Understand Stock

$ACRS

$4.49 -$0.14 (3.02%)

Deep Research with AI Research

Overview

$ACRS Overview Financials SEC Filings Executives News

Specialized Tools

Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

Braden Michael Leonard

13,950,000 shares

Net: -300,000 B/S: -

Ventures VII Affiliates Fund, L.P. Vivo

2,797,597 shares

Net: 0 B/S: -

Peter Kolchinsky

2,314,942 shares

Net: 0 B/S: -

MICHAEL POWELL

2,289,480 shares

Net: 0 B/S: -

Capital Healthcare Fund LP RA

2,125,769 shares

Net: 0 B/S: -

LLC FMR

1,931,727 shares

Net: 0 B/S: -

Neal Walker

1,562,497 shares

Net: +338,862 B/S: ∞

PARTNERS, L.P. DEERFIELD

1,072,775 shares

Net: 0 B/S: -

James E Flynn

964,101 shares

Net: 0 B/S: -

Anand Mehra

714,823 shares

Net: +47,143 B/S: ∞

Joseph Monahan

265,662 shares

Net: 0 B/S: -

Frank Ruffo

201,883 shares

Net: 0 B/S: -

James Loerop

198,197 shares

Net: +164,937 B/S: ∞

Kevin Balthaser

188,130 shares

Net: +193,945 B/S: ∞

Stephen A. Tullman

177,457 shares

Net: 0 B/S: -

David N. Gordon

147,447 shares

Net: 0 B/S: -

Christopher Powala

141,729 shares

Net: 0 B/S: -

Kamil Ali-Jackson

118,571 shares

Net: 0 B/S: -

Jesse Wayne Hall

98,100 shares

Net: +98,100 B/S: ∞

Roland Wilhelm Kolbeck

95,700 shares

Net: +241,200 B/S: ∞

Stuart Shanler

82,200 shares

Net: 0 B/S: -

Christopher P. Molineaux

57,956 shares

Net: +47,143 B/S: ∞

Hugh M. Davis

45,425 shares

Net: +141,525 B/S: ∞

Douglas J. Manion

41,813 shares

Net: 0 B/S: -

William D. Humphries

33,525 shares

Net: +47,143 B/S: ∞

Andrew Kenneth William Powell

33,523 shares

Net: 0 B/S: -

Bryan M. Reasons

28,732 shares

Net: 0 B/S: -

MAXINE GOWEN

21,754 shares

Net: +47,143 B/S: ∞

VINCENT MILANO

17,316 shares

Net: +47,143 B/S: ∞

ANDREW N SCHIFF

13,960 shares

Net: +47,143 B/S: ∞

Brett Fair

10,582 shares

Net: 0 B/S: -

Gail Cawkwell

9,593 shares

Net: 0 B/S: -

Rick Bierly

8,000 shares

Net: 0 B/S: -

ALBERT CHA

6,632 shares

Net: 0 B/S: -

Capital Fund III, L.P. Foresite

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Braden Michael Leonard	13,950,000	-300,000	-
Ventures VII Affiliates Fund, L.P. Vivo	2,797,597	0	-
Peter Kolchinsky	2,314,942	0	-
MICHAEL POWELL	2,289,480	0	-
Capital Healthcare Fund LP RA	2,125,769	0	-
LLC FMR	1,931,727	0	-
Neal Walker	1,562,497	+338,862	∞
PARTNERS, L.P. DEERFIELD	1,072,775	0	-
James E Flynn	964,101	0	-
Anand Mehra	714,823	+47,143	∞
Joseph Monahan	265,662	0	-
Frank Ruffo	201,883	0	-
James Loerop	198,197	+164,937	∞
Kevin Balthaser	188,130	+193,945	∞
Stephen A. Tullman	177,457	0	-
David N. Gordon	147,447	0	-
Christopher Powala	141,729	0	-
Kamil Ali-Jackson	118,571	0	-
Jesse Wayne Hall	98,100	+98,100	∞
Roland Wilhelm Kolbeck	95,700	+241,200	∞
Stuart Shanler	82,200	0	-
Christopher P. Molineaux	57,956	+47,143	∞
Hugh M. Davis	45,425	+141,525	∞
Douglas J. Manion	41,813	0	-
William D. Humphries	33,525	+47,143	∞
Andrew Kenneth William Powell	33,523	0	-
Bryan M. Reasons	28,732	0	-
MAXINE GOWEN	21,754	+47,143	∞
VINCENT MILANO	17,316	+47,143	∞
ANDREW N SCHIFF	13,960	+47,143	∞
Brett Fair	10,582	0	-
Gail Cawkwell	9,593	0	-
Rick Bierly	8,000	0	-
ALBERT CHA	6,632	0	-
Capital Fund III, L.P. Foresite	0	0	-

Individual Transactions

April 23, 2026

Braden Michael Leonard

Open Market Sale

Change: -300,000

Price: $4.53

Shares: 13,950,000

Value: -$1,359,000

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Braden Michael Leonard	Apr 27	Open Market Sale (S) Market Sale	13,950,000	-300,000	$4.53	-$1,359,000

March 01, 2026

Kevin Balthaser

Option Exercise/Conversion

Change: +2,375

Price: $0.00

Shares: 188,130

Value: +$0

Kevin Balthaser

Tax Payment

Change: -677

Price: $2.87

Shares: 187,453

Value: -$1,942

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Kevin Balthaser	Mar 03	Option Exercise/Conversion (M) Compensation/Award	188,130	+2,375	$0.00	+$0
Kevin Balthaser	Mar 03	Tax Payment (F) Tax Payment	187,453	-677	$2.87	-$1,942

February 03, 2026

Hugh M. Davis

Option Exercise/Conversion

Change: +18,675

Price: $0.00

Shares: 45,425

Value: +$0

Kevin Balthaser

Option Exercise/Conversion

Change: +22,025

Price: $0.00

Shares: 192,204

Value: +$0

Kevin Balthaser

Tax Payment

Change: -6,449

Price: $3.47

Shares: 185,755

Value: -$22,378

James Loerop

Option Exercise/Conversion

Change: +20,875

Price: $0.00

Shares: 198,197

Value: +$0

James Loerop

Tax Payment

Change: -5,937

Price: $3.47

Shares: 192,260

Value: -$20,601

Neal Walker

Option Exercise/Conversion

Change: +63,475

Price: $0.00

Shares: 1,562,497

Value: +$0

Neal Walker

Tax Payment

Change: -18,611

Price: $3.47

Shares: 1,543,886

Value: -$64,580

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Hugh M. Davis	Feb 05	Option Exercise/Conversion (M) Compensation/Award	45,425	+18,675	$0.00	+$0
Kevin Balthaser	Feb 05	Option Exercise/Conversion (M) Compensation/Award	192,204	+22,025	$0.00	+$0
Kevin Balthaser	Feb 05	Tax Payment (F) Tax Payment	185,755	-6,449	$3.47	-$22,378
James Loerop	Feb 05	Option Exercise/Conversion (M) Compensation/Award	198,197	+20,875	$0.00	+$0
James Loerop	Feb 05	Tax Payment (F) Tax Payment	192,260	-5,937	$3.47	-$20,601
Neal Walker	Feb 05	Option Exercise/Conversion (M) Compensation/Award	1,562,497	+63,475	$0.00	+$0
Neal Walker	Feb 05	Tax Payment (F) Tax Payment	1,543,886	-18,611	$3.47	-$64,580

February 02, 2026

Roland Wilhelm Kolbeck

Grant/Award Acquisition

Change: +95,700

Price: $0.00

Shares: 95,700

Value: +$0

Jesse Wayne Hall

Grant/Award Acquisition

Change: +98,100

Price: $0.00

Shares: 98,100

Value: +$0

Hugh M. Davis

Grant/Award Acquisition

Change: +96,100

Price: $0.00

Shares: 96,100

Value: +$0

Kevin Balthaser

Grant/Award Acquisition

Change: +99,100

Price: $0.00

Shares: 99,100

Value: +$0

James Loerop

Grant/Award Acquisition

Change: +97,700

Price: $0.00

Shares: 97,700

Value: +$0

Neal Walker

Grant/Award Acquisition

Change: +274,800

Price: $0.00

Shares: 274,800

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Roland Wilhelm Kolbeck	Feb 06	Grant/Award Acquisition (A) Compensation/Award	95,700	+95,700	$0.00	+$0
Jesse Wayne Hall	Feb 06	Grant/Award Acquisition (A) Compensation/Award	98,100	+98,100	$0.00	+$0
Hugh M. Davis	Feb 06	Grant/Award Acquisition (A) Compensation/Award	96,100	+96,100	$0.00	+$0
Kevin Balthaser	Feb 06	Grant/Award Acquisition (A) Compensation/Award	99,100	+99,100	$0.00	+$0
James Loerop	Feb 06	Grant/Award Acquisition (A) Compensation/Award	97,700	+97,700	$0.00	+$0
Neal Walker	Feb 06	Grant/Award Acquisition (A) Compensation/Award	274,800	+274,800	$0.00	+$0

February 01, 2026

James Loerop

Option Exercise/Conversion

Change: +11,250

Price: $0.00

Shares: 165,758

Value: +$0

James Loerop

Tax Payment

Change: -10,686

Price: $3.51

Shares: 177,322

Value: -$37,507

Kevin Balthaser

Option Exercise/Conversion

Change: +14,750

Price: $0.00

Shares: 175,163

Value: +$0

Kevin Balthaser

Tax Payment

Change: -4,984

Price: $3.51

Shares: 170,179

Value: -$17,493

Insider	Filing Date	Transaction	Shares	Change	Price	Value
James Loerop	Feb 05	Option Exercise/Conversion (M) Compensation/Award	165,758	+11,250	$0.00	+$0
James Loerop	Feb 05	Tax Payment (F) Tax Payment	177,322	-10,686	$3.51	-$37,507
Kevin Balthaser	Feb 03	Option Exercise/Conversion (M) Compensation/Award	175,163	+14,750	$0.00	+$0
Kevin Balthaser	Feb 03	Tax Payment (F) Tax Payment	170,179	-4,984	$3.51	-$17,493