Owners of Berkshire Hathaway Inc Del Cl A in Q4 2020

Owners of Berkshire Hathaway Inc Del Cl A in Q4 2020
NameSharesValueWeighting ↓
NORTHWESTERN UNIVERSITY 416$144,69197.87%
Punch Card Capital 349$121,38740.46%
FIRST MANHATTAN CO 14,525$5,052,01224.18%
ALLEN HOLDING INC /NY 375$130,43122.29%
WATER STREET CAPITAL INC 503$174,95118.16%
ARMSTRONG HENRY H ASSOCIATES INC 360$125,21316.49%
HUTNER CAPITAL MANAGEMENT INC 55$19,13013.32%
SEMPER AUGUSTUS INVESTMENTS GROUP LLC 85$29,56412.93%
HARTLINE INVESTMENT CORP/ 252$87,64912.57%
ELKHORN PARTNERS LIMITED PARTNERSHIP 50$17,39111.60%
TWEEDY BROWNE CO LLC// 999$347,46710.80%
Gardner Russo & Gardner 3,419$1,189,17910.79%
Well Done, LLC 119$41,39010.24%
International Value Advisers 175$60,8689.90%
EVERETT HARRIS & CO/CA 1,441$501,2018.86%
Weitz Investment Management 558$194,0818.27%
Lincoln Capital 69$23,9997.80%
Cable Hill Partners, LLC 75$26,0867.11%
ARMSTRONG SHAW ASSOCIATES INC/CT 20$6,9566.82%
TIMUCUAN ASSET MANAGEMENT INC/FL 370$128,6926.58%
Aquamarine Capital Management 30$10,4346.09%
Markel Corporation 1,114$387,4665.77%
RBF Capital, LLC 212$73,7375.64%
WELLCOME TRUST LTD (THE) as trustee of the WELLCOME TRUST 1,300$452,1604.62%
DAVIS SELECTED ADVISERS 2,581$897,7114.32%
SAYBROOK CAPITAL /NC 36$12,5214.01%
GENERAL AMERICAN INVESTORS CO INC 110$38,2603.78%
BRANDYWINE TRUST CO 29$10,0873.52%
TDAM USA INC. 154$53,5643.36%
BRIDGES INVESTMENT MANAGEMENT INC 309$107,4743.31%
COLONY GROUP INC /MA/ 402$139,8223.23%
SECURITY NATIONAL BANK OF SIOUX CITY IOWA /IA/ 9$3,1312.68%
AR ASSET MANAGMENT INC 18$6,2612.02%
HARVEY INVESTMENT CO LLC 40$13,9131.96%
LAWSON KROEKER INVESTMENT MANAGEMENT INC/NE 15$5,2171.96%
FENIMORE ASSET MANAGEMENT INC 199$69,2151.94%
WHITTIER TRUST CO 259$90,0841.92%
SCHULHOFF & CO INC 11$3,8251.92%
PUZO MICHAEL J 16$5,5651.82%
Pictet & Cie (Europe) SA 106$36,8681.81%
HENNESSY ADVISORS INC 78$27,1301.74%
VALLEY FORGE INVESTMENT CONSULTANTS INC ADV 5$1,7391.51%
CAMBRIDGE TRUST CO 86$29,9121.42%
WASHINGTON TRUST BANK 29$10,0871.32%
PITCAIRN CO 46$15,9991.22%
BIRINYI ASSOCIATES INC 9$3,1301.16%
WALTER & KEENAN FINANCIAL CONSULTING CO /MI/ /ADV 9$3,1301.13%
S. MUOIO & CO. LLC 3$1,0431.13%
GLUSKIN SHEFF & ASSOC INC 47$16,3471.12%
FIRST CITIZENS BANK & TRUST CO 63$21,9131.12%
HOVEY YOUNGMAN ASSOCIATES INC 24$8,3481.11%
Oliver Luxxe Assets LLC 10$3,5011.09%
BROWN BROTHERS HARRIMAN & CO 469$163,1251.09%
AUGUSTINE ASSET MANAGEMENT INC 6$2,0871.08%
VONTOBEL USA INC/NY 521$181,2101.07%
SANTA MONICA PARTNERS LP 4$1,3911.03%
ROBERTS GLORE & CO INC /IL/ 9$3,1301.02%
MOSELEY INVESTMENT MANAGEMENT INC 5$1,7391.01%
BARR E S & CO 33$11,4781.00%
CHECK CAPITAL MANAGEMENT INC/CA 52$18,0870.99%
FMR CORP 31,184$10,846,2630.96%
SIRIOS CAPITAL MANAGEMENT L P 35$12,1740.95%
US BANCORP \DE\ 1,175$408,6830.88%
PITTENGER & ANDERSON INC 44$15,3040.87%
FIRST NATIONAL BANK SIOUX FALLS 1$3480.76%
ASHFORD CAPITAL MANAGEMENT INC 22$7,6520.74%
Community Bank & Trust, Waco, Texas 6$2,0870.74%
SANDERS MORRIS HARRIS INC/FA 9$3,1790.72%
Nicholas Hoffman & Company, LLC. 9$3,1300.72%
SMITHFIELD TRUST CO 28$9,7390.71%
CARRET & CO LLC 15$5,2170.70%
First PREMIER Bank 5$1,7390.69%
UNION BANKSHARES CORP 19$6,6090.69%
PACIFIC GLOBAL INVESTMENT MANAGEMENT CO 9$3,1300.69%
KARPAS STRATEGIES, LLC 5$1,7390.68%
CANNELL PETER B & CO INC 54$18,7820.62%
DIMENSION CAPITAL MANAGEMENT PARTNERS /ADV 6$2,0870.60%
NORRIS PERNE & FRENCH LLP/MI 18$6,2610.59%
SYNOVUS FINANCIAL CORP 143$49,7380.57%
PNC FINANCIAL SERVICES GROUP INC 1,607$558,9390.56%
NATIONS FINANCIAL GROUP INC, /IA/ /ADV 6$2,0870.55%
FAYEZ SAROFIM & CO 410$142,6040.55%
GABELLI FUNDS LLC 221$76,8670.55%
AVIVA PLC 296$102,9530.54%
Kelman-Lazarov, Inc. 4$1,3910.53%
INTRUST BANK NA 10$3,4780.53%
Canal Capital Management, LLC 4$1,3910.52%
PARK NATIONAL CORP /OH/ 31$10,7820.51%
PEAPACK GLADSTONE FINANCIAL CORP 48$16,6950.50%
FOSTER DYKEMA CABOT & CO INC/MA 10$3,4780.49%
LLBH Private Wealth Management, LLC 7$2,4350.48%
CI INVESTMENTS INC. 314$109,2140.48%
PRIVATE MANAGEMENT GROUP INC 27$9,3910.48%
FIRST NATIONAL BANK OF OMAHA 25$8,6960.47%
DAVIDSON D A & CO/MT 88$30,6050.47%
FOLGER NOLAN FLEMING DOUGLAS INC 10$3,4780.46%
BOURNE LENT ASSET MANAGEMENT INC 4$1,3910.46%
WEDGEWOOD INVESTORS INC /PA/ 1$3480.45%
MOGY JOEL R INVESTMENT COUNSEL INC 13$4,5220.45%
BEESE FULMER INVESTMENT MANAGEMENT, INC. 10$3,4780.44%
WOODARD & CO ASSET MANAGEMENT GROUP INC /ADV 2$6960.43%
PARTHENON CAPITAL MANAGEMENT LLC/KY 7$2,4350.42%
WIMMER ASSOCIATES 1, LLC 2$6960.42%
SHUFRO ROSE EHRMAN 14$4,8690.41%
ELIAS ASSET MANAGEMENT INC/ 8$2,7830.40%
HOWLAND CAPITAL MANAGEMENT INC 19$6,6080.39%
SMITH CHAS P & ASSOCIATES PA CPAS 11$3,8260.38%
FIRST NATIONAL CORP /MA/ /ADV 400$1,3910.38%
Sheaff Brock Investment Advisors, LLC 13$4,5220.38%
ROPES WEALTH ADVISORS LLC 7$2,4350.38%
EXCALIBUR MANAGEMENT CORP 2$6960.37%
Jackson, Grant Investment Advisers, Inc. 2$6960.36%
FIRST MIDWEST TRUST CO 7$2,4350.35%
Terra Nova Asset Management LLC 1$3480.35%
RBO & CO LLC 5$1,7390.35%
HM PAYSON & CO 35$12,1740.34%
EATON VANCE MANAGEMENT 1,148$399,2920.32%
SECURITY NATIONAL BANK OF SO DAK 1$3480.31%
GOFEN & GLOSSBERG LLC /IL/ 32$11,1300.30%
NEVILLE RODIE & SHAW INC 10$3,4780.30%
Manitou Investment Management Ltd. 4$1,3910.30%
CWA Asset Management Group, LLC 8$2,7830.29%
HARVEY CAPITAL MANAGEMENT INC 2$6950.28%
STATE TREASURER STATE OF MICHIGAN 116$40,3470.28%
HOME FEDERAL BANK OF TENNESSEE 2$6960.28%
Jacobi Capital Management LLC 5$1,7390.27%
YACKTMAN ASSET MANAGEMENT CO/IL 63$21,9120.27%
RITTENHOUSE TRUST CO 54$18,7820.27%
ENTERBANK HOLDINGS INC 4$1,3910.26%
TANDEM CAPITAL MANAGEMENT CORP /ADV 1$3480.26%
CLIFFORD ASSOCIATES LLC 17$5,9130.26%
Harfst & Associates, Inc. 2$6950.26%
VESTOR CAPITAL, LLC 6$2,0870.25%
BLACKHILL CAPITAL INC 6$2,0870.25%
HALL CAPITAL MANAGEMENT CO INC 1$3480.25%
ROYAL LONDON ASSET MANAGEMENT LTD 137$47,6940.25%
BURKE & HERBERT BANK & TRUST CO 1$3480.25%
COMPASS CAPITAL MANAGEMENT INC/ 8$2,7830.24%
SENTINEL TRUST CO LBA 4$1,3910.24%
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 890$309,5550.24%
FIRST FOUNDATION ADVISORS 15$5,2170.23%
WILBANKS SMITH & THOMAS ASSET MANAGEMENT INC/VA 14$4,8690.23%
INGALLS & SYNDER LLC 13$4,5220.22%
SPINNAKER TRUST 8$2,7820.22%
BLUESTEIN R H & CO 14$4,8690.22%
V Wealth Management,LLC 3$1,0440.22%
MONTAG A & ASSOCIATES INC 10$3,4780.21%
Giverny Capital 8$2,7830.21%
WADE G W & INC 10$3,4780.21%
KLINGENSTEIN FIELDS & CO LLC 13$4,5210.20%
Avenir Corp 6$2,0870.20%
ASSET MANAGEMENT CORP /IL/ /ADV 1$3500.20%
CADINHA & CO INC /HAWAII 4$1,3910.19%
FIRST INTERSTATE BANK 4$1,3910.19%
GUARANTY TRUST CO OF MISSOURI /MO/ 13$4,5220.18%
OLD NATIONAL BANCORP /IN/ 12$4,1740.18%
GABELLI FUNDS INC ET AL 52$18,0860.17%
MEANS INVESTMENT CO., INC. 2$7230.16%
MIDDLETON & CO INC/MA 4$1,3910.16%
SALEM INVESTMENT COUNSELORS INC 7$2,4350.16%
M&R CAPITAL MANAGEMENT INC 2$6950.16%
LEGAL & GENERAL GROUP PLC 1,133$394,0770.15%
COMMONWEALTH EQUITY SERVICES, INC. 146$50,7800.15%
Front Street Capital Management, Inc. 2$6960.15%
SECURITY ASSET MANAGEMENT /NY 1$3480.15%
OSTERWEIS CAPITAL MANAGEMENT INC 7$2,4350.15%
STONEBRIDGE CAPITAL MANAGEMENT INC 1$3480.14%
BECK MACK & OLIVER LLC 12$4,1740.14%
Fiduciary Group LLC 3$1,0430.14%
TRUST CO OF TOLEDO NA /OH/ 2$6960.14%
HENDLEY & CO INC 1$3480.13%
CONNING CORP 12$4,1740.13%
Integrated Investment Consultants, LLC 1$3480.13%
FINANCIAL COUNSELORS INC 15$5,2170.13%
Cornerstone Wealth Management, LLC 3$1,0430.13%
Harwood Advisory Group, LLC 2$6950.13%
EQUITABLE TRUST CO 5$1,7390.13%
EVEANS BASH MAGRINO & KLEIN INC 5$1,7390.13%
HORIZON ASSET MANAGEMENT INC/NY 11$3,8260.13%
Clearstead Advisors, LLC 4$1,3910.13%
SHIKIAR ASSET MANAGEMENT INC 1$3480.13%
TOMPKINS TRUSTCO INC 2$6960.13%
Wealthcare Advisory Partners LLC 4$1,3910.12%
Edmonds Duncan Registered Investment Advisors, LLC 1$3670.12%
CAPITAL CITY TRUST CO/FL 1$3480.12%
BLAIR WILLIAM & CO/IL 95$33,0420.12%
PARSONS CAPITAL MANAGEMENT INC/RI 4$1,3910.12%
Baird Financial Group, Inc. 115$39,9990.12%
Mosaic Family Wealth, LLC 1$3480.12%
GREEN SQUARE CAPITAL LLC 1$3480.11%
MONARCH CAPITAL MANAGEMENT INC/ 1$3480.11%
FIDUCIARY TRUST CO 15$5,2170.11%
ASSOCIATED BANC-CORP 8$2,7820.11%
GIRARD PARTNERS LTD. 2$6950.11%
COLDSTREAM CAPITAL MANAGEMENT INC 5$1,7390.10%
GLENMEDE TRUST CO 54$18,7810.10%
FIRST NATIONAL CORP /SC/ 3$1,0430.10%
20/20 Capital Management, Inc. 1$3500.10%
MAINSTAY CAPITAL MANAGEMENT LLC /ADV 1$3480.10%
BEACH INVESTMENT COUNSEL INC/PA 3$1,0430.10%
AMERITAS INVESTMENT ADVISORS INC 6$2,0860.10%
CYPRESS CAPITAL MANAGEMENT LLC 2$6960.09%
CRAWFORD INVESTMENT COUNSEL INC 11$3,8260.09%
DAVENPORT & CO OF VIRGINIA INC 27$9,3910.09%
HSBC HOLDINGS PLC 192$66,6800.09%
STIFEL FINANCIAL CORP 143$49,7390.09%
BRISTOL JOHN W & CO INC /NY/ 12$4,1740.09%
BERRY HARTELL EVERS & OSBORNE INC/ 2$6960.09%
TREES FRONT ASSOCIATES INC 2$6960.08%
WEBSTER TRUST CO NA 2$6960.08%
BOSTON FAMILY OFFICE LLC 3$1,0430.08%
MID ATLANTIC FINANCIAL MANAGEMENT INC /ADV 3$1,0430.08%
FIFTH THIRD BANCORP 46$15,9990.08%
LAIRD NORTON TRUST COMPANY 2$6960.08%
MEEDER R & ASSOCIATES INC 1$3480.08%
BNP PARIBAS ARBITRAGE, SA 116$40,346,5400.08%
LEE DANNER & BASS INC/ 2$6960.07%
SEGALL BRYANT & HAMILL 19$6,6110.07%
INSTITUTIONAL & FAMILY ASSET MANAGEMENT, LLC 1$3480.07%
BOKF, NA 11$3,8260.07%
CITY HOLDING CO 1$3480.07%
PALISADE CAPITAL MANAGEMENT LLC/NJ 8$2,7830.07%
Kovitz Investment Group Partners, LLC 8$2,7830.07%
AMERITAS INVESTMENT CORP 1$3480.07%
WASHINGTON TRUST Co 6$2,0870.07%
ROTHSCHILD INVESTMENT CORP /IL 2$6960.07%
SEAWARD MANAGEMENT CORP 5$1,7390.07%
Advisor Group Holdings, Inc. 70$24,3460.07%
SMITH, MOORE & CO. 1$3480.06%
SCHWERIN BOYLE CAPITAL MANAGEMENT INC 2$6960.06%
BRADLEY FOSTER & SARGENT INC/CT 7$2,4350.06%
HARDESTY CAPITAL MANAGEMENT CORP 1$3470.06%
BANK OF MONTREAL /CAN/ 271$94,8630.06%
SHEER ASSET MANAGEMENT 2$8700.06%
PEKIN SINGER STRAUSS ASSET MANAGEMENT /IL 1$3480.06%
BADGLEY PHELPS & BELL INC 4$1,3910.06%
BB&T CORP 93$32,3460.06%
LVM CAPITAL MANAGEMENT LTD/MI 1$3480.06%
STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 147$51,1290.06%
TRUE Private Wealth Advisors 1$3470.06%
FIRST AMERICAN TRUST, FSB 1$3480.06%
MERCER GLOBAL ADVISORS INC /ADV 13$4,5220.06%
PROFESSIONAL ADVISORY SERVICES INC 100$3480.06%
TRUST CO OF VERMONT 2$6960.06%
Simmons Bank 2$6960.06%
DOWDLE JEFFREY A 144$50,0850.05%
AMERICAN CENTURY COMPANIES INC 200$69,5630.05%
RAYMOND JAMES TRUST CO 4$1,3910.05%
FARR MILLER & WASHINGTON LLC/DC 2$6960.05%
FORBES J M & CO LLP 1$3480.05%
Laurel Wealth Advisors, Inc. 1$3480.05%
FERGUSON WELLMAN RUDD PURDY & VAN WINKLE INC 6$2,0870.05%
NORTH AMERICAN MANAGEMENT CORP 1$347,8150.05%
BerganKDV Wealth Management, LLC 1$3480.05%
UNIONBANCAL CORP 8$2,7830.05%
BEACON INVESTMENT ADVISORY SERVICES, INC. 3$1,0430.05%
GAMBLE JONES MORPHY & BENT 2$6960.05%
BOSTON FINANCIAL MANGEMENT INC /MA 3$1,0430.05%
EDGAR LOMAX CO/VA 2$6960.05%
NORTHERN OAK WEALTH MANAGEMENT INC 1$3480.05%
TORONTO DOMINION BANK 72$24,8380.05%
THOMPSON SIEGEL &WALMSLEY INC 8$2,7830.04%
ZB,N.A. 1$3480.04%
STEPHENS INC /AR/ 7$2,4350.04%
FAHNESTOCK & CO INC 6$2,0620.04%
MAI Capital Management 5$1,7390.04%
Cardan Capital Partners, LLC 1$3480.04%
WENDELL DAVID ASSOCIATES INC 1$3480.04%
TRUST CO OF VIRGINIA /VA 1$3480.04%
BANK OF AMERICA CORP /DE/ 917$318,9460.04%
CAPITAL COUNSEL LLC/NY 2$6960.04%
WEALTHSOURCE PARTNERS, LLC 1$3480.04%
GREAT WEST LIFE ASSURANCE CO /CAN/ 62$21,5100.04%
NWAM LLC 1$3480.04%
MORGAN STANLEY DEAN WITTER & CO 735$255,6440.04%
PARAMETRIC PORTFOLIO ASSOCIATES LLC 174$60,5200.04%
COURIER CAPITAL CORP 1$3480.04%
LOWE BROCKENBROUGH & CO INC 1$3480.04%
Venturi Wealth Management, LLC 1$3480.04%
MASSMUTUAL TRUST CO FSB/ADV 2$6960.04%
FIRST NATIONAL BANK NORTH DAKOTA 1$3480.04%
WELLS FARGO & CO/MN 422$146,7780.04%
CHARTER TRUST CO 1$3480.03%
COMMERCE BANK N A/MO 12$4,1730.03%
PUTNAM FL INVESTMENT MANAGEMENT CO 2$6960.03%
CULLEN FROST BANKERS INC 4$1,3920.03%
M&T BANK CORP 21$7,3040.03%
BESSEMER GROUP INC 35$12,1730.03%
SCHWARTZ INVESTMENT COUNSEL INC 2$6960.03%
ROYAL BANK OF CANADA 306$106,4310.03%
COMERICA BANK 13$4,5580.03%
DF DENT & CO INC 7$2,4350.03%
Fairholme Capital Management 1$3480.03%
LINCOLN NATIONAL CORP 3$1,0430.03%
Cetera Investment Advisers 4$1,3910.03%
KING LUTHER CAPITAL MANAGEMENT CORP 14$4,8690.03%
MAIRS & POWER INC 7$2,4350.03%
BRINSON PARTNERS INC/IL 165$57,389,4750.03%
BERKSHIRE ASSET MANAGEMENT LLC/PA 1$3480.03%
BAHL & GAYNOR INC 12$4,1740.03%
STOCK YARDS BANK & TRUST CO 1$3480.03%
MONETA GROUP INVESTMENT ADVISORS LLC 1$3480.03%
ST GERMAIN D J CO INC 1$3480.02%
EAGLE CAPITAL MANAGEMENT LLC 22$7,6520.02%
LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS /MA 6$2,0870.02%
TOCQUEVILLE ASSET MANAGEMENT LP 4$1,3910.02%
JOHNSON INVESTMENT COUNSEL INC 4$1,3910.02%
VANGUARD GROUP INC 2,252$783,2800.02%
NORTHERN TRUST CORP 326$113,3870.02%
ALTA CAPITAL MANAGEMENT LLC/ 1$3470.02%
BURNEY CO/ 1$3480.02%
FULTON BANK 1$3480.02%
PAYDEN & RYGEL 1$3480.02%
BECKER CAPITAL MANAGEMENT INC 1$3480.02%
PINNACLE FINANCIAL PARTNERS INC 1$3480.02%
Renaissance Technologies 43$14,9560.02%
FIRST HAWAIIAN BANK 1$3480.02%
ANCHOR CAPITAL ADVISORS INC 2$6960.02%
BAILARD BIEHL & KAISER INC 1$3480.02%
Fairfax Financial Holdings 1$3480.02%
BRYN MAWR TRUST CO/PA 1$3480.01%
FRANKLIN RESOURCES INC 99$34,4340.01%
GOLDMAN SACHS GROUP INC 161$55,9970.01%
PINNACLE ASSOCIATES LTD 2$6960.01%
BARCLAYS PLC 67$23,3040.01%
VAUGHAN DAVID INVESTMENTS INC/IL 1$3480.01%
EDMOND DE ROTHSCHILD HOLDING S.A. 1$3480.01%
DAVIS R M INC 1$3480.01%
CITIGROUP INC 48$16,6950.01%
1832 Asset Management L.P. 12$4,1850.01%
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 11$3,8260.01%
SCHWAB CHARLES INVESTMENT MANAGEMENT INC 62$21,5650.01%
CHASE MANHATTAN CORP /DE/ 140$48,6940.01%
Akre Capital Management 3$1,0430.01%
WAYNE HUMMER MANAGEMENT CO 1$3480.01%
KORNITZER CAPITAL MANAGEMENT INC /KS 1$3480.01%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 12$4,1740.01%
SCHRODER INVESTMENT MANAGEMENT GROUP 24$8,3480.01%
AID ASSOCIATION FOR LUTHERANS 7$2,4350.01%
JONES FINANCIAL COMPANIES LP LLP 8$2,7830.01%
NOMURA ASSET MANAGEMENT CO LTD 2$6960.00%
STATE STREET CORP 213$74,0850.00%
REED CONNER & BIRDWELL INC 5$1,7390.00%
AMERICAN EXPRESS FINANCIAL ADVISORS 33$11,4790.00%
FORT WASHINGTON INVESTMENT ADVISORS INC /HO/ 1$3480.00%
Jarislowsky, Fraser Ltd 2$6950.00%
KAYNE ANDERSON INVESTMENT MANAGEMENT LLC 3$1,0430.00%
Squarepoint Ops LLC 1$3480.00%
Edgewood Management 3$1,0430.00%
MACKENZIE FINANCIAL CORP 2$6960.00%
DODGE & COX 5$1,7390.00%
BAMCO INC /NY/ 1$3480.00%
FISHER INVESTMENTS INC 3$1,0430.00%
BANK OF NOVA SCOTIA 1$3390.00%
Citadel Advisors 8$2,7830.00%
PRICE T ROWE ASSOCIATES INC /MD/ 19$6,6080.00%
ALLIANCE CAPITAL MANAGEMENT L P 3$1,0430.00%
RHUMBLINE ADVISERS 1$3480.00%
DIMENSIONAL FUND ADVISORS INC 3$1,0430.00%
DEUTSCHE BANK AG\ 24$00.00%

This page lists all the filers that owned Berkshire Hathaway Inc Del Cl A in Q4 2020. For a list of filers that in the past have reported owning Berkshire Hathaway Inc Del Cl A, see the History page.