Top insider buys: Jul 28 – Aug 3, 2025

The largest open-market purchases company insiders reported on SEC Form 4 between Jul 28 – Aug 3, 2025.

Week 31, 2025

#CompanyWho boughtSharesValueSource
1MSTR

MICROSTRATEGY Inc

7 officers/directors

Cluster buy

Briger Peter L JR, Le Phong, Patten Jarrod M, Montgomery Jeanine, Shao Wei-Ming, Kang Andrew, Dietze Jane A

242,855

$21.9M

SEC filings
2IMA

ImageneBio, Inc.

2 officers/directors

Cluster buy

Bonita David P, Stampacchia Otello

351,167

$10.5M

SEC filings
3UPS

UNITED PARCEL SERVICE INC

2 officers/directors

Cluster buy

JOHNSON WILLIAM R, TOME CAROL B

16,682

$1.4M

SEC filings
4EPD

ENTERPRISE PRODUCTS PARTNERS L.P.

2 officers/directors

Cluster buy

Montgomery William C, Rutherford John R

31,000

$975K

SEC filings
5PCB

PCB BANCORP

2 officers/directors

Cluster buy

RHEE DON, LEE SANG YOUNG

28,200

$592K

SEC filings
6SIGI

SELECTIVE INSURANCE GROUP INC

2 officers/directors

Cluster buy

McCarthy Thomas A, Marchioni John J.

5,700

$443K

SEC filings
7TROX

Tronox Holdings plc

2 officers/directors

Cluster buy

Srivisal John, Romano John D

137,000

$434K

SEC filings
8NVTS

Navitas Semiconductor Corp

Director

Singh Ranbir

18,645,603

$163.9M

SEC filings
9PRME

Prime Medicine, Inc.

3 separate filers

NELSEN ROBERT, ARCH Venture Partners XII, LLC, ARCH Venture Partners X, LLC

9,090,900

$30.0M

SEC filings
10SONO

Sonos Inc

10% Owner

Coliseum Capital Management, LLC

1,312,087

$14.8M

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.