Zenas BioPharma, Inc.
Total Trades
7
Buys
7
Sells
0
Largest Trade
$1M+
Insiders
3
Institutional Funds
91
Inst. Value
$1M+
Activist Filings
17
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Lu Hongbo | Director | BUY | $500K+ | 26K | $22.50 | Feb 13, 2026 |
| Allen Patricia L | Director | BUY | $100K–$500K | 20K | $25.16 | Feb 13, 2026 |
| MOULDER LEON O JR | CEO | BUY | $1M+ | 57K | $17.96 | Feb 3, 2026 |
| MOULDER LEON O JR | CEO | BUY | $1M+ | 100K | $16.39 | Jan 10, 2026 |
| MOULDER LEON O JR | CEO | BUY | $500K+ | 70K | $10.26 | Dec 5, 2024 |
| MOULDER LEON O JR | CEO | BUY | $100K–$500K | 10K | $14.89 | Nov 20, 2024 |
| MOULDER LEON O JR | CEO | BUY | $100K–$500K | 20K | $18.04 | Sep 20, 2024 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 91 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| SR ONE CAPITAL MANAGEMENT, LP | 5.0M | $1M+ | SH |
| Enavate Sciences GP, LLC | 3.9M | $1M+ | SH |
| NEA Management Company, LLC | 3.5M | $1M+ | SH |
| FEDERATED HERMES, INC. | 2.7M | $1M+ | SH |
| Fairmount Funds Management LLC | 2.2M | $1M+ | SH |
| NVP Associates, LLC | 1.8M | $1M+ | SH |
| Novo Holdings A/S | 1.4M | $1M+ | SH |
| Vivo Capital, LLC | 853K | $1M+ | SH |
| ArrowMark Colorado Holdings LLC | 751K | $1M+ | SH |
| Pivotal bioVenture Partners Investment Advisor LLC | 592K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 506K | $1M+ | SH |
| STATE STREET CORP | 438K | $1M+ | SH |
| NEXTBio Capital Management LP | 322K | $1M+ | SH |
| Point72 Asset Management, L.P. | 368K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 213K | $1M+ | SH |
| BALYASNY ASSET MANAGEMENT L.P. | 193K | $1M+ | SH |
| Skandinaviska Enskilda Banken AB (publ) | 164K | $1M+ | SH |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 133K | $1M+ | SH |
| UBS Group AG | 69K | $1M+ | SH |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 51K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 5, 2026
14.3%
7.7M shares
SC 13D · Jan 14, 2026
5.2%
2.8M shares
SC 13G/A · Nov 14, 2025
4.7%
2.0M shares
SC 13G · Oct 15, 2025
9.4%
5.0M shares
SC 13D/A · Oct 14, 2025
7.3%
3.9M shares
SR One Capital Management, LLC
SC 13D/A · Oct 14, 2025
9.4%
5.0M shares
Longitude Capital Partners IV, LLC
SC 13D/A · Oct 14, 2025
3.4%
1.8M shares
SC 13D/A · Oct 9, 2025
4.8%
2.6M shares
SC 13G/A · Sep 8, 2025
11.0%
4.6M shares
SC 13G/A · Aug 6, 2025
7.9%
3.3M shares
SC 13D · Jun 6, 2025
5.0%
2.1M shares
SC 13G/A · May 12, 2025
6.8%
2.9M shares
SC 13G · Apr 2, 2025
5.3%
2.2M shares
SC 13G · Nov 12, 2024
5.0%
2.0M shares
SC 13G · Oct 21, 2024
7.4%
3.1M shares
NEA 18 Venture Growth Equity, L.P.
SC 13G · Sep 25, 2024
6.6%
2.6M shares
SR One Capital Management, LLC 2
SC 13D · Sep 24, 2024
12.3%
4.9M shares