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

Troim Tor Olav, Currie Jeffrey

1,625,000

$6.5M

SEC filings
2APTV

Aptiv PLC

2 officers/directors

Cluster buy

Mahoney Sean O, CLARK KEVIN P

62,190

$3.1M

SEC filings
3XRN

Chiron Real Estate Inc.

3 officers/directors

Cluster buy

Decker Mark Okey Jr, Roseth Aaron Robert, Fitzgerald Charles

69,975

$2.5M

SEC filings
4ANGX

Angel Studios, Inc.

2 officers/directors

Cluster buy

Sarowitz Steven I, Harmon Neal

382,851

$1.5M

SEC filings
5VIA

Via Transportation, Inc.

2 officers/directors

Cluster buy

Peres Nechemia Jacob, Dinur Arnon

54,860

$1.2M

SEC filings
6AMRC

Ameresco, Inc.

2 officers/directors

Cluster buy

Sakellaris George P, Cox Brian C

46,700

$1.2M

SEC filings
7ABCL

AbCellera Biologics Inc.

2 officers/directors

Cluster buy

Booth Andrew, Hayden Michael R

83,587

$865K

SEC filings
8HEPA

Hepion Pharmaceuticals, Inc.

4 officers/directors

Cluster buy

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

16,000,000

$800K

SEC filings
9AMRZ

Amrize Ltd

3 officers/directors

Cluster buy

Clark Stephen S, Gross Mario, Oran Baris

14,828

$699K

SEC filings
10TNC

TENNANT CO

2 officers/directors

Cluster buy

Mulligan Donal L, Morse Timothy R.

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.