Top insider buys: Jun 1 – Jun 7, 2026

The largest open-market purchases company insiders reported on SEC Form 4 between Jun 1 – Jun 7, 2026.

Week 23, 2026

#	Company	Who bought	Shares	Value	Source
1	QTTB Q32 Bio Inc.	2 officers/directors Cluster buy Xu Diyong, ORBIMED ADVISORS LLC	3,750,000	$30.0M	SEC filings
2	MNSO MINISO Group Holding Ltd	2 officers/directors Cluster buy Yang Yunyun (Alice), Ye Guofu	4,200,000	$13.8M	SEC filings
3	SMMT Summit Therapeutics Inc.	3 officers/directors Cluster buy DUGGAN ROBERT W, Zanganeh Mahkam, Soni Manmeet Singh	250,000	$3.6M	SEC filings
4	PODD INSULET CORP	2 officers/directors Cluster buy STONESIFER TIMOTHY C., WEATHERMAN ELIZABETH H	6,240	$898K	SEC filings
5	INR INFINITY NATURAL RESOURCES, INC.	2 officers/directors Cluster buy Quinn William J, Gieselman Scott	24,603	$327K	SEC filings
6	MAIA MAIA Biotechnology, Inc.	2 officers/directors Cluster buy Vitoc Vlad, Smith Stan	147,700	$201K	SEC filings
7	HOOD Robinhood Markets, Inc.	Director Malka Meyer	430,000	$35.1M	SEC filings
8	NCLH Norwegian Cruise Line Holdings Ltd.	Director PAGLIUCA STEPHEN G	1,380,000	$25.0M	SEC filings
9	John Hancock GA Senior Loan Trust	3 separate filers Manufacturers Life Reinsurance Ltd, Manulife (Singapore) Pte. Ltd., Manufacturers Life Insurance Co (Bermuda Branch)	1,334,497	$22.0M	SEC filings
10	IFF INTERNATIONAL FLAVORS & FRAGRANCES INC	Director FRIBOURG PAUL J	273,500	$20.3M	SEC filings

Source: SEC Form 4 filings, aggregated per company over the week. Open-market purchases of $100K or more only; grants, awards, option exercises and likely IPO or offering allocations are excluded. Cluster buys (two or more officers or directors buying) rank first, then by dollar value.

Not investment advice. This page reports public SEC data and is not a recommendation to buy or sell any security.