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$MRKR

$1.44 +$0.02 (1.41%)

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Insider Transactions

Insider Transaction Summary

Carmen Chang

10,714,285 shares

Net: 0 B/S: -

Paul Edward Walker

10,714,285 shares

Net: 0 B/S: -

SCOTT D SANDELL

10,714,285 shares

Net: 0 B/S: -

Enterprise Associates 16, L.P. New

10,714,285 shares

Net: 0 B/S: -

JOSHUA MAKOWER

10,714,285 shares

Net: 0 B/S: -

Peter W. Sonsini

10,714,285 shares

Net: 0 B/S: -

Mohamad Makhzoumi

10,714,285 shares

Net: 0 B/S: -

Anthony A. Jr. Florence

10,714,285 shares

Net: 0 B/S: -

FOREST BASKETT

10,714,285 shares

Net: 0 B/S: -

KENNETH BRYAN DART

5,300,002 shares

Net: 0 B/S: -

Ali Behbahani

1,625,678 shares

Net: 0 B/S: -

Peter L. Hoang

483,286 shares

Net: 0 B/S: -

Juan Vera

250,000 shares

Net: +250,000 B/S: ∞

Joshua Silverman

153,333 shares

Net: 0 B/S: -

Kathryn Penkus Corzo

147,611 shares

Net: +147,611 B/S: ∞

Anthony H. Kim

114,436 shares

Net: 0 B/S: -

Katharine Knobil

84,411 shares

Net: +84,411 B/S: ∞

STEVE ELMS

84,411 shares

Net: +84,411 B/S: ∞

Norman David Eansor

84,411 shares

Net: +84,411 B/S: ∞

David Laskow-Pooley

80,000 shares

Net: 0 B/S: -

Frederick Gerald Wasserman

65,223 shares

Net: 0 B/S: -

Mythili Koneru

51,918 shares

Net: 0 B/S: -

Gerald Garrett

40,000 shares

Net: 0 B/S: -

Michael Loiacono

38,480 shares

Net: 0 B/S: -

Mark Reddish

36,110 shares

Net: 0 B/S: -

Nadia Agopyan

34,154 shares

Net: 0 B/S: -

Tsvetelina P Hoang

33,159 shares

Net: 0 B/S: -

Anna Szymanska

29,947 shares

Net: 0 B/S: -

JOHN N BONFIGLIO

26,054 shares

Net: 0 B/S: -

Sherry Grisewood

15,476 shares

Net: 0 B/S: -

John Robert Wilson

8,000 shares

Net: 0 B/S: -

Capital LTD Eastern

0 shares

Net: 0 B/S: -

GLYNN WILSON

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
Carmen Chang	10,714,285	0	-
Paul Edward Walker	10,714,285	0	-
SCOTT D SANDELL	10,714,285	0	-
Enterprise Associates 16, L.P. New	10,714,285	0	-
JOSHUA MAKOWER	10,714,285	0	-
Peter W. Sonsini	10,714,285	0	-
Mohamad Makhzoumi	10,714,285	0	-
Anthony A. Jr. Florence	10,714,285	0	-
FOREST BASKETT	10,714,285	0	-
KENNETH BRYAN DART	5,300,002	0	-
Ali Behbahani	1,625,678	0	-
Peter L. Hoang	483,286	0	-
Juan Vera	250,000	+250,000	∞
Joshua Silverman	153,333	0	-
Kathryn Penkus Corzo	147,611	+147,611	∞
Anthony H. Kim	114,436	0	-
Katharine Knobil	84,411	+84,411	∞
STEVE ELMS	84,411	+84,411	∞
Norman David Eansor	84,411	+84,411	∞
David Laskow-Pooley	80,000	0	-
Frederick Gerald Wasserman	65,223	0	-
Mythili Koneru	51,918	0	-
Gerald Garrett	40,000	0	-
Michael Loiacono	38,480	0	-
Mark Reddish	36,110	0	-
Nadia Agopyan	34,154	0	-
Tsvetelina P Hoang	33,159	0	-
Anna Szymanska	29,947	0	-
JOHN N BONFIGLIO	26,054	0	-
Sherry Grisewood	15,476	0	-
John Robert Wilson	8,000	0	-
Capital LTD Eastern	0	0	-
GLYNN WILSON	0	0	-

Individual Transactions

November 17, 2025

STEVE ELMS

Grant/Award Acquisition

Change: +84,411

Price: $0.00

Shares: 84,411

Value: +$0

Norman David Eansor

Grant/Award Acquisition

Change: +84,411

Price: $0.00

Shares: 84,411

Value: +$0

Katharine Knobil

Grant/Award Acquisition

Change: +84,411

Price: $0.00

Shares: 84,411

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
STEVE ELMS	Nov 19	Grant/Award Acquisition (A) Compensation/Award	84,411	+84,411	$0.00	+$0
Norman David Eansor	Nov 19	Grant/Award Acquisition (A) Compensation/Award	84,411	+84,411	$0.00	+$0
Katharine Knobil	Nov 19	Grant/Award Acquisition (A) Compensation/Award	84,411	+84,411	$0.00	+$0

October 31, 2025

Kathryn Penkus Corzo

Grant/Award Acquisition

Change: +147,611

Price: $0.00

Shares: 147,611

Value: +$0

Juan Vera

Grant/Award Acquisition

Change: +250,000

Price: $0.00

Shares: 250,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Kathryn Penkus Corzo	Nov 04	Grant/Award Acquisition (A) Compensation/Award	147,611	+147,611	$0.00	+$0
Juan Vera	Nov 04	Grant/Award Acquisition (A) Compensation/Award	250,000	+250,000	$0.00	+$0

February 12, 2025

Juan Vera

Grant/Award Acquisition

Change: +50,000

Price: $0.00

Shares: 50,000

Value: +$0

STEVE ELMS

Grant/Award Acquisition

Change: +30,000

Price: $0.00

Shares: 30,000

Value: +$0

Katharine Knobil

Grant/Award Acquisition

Change: +30,000

Price: $0.00

Shares: 30,000

Value: +$0

Norman David Eansor

Grant/Award Acquisition

Change: +30,000

Price: $0.00

Shares: 30,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Juan Vera	Feb 14	Grant/Award Acquisition (A) Compensation/Award	50,000	+50,000	$0.00	+$0
STEVE ELMS	Feb 14	Grant/Award Acquisition (A) Compensation/Award	30,000	+30,000	$0.00	+$0
Katharine Knobil	Feb 14	Grant/Award Acquisition (A) Compensation/Award	30,000	+30,000	$0.00	+$0
Norman David Eansor	Feb 14	Grant/Award Acquisition (A) Compensation/Award	30,000	+30,000	$0.00	+$0

December 23, 2024

STEVE ELMS

Open Market Purchase

Change: +11,085

Price: $3.20

Shares: 325,370

Value: +$35,472

Ali Behbahani

Open Market Purchase

Change: +554,250

Price: $3.20

Shares: 1,625,678

Value: +$1,773,600

Insider	Filing Date	Transaction	Shares	Change	Price	Value
STEVE ELMS	Dec 26	Open Market Purchase (P) Market Purchase	325,370	+11,085	$3.20	+$35,472
Ali Behbahani	Dec 23	Open Market Purchase (P) Market Purchase	1,625,678	+554,250	$3.20	+$1,773,600

June 06, 2023

Norman David Eansor

Grant/Award Acquisition

Change: +8,000

Price: $0.00

Shares: 8,000

Value: +$0

John Robert Wilson

Grant/Award Acquisition

Change: +8,000

Price: $0.00

Shares: 8,000

Value: +$0

STEVE ELMS

Grant/Award Acquisition

Change: +8,000

Price: $0.00

Shares: 8,000

Value: +$0

Katharine Knobil

Grant/Award Acquisition

Change: +8,000

Price: $0.00

Shares: 8,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Norman David Eansor	Jun 08	Grant/Award Acquisition (A) Compensation/Award	8,000	+8,000	$0.00	+$0
John Robert Wilson	Jun 08	Grant/Award Acquisition (A) Compensation/Award	8,000	+8,000	$0.00	+$0
STEVE ELMS	Jun 08	Grant/Award Acquisition (A) Compensation/Award	8,000	+8,000	$0.00	+$0
Katharine Knobil	Jun 08	Grant/Award Acquisition (A) Compensation/Award	8,000	+8,000	$0.00	+$0

May 10, 2023

Juan Vera

Grant/Award Acquisition

Change: +100,000

Price: $0.00

Shares: 100,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Juan Vera	May 11	Grant/Award Acquisition (A) Compensation/Award	100,000	+100,000	$0.00	+$0

February 27, 2023

Tsvetelina P Hoang

Grant/Award Acquisition

Change: +33,159

Price: $0.00

Shares: 33,159

Value: +$0

Mythili Koneru

Grant/Award Acquisition

Change: +51,918

Price: $0.00

Shares: 51,918

Value: +$0

Juan Vera

Grant/Award Acquisition

Change: +46,487

Price: $0.00

Shares: 46,487

Value: +$0

Michael Loiacono

Grant/Award Acquisition

Change: +38,480

Price: $0.00

Shares: 38,480

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Tsvetelina P Hoang	Mar 01	Grant/Award Acquisition (A) Compensation/Award	33,159	+33,159	$0.00	+$0
Mythili Koneru	Mar 01	Grant/Award Acquisition (A) Compensation/Award	51,918	+51,918	$0.00	+$0
Juan Vera	Mar 01	Grant/Award Acquisition (A) Compensation/Award	46,487	+46,487	$0.00	+$0
Michael Loiacono	Mar 01	Grant/Award Acquisition (A) Compensation/Award	38,480	+38,480	$0.00	+$0