Aktis Oncology, Inc.
AKTS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0002035832
In the last 90 days, Aktis Oncology, Inc. insiders filed 0 open-market purchases and 5 sales; 113 institutions reported holding it in 13F filings for Q2 2026, worth $1.10B in total; Soros Fund Management is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Aktis Oncology, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 5 filings
- 3 insiders, $3.23M in total
- Insiders trading
- 3
- Net value
- −$3.23M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Aktis Oncology, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Czibere Akos | Chief Medical Officer | 0 | Sep 24, 2026 | 2 |
| Herrmann Ken | Director | 0 | Jul 21, 2026 | 2 |
| Ron-Bigger Shulamit | Chief Operating Officer | 0 | Jul 10, 2026 | 1 |
| Gormley Glenn | Director | – | Apr 16, 2026 | 1 |
| Evnin Luke | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM Oncology Innovations Fund LP | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM Bioventures 2018 (B), L.P. | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM Bioventures 2018, L.P. | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM Asset Management Investors BV2018 LLC | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM BioVentures 2018 GP LLC | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM BioVentures 2018 LLC | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM Oncology Innovations Fund GP LLC | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| Gadicke Ansbert | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| MPM Asset Management LLC | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| Oncology Impact Private Investment Fund 2, L.P. | 10% Owner | 10,260,064Indirect | Jan 14, 2026 | 1 |
| Foley Todd | Director, 10% Owner | 4,235,403Indirect | Jan 14, 2026 | 1 |
| Nodelman Oleg | Director | 347,305Indirect | Jan 12, 2026 | 1 |
| EcoR1 Capital, LLC | Director | 347,305Indirect | Jan 12, 2026 | 1 |
| Vida Ventures II, LLC | 10% Owner | 157,387Indirect | Jan 12, 2026 | 1 |
| Vida Ventures II-A, LLC | 10% Owner | 157,387Indirect | Jan 12, 2026 | 1 |
| Kim Helen Susan | Director, 10% Owner | 157,387Indirect | Jan 12, 2026 | 1 |
| Segal Lloyd Mitchell | Director | 19,631Indirect | Jan 12, 2026 | 1 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 24, 2026 (view filing)4:05 PM ET | Sep 23 | 1 day | Czibere AkosChief Medical Officer | SSale | −12.5K | $20.69 | −$258.6K | −100.0%0 after | 2 lots10b5-1 |
| Jul 21, 2026 (view filing)8:50 PM ET | Jul 20 | 1 day | Herrmann KenDirector | SSale | −4.86K | $24.56 | −$119.3K | −100.0%0 after | 2 lots |
| Jul 20, 2026 (view filing)5:34 PM ET | Jul 17 | 3 days | Herrmann KenDirector | SSale | −3.06K | $25.21 | −$77.3K | −100.0%0 after | |
| Jul 10, 2026 (view filing)6:11 AM ET | Jul 8 | 2 days | Ron-Bigger ShulamitChief Operating Officer | SSale | −50.0K | $27.75 | −$1.39M | −100.0%0 after | 3 lots |
| Jul 10, 2026 (view filing)6:10 AM ET | Jul 8 | 2 days | Czibere AkosChief Medical Officer | SSale | −50.0K | $27.77 | −$1.39M | −100.0%0 after | 3 lots |
| Jan 14, 2026 (view filing)6:19 PM ET | Jan 12 | 2 days | Evnin Luke and 7 others10% Owner | PPurchase | +1.11M | $18.00 | +$20.0M | +12.2%10.3M after | Duplicate filing |
| Jan 14, 2026 (view filing)6:17 PM ET | Jan 12 | 2 days | Gadicke Ansbert and 2 others10% Owner | PPurchase | +1.11M | $18.00 | +$20.0M | +12.2%10.3M after | |
| Jan 14, 2026 (view filing) | Jan 12 | 2 days | Foley ToddDirector, 10% Owner | PPurchase | +232.9K | $18.00 | +$4.19M | +5.8%4.24M after | |
| Jan 12, 2026 (view filing)8:28 PM ET | Jan 12 | Same day | Nodelman Oleg and 1 otherDirector | PPurchase | +2.22M | $18.00 | +$40.0M | New position347.3K after | 2 lots |
| Jan 12, 2026 (view filing)5:10 PM ET | Jan 12 | Same day | Vida Ventures II, LLC and 1 other10% Owner | PPurchase | +835.0K | $18.00 | +$15.0M | New position157.4K after | 2 lotsDuplicate filing |
| Jan 12, 2026 (view filing) | Jan 12 | Same day | Kim Helen SusanDirector, 10% Owner | PPurchase | +835.0K | $18.00 | +$15.0M | New position157.4K after | 2 lots |