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Aktis Oncology, Inc.

AKTS Net buying
CIK 0002035832 #2335 in the set updated 17 Sep 2026
Bought (12 mo)
$114.31M
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$2.97M
$0.00 on a plan · $2.97M straight out of an exercise
Sold at will
$0.00
0 of 9 sales
Net
+$111.34M
+$114.31M against sales at will

By person

10 insiders · 18 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
EcoR1 Capital, LLC entity
Director
$40.00M (2)
+$40.00M
347,305
$8.53M
GADICKE ANSBERT
10% owner
$20.03M (1)
+$20.03M
10,260,064
$252.01M
+2,903%
MPM BIOVENTURES 2018, L.P.
10% owner
$20.03M (1)
+$20.03M
10,260,064
$252.01M
+2,903%
Kim Helen Susan
Director
$15.03M (2)
+$15.03M
157,387
$3.87M
Vida Ventures II, LLC entity
10% owner
$15.03M (2)
+$15.03M
157,387
$3.87M
Foley Todd
Director
$4.19M (1)
+$4.19M
4,235,403
$104.03M
Czibere Akos
Chief Medical Officer
$1.39M (3) scheduled
−$1.39M
0
$0.00
Ron-Bigger Shulamit
Chief Operating Officer
$1.39M (3) scheduled
−$1.39M
0
$0.00
Herrmann Ken
Director
$196.53K (3) scheduled
−$196.53K
0
$0.00
Segal Lloyd Mitchell
Director
19,631
$482.18K

No percentages here. This company's share count has moved by a factor of 58.4 over the window, from 915,261 to 53,446,222 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
Kim Helen Susan
12 Jan 2026
Director
Buy indirect
22,545
$18.00
$405.81K
Kim Helen Susan
12 Jan 2026
Director
Buy indirect
812,455
$18.00
$14.62M
Vida Ventures II, LLC
12 Jan 2026
10% owner
Buy indirect
22,545
$18.00
$405.81K
Vida Ventures II, LLC
12 Jan 2026
10% owner
Buy indirect
812,455
$18.00
$14.62M
EcoR1 Capital, LLC
12 Jan 2026
Director
Buy indirect
144,443
$18.00
$2.60M
EcoR1 Capital, LLC
12 Jan 2026
Director
Buy indirect
2,077,779
$18.00
$37.40M
GADICKE ANSBERT
12 Jan 2026
10% owner
Buy indirect
1,112,777
$18.00
$20.03M
MPM BIOVENTURES 2018, L.P.
12 Jan 2026
10% owner
Buy indirect
1,112,777
$18.00
$20.03M
Foley Todd
12 Jan 2026
Director
Buy indirect
232,870
$18.00
$4.19M

What was left out

Form 4 filings counted 12
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 4
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 9
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 34,331,912
History held since 12 Jan 2026