Top insider buys: Aug 10 – Aug 16, 2026

The largest open-market purchases company insiders reported on SEC Form 4 between Aug 10 – Aug 16, 2026.

Week 33, 2026

#CompanyWho boughtSharesValueSource
1BORR

Borr Drilling Ltd

2 officers/directors

Cluster buy

Tor Olav Troim, Jeffrey Currie

1,625,000

$6.5M

SEC filings
2APTV

Aptiv PLC

2 officers/directors

Cluster buy

Sean O. Mahoney, Kevin P. Clark

62,190

$3.1M

SEC filings
3XRN

Chiron Real Estate Inc.

3 officers/directors

Cluster buy

Mark Okey Decker Jr., Aaron Robert Roseth, Charles Fitzgerald

69,975

$2.5M

SEC filings
4ANGX

Angel Studios, Inc.

2 officers/directors

Cluster buy

Steven I. Sarowitz, Neal Harmon

382,851

$1.5M

SEC filings
5VIA

Via Transportation, Inc.

2 officers/directors

Cluster buy

Nechemia Jacob Peres, Arnon Dinur

54,860

$1.2M

SEC filings
6AMRC

Ameresco, Inc.

2 officers/directors

Cluster buy

George P. Sakellaris, Brian C. Cox

46,700

$1.2M

SEC filings
7ABCL

AbCellera Biologics Inc.

2 officers/directors

Cluster buy

Andrew Booth, Michael R. Hayden

83,587

$865K

SEC filings
8HEPA

Hepion Pharmaceuticals, Inc.

4 officers/directors

Cluster buy

Gary S. Stetz, Michael J. Purcell, Sireesh Appajosyula, Vincent S. LoPriore

16,000,000

$800K

SEC filings
9AMRZ

Amrize Ltd

3 officers/directors

Cluster buy

Stephen S. Clark, Mario Gross, Baris Oran

14,828

$699K

SEC filings
10TNC

TENNANT CO

2 officers/directors

Cluster buy

Donal L. Mulligan, Timothy R. Morse

9,500

$641K

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.