MacroGenics
Develops engineered antibody therapies for cancer through internal programs and collaborations.
$4.10
After-hours close−0.04 (−0.97%)
At close$4.14(+1.47%)
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Breakdown13F · Form 4
Institutions 67.92%43.17M sharesInsiders 3.27%2.08M sharesOther 28.81%18.31M shares
Shares outstanding 63.56M · Float 55.88M · 87.9% free float
Institutions13F, as of Mar 31, 2026
113 holders · 43.17M shares · 32 new positions · 62 increased · 26 reduced · 12 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Armistice Capital, LLC | 6.01M | 9.46% | −312.0K | May 15, 2026 |
| Renaissance Technologies LLC | 2.96M | 4.66% | +54.9K | May 14, 2026 |
| Millennium Management LLC | 2.79M | 4.40% | +819.9K | May 15, 2026 |
| Vanguard Capital Management LLC | 2.65M | 4.18% | +2.65Mnew | May 15, 2026 |
| Acadian Asset Management LLC | 2.54M | 4.00% | +25.6K | May 13, 2026 |
| Two Sigma Investments, LP | 2.53M | 3.98% | +1.53M | May 15, 2026 |
| Bank of America Corp /DE/ | 2.40M | 3.78% | +564.1K | May 18, 2026 |
| Marshall Wace, LLP | 2.03M | 3.19% | +741.0K | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Armistice Capital, LLC | 9.46% | 6.01M | 13G | May 15, 2026 ↗ |
| BlackRock, Inc. | 7.10% | 4.50M | 13G | Jul 29, 2026 ↗ |
| Millennium Management LLC | 5.40% | 3.44M | 13G | Jun 5, 2026 ↗ |
| Bank of America Corp /DE/ | 5.10% | 3.26M | 13G | May 14, 2026 ↗ |
| Patrick J. Heronincl. Frazier Life Sciences X, L.P., Fhmls Xi, L.P. +14 more | 5.10% | 3.18M | 13G | Nov 20, 2024 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Scott Koenig | director | 1.29M | 2.04% | Feb 17, 2026 |
| James Karrels | officer: SVP and CFO | 206.0K | 0.32% | Feb 17, 2026 |
| Ezio Bonvini | officer: Sr VP, Research & CSO | 185.8K | 0.29% | Aug 18, 2026 |
| William K. Heiden | director | 114.8K | 0.18% | May 20, 2026 |
| Eric Blasius Risser | director, officer: President and CEO | 77.2K | 0.12% | Feb 17, 2026 |
| Edward Hurwitz | director | 47.8K | 0.08% | May 20, 2026 |
| Thomas Spitznagel | officer: Sr VP, Technical Ops | 38.5K | 0.06% | Feb 17, 2026 |
| Meenu Chhabra | director | 14.8K | 0.02% | May 20, 2026 |
| Karen Jean Ferrante | director | 14.8K | 0.02% | May 20, 2026 |
| Scott Thomas Jackson | director | 14.8K | 0.02% | May 20, 2026 |
4 ten-percent owners hold 14.24M shares by Form 4, outside the officers-and-directors figure above · 8 people have not refiled in the last 18 months (1.89M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 19, 2026 | Jeffrey Stuart Petersofficer: Senior VP, GC, and Secretary | Sale | 31,105 | $4.15 | 0 |
CongressHouse and Senate disclosures
Not reported.