Top insider buys: Aug 4 – Aug 10, 2025

The largest open-market purchases company insiders reported on SEC Form 4 between Aug 4 – Aug 10, 2025.

Week 32, 2025

#CompanyWho boughtSharesValueSource
1VRTX

VERTEX PHARMACEUTICALS INC / MA

2 officers/directors

Cluster buy

Kewalramani Reshma, SACHS BRUCE I

15,000

$5.8M

SEC filings
2PNFP

PINNACLE FINANCIAL PARTNERS INC

2 officers/directors

Cluster buy

INGRAM DAVID B, THOMPSON G KENNEDY

32,000

$2.8M

SEC filings
3IFF

INTERNATIONAL FLAVORS & FRAGRANCES INC

2 officers/directors

Cluster buy

FRIBOURG PAUL J, Fyrwald J Erik

30,750

$2.0M

SEC filings
4PTLO

Portillo's Inc.

3 officers/directors

Cluster buy

LEE EUGENE I JR, Hook Michelle Greig, Kaiser Kelly M

197,250

$1.5M

SEC filings
5NSP

INSPERITY, INC.

4 officers/directors

Cluster buy

KAUFMAN CAROL R, Lumelleau John L, JONES ELI, ALLISON JAMES D

16,704

$763K

SEC filings
6MKZR

MacKenzie Realty Capital, Inc.

5 officers/directors

Cluster buy

Simpson Christine Elizabeth, Sherpa Angche, PATTERSON CHARLES E. II, FULLER GLEN W, Bluth Jeri Ruth

152,540

$671K

SEC filings
7TFX

TELEFLEX INC

4 officers/directors

Cluster buy

RANDLE STUART A, Krakauer Andrew A, Kelly Liam, Ryu Jaewon

5,000

$576K

SEC filings
8XELB

XCel Brands, Inc.

2 officers/directors

Cluster buy

D LOREN ROBERT W, DiSanto Mark

216,000

$238K

SEC filings
9SIRI

SIRIUS XM HOLDINGS INC.

10% Owner

BERKSHIRE HATHAWAY INC

5,030,425

$106.5M

SEC filings
10AMKR

AMKOR TECHNOLOGY, INC.

5 separate filers

KIM DAVID D, SUJODA Investments, LP, Sujoda Management, LLC, KIM JOHN T, KIM SUSAN Y

2,207,945

$48.2M

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.