As of April 17, 2026, Macrogenics's top three insider holders are Target N V Biotech (TenPercentOwner, 9.93Mn shares), Scott Koenig (President And Ceo, 867.24K shares), Scott Koenig (President And Ceo, 427.48K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Target N V Biotech | - | 9,929,963 | 0 | 04 Oct, 2023 |
| Scott Koenig | President And Ceo | 867,240 | 0 | 17 Feb, 2026 |
| Scott Koenig | President And Ceo | 0 | 427,480 | 09 Oct, 2024 |
| James Karrels | Svp And Cfo | 206,037 | 0 | 17 Feb, 2026 |
| Ezio Bonvini | Sr Vp, Research Cso | 145,799 | 0 | 17 Feb, 2026 |
| William K Heiden | - | 111,000 | 0 | 21 Aug, 2025 |
| Eric Blasius Risser | President And Ceo | 77,169 | 0 | 17 Feb, 2026 |
| Edward Hurwitz | - | 44,074 | 0 | 22 May, 2025 |
| Thomas Spitznagel | Sr Vp, Technical Ops | 38,543 | 0 | 17 Feb, 2026 |
| Jeffrey Stuart Peters | Senior Vp, Gc, And Secretary | 31,105 | 0 | 17 Feb, 2026 |
| Stephen L. Eck | Chief Medical Officer | 29,377 | 0 | 19 Feb, 2025 |
| Beth Ann Smith | Vp, Controller Treasurer | 12,781 | 0 | 17 Feb, 2026 |
| Meenu Chhabra | - | 11,000 | 0 | 22 May, 2025 |
| Margaret Liu | - | 11,000 | 0 | 22 May, 2025 |
| Jay Philip Siegel | - | 11,000 | 0 | 22 May, 2025 |
| Karen Jean Ferrante | - | 11,000 | 0 | 22 May, 2025 |
| Federica F. O'Brien | - | 11,000 | 0 | 22 May, 2025 |
| Scott Thomas Jackson | - | 11,000 | 0 | 22 May, 2025 |
| Lynn Cilinski | Vp, Controller And Treasurer | 6,213 | 0 | 20 Feb, 2024 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 15 Feb, 2026 | Ezio Bonvini | Common Stock | A | 16,665 | - | 152,232 | D | M |
| 15 Feb, 2026 | Beth Ann Smith | Common Stock | A | 1,095 | - | 13,204 | D | M |
| 15 Feb, 2026 | Jeffrey Stuart Peters | Common Stock | A | 13,332 | - | 36,252 | D | M |
| 15 Feb, 2026 | Eric Blasius Risser | Common Stock | A | 16,665 | - | 83,602 | D | M |
| 15 Feb, 2026 | Thomas Spitznagel | Common Stock | A | 13,332 | - | 44,063 | D | M |
| 15 Feb, 2026 | Scott Koenig | Common Stock | A | 21,165 | $0.00 | 867,240 | D | M |
| 15 Feb, 2026 | James Karrels | Common Stock | A | 14,999 | - | 211,827 | D | M |
| 15 Feb, 2026 | Beth Ann Smith | Common Stock | D | 423 | $1.71 | 12,781 | D | F |
| 15 Feb, 2026 | Thomas Spitznagel | Common Stock | D | 5,520 | $1.71 | 38,543 | D | F |
| 15 Feb, 2026 | James Karrels | Common Stock | D | 5,790 | $1.71 | 206,037 | D | F |
| 15 Feb, 2026 | Scott Koenig | Restricted Stock Unit | D | 21,165 | $0.00 | 0 | D | M |
| 15 Feb, 2026 | Eric Blasius Risser | Common Stock | D | 6,433 | $1.71 | 77,169 | D | F |
| 15 Feb, 2026 | Jeffrey Stuart Peters | Common Stock | D | 5,147 | $1.71 | 31,105 | D | F |
| 15 Feb, 2026 | Ezio Bonvini | Common Stock | D | 6,433 | $1.71 | 145,799 | D | F |
| 15 Feb, 2026 | Jeffrey Stuart Peters | Restricted Stock Unit | D | 13,332 | $0.00 | 0 | D | M |
| 15 Feb, 2026 | Eric Blasius Risser | Restricted Stock Unit | D | 16,665 | $0.00 | 0 | D | M |
| 15 Feb, 2026 | Beth Ann Smith | Restricted Stock Unit | D | 1,095 | $0.00 | 0 | D | M |
| 15 Feb, 2026 | James Karrels | Restricted Stock Unit | D | 14,999 | $0.00 | 0 | D | M |
| 15 Feb, 2026 | Ezio Bonvini | Restricted Stock Unit | D | 16,665 | $0.00 | 0 | D | M |
| 15 Feb, 2026 | Thomas Spitznagel | Restricted Stock Unit | D | 13,332 | $0.00 | 0 | D | M |