ImmunoGen, Inc.
Total Trades
34
Buys
0
Sells
17
Largest Trade
N/A
Insiders
4
Institutional Funds
1
Inst. Value
<$1K
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Coen Stacy Ann | SVP & CHIEF BUSINE… | SELL | $100K–$500K | 5K | $29.30 | Feb 7, 2024 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | EXERCISE | N/A | 14K | — | Feb 7, 2024 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | N/A | 30K | — | Feb 7, 2024 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $100K–$500K | 12K | $29.30 | Feb 7, 2024 |
| Enyedy Mark J | CHIEF EXECUTIVE OF… | SELL | $500K+ | 20K | $29.28 | Feb 7, 2024 |
| Enyedy Mark J | CHIEF EXECUTIVE OF… | EXERCISE | N/A | 51K | — | Feb 7, 2024 |
| Lentini Renee | VP & PRIN ACCTG OF… | SELL | $50K–$100K | 3K | $29.30 | Feb 7, 2024 |
| Lentini Renee | VP & PRIN ACCTG OF… | EXERCISE | N/A | 8K | — | Feb 7, 2024 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $1M+ | 188K | $29.64 | Jan 18, 2024 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | $500K+ | 188K | $5.13 | Jan 18, 2024 |
| Lentini Renee | VP & PRIN ACCTG OF… | EXERCISE | N/A | 15K | — | Dec 28, 2023 |
| Lentini Renee | VP & PRIN ACCTG OF… | SELL | $100K–$500K | 7K | $29.74 | Dec 28, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | $1M+ | 171K | $10.68 | Dec 2, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $1M+ | 171K | $28.46 | Dec 2, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | $500K+ | 167K | $4.55 | Nov 18, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $1M+ | 167K | $15.85 | Nov 18, 2023 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | SELL | $1M+ | 109K | $16.04 | Nov 18, 2023 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | EXERCISE | $500K+ | 109K | $7.02 | Nov 18, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $100K–$500K | 20K | $16.66 | Nov 8, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | $100K–$500K | 20K | $10.65 | Nov 8, 2023 |
| Lentini Renee | VP & PRIN ACCTG OF… | EXERCISE | $500K+ | 121K | $7.83 | Nov 8, 2023 |
| Lentini Renee | VP & PRIN ACCTG OF… | SELL | $1M+ | 220K | $15.29 | Nov 8, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | $500K+ | 192K | $4.55 | Oct 18, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $1M+ | 192K | $14.40 | Oct 18, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | EXERCISE | $100K–$500K | 109K | $3.65 | Sep 19, 2023 |
| Wingrove Theresa | SVP OF REGULATORY … | SELL | $1M+ | 192K | $15.44 | Sep 19, 2023 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | EXERCISE | $100K–$500K | 100K | $4.92 | Aug 11, 2023 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | SELL | $1M+ | 100K | $14.20 | Aug 11, 2023 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | SELL | $1M+ | 85K | $17.10 | Aug 4, 2023 |
| Coen Stacy Ann | SVP & CHIEF BUSINE… | EXERCISE | $100K–$500K | 85K | $4.92 | Aug 4, 2023 |
| Enyedy Mark J | CHIEF EXECUTIVE OF… | SELL | $1M+ | 3.0M | $17.01 | Aug 4, 2023 |
| Enyedy Mark J | CHIEF EXECUTIVE OF… | EXERCISE | $1M+ | 3.1M | $4.83 | Aug 4, 2023 |
| Lentini Renee | PRIN. FIN & ACCTG… | EXERCISE | $500K+ | 199K | $4.03 | Aug 4, 2023 |
| Lentini Renee | PRIN. FIN & ACCTG… | SELL | $1M+ | 148K | $17.55 | Aug 4, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 1 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| HUNTINGTON NATIONAL BANK | 1 | <$1K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 14, 2024
10.0%
26.9M shares
SC 13G/A · Feb 14, 2024
5.9%
16.4M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.1%
25.5M shares
SC 13G/A · Jan 25, 2024
8.2%
21.8M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Jan 22, 2024
3.0%
0 shares
SC 13G/A · Feb 14, 2023
10.0%
22.1M shares
SC 13G/A · Feb 14, 2023
8.6%
19.9M shares
SC 13G/A · Feb 10, 2023
2.9%
6.4M shares
SC 13G/A · Feb 3, 2023
8.2%
18.0M shares
SC 13G · Dec 27, 2022
5.0%
11.1M shares
SC 13G · May 19, 2022
6.7%
14.8M shares
SC 13G · Apr 4, 2022
5.3%
11.6M shares
SC 13G/A · Mar 11, 2022
6.9%
14.9M shares
SC 13G/A · Feb 14, 2022
8.5%
19.6M shares
SC 13G/A · Feb 14, 2022
10.0%
22.2M shares
Wellington Management Group LLP
SC 13G/A · Jan 10, 2022
6.3%
13.9M shares