Kezar Life SciencesKZR
13F holders, Q4 2025 (December 31)43holders +4
10new positions
6sold out
1famous investor
$6.29avg. 13F price*
At the end of Q4 2025, 43 institutions reported holding Kezar Life Sciences Inc. (KZR) in their 13F filings, up 4 from Q3 2025. 10 opened new positions and 6 sold out. The largest holders were BML Capital Management, LLC ($4.5M), Montanova Capital, LLC ($4.5M) and Tang Capital Management LLC ($4.2M). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Kezar Life Sciences Inc.
- CUSIP
- 49372L209
- Latest filing quarter
- Q1 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 10 | $5.3M |
| Exits | 6 | $1.2M |
All 13F filers, Q3 2025 → Q4 2025: 956,670 shares bought and 677,968 shares sold, net +278,702 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 43 holders
| BML Capital Management, LLC | 4.01% | No change | 720,787 | $4.5M |
| Montanova Capital, LLC | 0.11% | No change | 716,759 | $4.5M |
| Tang Capital Management LLC | 0.21% | Reduce -7.7% | 664,314 | $4.2M |
| Vanguard Group Inc. | 0.00% | Add +27.3% | 341,404 | $2.1M |
| Nantahala Capital Management, LLC | 0.10% | New | 276,754 | $1.7M |
| Affinity Asset Advisors, LLC | 0.11% | New | 229,076 | $1.4M |
| Stonepine Capital Management, LLC | 0.78% | Reduce -59.2% | 156,179 | $982K |
| Renaissance Technologies | 0.00% | Add +13.3% | 131,285 | $826K |
| Peapod Lane Capital LLC | 0.68% | Add +0.7% | 126,699 | $797K |
| Acadian Asset Management LLC | 0.00% | Reduce -6.1% | 125,371 | $787K |
| ADAR1 Capital Management, LLC | 0.06% | Reduce -6.0% | 117,440 | $739K |
| Ikarian Capital, LLC | 0.08% | Reduce -4.4% | 102,211 | $643K |
| BlackRock, Inc. | 0.00% | Add +0.6% | 98,684 | $621K |
| Rangeley Capital, LLC | 0.47% | New | 85,926 | $540K |
| Aldebaran Capital, LLC | 0.45% | New | 80,630 | $507K |
| Geode Capital Management, LLC | 0.00% | Add +4.1% | 68,167 | $429K |
| Prelude Capital Management, LLC | 0.02% | New | 52,929 | $333K |
| Bridgeway Capital Management, LLC | 0.01% | Add +25.9% | 51,638 | $325K |
| FNY Investment Advisers, LLC | 0.09% | New | 50,000 | $314K |
| Vazirani Asset Management LLC | 1.85% | New | 48,428 | $305K |
| Shay Capital LLC | 0.03% | Reduce -50.2% | 33,699 | $212K |
| RBF Capital, LLC | 0.01% | Reduce -0.4% | 28,144 | $177K |
| State Street Corp. | 0.00% | Add +28.4% | 27,093 | $170K |
| Dimensional Fund Advisors LP | 0.00% | Add +14.3% | 26,543 | $167K |
| Nano Cap New Millennium Growth Fund L P | 0.13% | — | 25,000 | $157K |
| Torno Capital, LLC | 0.05% | New | 20,000 | $126K |
| Boothbay Fund Management, LLC | 0.00% | Reduce -22.4% | 16,210 | $102K |
| Northern Trust Corp. | 0.00% | Reduce -1.3% | 13,763 | $87K |
| Two Sigma Investments, LP | 0.00% | Reduce -52.2% | 11,312 | $71K |
| Wells Fargo & Company | 0.00% | Reduce -0.2% | 5,836 | $37K |
| Morgan Stanley | 0.00% | Reduce -27.3% | 5,685 | $36K |
| Global Retirement Partners, LLC | 0.00% | No change | 1,000 | $6K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -52.5% | 564 | $4K |
| FMR LLC | 0.00% | Reduce -97.6% | 208 | $1K |
| Royal Bank of Canada | 0.00% | New | 112 | $1K |
| Bank of America Corp. | 0.00% | Add +0.8% | 122 | $768 |
| JPMorgan Chase & Co. | 0.00% | Reduce -47.9% | 109 | $686 |
| CIBC Private Wealth Group LLC | 0.00% | No change | 100 | $629 |
| Osaic Holdings, Inc. | 0.00% | Add +4.4% | 94 | $591 |
| BNP Paribas Financial Markets | 0.00% | Reduce -7.3% | 89 | $560 |
| Allworth Financial LP | 0.00% | New | 50 | $315 |
| UBS Group AG | 0.00% | Reduce -88.8% | 40 | $252 |
| Barclays PLC | 0.00% | No change | 1 | $6 |
"% of holder's portfolio" is KZR's weight in each manager's 13F, not the share of Kezar Life Sciences Inc. the manager owns.