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Keros Therapeutics, Inc.

KROS Net selling
CIK 0001664710 #3893 in the set updated 17 Sep 2026
Bought (12 mo)
$75.77K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$181.16M
$95.67K on a plan · $0.00 straight out of an exercise
Sold at will
$181.06M
14 of 19 sales
Net
−$181.08M
−$180.99M against sales at will

By person

20 insiders · 26 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
ADAR1 Capital Management, LLC entity
10% owner
$95.66M (3)
−$95.66M
0
$0.00
−100.0%
Pontifax Management 4 G.P. (2015) Ltd. entity
10% owner
$84.98M (4)
−$84.98M
0
$0.00
−100.0%
Cho Esther
Chief Legal Officer
$123.73K (2)
−$123.73K
35,770
$368.43K
−20.5%
Seehra Jasbir
CHIEF EXECUTIVE OFFICER
$113.43K (1)
−$113.43K
440,708
$4.54M
+74.3%
Lerner Lorena Raquel
Chief Scientific Officer
$100.04K (2)
−$100.04K
27,559
$283.86K
−21.3%
Regnante Keith
CHIEF FINANCIAL OFFICER
$77.48K (1)
−$77.48K
39,261
$404.39K
BIENAIME JEAN JACQUES
Director
$75.77K (6)
+$75.77K
19,592
$201.80K
+9,696%
Farzan Nima
Director
$28.17K (1) scheduled
−$28.17K
9,767
$100.60K
Knowles Julius
Director
$28.17K (1) scheduled
−$28.17K
113,191
$1.17M
−73.4%
Seth Alpna
Director
$28.14K (1) scheduled
−$28.14K
9,767
$100.60K
Tanini Annita
Corp. Controller & VP, Finance
$12.59K (1)
−$12.59K
45,144
$464.98K
−2.6%
Newton Charles W.
Director
$11.20K (2) scheduled
−$11.20K
12,114
$124.77K
Rovaldi Christopher
Chief Operating Officer
60,000
$618.00K
GORDON CARL L
Director
50,307
$518.16K
−80.6%
ORBIMED ADVISORS LLC entity
Director
45,057
$464.09K
−82.6%
CHYUNG YUNG H.
Chief Medical Officer
44,000
$453.20K
Prener Anne
Director
13,786
$142.00K
GRAY MARY ANN
Director
12,392
$127.64K
Nussbaum Ran
Director
5,250
$54.08K
Kariv Tomer
Director
5,250
$54.08K

No percentages here. This company's share count has moved by a factor of 2.1 over the window, from 19,717,533 to 40,615,414 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Cho Esther
18 Aug 2026
Chief Legal Officer
Sell
4,485
$10.29
$46.15K
Lerner Lorena Raquel
18 Aug 2026
Chief Scientific Officer
Sell
3,568
$10.29
$36.71K
Tanini Annita
18 Aug 2026
Corp. Controller & VP, Finance
Sell
1,224
$10.29
$12.59K
Seehra Jasbir
19 Feb 2026
CHIEF EXECUTIVE OFFICER
Sell
7,015
$16.17
$113.43K
Regnante Keith
18 Feb 2026
CHIEF FINANCIAL OFFICER
Sell
4,739
$16.35
$77.48K
Cho Esther
18 Feb 2026
SVP, General Counsel
Sell
4,745
$16.35
$77.58K
Lerner Lorena Raquel
18 Feb 2026
Chief Science Officer
Sell
3,873
$16.35
$63.32K
ADAR1 Capital Management, LLC
15 Oct 2025
10% owner
Sell indirect
743,358
$17.75
$13.19M
ADAR1 Capital Management, LLC
15 Oct 2025
10% owner
Sell indirect
254,669
$17.75
$4.52M
ADAR1 Capital Management, LLC
15 Oct 2025
10% owner
Sell indirect
4,391,237
$17.75
$77.94M
Pontifax Management 4 G.P. (2015) Ltd.
15 Oct 2025
10% owner
Sell indirect
155,262
$17.75
$2.76M
Pontifax Management 4 G.P. (2015) Ltd.
15 Oct 2025
10% owner
Sell indirect
1,226,412
$17.75
$21.77M
Pontifax Management 4 G.P. (2015) Ltd.
15 Oct 2025
10% owner
Sell indirect
1,121,045
$17.75
$19.90M
Pontifax Management 4 G.P. (2015) Ltd.
15 Oct 2025
10% owner
Sell indirect
2,284,612
$17.75
$40.55M

What was left out

Form 4 filings counted 36
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 3
Sales on a Rule 10b5-1 plan 5
Sales straight out of an exercise 0
Sales at will 14
Transactions with no price 0
Shares from compensation/vesting 868,776
History held since 8 Apr 2020