How many insider purchases were disclosed in March 2026?

808 open-market insider purchases of $50K or more were disclosed across 377 companies by 506 distinct insiders in SEC Form 4 filings during March 2026, totaling $1.3B.

What was the biggest insider buy in March 2026?

The largest open-market insider purchase disclosed in March 2026 was $100.0M by Simanovsky Michael at SONIDA SENIOR LIVING, INC. (SNDA), filed with the SEC on Form 4.

Biggest Insider Buys: March 2026

The largest open-market insider purchases disclosed in SEC Form 4 filings, ranked by dollar value.

In March 2026, 808 open-market insider purchases of $50K or more were disclosed across 377 companies in SEC Form 4 filings, totaling $1.3B. The largest single purchase was $100.0M by Simanovsky Michael at SONIDA SENIOR LIVING, INC. (SNDA).

← All monthly rankings

Largest purchases · March 2026

							Source
SNDA	Simanovsky Michael	Director, 10% Owner	Purchase	3,739,716	$100.0M	Mar 13	SEC ↗
ORBS	BITMINE IMMERSION TECHNOLOGIES, INC.	10% Owner	Purchase	86,956,513	$77.0M	Mar 18	SEC ↗
TTD	Green Jeffrey Terry	President and CEO	Purchase	2,314,304	$58.0M	Mar 4	SEC ↗
CPNG	MEHTA NEIL	Director	Purchase	3,000,000	$56.0M	Mar 13	SEC ↗
TTD	Green Jeffrey Terry	President and CEO	Purchase	2,000,000	$48.0M	Mar 4	SEC ↗
CPNG	MEHTA NEIL	Director	Purchase	2,332,863	$42.9M	Mar 13	SEC ↗
TTD	Green Jeffrey Terry	President and CEO	Purchase	1,685,696	$42.1M	Mar 4	SEC ↗
CPNG	MEHTA NEIL	Director	Purchase	2,017,241	$37.6M	Mar 13	SEC ↗
WVE	RA CAPITAL MANAGEMENT, L.P.	Director, 10% Owner	Purchase	5,305,782	$32.3M	Mar 30	SEC ↗
GENB	AFEYAN NOUBAR	Director, 10% Owner	Purchase	1,562,500	$25.0M	Mar 2	SEC ↗
LRMR	Flynn James E	* Director by Deputization	Purchase	5,000,000	$25.0M	Mar 2	SEC ↗
MGM	IAC Inc.	10% Owner	Purchase	550,000	$20.5M	Mar 25	SEC ↗
ALKT	GENERAL ATLANTIC, L.P.	Director, 10% Owner	Purchase	1,103,749	$19.4M	Mar 11	SEC ↗
MGM	IAC Inc.	10% Owner	Purchase	450,000	$16.7M	Mar 25	SEC ↗
ALKT	GENERAL ATLANTIC, L.P.	Director, 10% Owner	Purchase	900,000	$16.6M	Mar 11	SEC ↗
WVE	RA CAPITAL MANAGEMENT, L.P.	Director, 10% Owner	Purchase	2,495,623	$16.0M	Mar 30	SEC ↗
ALKT	GENERAL ATLANTIC, L.P.	Director, 10% Owner	Purchase	842,266	$14.6M	Mar 11	SEC ↗
ZURA	AI Biotechnology LLC	10% Owner	Purchase	2,000,000	$12.5M	Mar 2	SEC ↗
LYEL	ARCH Venture Fund XIII, L.P.	10% Owner	Purchase	488,090	$12.5M	Mar 9	SEC ↗
SABR	CONSTELLATION SOFTWARE INC	10% Owner	Purchase	10,634,702	$12.3M	Mar 30	SEC ↗
WGS	Meister Keith A.	Director, 10% Owner	Purchase	140,026	$11.4M	Mar 5	SEC ↗
IFF	FRIBOURG PAUL J	Director	Purchase	156,200	$11.0M	Mar 16	SEC ↗
WRB	MITSUI SUMITOMO INSURANCE CO LTD	10% Owner	Purchase	146,000	$10.6M	Mar 3	SEC ↗
FOX	MURDOCH LACHLAN K	Executive Chair, CEO	Purchase	175,372	$10.6M	Mar 13	SEC ↗
FRPH	BAKER JOHN D II	Director, 10% Owner	Purchase	478,468	$10.0M	Mar 25	SEC ↗