How many insider purchases were disclosed in April 2026?

324 open-market insider purchases of $50K or more were disclosed across 161 companies by 215 distinct insiders in SEC Form 4 filings during April 2026, totaling $499.9M.

What was the biggest insider buy in April 2026?

The largest open-market insider purchase disclosed in April 2026 was $134.4M by Kaplan Andrew T. at Kailera Therapeutics, Inc. (KLRA), filed with the SEC on Form 4.

Biggest Insider Buys: April 2026

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

In April 2026, 324 open-market insider purchases of $50K or more were disclosed across 161 companies in SEC Form 4 filings, totaling $499.9M. The largest single purchase was $134.4M by Kaplan Andrew T. at Kailera Therapeutics, Inc. (KLRA).

← All monthly rankings

Largest purchases · April 2026

							Source
KLRA	Kaplan Andrew T.	Director, 10% Owner	Purchase	8,398,438	$134.4M	Apr 20	SEC ↗
SMC	Connect Midstream, LLC	10% Owner	Purchase	1,220,918	$37.9M	Apr 13	SEC ↗
LNBIX	Lincoln Financial Investments Corp	Investment Adviser	Purchase	2,472,799.209	$25.0M	Apr 20	SEC ↗
KLRA	Bain Capital Life Sciences Investors, LLC	10% Owner	Purchase	1,562,500	$25.0M	Apr 20	SEC ↗
THM	PAULSON & CO. INC.	10% Owner	Purchase	4,913,665	$12.6M	Apr 20	SEC ↗
PRLD	ORBIMED ADVISORS LLC	Director, 10% Owner	Purchase	2,815,315	$12.5M	Apr 23	SEC ↗
TORO	Panagiotidis Petros Panagiotis	Chief Executive Officer	Purchase	1,982,728	$12.1M	Apr 24	SEC ↗
OSCR	Bertolini Mark T	Chief Executive Officer	Purchase	1,000,000	$11.9M	Apr 7	SEC ↗
MESO	George Gregory	Director, 10% Owner	Purchase	2,131,890	$10.5M	Apr 13	SEC ↗
PHR	Pale Fire Capital SE	10% Owner	Purchase	1,000,500	$8.2M	Apr 2	SEC ↗
KLRA	RTW INVESTMENTS, LP	10% Owner	Purchase	500,000	$8.0M	Apr 22	SEC ↗
HYMC	Sprott Eric	10% Owner	Purchase	200,000	$7.7M	Apr 10	SEC ↗
CGCT	CGC III Sponsor LLC	10% Owner	Purchase	671,000	$6.9M	Apr 2	SEC ↗
BDC	ASSURED GUARANTY LTD	Insider	Purchase	242,718.447	$6.0M	Apr 30	SEC ↗
MESO	George Gregory	Director, 10% Owner	Purchase	4,000,000	$5.7M	Apr 13	SEC ↗
LW	JANA Partners Management, LP	See Remarks	Purchase	136,000	$5.6M	Apr 9	SEC ↗
BNR	Han Yusheng	Director	Purchase	314,870	$5.5M	Apr 2	SEC ↗
LW	JANA Partners Management, LP	See Remarks	Purchase	100,000	$4.2M	Apr 15	SEC ↗
LW	JANA Partners Management, LP	See Remarks	Purchase	100,000	$4.1M	Apr 9	SEC ↗
CNTB	Huang James	Director	Purchase	1,160,000	$4.0M	Apr 1	SEC ↗
TCGSX	TANNENBAUM LEONARD M	Director, 10% Owner	Purchase	410,677.618	$4.0M	Apr 1	SEC ↗
ALMR	Illumina Innovation Fund II GP, L.L.C.	10% Owner	Purchase	235,294	$4.0M	Apr 20	SEC ↗
HYMC	Sprott Eric	10% Owner	Purchase	100,000	$3.8M	Apr 27	SEC ↗
ECAT	Saba Capital Management, L.P.	10% Owner	Purchase	259,382	$3.6M	Apr 3	SEC ↗
CXIIU	Klein Michael Stuart	See Remarks	Purchase	350,000	$3.5M	Apr 29	SEC ↗