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$CHRS

$1.46 -$0.06 (3.95%)

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Insider Transactions

Insider Transaction Summary

Dennis M Lanfear

1,048,235 shares

Net: +363,161 B/S: ∞

LLC FMR

461,119 shares

Net: 0 B/S: -

Bryan J McMichael

133,736 shares

Net: +110,785 B/S: ∞

Vincent R Anicetti

124,790 shares

Net: 0 B/S: -

Vladimir Vexler

116,361 shares

Net: 0 B/S: -

Rita A Karachun

112,000 shares

Net: +112,000 B/S: ∞

Michael Lee Ryan

112,000 shares

Net: +112,000 B/S: ∞

MARK STOLPER

112,000 shares

Net: 0 B/S: -

Charles W. Newton

112,000 shares

Net: +112,000 B/S: ∞

Ali J. Satvat

112,000 shares

Net: +112,000 B/S: ∞

Mats Wahlstrom

112,000 shares

Net: +112,000 B/S: ∞

Georgia Erbez

112,000 shares

Net: +112,000 B/S: ∞

Lee Nisley Newcomer

112,000 shares

Net: +112,000 B/S: ∞

Jill O'Donnell-Tormey

112,000 shares

Net: +112,000 B/S: ∞

KIMBERLY JO TZOUMAKAS

112,000 shares

Net: 0 B/S: -

Paul Reider

82,069 shares

Net: 0 B/S: -

McDavid Stilwell

75,305 shares

Net: 0 B/S: -

Jean-Frederic Viret

61,295 shares

Net: 0 B/S: -

Alan C. Herman

50,460 shares

Net: 0 B/S: -

Peter K. Watler

50,000 shares

Net: 0 B/S: -

BARBARA K FINCK

37,043 shares

Net: 0 B/S: -

JAMES HEALY

27,000 shares

Net: 0 B/S: -

SAMUEL R MD NUSSBAUM

20,000 shares

Net: 0 B/S: -

ALAN C MENDELSON

20,000 shares

Net: 0 B/S: -

V BRYAN LAWLIS

20,000 shares

Net: 0 B/S: -

August J. Troendle

20,000 shares

Net: 0 B/S: -

Christos Richards

20,000 shares

Net: 0 B/S: -

Mary T Szela

20,000 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Dennis M Lanfear	1,048,235	+363,161	∞
LLC FMR	461,119	0	-
Bryan J McMichael	133,736	+110,785	∞
Vincent R Anicetti	124,790	0	-
Vladimir Vexler	116,361	0	-
Rita A Karachun	112,000	+112,000	∞
Michael Lee Ryan	112,000	+112,000	∞
MARK STOLPER	112,000	0	-
Charles W. Newton	112,000	+112,000	∞
Ali J. Satvat	112,000	+112,000	∞
Mats Wahlstrom	112,000	+112,000	∞
Georgia Erbez	112,000	+112,000	∞
Lee Nisley Newcomer	112,000	+112,000	∞
Jill O'Donnell-Tormey	112,000	+112,000	∞
KIMBERLY JO TZOUMAKAS	112,000	0	-
Paul Reider	82,069	0	-
McDavid Stilwell	75,305	0	-
Jean-Frederic Viret	61,295	0	-
Alan C. Herman	50,460	0	-
Peter K. Watler	50,000	0	-
BARBARA K FINCK	37,043	0	-
JAMES HEALY	27,000	0	-
SAMUEL R MD NUSSBAUM	20,000	0	-
ALAN C MENDELSON	20,000	0	-
V BRYAN LAWLIS	20,000	0	-
August J. Troendle	20,000	0	-
Christos Richards	20,000	0	-
Mary T Szela	20,000	0	-

Individual Transactions

January 23, 2026

Dennis M Lanfear

Grant/Award Acquisition

Change: +375,000

Price: $0.00

Shares: 1,048,235

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Dennis M Lanfear	Jan 26	Grant/Award Acquisition (A) Compensation/Award	1,048,235	+375,000	$0.00	+$0

January 22, 2026

Bryan J McMichael

Grant/Award Acquisition

Change: +112,500

Price: $0.00

Shares: 133,736

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Bryan J McMichael	Jan 26	Grant/Award Acquisition (A) Compensation/Award	133,736	+112,500	$0.00	+$0

January 20, 2026

Bryan J McMichael

Tax Payment

Change: -1,715

Price: $1.55

Shares: 21,236

Value: -$2,658

Dennis M Lanfear

Tax Payment

Change: -11,839

Price: $1.55

Shares: 673,235

Value: -$18,350

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Bryan J McMichael	Jan 22	Tax Payment (F) Tax Payment	21,236	-1,715	$1.55	-$2,658
Dennis M Lanfear	Jan 22	Tax Payment (F) Tax Payment	673,235	-11,839	$1.55	-$18,350

June 12, 2025

Jill O'Donnell-Tormey

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Lee Nisley Newcomer

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Michael Lee Ryan

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Rita A Karachun

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Georgia Erbez

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Charles W. Newton

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Ali J. Satvat

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Mats Wahlstrom

Grant/Award Acquisition

Change: +112,000

Price: $0.00

Shares: 112,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Jill O'Donnell-Tormey	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Lee Nisley Newcomer	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Michael Lee Ryan	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Rita A Karachun	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Georgia Erbez	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Charles W. Newton	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Ali J. Satvat	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0
Mats Wahlstrom	Jun 13	Grant/Award Acquisition (A) Compensation/Award	112,000	+112,000	$0.00	+$0

May 23, 2025

Mats Wahlstrom

Open Market Sale

Change: -99,988

Price: $0.74

Shares: 0

Value: -$73,881

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Mats Wahlstrom	May 28	Open Market Sale (S) Market Sale	0	-99,988	$0.74	-$73,881

May 07, 2025

Bryan J McMichael

Grant/Award Acquisition

Change: +200,000

Price: $0.00

Shares: 200,000

Value: +$0

Dennis M Lanfear

Grant/Award Acquisition

Change: +375,000

Price: $0.00

Shares: 375,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Bryan J McMichael	May 09	Grant/Award Acquisition (A) Compensation/Award	200,000	+200,000	$0.00	+$0
Dennis M Lanfear	May 09	Grant/Award Acquisition (A) Compensation/Award	375,000	+375,000	$0.00	+$0

January 20, 2025

Bryan J McMichael

Tax Payment

Change: -1,711

Price: $1.39

Shares: 22,951

Value: -$2,378

Paul Reider

Tax Payment

Change: -4,858

Price: $1.39

Shares: 82,069

Value: -$6,752

Dennis M Lanfear

Tax Payment

Change: -11,810

Price: $1.39

Shares: 685,074

Value: -$16,415

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Bryan J McMichael	Jan 22	Tax Payment (F) Tax Payment	22,951	-1,711	$1.39	-$2,378
Paul Reider	Jan 22	Tax Payment (F) Tax Payment	82,069	-4,858	$1.39	-$6,752
Dennis M Lanfear	Jan 22	Tax Payment (F) Tax Payment	685,074	-11,810	$1.39	-$16,415

January 10, 2025

Dennis M Lanfear

Grant/Award Acquisition

Change: +575,000

Price: $0.00

Shares: 575,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Dennis M Lanfear	Jan 14	Grant/Award Acquisition (A) Compensation/Award	575,000	+575,000	$0.00	+$0

January 07, 2025

Bryan J McMichael

Tax Payment

Change: -1,711

Price: $1.57

Shares: 24,662

Value: -$2,686

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Bryan J McMichael	Jan 10	Tax Payment (F) Tax Payment	24,662	-1,711	$1.57	-$2,686