Insider trading on August 1, 2025

108 insiders at 75 companies bought $184.4M of their own stock on the open market, across 127 transactions. The largest was Berkshire Hathaway Inc, 10% Owner, buying $40.6M of Sirius Xm Holdings INC..

14 chief executives bought: Tome Carol B at UPS, Hogan Joseph M at ALGN, Kerins Sean J at ARW and 11 more.

Insiders sold $1.2B across 647 open-market sales. That is 6.7× the value bought. Selling routinely outweighs buying, because most executive pay is delivered in stock.

Bought

$184.4M

127 purchases

Sold

$1.2B

647 sales

Companies bought

108 insiders

CEO buys

chief executives

Open-market purchases

Code P only — insiders spending their own money, largest first.

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Ticker	Company	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 1, 2025	—	Sirius Xm Holdings INC.	Berkshire Hathaway Inc	10% Owner	PBUY	1.9M	$21.02	$40.6M	+1.6%	Open the original filing on SEC.gov
Aug 1, 2025	AUPH	Aurinia Pharmaceuticals…	Tang Kevin	Director	PBUY	1M	$10.12	$10.1M	+10.0%	Open the original filing on SEC.gov
Aug 1, 2025	PRME	Prime Medicine, Inc.	ARCH Venture Partners…	10% Owner	PBUY	3M	$3.30	$10M	+94.7%	Open the original filing on SEC.gov
Aug 1, 2025	PRME	Prime Medicine, Inc.	Nelsen Robert	Director, 10% Owner	PBUY	3M	$3.30	$10M	+94.7%	Open the original filing on SEC.gov
Aug 1, 2025	PRME	Prime Medicine, Inc.	ARCH Venture Partners…	10% Owner	PBUY	3M	$3.30	$10M	+94.7%	Open the original filing on SEC.gov
Aug 1, 2025	AMKR	Amkor Technology, INC.	Kim John T	10% Owner	PBUY	441,589	$21.85	$9.6M	+13.2%	Open the original filing on SEC.gov
Aug 1, 2025	AMKR	Amkor Technology, INC.	Kim David D	Member of 10% owner…	PBUY	441,589	$21.85	$9.6M	+13.2%	Open the original filing on SEC.gov
Aug 1, 2025	AMKR	Amkor Technology, INC.	Kim Susan Y	Director, 10% Owner	PBUY	441,589	$21.85	$9.6M	+13.2%	Open the original filing on SEC.gov
Aug 1, 2025	AMKR	Amkor Technology, INC.	Sujoda Management, LLC	Member of 10% owner…	PBUY	441,589	$21.85	$9.6M	+13.2%	Open the original filing on SEC.gov
Aug 1, 2025	AMKR	Amkor Technology, INC.	SUJODA Investments, LP	Member of 10% owner…	PBUY	441,589	$21.85	$9.6M	+13.2%	Open the original filing on SEC.gov
Aug 1, 2025	FIG	Figma, Inc.	McDermott William R	Director	PBUY	160,000	$33.00	$5.3M	+332.1%	Open the original filing on SEC.gov
Aug 1, 2025	PRME	Prime Medicine, Inc.	Gv 2021 Gp, L.l.c.	10% Owner	PBUY	1.5M	$3.30	$5M	+85.1%	Open the original filing on SEC.gov
Aug 1, 2025	—	Mallinckrodt plc	Goldentree Asset…	10% Owner	PBUY	50,000	$86.50	$4.3M	+0.6%	Open the original filing on SEC.gov
Aug 1, 2025	SI	Shoulder Innovations, INC.	LSV Associates II, LLC	Former 10% Owner	PBUY	266,666	$15.00	$4M	+16.5%	Open the original filing on SEC.gov
Aug 1, 2025	SI	Shoulder Innovations, INC.	Carusi Michael A	Director	PBUY	266,666	$15.00	$4M	+16.5%	Open the original filing on SEC.gov
Aug 1, 2025	ASAN	Asana, Inc.	Moskovitz Dustin A.	Director, 10% Owner	PBUY◷	225,000	$14.04	$3.2M	+0.4%	Open the original filing on SEC.gov
Aug 1, 2025	FIG	Figma, Inc.	Lilly III John Osborne	Director	PBUY	62,500	$33.00	$2.1M	—	Open the original filing on SEC.gov
Aug 1, 2025	BCAR	D. Boral ARC Acquisition…	Darwin John	Chief Financial Officer	PBUY	200,000	$10.00	$2M	—	Open the original filing on SEC.gov
Aug 1, 2025	FIG	Figma, Inc.	Reed Andrew Phillips	Director	PBUY	60,000	$33.00	$2M	—	Open the original filing on SEC.gov
Aug 1, 2025	OBIO	Orchestra BioMed…	Perceptive Advisors Llc	10% Owner	PBUY	700,000	$2.75	$1.9M	+15.2%	Open the original filing on SEC.gov
Aug 1, 2025	CCO	Clear Channel Outdoor…	Moreno Arturo R	10% Owner	PBUY	1.5M	$1.04	$1.6M	+2.3%	Open the original filing on SEC.gov
Aug 1, 2025	SI	Shoulder Innovations, INC.	Gilde Healthcare…	10% Owner	PBUY	100,000	$15.00	$1.5M	+4.4%	Open the original filing on SEC.gov
Aug 1, 2025	SI	Shoulder Innovations, INC.	Pardo Geoffrey B	Director, 10% Owner	PBUY	100,000	$15.00	$1.5M	+4.4%	Open the original filing on SEC.gov
Aug 1, 2025	XHFIX	Hartford Schroders…	Hartford Funds Managemen…	10% Owner	PBUY	119,904	$12.51	$1.5M	+9.9%	Open the original filing on SEC.gov
Aug 1, 2025	XHFIX	Hartford Schroders…	Schroder US Holdings…	10% Owner	PBUY	119,904	$12.51	$1.5M	+9.9%	Open the original filing on SEC.gov
Aug 1, 2025	FTV	Fortive Corp	Okerstrom Mark D	Chief Financial Officer	PBUY	21,300	$47.03	$1M	+29.0%	Open the original filing on SEC.gov
Aug 1, 2025	UPS	United Parcel Service INC	Tome Carol B	Chief Executive Officer	PBUY	11,682	$85.67	$1M	+89.6%	Open the original filing on SEC.gov
Aug 1, 2025	ALGN	Align Technology INC	Hogan Joseph M	President and CEO	PBUY	7,576	$131.49	$996.1K	+4.3%	Open the original filing on SEC.gov
Aug 1, 2025	ARW	Arrow Electronics, INC.	Kerins Sean J	President and CEO	PBUY	8,630	$114.91	$991.7K	+7.6%	Open the original filing on SEC.gov
Aug 1, 2025	FIG	Figma, Inc.	von Ahn Luis	Director	PBUY	30,000	$33.00	$990K	+62.3%	Open the original filing on SEC.gov
Aug 1, 2025	—	Pinnacle Financial…	Thompson G Kennedy	Director	PBUY	10,000	$85.65	$856.5K	+54.4%	Open the original filing on SEC.gov
Aug 1, 2025	SONO	Sonos Inc	Coliseum Capital…	10% Owner	PBUY	80,000	$10.38	$830.4K	+0.5%	Open the original filing on SEC.gov
Aug 1, 2025	CLVT	Clarivate PLC	Cornick Kenneth L.	Director	PBUY	165,000	$3.74	$617.1K	+150.0%	Open the original filing on SEC.gov
Aug 1, 2025	SI	Shoulder Innovations, INC.	Tansey Casey M	Director, 10% Owner	PBUY	40,000	$15.00	$600K	+521.8%	Open the original filing on SEC.gov
Aug 1, 2025	—	Clarion Partners Real…	Watkins Brian	Portfolio Manager	PBUY	45,691.91	$11.49	$525K	—	Open the original filing on SEC.gov
Aug 1, 2025	—	Keystone Private Income…	Shaw Daren	Director	PBUY★	5,060.73	$98.80	$500K	—	Open the original filing on SEC.gov
Aug 1, 2025	CLH	Clean Harbors INC	Battles Michael Louis	Co-ceo	PBUY	2,000	$233.50	$467K	+2.5%	Open the original filing on SEC.gov
Aug 1, 2025	PETS	Petmed Express INC	Silvercape Investments…	10% Owner	PBUY▲	118,200	$3.21	$379.4K	+5.0%	Open the original filing on SEC.gov
Aug 1, 2025	TROX	Tronox Holdings plc	Romano John D	CEO and Director	PBUY	100,000	$3.09	$308.9K	+8.1%	Open the original filing on SEC.gov

—PBUY$40.6M

Berkshire Hathaway Inc · 10% OwnerAug 1, 2025

1.9M sh @ $21.02 · +1.6% own

AUPHPBUY$10.1M

Tang Kevin · DirectorAug 1, 2025

1M sh @ $10.12 · +10.0% own

PRMEPBUY$10M

ARCH Venture Partners… · 10% OwnerAug 1, 2025

3M sh @ $3.30 · +94.7% own

PRMEPBUY$10M

Nelsen Robert · Director, 10%…Aug 1, 2025

3M sh @ $3.30 · +94.7% own

PRMEPBUY$10M

ARCH Venture Partners… · 10% OwnerAug 1, 2025

3M sh @ $3.30 · +94.7% own

AMKRPBUY$9.6M

Kim John T · 10% OwnerAug 1, 2025