iTeos Therapeutics, Inc.
Total Trades
40
Buys
4
Sells
25
Largest Trade
$1M+
Insiders
12
Institutional Funds
1
Inst. Value
$1K–$15K
Activist Filings
46
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Detheux Michel | CEO | EXERCISE | $500K+ | 217K | $4.30 | Jun 12, 2025 |
| Detheux Michel | CEO | SELL | $1M+ | 105K | $10.03 | Jun 12, 2025 |
| Detheux Michel | CEO | SELL | $1M+ | 157K | $10.15 | Jun 7, 2025 |
| Detheux Michel | CEO | EXERCISE | $500K+ | 157K | $4.30 | Jun 7, 2025 |
| Hallal David | Director | SELL | $1M+ | 115K | $10.15 | Jun 7, 2025 |
| Hallal David | Director | EXERCISE | $100K–$500K | 115K | $4.30 | Jun 7, 2025 |
| EcoR1 Capital, LLC | 10% Owner | BUY | $1M+ | 5.0M | $7.80 | May 16, 2025 |
| GADICKE ANSBERT | Insider | SELL | $1M+ | 1.0M | $8.06 | May 15, 2025 |
| MPM BIOVENTURES 2018, L.P. | Insider | SELL | $1M+ | 630K | $8.06 | May 15, 2025 |
| MPM BioVentures 2014, L.P. | Insider | SELL | $1M+ | 630K | $8.06 | May 15, 2025 |
| Gall Matthew | CFO | BUY | $15K–$50K | 5K | $7.73 | Nov 20, 2024 |
| Gall Matthew | CFO | BUY | $15K–$50K | 5K | $8.37 | Oct 12, 2023 |
| Boxer Capital, LLC | Insider | SELL | $1M+ | 350K | $16.26 | Aug 26, 2023 |
| Hallal David | Director | EXERCISE | $100K–$500K | 30K | $3.72 | Jun 10, 2022 |
| Hallal David | Director | SELL | $500K+ | 30K | $20.17 | Jun 10, 2022 |
| Davis Aaron I. | Director | SELL | $1M+ | 663K | $21.04 | May 12, 2022 |
| Davis Aaron I. | Director | SELL | $1M+ | 375K | $27.33 | May 3, 2022 |
| Detheux Michel | CEO | SELL | $100K–$500K | 12K | $31.87 | Apr 19, 2022 |
| Detheux Michel | CEO | EXERCISE | $15K–$50K | 12K | $4.23 | Apr 19, 2022 |
| Davis Aaron I. | Director | BUY | $1M+ | 50K | $32.51 | Mar 25, 2022 |
| Detheux Michel | CEO | SELL | $500K+ | 18K | $34.17 | Mar 23, 2022 |
| Boxer Capital, LLC | 10% Owner | SELL | $1M+ | 575K | $35.25 | Mar 19, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | EXERCISE | $15K–$50K | 4K | $4.30 | Mar 15, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | SELL | $100K–$500K | 4K | $36.01 | Mar 15, 2022 |
| McGrath Yvonne | Chief Scientific O… | SELL | $100K–$500K | 10K | $36.76 | Mar 3, 2022 |
| McGrath Yvonne | Chief Scientific O… | EXERCISE | $15K–$50K | 10K | $4.24 | Mar 3, 2022 |
| Detheux Michel | CEO | SELL | $100K–$500K | 15K | $34.34 | Feb 25, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | SELL | $100K–$500K | 4K | $35.85 | Feb 15, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | EXERCISE | $15K–$50K | 4K | $4.30 | Feb 15, 2022 |
| Detheux Michel | CEO | SELL | $500K+ | 15K | $35.68 | Jan 27, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | SELL | $100K–$500K | 4K | $39.32 | Jan 19, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | EXERCISE | $15K–$50K | 4K | $4.30 | Jan 19, 2022 |
| MPM BIOVENTURES 2018, L.P. | 10% Owner | SELL | $1M+ | 147K | $42.58 | Jan 6, 2022 |
| MPM BioVentures 2014, L.P. | 10% Owner | SELL | $1M+ | 147K | $42.58 | Jan 6, 2022 |
| GADICKE ANSBERT | 10% Owner | SELL | $1M+ | 245K | $42.58 | Jan 6, 2022 |
| Boxer Capital, LLC | Director | SELL | $1M+ | 700K | $46.54 | Jan 6, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | EXERCISE | $15K–$50K | 7K | $4.30 | Jan 5, 2022 |
| Lager Joanne Jenkins | Chief Medical Offi… | SELL | $100K–$500K | 7K | $51.90 | Jan 5, 2022 |
| Biniszkiewicz Detlev | Director | EXERCISE | $50K–$100K | 4K | $19.00 | Jan 5, 2022 |
| Biniszkiewicz Detlev | Director | SELL | $100K–$500K | 4K | $51.90 | Jan 5, 2022 |
Institutional Ownership
13F filings as of Sep 30, 2025 · 1 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| IFP Advisors, Inc | 217 | $1K–$15K | SH |
| IFP Advisors, Inc | 232 | $1K–$15K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Ridgeback Capital Investments L.P.
SC 13G/A · Nov 14, 2025
0.0%
0 shares
SC 13D/A · Sep 3, 2025
100.0%
10K shares
SC 13G/A · Aug 14, 2025
0.0%
0 shares
Ridgeback Capital Investments L.P.
SC 13G · Jul 25, 2025
5.1%
1.9M shares
SC 13D/A · Jul 22, 2025
10.0%
3.8M shares
SC 13D · Jun 12, 2025
10.0%
3.8M shares
Ridgeback Capital Investments L.P.
SC 13G · Jun 4, 2025
3.8%
1.4M shares
SC 13D/A · May 19, 2025
4.9%
2.1M shares
SC 13D · May 16, 2025
27.9%
10.7M shares
SC 13D/A · May 15, 2025
1.6%
621K shares
SC 13G/A · May 15, 2025
4.1%
1.6M shares
SC 13G · May 15, 2025
10.0%
3.8M shares
SC 13D/A · May 14, 2025
9.9%
4.2M shares
SC 13G/A · May 13, 2025
14.9%
5.7M shares
SC 13G · May 8, 2025
6.9%
2.7M shares
SC 13G/A · Apr 24, 2025
5.7%
2.2M shares
BlackRock Portfolio Management LLC
SC 13G · Apr 15, 2025
6.1%
2.3M shares
SC 13G/A · Feb 14, 2025
0.6%
222K shares
Biotechnology Value Fund, L.P.
SC 13G · Nov 22, 2024
3.3%
1.2M shares
SC 13D/A · Nov 19, 2024
2.8%
1.0M shares
SC 13D/A · Nov 19, 2024
2.8%
1.0M shares
SC 13G/A · Nov 14, 2024
4.4%
1.6M shares
SC 13G/A · Nov 8, 2024
10.6%
3.9M shares
SC 13G/A · Oct 21, 2024
10.6%
3.9M shares
SC 13D/A · Oct 16, 2024
0.0%
0 shares
SC 13D/A · Oct 15, 2024
0.0%
0 shares
SC 13G · Sep 30, 2024
6.6%
2.4M shares
SC 13D/A · May 15, 2024
8.1%
2.9M shares
SC 13D/A · May 15, 2024
10.0%
3.7M shares
SC 13G · Feb 16, 2024
5.4%
1.9M shares
Biotechnology Value Fund, L.P.
SC 13G/A · Feb 14, 2024
1.9%
672K shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
4.2%
1.5M shares
SC 13G/A · Jan 23, 2024
11.9%
4.3M shares
SC 13G/A · Jan 9, 2024
2.7%
967K shares
SC 13G · Oct 24, 2023
5.8%
2.1M shares
SC 13G/A · Feb 14, 2023
0.0%
0 shares
Biotechnology Value Fund, L.P.
SC 13G/A · Feb 13, 2023
2.7%
975K shares
SC 13G/A · Jan 26, 2023
12.6%
4.5M shares
SC 13G/A · Jan 20, 2023
12.6%
4.5M shares
SC 13G · Jul 8, 2022
10.5%
3.7M shares
SC 13D/A · May 11, 2022
6.1%
2.2M shares
Biotechnology Value Fund, L.P.
SC 13G · May 2, 2022
2.9%
1.0M shares
SC 13D/A · Mar 19, 2022
8.9%
3.1M shares
SC 13G/A · Feb 14, 2022
6.7%
2.4M shares
Janus Henderson Group plc EIN #00-0000000
SC 13G/A · Feb 10, 2022
0.0%
4K shares
SC 13D/A · Jan 6, 2022
10.5%
3.7M shares