Columbia Funds Series Trust NPORT-P Columbia Mid Cap Index Fund (Nov 2023 report)

COLUMBIA MID CAP INDEX FUND

Not FDIC or NCUA Insured • No Financial Institution Guarantee • May Lose Value

PORTFOLIO OF INVESTMENTS

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

(Percentages represent value of investments compared to net assets)

Investments in securities

Common Stocks 98.8%
Issuer	Shares		Value ($)
Communication Services 1.7%
Diversified Telecommunication Services 0.4%
Frontier Communications Parent, Inc.(a)		227,354		4,976,779
Iridium Communications, Inc.		128,540		4,897,374
Total				9,874,153
Entertainment 0.2%
TKO Group Holdings, Inc.		61,462		4,752,856
Interactive Media & Services 0.3%
Ziff Davis, Inc.(a)		47,780		3,049,319
ZoomInfo Technologies, Inc.(a)		313,629		4,506,849
Total				7,556,168
Media 0.8%
Cable One, Inc.		4,681		2,490,666
New York Times Co. (The), Class A		168,121		7,900,006
Nexstar Media Group, Inc., Class A		34,259		4,862,380
TEGNA, Inc.		207,144		3,175,518
Total				18,428,570
Total Communication Services				40,611,747
Consumer Discretionary 15.5%
Automobile Components 1.5%
Adient PLC(a)		96,270		3,099,894
Autoliv, Inc.		78,105		8,093,240
Fox Factory Holding Corp.(a)		43,550		2,722,311
Gentex Corp.		239,949		7,296,849
Goodyear Tire & Rubber Co. (The)(a)		291,386		4,047,352
Lear Corp.		60,386		8,076,627
Visteon Corp.(a)		28,986		3,439,769
Total				36,776,042
Automobiles 0.4%
Harley-Davidson, Inc.		132,532		3,974,635
Thor Industries, Inc.		54,795		5,428,540
Total				9,403,175

Common Stocks (continued)
Issuer	Shares		Value ($)
Broadline Retail 0.4%
Macy’s, Inc.		280,133		4,442,909
Nordstrom, Inc.		99,600		1,555,752
Ollie’s Bargain Outlet Holdings, Inc.(a)		63,522		4,654,257
Total				10,652,918
Diversified Consumer Services 1.0%
Graham Holdings Co., Class B		3,788		2,375,644
Grand Canyon Education, Inc.(a)		30,653		4,190,878
H&R Block, Inc.		156,533		7,109,729
Service Corp. International		155,066		9,500,894
Total				23,177,145
Hotels, Restaurants & Leisure 3.6%
Aramark		268,333		7,516,007
Boyd Gaming Corp.		72,990		4,310,059
Choice Hotels International, Inc.		25,892		2,855,370
Churchill Downs, Inc.		70,032		8,107,605
Hilton Grand Vacations, Inc.(a)		74,657		2,557,749
Hyatt Hotels Corp., Class A		47,198		5,416,442
Light & Wonder, Inc.(a)		93,660		8,281,417
Marriott Vacations Worldwide Corp.		34,862		2,541,440
Penn Entertainment, Inc.(a)		155,251		3,812,964
Planet Fitness, Inc., Class A(a)		86,920		5,905,345
Texas Roadhouse, Inc.		68,610		7,722,742
Travel + Leisure Co.		75,986		2,708,141
Vail Resorts, Inc.		39,630		8,611,995
Wendy’s Co. (The)		174,253		3,267,244
Wingstop, Inc.		30,814		7,406,453
Wyndham Hotels & Resorts, Inc.		86,608		6,698,263
Total				87,719,236
Household Durables 1.7%
Helen of Troy Ltd.(a)		24,771		2,601,698
KB Home		79,878		4,161,644
Leggett & Platt, Inc.		136,910		3,131,132
Taylor Morrison Home Corp., Class A(a)		112,501		5,073,795
Tempur Sealy International, Inc.		176,960		7,135,027

2 Columbia Mid Cap Index Fund  |  Third Quarter Report 2023

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Toll Brothers, Inc.		112,393		9,653,435
TopBuild Corp.(a)		32,643		9,655,146
Total				41,411,877
Leisure Products 0.9%
Brunswick Corp.		71,782		5,661,446
Mattel, Inc.(a)		364,019		6,916,361
Polaris, Inc.		54,774		4,517,212
Topgolf Callaway Brands Corp.(a)		146,901		1,801,006
YETI Holdings, Inc.(a)		89,156		3,801,612
Total				22,697,637
Specialty Retail 3.8%
AutoNation, Inc.(a)		27,619		3,736,022
Burlington Stores, Inc.(a)		66,694		11,310,635
Dick’s Sporting Goods, Inc.		64,409		8,379,611
Five Below, Inc.(a)		57,217		10,783,116
Floor & Decor Holdings, Inc., Class A(a)		109,413		10,034,266
GameStop Corp., Class A(a)		275,663		4,010,897
Gap, Inc. (The)		219,429		4,403,940
Lithia Motors, Inc., Class A		28,331		7,564,094
Murphy U.S.A., Inc.		20,067		7,415,760
Penske Automotive Group, Inc.		20,061		2,995,107
Restoration Hardware Holdings, Inc.(a)		15,882		4,287,664
Valvoline, Inc.		142,531		4,880,261
Williams-Sonoma, Inc.		66,014		12,380,266
Total				92,181,639
Textiles, Apparel & Luxury Goods 2.2%
Capri Holdings Ltd.(a)		119,305		5,779,134
Carter’s, Inc.		38,297		2,611,473
Columbia Sportswear Co.		35,933		2,814,632
Crocs, Inc.(a)		63,364		6,691,872
Deckers Outdoor Corp.(a)		26,863		17,836,226
PVH Corp.		64,467		6,303,583
Skechers U.S.A., Inc., Class A(a)		138,117		8,136,473
Under Armour, Inc., Class A(a)		193,969		1,578,908
Under Armour, Inc., Class C(a)		205,546		1,574,482
Total				53,326,783
Total Consumer Discretionary				377,346,452

Common Stocks (continued)
Issuer	Shares		Value ($)
Consumer Staples 4.1%
Beverages 0.6%
Boston Beer Co., Inc. (The), Class A(a)		9,716		3,446,848
Celsius Holdings, Inc.(a)		151,749		7,513,093
Coca-Cola Bottling Co. Consolidated		4,817		3,538,183
Total				14,498,124
Consumer Staples Distribution & Retail 1.9%
BJ’s Wholesale Club Holdings, Inc.(a)		138,118		8,919,661
Casey’s General Stores, Inc.		38,433		10,584,448
Grocery Outlet Holding Corp.(a)		101,533		2,864,246
Performance Food Group, Inc.(a)		160,502		10,440,655
Sprouts Farmers Market, Inc.(a)		104,852		4,517,024
U.S. Foods Holding Corp.(a)		233,488		10,233,779
Total				47,559,813
Food Products 1.1%
Darling Ingredients, Inc.(a)		163,941		7,192,092
Flowers Foods, Inc.		197,666		4,113,429
Ingredion, Inc.		67,985		6,967,783
Lancaster Colony Corp.		20,934		3,472,951
Pilgrim’s Pride Corp.(a)		41,377		1,057,596
Post Holdings, Inc.(a)		52,229		4,461,923
Total				27,265,774
Personal Care Products 0.5%
BellRing Brands, Inc.(a)		135,113		7,147,477
Coty, Inc., Class A(a)		368,167		4,197,104
Total				11,344,581
Total Consumer Staples				100,668,292
Energy 5.4%
Energy Equipment & Services 1.0%
ChampionX Corp.		202,066		5,924,575
NOV, Inc.		404,763		7,617,640
Valaris Ltd.(a)		65,405		4,486,783
Weatherford International PLC(a)		74,086		6,718,859
Total				24,747,857

Columbia Mid Cap Index Fund  |  Third Quarter Report 2023 3

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Oil, Gas & Consumable Fuels 4.4%
Antero Midstream Corp.		350,073		4,662,972
Antero Resources Corp.(a)		290,238		6,858,324
Chesapeake Energy Corp.		115,641		9,287,129
Chord Energy Corp.		42,690		6,921,757
Civitas Resources, Inc.		87,703		6,024,319
CNX Resources Corp.(a)		165,970		3,462,134
DT Midstream, Inc.		99,605		5,706,371
Equitrans Midstream Corp.		445,348		4,177,364
HF Sinclair Corp.		164,433		8,629,444
Matador Resources Co.		113,899		6,592,474
Murphy Oil Corp.		152,486		6,521,826
Ovintiv, Inc.		260,839		11,565,601
PBF Energy, Inc., Class A		113,068		5,020,219
Permian Resources Corp.		377,685		4,962,781
Range Resources Corp.		248,085		8,062,763
Southwestern Energy Co.(a)		1,132,192		7,461,145
Total				105,916,623
Total Energy				130,664,480
Financials 15.1%
Banks 5.3%
Associated Banc-Corp.		155,131		2,752,024
Bank OZK		108,160		4,527,578
Cadence Bank		187,716		4,702,286
Columbia Banking System, Inc.		214,390		4,808,768
Commerce Bancshares, Inc.		116,643		5,898,636
Cullen/Frost Bankers, Inc.		65,912		6,478,490
East West Bancorp, Inc.		145,431		9,150,519
First Financial Bankshares, Inc.		132,051		3,466,339
First Horizon Corp.		574,289		7,345,156
FNB Corp.		368,832		4,422,296
Glacier Bancorp, Inc.		113,968		3,832,744
Hancock Whitney Corp.		88,529		3,651,821
Home Bancshares, Inc.		193,656		4,295,290
International Bancshares Corp.		54,851		2,461,164
New York Community Bancorp, Inc.		742,631		6,988,158
Old National Bancorp		300,752		4,478,197
Pinnacle Financial Partners, Inc.		78,900		5,725,773
Prosperity Bancshares, Inc.		96,337		5,810,084

Common Stocks (continued)
Issuer	Shares		Value ($)
South State Corp.		78,126		5,785,230
Synovus Financial Corp.		150,245		4,626,044
Texas Capital Bancshares, Inc.(a)		49,340		2,707,779
UMB Financial Corp.		44,885		3,216,459
United Bankshares, Inc.		138,699		4,592,324
Valley National Bancorp		438,310		3,988,621
Webster Financial Corp.		178,089		7,987,292
Wintrust Financial Corp.		62,920		5,390,356
Total				129,089,428
Capital Markets 2.4%
Affiliated Managers Group, Inc.		36,025		4,883,189
Carlyle Group, Inc. (The)		221,997		7,610,057
Evercore, Inc., Class A		35,831		5,286,864
Federated Hermes, Inc., Class B		90,749		2,887,633
Interactive Brokers Group, Inc., Class A		109,956		8,558,975
Janus Henderson Group PLC		136,224		3,567,707
Jefferies Financial Group, Inc.		181,664		6,438,172
Morningstar, Inc.		26,745		7,578,463
SEI Investments Co.		103,398		6,066,361
Stifel Financial Corp.		107,363		6,551,290
Total				59,428,711
Consumer Finance 0.7%
Ally Financial, Inc.		279,030		8,153,256
FirstCash Holdings, Inc.		38,020		4,258,240
SLM Corp.		232,388		3,492,792
Total				15,904,288
Financial Services 1.4%
Essent Group Ltd.		109,973		5,316,095
Euronet Worldwide, Inc.(a)		48,492		4,229,472
MGIC Investment Corp.		290,197		5,104,565
Voya Financial, Inc.		108,731		7,775,354
Western Union Co. (The)		384,984		4,477,364
WEX, Inc.(a)		44,152		7,796,360
Total				34,699,210

4 Columbia Mid Cap Index Fund  |  Third Quarter Report 2023

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Insurance 4.7%
American Financial Group, Inc.		68,041		7,783,210
Brighthouse Financial, Inc.(a)		67,329		3,503,128
CNO Financial Group, Inc.		116,149		3,077,949
Erie Indemnity Co., Class A		25,638		7,579,618
Fidelity National Financial, Inc.		265,779		11,917,530
First American Financial Corp.		105,962		6,315,335
Hanover Insurance Group, Inc. (The)		36,751		4,568,149
Kemper Corp.		61,892		2,737,483
Kinsale Capital Group, Inc.		22,618		7,918,562
Old Republic International Corp.		272,103		7,975,339
Primerica, Inc.		36,765		7,702,635
Reinsurance Group of America, Inc.		68,059		11,097,701
RenaissanceRe Holdings Ltd.		52,610		11,277,480
RLI Corp.		41,244		5,592,687
Selective Insurance Group, Inc.		62,257		6,330,914
Unum Group		189,018		8,127,774
Total				113,505,494
Mortgage Real Estate Investment Trusts (REITS) 0.6%
Annaly Capital Management, Inc.		507,687		9,173,904
Starwood Property Trust, Inc.		305,428		6,068,855
Total				15,242,759
Total Financials				367,869,890
Health Care 7.7%
Biotechnology 1.6%
Arrowhead Pharmaceuticals, Inc.(a)		110,184		2,335,901
Exelixis, Inc.(a)		327,263		7,137,606
Halozyme Therapeutics, Inc.(a)		135,601		5,235,554
Neurocrine Biosciences, Inc.(a)		100,376		11,702,838
United Therapeutics Corp.(a)		48,242		11,578,080
Total				37,989,979
Health Care Equipment & Supplies 2.3%
Enovis Corp.(a)		51,016		2,523,251
Envista Holdings Corp.(a)		168,394		3,820,860
Globus Medical, Inc., Class A(a)		120,641		5,419,194
Haemonetics Corp.(a)		52,127		4,215,511
Inari Medical, Inc.(a)		52,467		3,131,755
Integra LifeSciences Holdings Corp.(a)		72,797		2,852,914

Common Stocks (continued)
Issuer	Shares		Value ($)
Lantheus Holdings, Inc.(a)		70,340		5,037,751
LivaNova PLC(a)		55,386		2,484,062
Masimo Corp.(a)		45,605		4,275,925
Neogen Corp.(a)		202,274		3,432,590
Penumbra, Inc.(a)		39,509		8,774,554
QuidelOrtho Corp.(a)		50,804		3,491,759
Shockwave Medical, Inc.(a)		37,775		6,593,626
Total				56,053,752
Health Care Providers & Services 2.1%
Acadia Healthcare Co., Inc.(a)		94,743		6,915,291
Amedisys, Inc.(a)		33,543		3,138,954
Chemed Corp.		15,498		8,787,366
Encompass Health Corp.		103,027		6,714,270
HealthEquity, Inc.(a)		87,856		5,888,109
Option Care Health, Inc.(a)		184,895		5,500,626
Patterson Companies, Inc.		87,471		2,222,638
Progyny, Inc.(a)		85,319		2,931,561
R1 RCM, Inc.(a)		202,404		2,141,434
Tenet Healthcare Corp.(a)		104,368		7,202,436
Total				51,442,685
Health Care Technology 0.1%
Doximity, Inc., Class A(a)		129,016		2,999,622
Life Sciences Tools & Services 1.1%
Azenta, Inc.(a)		61,832		3,485,470
Bruker Corp.		101,136		6,582,942
Medpace Holdings, Inc.(a)		23,876		6,463,711
Repligen Corp.(a)		53,300		8,381,425
Sotera Health Co.(a)		101,675		1,387,864
Total				26,301,412
Pharmaceuticals 0.5%
Jazz Pharmaceuticals PLC(a)		64,896		7,672,654
Perrigo Co. PLC		139,174		4,239,240
Total				11,911,894
Total Health Care				186,699,344

Columbia Mid Cap Index Fund  |  Third Quarter Report 2023 5

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Industrials 21.3%
Aerospace & Defense 1.2%
BWX Technologies, Inc.		94,018		7,336,224
Curtiss-Wright Corp.		39,374		8,422,099
Hexcel Corp.		86,822		6,017,633
Woodward, Inc.		62,104		8,395,219
Total				30,171,175
Air Freight & Logistics 0.3%
GXO Logistics, Inc.(a)		122,254		6,878,010
Building Products 4.0%
Advanced Drainage Systems, Inc.		71,181		8,620,731
Builders FirstSource, Inc.(a)		128,525		17,236,488
Carlisle Companies, Inc.		51,312		14,388,398
Fortune Brands Innovations, Inc.		130,431		8,925,393
Lennox International, Inc.		32,854		13,360,408
Owens Corning		92,340		12,519,457
Simpson Manufacturing Co., Inc.		43,864		7,323,972
Trex Company, Inc.(a)		111,592		7,841,570
UFP Industries, Inc.		63,591		6,971,481
Total				97,187,898
Commercial Services & Supplies 1.4%
Brink’s Co. (The)		47,721		3,765,187
Clean Harbors, Inc.(a)		51,765		8,368,330
MSA Safety, Inc.		37,974		6,612,792
Stericycle, Inc.(a)		95,103		4,466,988
Tetra Tech, Inc.		54,731		8,655,708
Vestis Corp.(a)		134,166		2,456,579
Total				34,325,584
Construction & Engineering 1.7%
AECOM		142,597		12,671,169
EMCOR Group, Inc.		48,450		10,296,594
Fluor Corp.(a)		147,368		5,604,405
MasTec, Inc.(a)		62,131		3,767,624
MDU Resources Group, Inc.		209,319		4,006,366
Valmont Industries, Inc.		21,599		4,742,492
Total				41,088,650

Common Stocks (continued)
Issuer	Shares		Value ($)
Electrical Equipment 1.4%
Acuity Brands, Inc.		32,062		5,747,434
EnerSys		42,185		3,732,529
nVent Electric PLC		170,400		9,073,800
Regal Rexnord Corp.		68,161		8,165,688
Sensata Technologies Holding		156,674		5,093,471
Sunrun, Inc.(a)		223,242		2,879,822
Total				34,692,744
Ground Transportation 2.0%
Avis Budget Group, Inc.(a)		20,308		3,713,318
Hertz Global Holdings, Inc.(a)		137,575		1,147,375
Knight-Swift Transportation Holdings, Inc.		165,794		8,916,401
Landstar System, Inc.		36,949		6,379,245
Ryder System, Inc.		46,797		5,013,831
Saia, Inc.(a)		27,275		10,647,887
Werner Enterprises, Inc.		65,158		2,606,972
XPO, Inc.(a)		119,202		10,284,748
Total				48,709,777
Machinery 4.7%
AGCO Corp.		63,884		7,252,751
Chart Industries, Inc.(a)		43,144		5,610,014
Crane Co.		50,187		5,303,762
Donaldson Co., Inc.		124,624		7,582,124
Esab Corp.		58,224		4,491,982
Flowserve Corp.		134,868		5,160,050
Graco, Inc.		173,708		14,032,132
ITT, Inc.		84,390		9,136,905
Lincoln Electric Holdings, Inc.		59,015		11,688,511
Middleby Corp. (The)(a)		55,098		6,955,021
Oshkosh Corp.		67,123		6,530,397
RBC Bearings, Inc.(a)		29,867		7,697,921
Terex Corp.		69,280		3,429,360
Timken Co. (The)		67,181		4,863,904
Toro Co. (The)		106,805		8,864,815
Watts Water Technologies, Inc., Class A		28,146		5,418,386
Total				114,018,035
Marine Transportation 0.2%
Kirby Corp.(a)		61,160		4,694,030

6 Columbia Mid Cap Index Fund  |  Third Quarter Report 2023

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Professional Services 3.0%
ASGN, Inc.(a)		49,750		4,439,690
CACI International, Inc., Class A(a)		23,435		7,521,463
Concentrix Corp.		44,411		4,174,190
ExlService Holdings, Inc.(a)		170,345		4,832,688
Exponent, Inc.		52,268		4,022,545
FTI Consulting, Inc.(a)		34,978		7,711,250
Genpact Ltd.		171,466		5,822,985
Insperity, Inc.		37,246		4,236,733
KBR, Inc.		138,680		7,165,596
ManpowerGroup, Inc.		50,964		3,782,039
MAXIMUS, Inc.		62,480		5,216,455
Paylocity Holding Corp.(a)		44,260		6,934,214
Science Applications International Corp.		55,181		6,478,801
Total				72,338,649
Trading Companies & Distributors 1.4%
Core & Main, Inc., Class A(a)		124,937		4,376,543
GATX Corp.		36,388		3,966,292
MSC Industrial Direct Co., Inc., Class A		48,720		4,746,303
Watsco, Inc.		34,474		13,176,997
WESCO International, Inc.		45,432		7,080,577
Total				33,346,712
Total Industrials				517,451,264
Information Technology 9.9%
Communications Equipment 0.5%
Calix, Inc.(a)		60,672		2,341,332
Ciena Corp.(a)		153,670		7,045,770
Lumentum Holdings, Inc.(a)		70,617		3,022,408
Total				12,409,510
Electronic Equipment, Instruments & Components 3.0%
Arrow Electronics, Inc.(a)		57,216		6,783,529
Avnet, Inc.		93,949		4,393,055
Belden, Inc.		43,477		2,888,612
Cognex Corp.		177,100		6,676,670
Coherent Corp.(a)		133,763		4,921,141
Crane NXT Co.		49,624		2,553,651
IPG Photonics Corp.(a)		30,674		2,937,342
Jabil, Inc.(b)		134,532		15,514,230

Common Stocks (continued)
Issuer	Shares		Value ($)
Littelfuse, Inc.		25,586		5,956,421
Novanta, Inc.(a)		36,807		5,316,403
TD SYNNEX Corp.		53,319		5,259,386
Vishay Intertechnology, Inc.		130,489		2,900,771
Vontier Corp.		159,055		5,364,925
Total				71,466,136
IT Services 0.8%
GoDaddy, Inc., Class A(a)		150,908		15,099,855
Kyndryl Holdings, Inc.(a)		235,278		4,242,062
Total				19,341,917
Semiconductors & Semiconductor Equipment 2.4%
Allegro MicroSystems, Inc.(a)		73,165		1,991,551
Amkor Technology, Inc.		106,086		2,988,443
Cirrus Logic, Inc.(a)		56,236		4,268,875
Lattice Semiconductor Corp.(a)		141,682		8,295,481
MACOM Technology Solutions Holdings, Inc.(a)		55,456		4,657,195
MKS Instruments, Inc.		64,605		5,333,143
Onto Innovation, Inc.(a)		50,435		7,111,839
Power Integrations, Inc.		58,995		4,507,808
Silicon Laboratories, Inc.(a)		32,753		3,451,184
Synaptics, Inc.(a),(b)		40,627		4,113,077
Universal Display Corp.		44,774		7,575,761
Wolfspeed, Inc.(a)		127,947		4,716,126
Total				59,010,483
Software 2.7%
Aspen Technology, Inc.(a)		29,156		5,488,909
Blackbaud, Inc.(a)		44,286		3,332,079
CommVault Systems, Inc.(a)		45,099		3,318,384
Dolby Laboratories, Inc., Class A		61,217		5,272,620
Dropbox, Inc., Class A(a)		265,069		7,469,644
Dynatrace, Inc.(a)		244,193		13,076,535
Manhattan Associates, Inc.(a)		63,389		14,138,916
NCR Voyix Corp.(a)		137,589		2,157,396
Qualys, Inc.(a)		37,736		6,975,122
Teradata Corp.(a)		102,687		4,851,961
			��
Total				66,081,566

Columbia Mid Cap Index Fund  |  Third Quarter Report 2023 7

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Technology Hardware, Storage & Peripherals 0.5%
Super Micro Computer, Inc.(a)		46,939		12,836,408
Total Information Technology				241,146,020
Materials 6.9%
Chemicals 2.2%
Ashland, Inc.		52,671		4,209,466
Avient Corp.		93,622		3,215,916
Axalta Coating Systems Ltd.(a)		227,887		7,171,604
Cabot Corp.		57,498		4,364,098
Chemours Co. LLC (The)		152,208		4,175,065
NewMarket Corp.		7,097		3,765,030
Olin Corp.		129,336		6,096,899
RPM International, Inc.		132,652		13,653,870
Scotts Miracle-Gro Co. (The), Class A		42,715		2,377,517
Westlake Corp.		32,812		4,212,733
Total				53,242,198
Construction Materials 0.4%
Eagle Materials, Inc.		36,421		6,594,022
Knife River Corp.(a)		58,144		3,470,034
Total				10,064,056
Containers & Packaging 1.9%
AptarGroup, Inc.		67,468		8,561,015
Berry Global Group, Inc.		121,395		8,026,637
Crown Holdings, Inc.		124,015		10,666,530
Graphic Packaging Holding Co.		315,782		7,158,778
Greif, Inc., Class A		26,184		1,830,262
Silgan Holdings, Inc.		85,890		3,583,331
Sonoco Products Co.		100,689		5,554,005
Total				45,380,558
Metals & Mining 2.2%
Alcoa Corp.		183,429		4,926,903
Cleveland-Cliffs, Inc.(a)		522,874		8,972,518
Commercial Metals Co.		120,044		5,441,594
MP Materials Corp.(a)		147,910		2,347,332
Reliance Steel & Aluminum Co.		60,191		16,568,175
Royal Gold, Inc.		67,522		8,224,180
United States Steel Corp.		229,184		8,227,705
Total				54,708,407

Common Stocks (continued)
Issuer	Shares		Value ($)
Paper & Forest Products 0.2%
Louisiana-Pacific Corp.		65,966		4,023,266
Total Materials				167,418,485
Real Estate 7.9%
Diversified REITs 0.6%
WP Carey, Inc.		219,894		13,686,203
Health Care REITs 1.0%
Healthcare Realty Trust, Inc.		391,483		5,977,945
Medical Properties Trust, Inc.		615,095		2,983,211
Omega Healthcare Investors, Inc.		251,704		7,991,602
Physicians Realty Trust		245,107		2,862,850
Sabra Health Care REIT, Inc.		237,670		3,469,982
Total				23,285,590
Hotel & Resort REITs 0.1%
Park Hotels & Resorts, Inc.		221,752		3,288,582
Industrial REITs 1.3%
EastGroup Properties, Inc.		46,666		8,108,218
First Industrial Realty Trust, Inc.		135,944		6,396,165
Rexford Industrial Realty, Inc.		212,201		10,444,533
STAG Industrial, Inc.		184,676		6,620,635
Total				31,569,551
Office REITs 0.5%
COPT Defense Properties		115,675		2,799,335
Cousins Properties, Inc.		156,008		3,201,284
Kilroy Realty Corp.		109,607		3,614,839
Vornado Realty Trust		164,522		3,872,848
Total				13,488,306
Real Estate Management & Development 0.3%
Jones Lang LaSalle, Inc.(a)		49,012		7,622,346
Residential REITs 0.9%
Apartment Income REIT Corp.		153,387		4,773,404
Equity LifeStyle Properties, Inc.		191,473		13,613,730
Independence Realty Trust, Inc.		230,676		3,141,807
Total				21,528,941

8 Columbia Mid Cap Index Fund  |  Third Quarter Report 2023

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Common Stocks (continued)
Issuer	Shares		Value ($)
Retail REITs 1.3%
Agree Realty Corp.		98,955		5,859,126
Brixmor Property Group, Inc.		308,979		6,649,228
Kite Realty Group Trust		225,493		4,762,412
NNN REIT, Inc.		187,500		7,616,250
Spirit Realty Capital, Inc.		145,274		5,999,816
Total				30,886,832
Specialized REITs 1.9%
CubeSmart		231,081		9,187,780
EPR Properties		77,425		3,454,703
Gaming and Leisure Properties, Inc.		269,967		12,615,558
Lamar Advertising Co., Class A		89,982		9,114,277
National Storage Affiliates Trust		85,307		2,831,339
PotlatchDeltic Corp.		82,140		3,765,298
Rayonier, Inc.		140,213		4,301,735
Total				45,270,690
Total Real Estate				190,627,041
Utilities 3.3%
Electric Utilities 0.9%
Allete, Inc.		58,999		3,273,265
IDACORP, Inc.		52,027		5,020,605
OGE Energy Corp.		205,875		7,215,919
PNM Resources, Inc.		88,230		3,667,721
Portland General Electric Co.		103,915		4,266,750
Total				23,444,260
Gas Utilities 1.0%
National Fuel Gas Co.		94,381		4,793,611
New Jersey Resources Corp.		100,284		4,231,985
ONE Gas, Inc.		56,996		3,284,679
Southwest Gas Holdings, Inc.		61,716		3,648,033

Common Stocks (continued)
Issuer	Shares		Value ($)
Spire, Inc.		54,071		3,298,871
UGI Corp.		215,323		4,734,953
Total				23,992,132
Independent Power and Renewable Electricity Producers 0.7%
Ormat Technologies, Inc.		55,128		3,711,217
Vistra Corp.		355,155		12,576,039
Total				16,287,256
Multi-Utilities 0.3%
Black Hills Corp.		68,983		3,558,833
Northwestern Energy Group, Inc.		61,717		3,104,982
Total				6,663,815
Water Utilities 0.4%
Essential Utilities, Inc.		250,135		8,907,307
Total Utilities				79,294,770
Total Common Stocks (Cost $1,650,283,676)				2,399,797,785
Money Market Funds 0.5%
	Shares		Value ($)
Columbia Short-Term Cash Fund, 5.605%(c),(d)		12,295,341		12,292,882
Total Money Market Funds (Cost $12,289,495)				12,292,882
Total Investments in Securities (Cost: $1,662,573,171)				2,412,090,667
Other Assets & Liabilities, Net				16,057,789
Net Assets				2,428,148,456

At November 30, 2023, securities and/or cash totaling $3,849,168 were pledged as collateral.

Investments in derivatives

Long futures contracts

Description

Number of contracts

Expiration date

Trading currency

Notional amount

Value/Unrealized appreciation ($)

Value/Unrealized depreciation ($)

S&P Mid 400 Index E-mini

151

12/2023

USD

38,770,760

1,134,977

—

Columbia Mid Cap Index Fund  |  Third Quarter Report 2023 9

PORTFOLIO OF INVESTMENTS (continued)

Columbia Mid Cap Index Fund, November 30, 2023 (Unaudited)

Notes to Portfolio of Investments

(a) Non-income producing investment.

(b) This security or a portion of this security has been pledged as collateral in connection with derivative contracts.

(c) The rate shown is the seven-day current annualized yield at November 30, 2023.

(d) As defined in the Investment Company Act of 1940, as amended, an affiliated company is one in which the Fund owns 5% or more of the company’s outstanding voting securities, or a company which is under common ownership or control with the Fund. The value of the holdings and transactions in these affiliated companies during the period ended November 30, 2023 are as follows:

Affiliated issuers	Beginning of period($)		Purchases($)		Sales($)			Net change in unrealized appreciation (depreciation)($)		End of period($)		Realized gain (loss)($)		Dividends($)		End of period shares
Columbia Short-Term Cash Fund, 5.605%		12,750,837		197,617,888		(198,079,222	)		3,379		12,292,882		3,537		1,097,466		12,295,341

Currency Legend

USD US Dollar

Investments are valued using policies described in the Notes to Financial Statements in the most recent shareholder report.

10 Columbia Mid Cap Index Fund  |  Third Quarter Report 2023

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You may at any time request, free of charge, to receive a paper copy of this report by calling 800.345.6611.

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