UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM10-Q

(MARK ONE)

FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 20172018

OR

FOR THE TRANSITION PERIOD FROM                    TO                    

COMMISSION FILE NUMBER1-9371

ALLEGHANY CORPORATION

EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER

DELAWARE

STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION

51-0283071

I.R.S. EMPLOYER IDENTIFICATION NO.

1411 BROADWAY, 34TH FLOOR, NY, NY 10018

ADDRESS OF PRINCIPAL EXECUTIVE OFFICES, INCLUDING ZIP CODE

212-752-1356

REGISTRANT’S TELEPHONE NUMBER, INCLUDING AREA CODE

NOT APPLICABLE

FORMER NAME, FORMER ADDRESS, AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST REPORT

INDICATE BY CHECK MARK WHETHER THE REGISTRANT: (1) HAS FILED ALL REPORTS REQUIRED TO BE FILED BY SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DURING THE PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE REGISTRANT WAS REQUIRED TO FILE SUCH REPORTS), AND (2) HAS BEEN SUBJECT TO SUCH FILING REQUIREMENTS FOR THE PAST 90 DAYS.    YES  ☒    NO  ☐

INDICATE BY CHECK MARK WHETHER THE REGISTRANT HAS SUBMITTED ELECTRONICALLY AND POSTED ON ITS CORPORATE WEB SITE, IF ANY, EVERY INTERACTIVE DATA FILE REQUIRED TO BE SUBMITTED AND POSTED PURSUANT TO RULE 405 OF REGULATIONS-T (SECTION 232.405 OF THIS CHAPTER) DURING THE PRECEDING 12 MONTHS (OR SUCH SHORTER PERIOD THAT THE REGISTRANT WAS REQUIRED TO SUBMIT AND POST SUCH FILES).    YES  ☒    NO  ☐

INDICATE BY CHECK MARK WHETHER THE REGISTRANT IS A LARGE ACCELERATED FILER, AN ACCELERATED FILER, ANON-ACCELERATED FILER, A SMALLER REPORTING COMPANY, OR AN EMERGING GROWTH COMPANY. SEE THE DEFINITIONS OF “LARGE ACCELERATED FILER,” “ACCELERATED FILER,” “SMALLER REPORTING COMPANY,” AND “EMERGING GROWTH COMPANY” IN RULE12b-2 OF THE EXCHANGE ACT.

IF AN EMERGING GROWTH COMPANY, INDICATE BY CHECK MARK IF THE REGISTRANT HAS ELECTED NOT TO USE THE EXTENDED TRANSITION PERIOD FOR COMPLYING WITH ANY NEW OR REVISED FINANCIAL ACCOUNTING STANDARDS PROVIDED PURSUANT TO SECTION 13(A) OF THE EXCHANGE ACT.  ☐

INDICATE BY CHECK MARK WHETHER THE REGISRANT IS A SHELL COMPANY (AS DEFINED IN RULERULE 12b-2 OF THE ACT).    YES  ☐    NO  ☒

INDICATE THE NUMBER OF SHARES OUTSTANDING OF EACH OF THE ISSUER’S CLASSES OF COMMON STOCK, AS OF THE LAST PRACTICABLE DATE.

15,389,97014,836,571 SHARES, PAR VALUE $1.00 PER SHARE, AS OF OCTOBER 26, 201724, 2018

ALLEGHANY CORPORATION

TABLE OF CONTENTS

Part I. FINANCIAL INFORMATION

Item 1. Financial Statements.

ALLEGHANY CORPORATION AND SUBSIDIARIES

Consolidated Balance Sheets

See accompanying Notes to Unaudited Consolidated Financial Statements.

ALLEGHANY CORPORATION AND SUBSIDIARIES

Consolidated Statements of Earnings and Comprehensive Income

(unaudited)

See accompanying Notes to Unaudited Consolidated Financial Statements.

ALLEGHANY CORPORATION AND SUBSIDIARIES

Consolidated Statements of Earnings and Comprehensive Income

(unaudited)

See accompanying Notes to Unaudited Consolidated Financial Statements.

ALLEGHANY CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows

(unaudited)

See accompanying Notes to Unaudited Consolidated Financial Statements.

ALLEGHANY CORPORATION AND SUBSIDIARIES

Notes to Unaudited Consolidated Financial Statements

1. Summary of Significant Accounting Principles

(a) Principles of Financial Statement Presentation

This Quarterly Report on Form10-Q (this “Form10-Q”) should be read in conjunction with the Annual Report onForm 10-K for the year ended December 31, 20162017 (the “2016“2017 Form10-K”) and the Quarterly Reports on Form10-Q for the quarters ended March 31, 20172018 and June 30, 20172018 of Alleghany Corporation (“Alleghany”).

Alleghany Corporation, a Delaware corporation, owns and manages certain operating subsidiaries and investments, anchored by a core position in property and casualty reinsurance and insurance. Through its wholly-owned subsidiary Transatlantic Holdings, Inc. (“TransRe”), Alleghany is engaged in the property and casualty reinsurance business. TransRe has been a subsidiary of Alleghany since March 2012. Through its wholly-owned subsidiary Alleghany Insurance Holdings LLC (“AIHL”) and its subsidiaries,, Alleghany is engaged in the property and casualty insurance business. AIHL’s insurance operations are principally conducted by its subsidiaries RSUI Group, Inc. (“RSUI”), and CapSpecialty, Inc. (“CapSpecialty”) and Pacific Compensation Corporation (“PacificComp”). CapSpecialty has been a subsidiary of AIHL since January 2002, RSUI has been a subsidiary of AIHL since July 2003 and PacificCompCapSpecialty has been a subsidiary of AIHL since July 2007.January 2002. AIHL Re LLC (“AIHL Re”), a captive reinsurance company which provides reinsurance to Alleghany’s current and former insurance operating subsidiaries and affiliates, has been a wholly-owned subsidiary of Alleghany since its formation in May 2006. Alleghany’s

Prior to December 31, 2017, AIHL’s insurance operations also included Pacific Compensation Corporation (“PacificComp”). On September 12, 2017, AIHL signed a definitive agreement to sell PacificComp to CopperPoint Mutual Insurance Company (“CopperPoint”) for total cash consideration of approximately $158 million. The transaction closed on December 31, 2017, at which time: (i) approximately $442 million of PacificComp assets, consisting primarily of debt securities, and approximately $316 million of PacificComp liabilities, consisting primarily of loss and loss adjustment expenses (“LAE”) reserves, were transferred to CopperPoint; and (ii) AIHL recorded an after-tax gain of approximately $16 million, which included a tax benefit. In connection with the transaction, AIHL Re will continue to provide adverse development reinsurance operations commencedcoverage on March 6, 2012 whenPacificComp’spre-acquisition claims, subject to certain terms and conditions. AIHL Re’s obligations, which are guaranteed by Alleghany, consummatedare subject to: (i) an aggregate limit of $150.0 million; and (ii) a merger with Transatlantic Holdings, Inc. (“TransRe”)final commutation and TransRe became onesettlement as of Alleghany’s wholly-owned subsidiaries.December 31, 2024.

Although Alleghany’s primary sources of revenues and earnings are its reinsurance and insurance operations and investments, Alleghany also sources, executes, manages and monitors certain private capital investments primarily through its wholly-owned subsidiary Alleghany Capital Corporation (“Alleghany Capital”). Alleghany Capital’s investments are included in other activities for segment reporting purposes and include:

The results of W&W|AFCO Steel have been included in Alleghany’s consolidated results beginning with its acquisition by Alleghany Capital on April 28, 2017. On February 7, 2018, W&W|AFCO Steel acquired on August 1, 2017. Hirschfeld Holdings, LP (“Hirschfeld”).

Wilbert is accounted for under the equity method of accounting and is included in other invested assets.

On April 15, 2016, Alleghany Capital acquired an additional 50 percent of Jazwares’ outstanding equity, bringing its equity ownership interest to 80 percent and, as of that date, the The results of JazwaresWilbert have been included in Alleghany’s consolidated results. Prior to April 15, 2016, Jazwares was accounted for under the equity method of accounting.results beginning with its acquisition by Alleghany Capital on August 1, 2017.

In addition, Alleghany owns certain other holding-company investments. Alleghany’s wholly-owned subsidiary Stranded Oil Resources Corporation (“SORC”), is an exploration and manages propertiesproduction company focused on enhanced oil recovery, headquartered in the Sacramento, California region through itsGolden, Colorado. Alleghany’s wholly-owned subsidiary, Alleghany Properties Holdings LLC (“Alleghany Properties”)., owns and manages certain properties in the Sacramento, California region. Alleghany’s public equity investments are managed primarily through Alleghany’s wholly-owned subsidiary Roundwood Asset Management LLC.

On September 12, 2017, AIHL signed a definitive agreement to sell PacificComp to CopperPoint Mutual Insurance Company (“CopperPoint”) for total cash consideration of approximately $150 million. In connection with the transaction, AIHL Re will continue to provide adverse development reinsurance coverage on PacificComp’spre-acquisition claims, subject to certain terms and conditions. The transaction, which is subject to customary regulatory review and approvals, is expected to close on December 31, 2017. Upon closing, Alleghany expects to record an estimatedafter-tax gain of approximately $25 million, which amount includes a tax benefit. As of September 30, 2017, PacificComp’s total assets were $440.6 million, consisting primarily of debt securities, and PacificComp’s total liabilities were $313.7 million, consisting primarily of loss and loss adjustment expenses (“LAE”) reserves.

Unless the context otherwise requires, references to “Alleghany” include Alleghany together with its subsidiaries.

The accompanying consolidated financial statements include the results of Alleghany and its wholly-owned andmajority-owned subsidiaries and have been prepared in accordance with accounting principles generally accepted in the U.S. (“GAAP”). All material inter-company balances and transactions have been eliminated in consolidation.

The portion of stockholders’ equity, net earnings and accumulated other comprehensive income that is not attributable to Alleghany stockholders is presented on the Consolidated Balance Sheets and the Consolidated Statements of Earnings and Comprehensive Income as noncontrolling interests. Because all noncontrolling interests have the option to sell their ownership interests to Alleghany in the future (generally through 2024), the portion of stockholders’ equity that is not attributable to Alleghany stockholders is presented on the Consolidated Balance Sheets as redeemable noncontrolling interests for all periods presented. During the first nine months of 2017,2018, the noncontrolling interests outstanding were approximately as follows: Bourn & Koch had approximately- 11 percent noncontrolling interests outstanding,percent; Kentucky Trailer had approximately- 21 percent noncontrolling interests outstanding,percent; IPS had approximately 16 percent noncontrolling interests outstanding- 15 percent; Jazwares - 23 percent; and Jazwares had approximately 20 percent noncontrolling interests outstanding. W&W|AFCO Steel had approximately- 20 percent noncontrolling interests outstanding from its April 28, 2017 acquisition date through September 30, 2017.percent.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Alleghany relies on historical experience and on various other assumptions that it believes to be reasonable under the circumstances to make judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ materially from those reported results to the extent that those estimates and assumptions prove to be inaccurate. Changes in estimates are reflected in the Consolidated Statements of Earnings and Comprehensive Income in the period in which the changes are made.

(b) Other Significant Accounting Principles

Alleghany’s significant accounting principles can be found in Note 1 to Notes to Consolidated Financial Statements set forth in Part II, Item 8, “Financial Statements and Supplementary Data” of the 20162017 Form10-K.

(c) Recent Accounting Standards

Recently Adopted

In May 2015,February 2018, the Financial Accounting Standards Board (the “FASB”) issued guidance on certain tax effects caused by the Tax Cuts and Jobs Act of 2017 (the “Tax Act”), which was signed into law on December 22, 2017. The Tax Act, among other things, reduced the U.S. corporate federal income tax rate from 35.0 percent to 21.0 percent, effective January 1, 2018 for the 2018 tax year. Under such circumstances, GAAP requires that requires disclosures relatedthe value of deferred tax assets and liabilities be reduced through tax expense. The new guidance provides an option to short-duration insurance contracts. The guidance appliesreclassify any stranded tax amounts that remain in accumulated other comprehensive income to property and casualty insurance and reinsurance entities, among others, and requiresretained earnings, either retrospectively or at the following annual disclosure related to the liability for loss and LAE: (i) net incurred and paid claims development information by accident year for up to ten years; (ii) a reconciliation of incurred and paid claims development information to the aggregate carrying amountbeginning of the liability for loss and LAE; (iii) liabilities for losses that have been incurred but not yet reported by accident year andperiod in total; (iv) a description of reserving methodologies (as well as any changes to those methodologies); (v) quantitative information about claim frequency by accident year; and (vi)which the average annual percentage payout of incurred claims by age and accident year. In addition, the guidance also requires insurance entities to disclose for annual and interim reporting periods a roll-forward of the liability for loss and LAE.adoption is elected. This guidance wasbecame effective in the first quarter of 2018 for annual periods beginning after December 15, 2015 and interim periods within annual periods beginning after December 15, 2016,public entities, with early adoption permitted.permitted in 2017. Alleghany adopted this new guidance in the first quarter of 2018 and has elected to reclassify stranded tax amounts that remain in accumulated other comprehensive income, in the amount of approximately $135 million, to retained earnings as of December 31, 2016 and the implementation did not have an impact on its results of operations and financial condition.January 1, 2018. See Note 57(b) of this Form10-Q for further information on accumulated other comprehensive income, and see Note 1(k) and Note 69 to Notes to Consolidated Financial Statements set forth in Part II, Item 8, “Financial Statements and Supplementary Data” of the 20162017 Form10-K for additional information on the new disclosures.Tax Act and its impact on Alleghany.

Future ApplicationIn March 2017, the FASB issued guidance that reduces the amortization period for the premium on certain purchased callable debt securities to the earliest call date. The guidance applies specifically to noncontingent call features that are callable at a predetermined and fixed price and date. The accounting for purchased callable debt securities held at a discount is not affected. This guidance is effective in the first quarter of Accounting Standards2019 for public entities with early adoption permitted. Alleghany adopted this guidance in the fourth quarter of 2017 and recorded a cumulative effect reduction of approximately $13 million directly to opening 2017 retained earnings and an offsetting increase in opening 2017 accumulated other comprehensive income. The implementation did not have a material impact on Alleghany’s results of operations and financial condition. See Note 7(b) of this Form 10-Q for further information on accumulated other comprehensive income.

In May 2014, the FASB, together with the International Accounting Standards Board, issued guidance on the recognition of revenue from contracts with customers. Under this guidance, revenue is recognized as the transfer of goods and services to customers takes place and in amounts that reflect the payment or payments that are expected to be received from the customers for those goods and services. This guidance also requires new disclosures about revenue. Revenues related to insurance and reinsurance contracts and revenues from investments are not impacted by this guidance, whereas noninsurance revenues arising from the sale of manufactured goods and services is generally included within the scope of this guidance. This guidance, isand all related amendments, became effective in the first quarter of 2018 for public entities, with early adoption permitted in 2017. Alleghany will adoptadopted this guidance in the first quarter of 2018 using the modified retrospective transition approach and does not currently believe that the implementation willdid not have a material impact on its results of operations and financial condition. See Note 10 of this Form10-Q for further information on Alleghany’s noninsurance revenues.

In January 2016, the FASB issued guidance that changes the recognition and measurement of certain financial instruments. This guidance requires investments in equity securities (except those accounted for under the equity method of accounting)accounting, but including partnership investments not accounted for under the equity method) to be measured at fair value with changes in fair value recognized in net income.earnings. For equity securities that do not have readily determinable fair values, measurement may be at cost, adjusted for any impairment and changes resulting from observable price changes for a similar investment of the same issuer. This guidance also changes the presentation and disclosure of financial instruments by: (i) requiring that financial instrument disclosures of fair value use the exit price notion; (ii) requiring separate presentation of financial assets and financial liabilities by measurement category and form, either on the balance sheet or the accompanying notes to the financial statements; (iii) requiring separate presentation in other comprehensive income for the portion of the change in a liability’s fair value resulting

from instrument-specific credit risk when an election has been made to measure the liability at fair value; and (iv) eliminating the requirement to disclose the methods and significant assumptions used to estimate the fair value for financial instruments measured at amortized cost on the balance sheet. This guidance is effective for fiscal years beginning after December 15, 2017 for public entities, including interim periods within those fiscal years. Except for the change in presentation for instrument-specific credit risk, this guidance does not permit early adoption. Alleghany will adoptadopted this guidance in the first quarter of 2018. As of January 1, 2018, approximately $736 million of net unrealized gains or losses of equity securities, net of deferred taxes, will bewere reclassified from accumulated other comprehensive income to retained earnings. Subsequently, all changes in unrealized gains or losses of equity securities, net of deferred taxes, will bewere presented in the Consolidated Statements of Earnings rather than the Consolidated Statements of Comprehensive Income. Alleghany doesIncome, under the caption “change in the fair value of equity securities.” Results arising from partnership investments, whether accounted for under the equity method or at fair value, continue to be reported as a component of net investment income. The implementation did not currently believe that the implementation will have a material impact on itsAlleghany’s financial condition. See Note 3(a)3 of this Form10-Q for further information on Alleghany’s unrealized gainsequity securities, and lossesNote 7(b) of equity securities.this Form 10-Q for further information on accumulated other comprehensive income.

Future Application of Accounting Standards

In February 2016, the FASB issued guidance on leases. Under this guidance, a lessee is required to recognize lease liabilities and correspondingright-of-use assets for leases with terms of more than one year, whereas under current guidance, a lessee is only required to recognize assets and liabilities for those leases qualifying as capital leases. This guidance also requires new disclosures about the amount, timing and uncertainty of cash flows arising from leases. The accounting by lessors is to remain largely unchanged. This guidance is effective in the first quarter of 2019 for public entities, with early adoption permitted. A modified retrospective transition approach is required for all leases in existence as of, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Alleghany will adopt this guidance in the first quarter of 2019 and does not currently believe that the implementation will have a material impact on its results of operations and financial condition. See Note 12(b) to Notes to Consolidated Financial Statements set forth in Part II, Item 8, “Financial Statements and Supplementary Data” of the 20162017 Form10-K for further information on Alleghany’s leases.

In June 2016, the FASB issued guidance on credit losses. Under this guidance, a company is required to measure all expected credit losses on loans, reinsurance recoverables and other financial assets accounted for at cost or amortized cost, as applicable. Estimates of expected credit losses are to be based on historical experience, current conditions and reasonable and supportable forecasts. Credit losses for securities accounted for on anavailable-for-sale (“AFS”) basis are to be measured in a manner similar to GAAP as currently applied and cannot exceed the amount by which the fair value is less than the amortized cost. Credit losses for all financial assets are to be recorded through an allowance for credit losses. Subsequent reversals in credit loss estimates are permitted and are to be recognized in earnings. This guidance also requires new disclosures about the significant estimates and judgments used in estimating credit losses, as well as the credit quality of financial assets. This guidance is effective in the first quarter of 2020 for public entities, with early adoption permitted. Alleghany will adopt this guidance in the first quarter of 2020 and does not currently believe that the implementation will have a material impact on its results of operations and financial condition.

In January 2017, the FASB issued guidance that simplifies the subsequent measurement of goodwill. Under this guidance, if an initial qualitative assessment indicates that the fair value of an operating subsidiary may be less than its carrying amount, an impairment charge is recognized for the amount by which the carrying amount of the operating subsidiary exceeds its estimated fair value. Any resulting impairment loss recognized cannot exceed the total amount of goodwill associated with the operating subsidiary. This guidance is effective in the first quarter of 2020 for public entities, with early adoption permitted. Alleghany will adopt this guidance in the first quarter of 2020 and does not currently believe that the implementation will have a material impact on its results of operations and financial condition.

In March See Note 2 to Notes to Consolidated Financial Statements set forth in Part II, Item 8, “Financial Statements and Supplementary Data” of the 2017 the FASB issued guidance that reduces the amortization periodForm 10-K for the premiumfurther information on certain purchased callable debt securities to the earliest call date. The guidance applies specifically to noncontingent call features that are callable at a predetermined and fixed price and date. The accounting for purchased callable debt securities held at a discount is not affected. This guidance is effective in the first quarter of 2019 for public entities, with early adoption permitted. Alleghany will adopt this guidance in the fourth quarter of 2017, and will record a cumulative effect reduction directly to opening 2017 retained earnings and an offsetting increase in opening 2017 accumulated other comprehensive income at that time. Alleghany does not currently believe that the implementation will have a material impact on its results of operations and financial condition.Alleghany’s goodwill.

In August 2017, the FASB issued guidance that simplifies the requirements to achieve hedge accounting, better reflects the economic results of hedging in the financial statements and better alignsimproves the alignment between hedge accounting withand a company’s risk management activities. This guidance is effective in the first quarter of 2019 for public entities, with early adoption permitted. Alleghany will adopt this guidance in the first quarter of 2019 and does not currently believe that the implementation will have a material impact on its results of operations and financial condition.

In August 2018, the FASB issued guidance that changes the financial statement disclosure requirements for measuring fair value. With respect to financial instruments classified as “Level 3” in the fair value disclosure hierarchy, the guidance requires certain additional disclosures for public entities related to amounts included in other comprehensive income and significant unobservable inputs used in the valuation, while removing disclosure requirements related to an entity’s overall valuation processes. The guidance also removes certain disclosure requirements related to transfers between financial instruments classified as “Level 1” and “Level 2” and provides clarification on certain other existing disclosure requirements. This guidance is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted with respect to any eliminated or modified disclosures. Alleghany will adopt this guidance in the first quarter of 2020 and does not currently believe that the implementation will have a material impact on its results of operations and financial condition.

2. Fair Value of Financial Instruments

The following table presents the carrying value and estimated fair value of Alleghany’s consolidated financial instruments as of September 30, 20172018 and December 31, 2016:2017:

The following tables present Alleghany’s financial instruments measured at fair value and the level of the fair value hierarchy of inputs used as of September 30, 20172018 and December 31, 2016:2017:

		Level 1				Level 2				Level 3				Total
		($ in millions)
As of December 31, 2016
Equity securities:
Common stock		$	3,105.2			$	-			$	4.3			$	3,109.5
Preferred stock			-				-				-				-
Total equity securities			3,105.2				-				4.3				3,109.5
Debt securities:
U.S. Government obligations			-				1,243.3				-				1,243.3
Municipal bonds			-				4,185.8				-				4,185.8
Foreign government obligations			-				1,047.1				-				1,047.1
U.S. corporate bonds			-				2,120.2				72.9				2,193.1
Foreign corporate bonds			-				1,088.4				0.4				1,088.8
Mortgage and asset-backed securities:
RMBS(1)			-				994.5				5.9				1,000.4
CMBS			-				730.5				4.3				734.8
Other asset-backed securities(2)			-				586.1				903.8				1,489.9
Total debt securities			-				11,995.9				987.3				12,983.2
Short-term investments			-				778.4				-				778.4
Other invested assets(3)			-				-				28.1				28.1
Total investments (excluding equity method investments and  loans)		$	3,105.2			$	12,774.3			$	1,019.7			$	16,899.2
Senior Notes and other debt		$	-			$	1,491.5			$	92.8			$	1,584.3

As further described in Note 3(h), on March 15, 2018, most of AIHL’s limited partnership interests in certain subsidiaries of Ares Management LLC (“Ares”) were converted into Ares common units. As a result of the conversion, as of March 15, 2018, $208.2 million of Ares common units, classified as equity securities, was transferred into Level 1, and $58.7 million of Ares limited partner interests, classified as other invested assets, was transferred into Level 3. On September 24, 2018, AIHL’s remaining $56.9 million of Ares limited partner interests were converted into Ares common units and, as a result, was transferred from Level 3 other invested assets into Level 1 common stocks.

Aside from the $56.9 million of Ares-related other invested assets transferred out of Level 3, in the nine months ended September 30, 2018, Alleghany transferred out of Level 3 an additional $153.7 million of financial instruments, principally due to an increase in observable inputs related to the valuation of such assets. Specifically, during the first nine months of 2018, there was a decrease in the weight given tonon-binding broker quotes, and as such, there was a corresponding increase in quoted prices for similar assets in active markets. Of the $153.7 million of transfers, $150.6 million related to RMBS, $1.6 million related to CMBS, $1.3 million related to U.S. corporate bonds and $0.2 million related to foreign corporate bonds.

In addition to the $58.7 million of Ares-related other invested assets transferred into Level 3, in the nine months ended September 30, 2018, Alleghany transferred into Level 3 $5.6 million of financial instruments, principally due to a decrease in observable inputs related to the valuation of such assets and, specifically, a decrease in broker quotes. Of the $5.6 million of transfers, $4.4 million related to preferred stock and $1.2 million related to U.S. corporate bonds. There were no other material transfers between Levels 1, 2 or 3 in the three and nine months ended September 30, 2018.

In the nine months ended September 30, 2017, Alleghany transferred out of Level 3 $7.2 million of financial instruments, out of Level 3 principally due to an increase in observable inputs related to the valuation of such assets and, specifically, an increase in broker quotes. Of the $7.2 million of transfers, $4.8 million related to U.S. corporate bonds and $2.4 million related to common stock. There were no transfers of financial instruments out of Level 3 in the third quarter of 2017.

In the three and nine months ended September 30, 2017, Alleghany transferred into Level 3 $0.8 million and $5.5 million, respectively, of financial instruments, into Level 3 principally due to a decrease in observable inputs related to the valuation of such assets and, specifically, a decrease in broker quotes. Of the $5.5 million of transfers, $3.8 million related to U.S. corporate bonds, $1.4 million related to common stock and $0.3 million related to foreign corporate bonds. There were no other material transfers between Levels 1, 2 or 3 in the three and nine months ended September 30, 2017.

In the three and nine months ended September 30, 2016, Alleghany transferred $5.1 million and $5.4 million, respectively, of debt securities out of Level 3 principally due to an increase in observable inputs related to the valuation of such assets and, specifically, an increase in broker quotes. Of the $5.4 million of transfers, $5.1 million related to U.S. corporate bonds and $0.3 million related to other invested assets.

In the three and nine months ended September 30, 2016, Alleghany transfered $5.7 million and $8.4 million, respectively, of securities into Level 3 principally due to a decrease in observable inputs related to the valuation of such assets, and specifically, a decrease in broker quotes. Of the $8.4 million of transfers, $5.5 million related to U.S. corporate bonds, $1.9 million related to foreign corporate bonds and $1.0 million related to common stock. There were no other material transfers between Levels 1, 2 or 3 in the three and nine months ended September 30, 2016.

The following tables present reconciliations of the changes during the nine months ended September 30, 20172018 and 20162017 in Level 3 assets measured at fair value: