copy of the code of ethics is filed as an exhibit to this Form N-CSR.

Item 3.

Audit Committee Financial Expert

The Board of Trustees of the trust has determined that Donald F. Donahue is an audit committee financial expert, as defined in Item 3 of Form N-CSR. Mr. Donahue is independent for purposes of Item 3 of Form N-CSR.

Item 4.

Principal Accountant Fees and Services

Fees and Services

The following table presents fees billed by PricewaterhouseCoopers LLP (“PwC”) in each of the last two fiscal years for services rendered to Fidelity New Markets Income Fund (the “Fund”):

Services Billed by PwC

December 31, 2023 Fees^A

Audit Fees

Audit-Related Fees

Tax Fees

All Other Fees

Fidelity New Markets Income Fund

$79,600

$6,200

$13,700

$2,100

December 31, 2022 Fees^A

Audit Fees

Audit-Related Fees

Tax Fees

All Other Fees

Fidelity New Markets Income Fund

$75,600

$6,300

$9,300

$2,200

^AAmounts may reflect rounding.

The following table(s) present(s) fees billed by PwC that were required to be approved by the Audit Committee for services that relate directly to the operations and financial reporting of the Fund(s) and that are rendered on behalf of Fidelity Management & Research Company LLC ("FMR") and entities controlling, controlled by, or under

common control with FMR (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser) that provide ongoing services to the Fund(s) (“Fund Service Providers”):

Services Billed by PwC


	December 31, 2023^A	December 31, 2022^A
Audit-Related Fees	$8,284,200	$7,914,600
Tax Fees	$1,000	$1,000
All Other Fees	$-	$-

^A Amounts may reflect rounding.

“Audit-Related Fees” represent fees billed for assurance and related services that are reasonably related to the performance of the fund audit or the review of the fund's financial statements and that are not reported under Audit Fees.

“Tax Fees” represent fees billed for tax compliance, tax advice or tax planning that relate directly to the operations and financial reporting of the fund.

“All Other Fees” represent fees billed for services provided to the fund or Fund Service Provider, a significant portion of which are assurance related, that relate directly to the operations and financial reporting of the fund, excluding those services that are reported under Audit Fees, Audit-Related Fees or Tax Fees.

Assurance services must be performed by an independent public accountant.

* * *

The aggregate non-audit fees billed by PwC for services rendered to the Fund(s), FMR (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any Fund Service Provider for each of the last two fiscal years of the Fund(s) are as follows:


Billed By	December 31, 2023^A	December 31, 2022^A
PwC	$13,609,800	$12,900,800

^A Amounts may reflect rounding.

The trust's Audit Committee has considered non-audit services that were not pre-approved that were provided by PwC to Fund Service Providers to be compatible with maintaining the independence of PwC in its(their) audit of the Fund(s), taking into

account representations from PwC, in accordance with Public Company Accounting Oversight Board rules, regarding its independence from the Fund(s) and its(their) related entities and FMR’s review of the appropriateness and permissibility under applicable law of such non-audit services prior to their provision to the Fund(s) Service Providers.

Audit Committee Pre-Approval Policies and Procedures

The trust’s Audit Committee must pre-approve all audit and non-audit services provided by a fund’s independent registered public accounting firm relating to the operations or financial reporting of the fund. Prior to the commencement of any audit or non-audit services to a fund, the Audit Committee reviews the services to determine whether they are appropriate and permissible under applicable law.

The Audit Committee has adopted policies and procedures to, among other purposes, provide a framework for the Committee’s consideration of non-audit services by the audit firms that audit the Fidelity funds. The policies and procedures require that any non-audit service provided by a fund audit firm to a Fidelity fund and any non-audit service provided by a fund auditor to a Fund Service Provider that relates directly to the operations and financial reporting of a Fidelity fund (“Covered Service”) are subject to approval by the Audit Committee before such service is provided.

All Covered Services must be approved in advance of provision of the service either: (i) by formal resolution of the Audit Committee, or (ii) by oral or written approval of the service by the Chair of the Audit Committee (or if the Chair is unavailable, such other member of the Audit Committee as may be designated by the Chair to act in the Chair’s absence). The approval contemplated by (ii) above is permitted where the Treasurer determines that action on such an engagement is necessary before the next meeting of the Audit Committee.

Non-audit services provided by a fund audit firm to a Fund Service Provider that do not relate directly to the operations and financial reporting of a Fidelity fund are reported to the Audit Committee periodically.

Non-Audit Services Approved Pursuant to Rule 2-01(c)(7)(i)(C) and (ii) of Regulation S-X (“De Minimis Exception”)

There were no non-audit services approved or required to be approved by the Audit Committee pursuant to the De Minimis Exception during the Fund’s(s’) last two fiscal years relating to services provided to (i) the Fund(s) or (ii) any Fund Service Provider that relate directly to the operations and financial reporting of the Fund(s).

The Registrant has not retained, for the preparation of the audit report on the financial statements included in the Form N-CSR, a registered public accounting firm that has a branch or office that is located in a foreign jurisdiction and that the Public Company Accounting Oversight Board (the “PCAOB”) has determined that the PCAOB is unable

to inspect or investigate completely because of a position taken by an authority in the foreign jurisdiction.

The Registrant is not a “foreign issuer,” as defined in 17 CFR 240.3b-4.

Item 5.

Audit Committee of Listed Registrants

Not applicable.

Item 6.

Investments

(a)

Not applicable.

(b)

Not applicable.

Item 7.

Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

Not applicable.

Item 8.

Portfolio Managers of Closed-End Management Investment Companies

Not applicable.

Item 9.

Purchase of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers

Not applicable.

Item 10.

Submission of Matters to a Vote of Security Holders

There were no material changes to the procedures by which shareholders may recommend nominees to the trust’s Board of Trustees.

Item 11.

Controls and Procedures

(a)(i) The President and Treasurer and the Chief Financial Officer have concluded that the trust’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act) provide reasonable assurances that material information relating to the trust is made known to them by the appropriate persons, based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this report.

(a)(ii) There was no change in the trust’s internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act) that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the trust’s internal control over financial reporting.

Item 12.

Disclosure of Securities Lending Activities for Closed-End Management

Investment Companies

Not applicable.

Item 18.

Recovery of Erroneously Awarded Compensation

(a)

Not applicable.

(b)

Not applicable.

Item 19.

Exhibits


(a)	(1)	Code of Ethics pursuant to Item 2 of Form N-CSR is filed and attached hereto as EX-99.CODE ETH.
(a)	(2)	Certification pursuant to Rule 30a-2(a) under the Investment Company Act of 1940 (17 CFR 270.30a-2(a)) is filed and attached hereto as Exhibit 99.CERT.
(a)	(3)	Not applicable.
(b)		Certification pursuant to Rule 30a-2(b) under the Investment Company Act of 1940 (17 CFR 270.30a-2(b)) is furnished and attached hereto as Exhibit 99.906CERT.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Fidelity Summer Street Trust


By:	/s/Stacie M. Smith
	Stacie M. Smith
	President and Treasurer

Date:	February 22, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.


By:	/s/Stacie M. Smith
	Stacie M. Smith
	President and Treasurer

Date:	February 22, 2024


By:	/s/John J. Burke III
	John J. Burke III
	Chief Financial Officer

Date:	February 22, 2024

Fidelity Summer Street Trust N-CSRCertified annual shareholder report (management investment company)