Updated from live SEC & congressional filings

When the people who know most are buying,
we tell you.

Corporate insiders and members of Congress have to disclose their trades. Almost nobody reads the filings. We do — and we surface the biggest buys here, free.

Insider buys tracked

$108.20M

Total insider buying

Congress trades

Cluster Buys

2+ insiders · same stock · 90 days

Stocks where several different insiders are buying at once — a stronger signal than any single purchase.

TSM

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

30 insiders buying

$295K

Aug 18, 2026 – Oct 7, 2026

Yuan Lipen · VP$177K
Wei Che-Chia · Chairman and CEO$11K
Mii Yuh-Jier · EVP and Co-COO$5K
Chin Yung-Pei · EVP and Co-COO$5K
Hou Yung-Chin · SVP and Deputy Co-COO$5K
Zhang Kevin Xiaoqiang · SVP and Deputy Co-COO$5K
Wu Shien-Yang · SVP$4K
Fang Shu-Hua · SVP and GC$4K
Wang Ying-Lang · SVP$4K
Yeap Choh Fei · SVP$4K
Hsu Kuo-Chin · VP$4K
Chang Tzonz-Sheng · SVP$4K
Cao Min · VP$4K
Lee Chun-Hsien · SVP$4K
Yoo Chue-San · VP$4K
Lu Lee-Chung · VP$4K
Tien Bor-Zen · VP$4K
Chuang Juiping · VP$4K
Chuang Tzu-Sou · VP$4K
Jang Syun-Ming · VP$4K
Ku Yao-Ching · VP$4K
Lin Shyue-Shyh · VP$3K
Lin Chris Horng-Dar · VP and CIO$3K
Chen Pei-Hung · VP$3K
He Jun · VP$3K
Wu Yi-Huang · VP$3K
Hwang Yuan-Ko · VP$3K
Lu Chin-Sheng · VP$3K
Chen Chih-Ho · Controller$2K
Huang Jen-Chau · SVP and CFO$2K

BLSM

BlossomHill Therapeutics, Inc.

6 insiders buying

$25.18M

Aug 7, 2026 – Aug 10, 2026

ORBIMED ADVISORS LLC · Director$10.00M
GORDON CARL L · Director$10.00M
Chen Bihua · Insider$5.00M
Schmid John P. · Insider$96K
Liptak Vincent Paul · General Counsel$75K
Keyes Jason A · Chief Financial Officer$11K

ACON

Aclarion, Inc.

6 insiders buying

$126K

Aug 13, 2026 – Aug 17, 2026

Bond Ryan · Director$50K
Gould Gregory A · CFO$25K
Neal David K · Director$18K
Williams Amanda M · Director$16K
Ness Brent · Chief Executive Officer$12K
Wesemann William · Director$5K

See all cluster buys →

Biggest Insider Buys

SEC Form 4 · open-market purchases

Ticker	Insider	Title	Value	Shares	Date
RTSN Keller Eric L.	Keller Eric L.	CHIEF EXECUTIVE OFFICER	$250K	20,800	Oct 13, 2026
BBD Alvarez Rubens Aguiar	Alvarez Rubens Aguiar	Director	$29.49M	1,698,000	Sep 1, 2026
GGR Yin Chung-Yao	Yin Chung-Yao	Director	$26.52M	10,692,681	Oct 7, 2026
CRBG NIPPON LIFE INSURANCE CO	NIPPON LIFE INSURANCE CO	10% Owner	$20.88M	606,912	Oct 7, 2026
GGR Yin Chung-Yao	Yin Chung-Yao	Director	$8.60M	3,466,310	Oct 7, 2026
REF Coyle John Joseph	Coyle John Joseph	Director	$3.00M	200,000	Jul 31, 2026
BPRE KAMFAR RAMIN	KAMFAR RAMIN	Director	$2.42M	186,612	Oct 7, 2026
BPRE KAMFAR RAMIN	KAMFAR RAMIN	Director	$2.25M	171,094	Oct 9, 2026
BPRE KAMFAR RAMIN	KAMFAR RAMIN	Director	$1.97M	150,937	Oct 8, 2026
BPRE KAMFAR RAMIN	KAMFAR RAMIN	Director	$1.85M	142,420	Oct 6, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$1.08M	1,291,471	Aug 19, 2026
PRTA SCULLY WILLIAM P	SCULLY WILLIAM P	10% Owner	$1.05M	125,000	Oct 7, 2026
BBD Alvarez Rubens Aguiar	Alvarez Rubens Aguiar	Director	$972K	56,100	Sep 1, 2026
SAH Rusnak Paul P.	Rusnak Paul P.	10% Owner	$819K	13,701	Oct 7, 2026
PRTA SCULLY WILLIAM P	SCULLY WILLIAM P	10% Owner	$771K	90,000	Oct 8, 2026
N/A Aksia LLC	Aksia LLC	Insider	$636K	61,371.493	Mar 2, 2026
BBD Alvarez Rubens Aguiar	Alvarez Rubens Aguiar	Director	$602K	34,700	Sep 1, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$544K	732,279	Jul 30, 2026
N.A. Aksia LLC	Aksia LLC	Insider	$511K	46,210.293	Jan 2, 2026
BBD Alvarez Rubens Aguiar	Alvarez Rubens Aguiar	Director	$481K	27,700	Sep 1, 2026
BBD Alvarez Rubens Aguiar	Alvarez Rubens Aguiar	Director	$455K	26,300	Sep 1, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$453K	535,191	Aug 21, 2026
N.A. Aksia LLC	Aksia LLC	Insider	$399K	35,842.386	Mar 2, 2026
CTNT Liu Huan	Liu Huan	See Remarks	$330K	100,000	Oct 9, 2026
N/A Aksia LLC	Aksia LLC	Insider	$281K	26,358.754	Jan 2, 2026
N/A Aksia LLC	Aksia LLC	Insider	$280K	26,361.618	Mar 2, 2026
VDTA Leverton Jaime	Leverton Jaime	Director	$255K	85,000	Aug 11, 2026
ECF Saba Capital Management, L.P.	Saba Capital Management, L.P.	10% Owner	$210K	17,548	Oct 7, 2026
N/A Aksia LLC	Aksia LLC	Insider	$157K	15,456.475	Jan 2, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$143K	171,711	Aug 24, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$98K	129,808	Jul 29, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$90K	120,958	Jul 31, 2026
CRT OLIVER ERIC L	OLIVER ERIC L	10% Owner	$72K	6,041	Oct 8, 2026
REF Allen Zipporah	Allen Zipporah	Director	$53K	3,500	Jul 31, 2026
AGMB Epstein David R	Epstein David R	Director	$45K	5,000	Oct 8, 2026
OPTU SUBIN NEIL S	SUBIN NEIL S	10% Owner	$43K	50,536	Aug 20, 2026
BBD Alvarez Rubens Aguiar	Alvarez Rubens Aguiar	Director	$38K	2,200	Sep 1, 2026
QTEX Ben-Noon Dagi Shahar	Ben-Noon Dagi Shahar	Chief Executive Officer	$30K	18,181	Oct 9, 2026
GRX Saba Capital Management, L.P.	Saba Capital Management, L.P.	10% Owner	$28K	2,955	Oct 7, 2026
NMCO Hamilton Michael S.	Hamilton Michael S.	Insider	$26K	3,000	Oct 9, 2026

Congressional Trades

STOCK Act disclosures

Member	Chamber	Ticker	Type	Amount	Date
Rick LarsenWA02	House	WSM	Buy	$1,001 - $15,000	Oct 8, 2026
Rick LarsenWA02	House	HD	Sell	$1,001 - $15,000	Oct 8, 2026
Rick LarsenWA02	House	FDX	Sell	$1,001 - $15,000	Oct 8, 2026
Rick LarsenWA02	House	ADI	Buy	$1,001 - $15,000	Oct 8, 2026
Gilbert CisnerosCA31	House	THR	Sell	$15,001 - $50,000	Oct 1, 2026
Gilbert CisnerosCA31	House	BHE	Buy	$15,001 - $50,000	Oct 1, 2026
Lisa McClainMI09	House	STX	Sell	$15,001 - $50,000	Sep 30, 2026
Lisa McClainMI09	House	MSFT	Buy	$1,001 - $15,000	Sep 30, 2026
Lisa McClainMI09	House	IBRX	Buy	$1,001 - $15,000	Sep 30, 2026
Gilbert CisnerosCA31	House	YETI	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	RARE	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	TNDM	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	SMTC	Sell	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	PRAX	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	OXM	Sell	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	MTSI	Sell	$15,001 - $50,000	Sep 29, 2026
Gilbert CisnerosCA31	House	ITT	Sell	$15,001 - $50,000	Sep 29, 2026
Gilbert CisnerosCA31	House	HALO	Sell	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	GTES	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	CYTK	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	BBIO	Sell	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	ATRC	Sell	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	ALGM	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	ALKS	Buy	$1,001 - $15,000	Sep 29, 2026
Gilbert CisnerosCA31	House	AEIS	Buy	$1,001 - $15,000	Sep 29, 2026
Lisa McClainMI09	House	IBRX	Buy	$1,001 - $15,000	Sep 28, 2026
Lisa McClainMI09	House	CAT	Buy	$1,001 - $15,000	Sep 28, 2026
Gilbert CisnerosCA31	House	ON	Buy	$15,001 - $50,000	Sep 28, 2026
Josh GottheimerNJ05	House	MCD	Sell	$1,001 - $15,000	Sep 25, 2026
Gilbert CisnerosCA31	House	TSM	Buy	$1,001 - $15,000	Sep 22, 2026

Data sourced from public SEC Form 4 filings and congressional STOCK Act disclosures. For informational purposes only — not investment advice. Insider and congressional buying is one signal among many and does not guarantee future performance.

This Month's Report

The 10 Biggest Insider & Congress Buys — And What They Signal

Our full breakdown of the month's most notable buying, the clusters worth watching, and the names insiders keep coming back to.

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