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

#CompanyWho boughtSharesValueSource
1QTTB

Q32 Bio Inc.

2 officers/directors

Cluster buy

Diyong Xu, ORBIMED ADVISORS LLC

3,750,000

$30.0M

SEC filings
2MNSO

MINISO Group Holding Ltd

2 officers/directors

Cluster buy

Yunyun (Alice) Yang, Guofu Ye

4,200,000

$13.8M

SEC filings
3SMMT

Summit Therapeutics Inc.

3 officers/directors

Cluster buy

Robert W. Duggan, Mahkam Zanganeh, Manmeet Singh Soni

250,000

$3.6M

SEC filings
4PODD

INSULET CORP

2 officers/directors

Cluster buy

Timothy C. Stonesifer, Elizabeth H. Weatherman

6,240

$898K

SEC filings
5RLI

RLI CORP

2 officers/directors

Cluster buy

Craig W. Kliethermes, Clark C. Kellogg

8,000

$413K

SEC filings
6INR

INFINITY NATURAL RESOURCES, INC.

2 officers/directors

Cluster buy

William J. Quinn, Scott Gieselman

24,603

$327K

SEC filings
7MAIA

MAIA Biotechnology, Inc.

2 officers/directors

Cluster buy

Vlad Vitoc, Stan Smith

147,700

$201K

SEC filings
8HOOD

Robinhood Markets, Inc.

Director

Meyer Malka

430,000

$35.1M

SEC filings
9NCLH

Norwegian Cruise Line Holdings Ltd.

Director

Stephen G. Pagliuca

1,380,000

$25.0M

SEC filings
10John 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

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.