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$ESPR

$3.13 +$0.00 (0.0%)

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Insider Transactions

Insider Transaction Summary

BIOTECH AG BB

4,477,964 shares

Net: 0 B/S: -

TARGET N V BIOTECH

3,947,964 shares

Net: 0 B/S: -

Sheldon L. Koenig

2,172,699 shares

Net: +591,037 B/S: 5.45

Capital, LLC Boxer

1,134,750 shares

Net: 0 B/S: -

Benjamin Halladay

713,602 shares

Net: +219,383 B/S: 8.82

Benjamin Looker

679,348 shares

Net: +271,685 B/S: 10.32

ROGER S NEWTON

548,726 shares

Net: 0 B/S: -

John B. Jr. Harlow

424,536 shares

Net: +424,536 B/S: ∞

Eric Warren

370,218 shares

Net: 0 B/S: -

Joanne M. Foody

272,862 shares

Net: 0 B/S: -

TIMOTHY M MAYLEBEN

175,000 shares

Net: 0 B/S: -

Mary McGowan

140,000 shares

Net: 0 B/S: -

J MARTIN CARROLL

97,650 shares

Net: 0 B/S: -

NICOLE VITULLO

88,000 shares

Net: 0 B/S: -

Tracy M Woody

88,000 shares

Net: 0 B/S: -

Jay Shepard

84,599 shares

Net: 0 B/S: -

Richard Bartram

82,751 shares

Net: 0 B/S: -

STEPHEN ROCAMBOLI

69,261 shares

Net: 0 B/S: -

Seth H. Z. Fischer

61,150 shares

Net: 0 B/S: -

Alan Fuhrman

53,404 shares

Net: 0 B/S: -

ANTONIO M JR MD D PHIL GOTTO

51,599 shares

Net: 0 B/S: -

JOHN CRAIG THOMPSON

40,000 shares

Net: +40,000 B/S: ∞

Narendra D. Lalwani

36,000 shares

Net: 0 B/S: -

MARK E MCGOVERN

28,449 shares

Net: 0 B/S: -

Mark A Glickman

25,925 shares

Net: 0 B/S: -

DANIEL JANNEY

23,449 shares

Net: 0 B/S: -

Ashley Hall

22,500 shares

Net: 0 B/S: -

Jeffrey Berkowitz

20,000 shares

Net: 0 B/S: -

GILBERT S OMENN

14,000 shares

Net: 0 B/S: -

Robert E. Hoffman

5,280 shares

Net: 0 B/S: -

DOV A MD GOLDSTEIN

5,047 shares

Net: 0 B/S: -

Scott Braunstein

5,019 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
BIOTECH AG BB	4,477,964	0	-
TARGET N V BIOTECH	3,947,964	0	-
Sheldon L. Koenig	2,172,699	+591,037	5.45
Capital, LLC Boxer	1,134,750	0	-
Benjamin Halladay	713,602	+219,383	8.82
Benjamin Looker	679,348	+271,685	10.32
ROGER S NEWTON	548,726	0	-
John B. Jr. Harlow	424,536	+424,536	∞
Eric Warren	370,218	0	-
Joanne M. Foody	272,862	0	-
TIMOTHY M MAYLEBEN	175,000	0	-
Mary McGowan	140,000	0	-
J MARTIN CARROLL	97,650	0	-
NICOLE VITULLO	88,000	0	-
Tracy M Woody	88,000	0	-
Jay Shepard	84,599	0	-
Richard Bartram	82,751	0	-
STEPHEN ROCAMBOLI	69,261	0	-
Seth H. Z. Fischer	61,150	0	-
Alan Fuhrman	53,404	0	-
ANTONIO M JR MD D PHIL GOTTO	51,599	0	-
JOHN CRAIG THOMPSON	40,000	+40,000	∞
Narendra D. Lalwani	36,000	0	-
MARK E MCGOVERN	28,449	0	-
Mark A Glickman	25,925	0	-
DANIEL JANNEY	23,449	0	-
Ashley Hall	22,500	0	-
Jeffrey Berkowitz	20,000	0	-
GILBERT S OMENN	14,000	0	-
Robert E. Hoffman	5,280	0	-
DOV A MD GOLDSTEIN	5,047	0	-
Scott Braunstein	5,019	0	-

Individual Transactions

March 17, 2026

Benjamin Halladay

Open Market Sale

Change: -6,424

Price: $2.71

Shares: 713,602

Value: -$17,376

Benjamin Looker

Open Market Sale

Change: -5,708

Price: $2.70

Shares: 679,348

Value: -$15,428

Sheldon L. Koenig

Open Market Sale

Change: -25,578

Price: $2.72

Shares: 2,172,699

Value: -$69,546

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Halladay	Mar 18	Open Market Sale (S) Market Sale	713,602	-6,424	$2.71	-$17,376
Benjamin Looker	Mar 18	Open Market Sale (S) Market Sale	679,348	-5,708	$2.70	-$15,428
Sheldon L. Koenig	Mar 18	Open Market Sale (S) Market Sale	2,172,699	-25,578	$2.72	-$69,546

March 13, 2026

Benjamin Looker

Grant/Award Acquisition

Change: +300,840

Price: $0.00

Shares: 685,056

Value: +$0

Sheldon L. Koenig

Grant/Award Acquisition

Change: +723,760

Price: $0.00

Shares: 2,198,277

Value: +$0

Benjamin Halladay

Grant/Award Acquisition

Change: +247,430

Price: $0.00

Shares: 720,026

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Looker	Mar 16	Grant/Award Acquisition (A) Compensation/Award	685,056	+300,840	$0.00	+$0
Sheldon L. Koenig	Mar 16	Grant/Award Acquisition (A) Compensation/Award	2,198,277	+723,760	$0.00	+$0
Benjamin Halladay	Mar 16	Grant/Award Acquisition (A) Compensation/Award	720,026	+247,430	$0.00	+$0

January 20, 2026

Benjamin Looker

Open Market Sale

Change: -1,689

Price: $2.88

Shares: 384,216

Value: -$4,867

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Looker	Jan 21	Open Market Sale (S) Market Sale	384,216	-1,689	$2.88	-$4,867

December 17, 2025

Sheldon L. Koenig

Open Market Sale

Change: -48,244

Price: $3.67

Shares: 1,470,587

Value: -$177,200

Benjamin Halladay

Open Market Sale

Change: -7,337

Price: $3.67

Shares: 467,525

Value: -$26,904

Benjamin Looker

Open Market Sale

Change: -6,517

Price: $3.67

Shares: 385,905

Value: -$23,897

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Sheldon L. Koenig	Dec 18	Open Market Sale (S) Market Sale	1,470,587	-48,244	$3.67	-$177,200
Benjamin Halladay	Dec 18	Open Market Sale (S) Market Sale	467,525	-7,337	$3.67	-$26,904
Benjamin Looker	Dec 18	Open Market Sale (S) Market Sale	385,905	-6,517	$3.67	-$23,897

December 04, 2025

John B. Jr. Harlow

Grant/Award Acquisition

Change: +424,536

Price: $0.00

Shares: 424,536

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
John B. Jr. Harlow	Dec 08	Grant/Award Acquisition (A) Compensation/Award	424,536	+424,536	$0.00	+$0

October 17, 2025

Benjamin Looker

Open Market Sale

Change: -1,248

Price: $2.62

Shares: 392,422

Value: -$3,275

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Looker	Oct 20	Open Market Sale (S) Market Sale	392,422	-1,248	$2.62	-$3,275

September 17, 2025

Benjamin Halladay

Open Market Sale

Change: -7,046

Price: $2.81

Shares: 474,862

Value: -$19,785

Benjamin Looker

Open Market Sale

Change: -6,267

Price: $2.80

Shares: 393,670

Value: -$17,572

Sheldon L. Koenig

Open Market Sale

Change: -28,427

Price: $2.79

Shares: 1,518,831

Value: -$79,254

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Halladay	Sep 18	Open Market Sale (S) Market Sale	474,862	-7,046	$2.81	-$19,785
Benjamin Looker	Sep 18	Open Market Sale (S) Market Sale	393,670	-6,267	$2.80	-$17,572
Sheldon L. Koenig	Sep 18	Open Market Sale (S) Market Sale	1,518,831	-28,427	$2.79	-$79,254

July 17, 2025

Benjamin Looker

Open Market Sale

Change: -1,304

Price: $1.13

Shares: 399,937

Value: -$1,469

Benjamin Halladay

Open Market Sale

Change: -11

Price: $1.12

Shares: 474,462

Value: -$12

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Looker	Jul 18	Open Market Sale (S) Market Sale	399,937	-1,304	$1.13	-$1,469
Benjamin Halladay	Jul 18	Open Market Sale (S) Market Sale	474,462	-11	$1.12	-$12

July 01, 2025

JOHN CRAIG THOMPSON

Grant/Award Acquisition

Change: +40,000

Price: $0.00

Shares: 40,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
JOHN CRAIG THOMPSON	Jul 02	Grant/Award Acquisition (A) Compensation/Award	40,000	+40,000	$0.00	+$0

June 17, 2025

Benjamin Looker

Open Market Sale

Change: -6,422

Price: $1.15

Shares: 401,241

Value: -$7,398

Sheldon L. Koenig

Open Market Sale

Change: -30,474

Price: $1.11

Shares: 1,541,488

Value: -$33,795

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Benjamin Looker	Jun 18	Open Market Sale (S) Market Sale	401,241	-6,422	$1.15	-$7,398
Sheldon L. Koenig	Jun 18	Open Market Sale (S) Market Sale	1,541,488	-30,474	$1.11	-$33,795