Top insider buys: May 25 – May 31, 2026

The largest open-market purchases company insiders reported on SEC Form 4 between May 25 – May 31, 2026.

Week 22, 2026

#CompanyWho boughtSharesValueSource
1SLMT

Brera Holdings PLC

2 officers/directors

Cluster buy

Ron Sade, Keren Kalima Maimon

2,298,000

$11.4M

SEC filings
2CELH

Celsius Holdings, Inc.

3 officers/directors

Cluster buy

Eric Hanson, Hal Kravitz, John Fieldly

24,375

$716K

SEC filings
3RLI

RLI CORP

3 officers/directors

Cluster buy

David B. Duclos, Jennifer L. Klobnak, Craig W. Kliethermes

9,500

$495K

SEC filings
4HCWB

HCW Biologics Inc.

2 officers/directors

Cluster buy

Hing C. Wong, Scott T. Garrett

291,815

$410K

SEC filings
5WHF

WhiteHorse Finance, Inc.

2 officers/directors

Cluster buy

John Bolduc, Stuart D. Aronson

53,420

$356K

SEC filings
6LILA

Liberty Latin America Ltd.

Insider

John C. Malone

12,406,463

$107.1M

SEC filings
7ARTV

Artiva Biotherapeutics, Inc.

10% Owner

GC Corp.

1,432,291

$16.5M

SEC filings
8GoldenTree Opportunistic Credit Fund

10% Owner

GOLDENTREE ASSET MANAGEMENT LP

1,254,921

$12.8M

SEC filings
9HLNE

Hamilton Lane INC

Executive Co-Chairman

Hartley R. Rogers

110,932

$10.0M

SEC filings
10FONR

FONAR CORP

10% Owner

Hilary Shane

338,753

$6.4M

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.