Biggest insider buyers, last 12 months

The directors, officers and 10% owners who bought the most stock in their own companies on the open market in the 12 months to Oct 14, 2026, adding up every Form 4 they filed. From SEC EDGAR. Owners that are funds or holding companies are counted like people, since they file the same form.

Top 100

Click a column heading to sort. Purchases counts each Form 4 once (a filing often lists one trade as many lines). Joint filings of the same trade are counted once, under the first owner named. 49 filings worth more than the company's market value (or over $1 billion where we have none) are left out as likely errors.

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#	Insider	Company	Value bought	Purchases	Latest Form 4
1	Volkswagen US-Holding, Inc.10% owner	Rivian Automotive	$999.9M	1	May 4, 2026
2	William H Gates III10% owner	Republic Services	$953.0M	8	Sep 14, 2026
3	Mitsui Sumitomo Insurance CO Ltd10% owner	W. R. Berkley	$705.5M	20	Mar 3, 2026
4	Sumitomo Mitsui Financial Group, Inc.Director	SEC filer 96223	$676.6M	2	Aug 21, 2026
5	Cascade Investment, L.l.c.10% owner	Republic Services	$629.7M	6	Sep 1, 2026
6	RA Capital Nexus Fund III, L.P.Director	Parabilis Medicines, Inc., Artiva Biotherapeutics, Inc.	$499.2M	3	Jul 28, 2026
7	Berkshire Hathaway IncRole not given	Lennar Corporation	$405.0M	2	Oct 5, 2026
8	GIC Special Investments Pte Ltd10% owner	Medline Inc.	$365.0M	1	Dec 22, 2025
9	Roivant Sciences Ltd.Director, 10% owner	Immunovant, Inc.	$350.0M	1	Dec 12, 2025
10	Jack Jiajia HuangChief Executive Officer, Director, 10% owner	51Talk Online Education Group	$230.2M	23	Aug 21, 2026
11	Nippon Life Insurance CORole not given	Corebridge Financial	$210.9M	23	Oct 14, 2026
12	Warren E Buffett10% owner	Lennar Corporation	$190.3M	2	Sep 30, 2026
13	Blackstone Inc.10% owner	Blackstone Digital Infrastructure Trust Inc.	$189.7M	1	May 19, 2026
14	Conifer Management, L.L.C.10% owner	Group 1 Automotive	$187.3M	6	Sep 30, 2026
15	Qatar Investment Authority10% owner	West Bay BDC LLC	$180.0M	5	Aug 11, 2026
16	Felix BakerDirector, 10% owner	Kymera Therapeutics, Entrada Therapeutics, Inc.	$172.8M	2	Dec 11, 2025
17	John C MaloneRole not given	Atlanta Braves Holdings, Inc., Liberty Capital Corp/NV, Liberty Latin America Ltd. and 1 more	$168.0M	22	Oct 1, 2026
18	Catalyst4, Inc.10% owner	MapLight Therapeutics, Inc.	$157.9M	3	Aug 18, 2026
19	Jeffrey Terry GreenPresident and CEO, Director, 10% owner	Trade Desk	$148.1M	1	Mar 4, 2026
20	Fairfax Financial Holdings Ltd/ Can10% owner	Under Armour	$138.4M	2	Jan 2, 2026
21	Neil MehtaDirector	Coupang	$136.6M	1	Mar 13, 2026
22	BCPE Perseus Investor, LP and 1 joint filer10% owner	Kailera Therapeutics, Inc.	$134.4M	1	Apr 20, 2026
23	A/s Genmab10% owner	Merus N.V.	$132.4M	3	Dec 29, 2025
24	Saba Capital Management, L.P.10% owner	NEW GERMANY FUND INC, ASA Gold & Precious Metals Ltd, Gabelli Healthcare & WellnessRx Trust and 6 more	$125.8M	233	Sep 29, 2026
25	Eric Sprott10% owner	HYCROFT MINING HOLDING CORP	$113.8M	8	Apr 10, 2026
26	Jeffrey C SmithDirector	Kenvue	$111.0M	1	Dec 15, 2025
27	New Mountain Guardian IV Rated Feeder III, Ltd.10% owner	New Mountain Guardian IV BDC, L.L.C., New Mountain Guardian IV Income Fund, L.L.C.	$108.2M	3	Dec 17, 2025
28	Platinum International Investment Holding RSC Ltd10% owner	Jefferies Credit Partners BDC Inc.	$105.0M	2	Jul 27, 2026
29	Mario J GabelliDirector	Lynch Group Holdings Limited, GABELLI DIVIDEND & INCOME TRUST, GABELLI EQUITY TRUST INC and 3 more	$103.6M	15	Feb 25, 2026
30	Paulson & Co. Inc.10% owner	Bausch Health, Thryv, Inc., INTERNATIONAL TOWER HILL MINES LTD	$100.5M	6	Aug 6, 2026
31	Alfred LinDirector	DoorDash	$100.3M	1	Nov 28, 2025
32	Conversant PIF Aggregator A, LPDirector, 10% owner	Sonida Senior Living	$100.0M	1	Mar 13, 2026
33	Gjorgi PopstefanovDirector	Soho House & Co Inc.	$100.0M	1	Feb 2, 2026
34	Harrison Street Real Assets Fund LLC10% owner	SEC filer 1969674	$100.0M	7	Aug 5, 2026
35	Charles A DavisDirector	BETA Technologies, Inc.	$97.0M	1	Nov 7, 2025
36	Carl C Icahn10% owner	Centuri Holdings, Inc., Monro Muffler Brake	$95.8M	3	Nov 14, 2025
37	New Mountain Guardian IV Rated Feeder I, LTD10% owner	New Mountain Guardian IV BDC, L.L.C.	$92.4M	2	Dec 17, 2025
38	Kelcy L WarrenDirector	Energy Transfer Equity	$88.8M	2	Aug 20, 2026
39	RA Capital Management, L.p.Director, 10% owner	Wave Life Sciences, Evommune, Inc., Bicara Therapeutics Inc. and 3 more	$88.5M	8	Jul 22, 2026
40	Watsa V Prem ET AL10% owner	Under Armour	$86.4M	4	May 14, 2026
41	Edward A Mule10% owner	Keenova Therapeutics plc	$84.5M	2	Apr 17, 2026
42	Platinum Falcon B 2018 RSC Ltd10% owner	Senior Credit Investments, LLC, Overland Advantage	$83.4M	3	Mar 6, 2026
43	Ryan CohenPresident, CEO and Chairman, Director	SEC filer 1326380	$78.7M	4	Sep 29, 2026
44	Silver Point Capital L.P.10% owner	Keenova Therapeutics plc, TreeHouse Foods, Inc.	$78.0M	4	May 21, 2026
45	Bitmine Immersion Technologies, Inc.10% owner	Eightco Holdings Inc.	$77.4M	1	Mar 18, 2026
46	IAC Inc.10% owner	MGM Resorts International	$77.1M	2	Mar 25, 2026
47	Nutritional Health LTP Fund General Partner LLC and 1 joint filer10% owner	Generate Biomedicines, Inc.	$75.0M	1	Mar 2, 2026
48	Andrew J. MillsDirector	Medline Inc.	$75.0M	1	Dec 22, 2025
49	Charles N. MillsDirector	Medline Inc.	$74.8M	1	Dec 22, 2025
50	Globalharvest Holdings Venture Ltd10% owner	Mission Produce, Inc.	$74.4M	17	Jul 10, 2026
51	Keith A. MeisterDirector, 10% owner	GeneDx Holdings Corp.	$74.0M	3	May 15, 2026
52	Cynosure Partners 2020, LPDirector, 10% owner	Black Rock Coffee Bar, Inc.	$73.0M	1	May 19, 2026
53	Batista de Lima Filho PedroDirector	AXIA Energia S.A.	$71.8M	11	Sep 23, 2026
54	Forbion Growth Opportunities Fund III Cooperatief U.A.10% owner	Braveheart Bio, Inc.	$64.8M	1	Aug 7, 2026
55	RA Capital Healthcare Fund LPDirector, 10% owner	SpyGlass Pharma, Inc., Climb Bio, Inc., Hemab Therapeutics Holdings, Inc. and 2 more	$63.8M	6	Jul 31, 2026
56	667, L.p.Director, 10% owner	Kodiak Sciences Inc.	$63.4M	1	Sep 30, 2026
57	2176423 Ontario Ltd.10% owner	HYCROFT MINING HOLDING CORP	$62.0M	10	Apr 27, 2026
58	Rajeev M. ShahDirector, 10% owner	Mineralys Therapeutics, Inc., Hemab Therapeutics Holdings, Inc., Artiva Biotherapeutics, Inc.	$61.2M	3	Jul 14, 2026
59	Carl L Gordon and 1 joint filerDirector, 10% owner	ADARx Pharmaceuticals, Inc., Electra Therapeutics, Inc., BlossomHill Therapeutics, Inc. and 1 more	$61.1M	4	Sep 30, 2026
60	Baker Brothers Life Sciences LPDirector, 10% owner	Kodiak Sciences Inc.	$60.0M	1	Dec 19, 2025
61	Prudential Insurance CO OF America10% owner	TORTOISE ENERGY INFRASTRUCTURE CORP	$60.0M	1	Jul 17, 2026
62	Baker Bros. Advisors (GP) LLCDirector, 10% owner	Entrada Therapeutics, Inc., Kodiak Sciences Inc.	$60.0M	2	Sep 30, 2026
63	Meyer MalkaDirector	Robinhood	$55.3M	3	Jun 9, 2026
64	Neal C Bradsher10% owner	STAAR SURGICAL CO, Insight Molecular Diagnostics Inc.	$53.5M	4	Feb 12, 2026
65	CD&R Channel Holdings II, L.P.10% owner	Resideo	$53.0M	1	Nov 13, 2025
66	General Atlantic Partners (Bermuda) IV, L.P. and 1 joint filerDirector, 10% owner	Alkami Technology	$50.6M	1	Mar 11, 2026
67	Hrtg Pv, L.p.10% owner	Kardigan, Inc.	$50.0M	1	Jun 24, 2026
68	Abu Dhabi Pension Fund10% owner	SEC filer 2067955	$50.0M	1	Jun 10, 2026
69	University OF Texas/texas AM Investment Management CO10% owner	Silver Point Specialty Lending Fund	$50.0M	8	May 29, 2026
70	Mahkam Zanganeh and 1 joint filerCo-Chief Executive Officer, Director, 10% owner	Summit Therapeutics	$50.0M	1	Jun 12, 2026
71	Brandon LutnickDirector	Velos Acquisition I Corp., Cantor Fitzgerald Income Trust, Inc.	$49.9M	3	May 6, 2026
72	RBC Global Asset Management (U.S.) Inc.10% owner	SEC filer 2092012	$49.9M	1	May 29, 2026
73	MetLife Investment Management, LLC10% owner	Calamos Global Dynamic Income Fund, Calamos Dynamic Convertible & Income Fund, CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND and 1 more	$48.9M	4	Aug 26, 2026
74	Hanwha Aerospace Co., Ltd.10% owner	NextDecade Corp	$46.7M	9	Dec 15, 2025
75	Coliseum Capital Management, LLC10% owner	MasterCraft Boat Holdings, Inc., Universal Technical Institute, Sonos	$46.4M	4	Mar 11, 2026
76	Hamilton Lane Advisors Llc10% owner	SEC filer 2040278, SEC filer 2027232	$44.1M	2	Sep 30, 2026
77	General Atlantic (SPV) GP, LLC and 1 joint filerDirector, 10% owner	Alkami Technology	$43.8M	2	May 6, 2026
78	Edward P GardenDirector	Middleby Corporation, Fortune Brands Home & Security	$43.7M	4	Jun 11, 2026
79	Kenneth S. CourtisDirector	SEC filer 1704715	$43.3M	15	Sep 8, 2026
80	Bankers Life & Casualty CO10% owner	SEC filer 2066579	$43.0M	7	Sep 16, 2026
81	Msd Capital, L.p.10% owner	5C Lending Partners Corp.	$40.4M	2	Jul 28, 2026
82	Pentwater Capital Management LP10% owner	Avis Budget Group	$40.1M	1	Feb 24, 2026
83	Oleg NodelmanDirector	Aktis Oncology, Inc.	$40.0M	1	Jan 12, 2026
84	Dirkson R CharlesDirector	Loar Holdings Inc., DPC Holdings PLC	$39.8M	2	Jun 26, 2026
85	Crescent Private Credit (QP), a series of BlueArc Core Alternatives, LLC10% owner	Crescent Private Credit Income Corp	$39.2M	1	Dec 3, 2025
86	LIBERTY MUTUAL HOLDING Co INC.10% owner	Willow Tree Capital Corp, 5C Lending Partners Corp.	$38.5M	7	Sep 18, 2026
87	Column Group Opportunity III, LP10% owner	Eikon Therapeutics, Inc.	$38.1M	1	Feb 9, 2026
88	Edward HerringDirector, 10% owner	Summit Midstream Corp	$37.9M	1	Apr 13, 2026
89	Ernest S RadyExecutive Chairman, Director, 10% owner	American Assets Trust, Inc.	$37.7M	21	Sep 16, 2026
90	Bob R SimpsonDirector, 10% owner	TXO Partners, L.P.	$36.6M	9	Aug 13, 2026
91	Andrew Phillips ReedDirector	Figma Inc	$36.5M	1	Feb 24, 2026
92	Avoro Ventures LLCDirector	Scribe Therapeutics, Inc.	$36.3M	1	Jul 28, 2026
93	New Mountain Guardian IV Income Rated Feeder II, Ltd.10% owner	New Mountain Guardian IV Income Fund, L.L.C.	$36.0M	1	Nov 6, 2025
94	Erez ChimovitsDirector	ADARx Pharmaceuticals, Inc., Braveheart Bio, Inc.	$36.0M	2	Sep 30, 2026
95	Julian BakerDirector, 10% owner	Kodiak Sciences Inc.	$35.0M	1	Sep 30, 2026
96	Stephen G PagliucaDirector	Gartner, Norwegian Cruise Line Holdings Ltd.	$34.9M	2	Jun 3, 2026
97	Matthew WilksDirector	FLOTEK INDUSTRIES INC/CN/, ProFrac Holding Corp.	$34.7M	2	Sep 15, 2026
98	Audax Holdings I Llc10% owner	Audax Private Credit Fund, LLC	$34.5M	2	May 11, 2026
99	Jared Isaacman10% owner	Shift4 Payments, Inc.	$33.6M	4	May 13, 2026
100	General Atlantic (AL) SPV, L.P. and 1 joint filerDirector, 10% owner	Alkami Technology	$32.9M	1	May 14, 2026

Showing the top 100 of 1,000. Download all 1,000 as CSV.

Source: SEC EDGAR Form 4, filings through Oct 14, 2026. Value is shares times the reported price for open-market and private trades (codes P and S), common shares only. Lines priced far from the market price (usually a foreign currency or a typing error) are left out.