ADAR1 Capital Management, LLC

KROS

ADAR1 Capital Management, LLC serves as 10 percent owner at Keros Therapeutics, Inc. (KROS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

7 trades

$13.87M

Total Sells

1 trades

$95.66M

Net Position

Net Seller

$81.79M

Companies Traded

NXTC, RLYB, KROS, PVLA

Active Period

Aug 2024 – Jul 2026

8 total trades

Most Recent

Buy NXTC

Jul 29, 2026 · $87.7K

ADAR1 Capital Management, LLC's Insider Trading at Keros Therapeutics, Inc. (KROS)

Buys

1 · $9.46M

Sells

1 · $95.66M

Total Shares Bought

934,258

Total Shares Sold

5,389,264

KROS Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Oct 15, 2025	Sell	5,389,264	$17.75	$95.66M	0
Apr 11, 2025	Buy	934,258	$10.13	$9.46M	4,392,737

ADAR1 Capital Management, LLC's Insider Trading at Rallybio Corporation (RLYB)

Buys

4 · $4.23M

Sells

0 · $0.00

Total Shares Bought

302,473

Total Shares Sold

RLYB Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
May 20, 2026	Buy	16,209	$13.98	$226.6K	926,352
May 15, 2026	Buy	79,559	$13.99	$1.11M	910,143
May 13, 2026	Buy	50,800	$14.00	$711.1K	830,584
May 6, 2026	Buy	155,905	$13.97	$2.18M	779,784

ADAR1 Capital Management, LLC's Insider Trading at Palvella Therapeutics, Inc. (PVLA)

Buys

1 · $92.3K

Sells

0 · $0.00

Total Shares Bought

6,000

Total Shares Sold

PVLA Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 12, 2024	Buy	6,000	$15.39	$92.3K	129,574

ADAR1 Capital Management, LLC's Insider Trading at NextCure, Inc. (NXTC)

Buys

1 · $87.7K

Sells

0 · $0.00

Total Shares Bought

17,608

Total Shares Sold

NXTC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Jul 29, 2026	Buy	17,608	$4.98	$87.7K	393,266

Related Insiders

BIENAIME JEAN JACQUES

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KROSBuy · Jul 17, 2026

Charles W. Newton

director

KROSSell · Jun 15, 2026

Nima Farzan

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KROSSell · Jun 8, 2026

Julius Knowles

director

KROSSell · Jun 8, 2026

Seth Alpna

director

KROSSell · Jun 5, 2026

Jasbir Seehra

CHIEF EXECUTIVE OFFICER

KROSSell · Feb 19, 2026

Jonathan I Lieber

Chief Financial Officer

RLYBSell · Feb 18, 2026

Lorena Raquel Lerner

Chief Science Officer

KROSSell · Feb 18, 2026

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