Kezar Life Sciences, Inc. (KZR) — Institutional Holders, Q1 2026
42 institutional investment managers reported a KZR position on SEC Form 13F-HR for the quarter ended March 31, 2026, with a combined reported value of $32.8M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
KZR in Q1 2026: what funds did
Funds that filed a 13F for both Q4 2025 and Q1 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- Rangeley CapitalAdded · +157,147 sh+$1.2M
- MILLENNIUM MANAGEMENTNew · +142,050 sh+$1.1M
- Groupe la FrancaiseNew · +80,400 sh+$596.6K
- CITADEL ADVISORSNew · +59,403 sh+$440.8K
- RENAISSANCE TECHNOLOGIESAdded · +57,141 sh+$424.0K
Biggest sellers
- Nantahala Capital ManagementSold out · -276,754 sh-$2.1M
- Stonepine Capital ManagementSold out · -156,179 sh-$1.2M
- ADAR1 Capital ManagementTrimmed · -152,947 sh-$1.1M
- PRELUDE CAPITAL MANAGEMENTSold out · -52,929 sh-$392.7K
- BRIDGEWAY CAPITAL MANAGEMENTSold out · -51,638 sh-$383.2K
KZR 13F holders ranked 1–42 of 42
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q4 2025 |
|---|---|---|---|---|---|
| 1 | BML Capital Management#1 · 720,787 sh | 720,787 | $5.3M | — | 0.0% |
| 2 | SUVRETTA CAPITAL MANAGEMENT#2 · 716,759 sh | 716,759 | $5.3M | — | 0.0% |
| 3 | TANG CAPITAL MANAGEMENT#3 · 664,314 sh | 664,314 | $4.9M | — | 0.0% |
| 4 | VANGUARD CAPITAL MANAGEMENT#4 · 290,529 sh | 290,529 | $2.2M | — | — |
| 5 | Rangeley Capital#5 · 243,073 sh | 243,073 | $1.8M | — | +182.9% |
| 6 | Affinity Asset Advisors#6 · 229,076 sh | 229,076 | $1.7M | — | 0.0% |
| 7 | RENAISSANCE TECHNOLOGIES#7 · 188,426 sh | 188,426 | $1.4M | — | +43.5% |
| 8 | ACADIAN ASSET MANAGEMENT#8 · 151,630 sh | 151,630 | $1.1M | — | +20.9% |
| 9 | MILLENNIUM MANAGEMENT#9 · 142,050 sh | 142,050 | $1.1M | — | New |
| 10 | Peapod Lane Capital#10 · 126,692 sh | 126,692 | $924.5K | — | 0.0% |
| 11 | Ikarian Capital#11 · 102,211 sh | 102,211 | $758.4K | — | 0.0% |
| 12 | BlackRock#12 · 100,064 sh | 100,064 | $742.5K | — | +1.4% |
| 13 | ADAR1 Capital Management#13 · 81,933 sh | 81,933 | $607.9K | — | -65.1% |
| 14 | Groupe la Francaise#14 · 80,400 sh | 80,400 | $596.6K | — | New |
| 15 | Aldebaran Capital#15 · 80,335 sh | 80,335 | $596.1K | — | -0.4% |
| 16 | GEODE CAPITAL MANAGEMENT#16 · 60,988 sh | 60,988 | $452.6K | — | -10.5% |
| 17 | CITADEL ADVISORS#17 · 59,403 sh | 59,403 | $440.8K | — | New |
| 18 | CREDIT INDUSTRIEL ET COMMERCIAL#18 · 53,600 sh | 53,600 | $397.7K | — | New |
| 19 | TORNO CAPITAL#19 · 48,479 sh | 48,479 | $359.7K | — | +142.4% |
| 20 | VANGUARD FIDUCIARY#20 · 41,201 sh | 41,201 | $305.7K | — | — |
| 21 | DIMENSIONAL FUND ADVISORS#21 · 30,334 sh | 30,334 | $225.1K | — | +14.3% |
| 22 | RBF Capital#22 · 28,144 sh | 28,144 | $208.8K | — | -50.0% |
| 23 | STATE STREET#23 · 27,093 sh | 27,093 | $201.0K | — | 0.0% |
| 24 | Yakira Capital Management#24 · 24,000 sh | 24,000 | $178.1K | — | New |
| 25 | Vazirani Asset Management#25 · 22,000 sh | 22,000 | $163.2K | — | -54.6% |
| 26 | JANE STREET GROUP#26 · 21,367 sh | 21,367 | $158.5K | — | New |
| 27 | EQUITEC PROPRIETARY MARKETS#27 · 19,500 sh | 19,500 | $144.7K | — | New |
| 28 | XTX Topco Ltd#28 · 19,495 sh | 19,495 | $144.7K | — | New |
| 29 | BOOTHBAY FUND MANAGEMENT#29 · 16,210 sh | 16,210 | $120.3K | — | 0.0% |
| 30 | NORTHERN#30 · 13,763 sh | 13,763 | $102.1K | — | 0.0% |
| 31 | FMR#31 · 10,208 sh | 10,208 | $75.7K | — | +4807.7% |
| 32 | WELLS FARGO & COMPANY#32 · 5,796 sh | 5,796 | $43.0K | — | -0.7% |
| 33 | MORGAN STANLEY#33 · 4,285 sh | 4,285 | $31.8K | — | -24.6% |
| 34 | Vanguard Global Advisers#34 · 1,737 sh | 1,737 | $12.9K | — | — |
| 35 | Caitong International Asset Management , Ltd#35 · 308 sh | 308 | $2.3K | — | New |
| 36 | ROYAL BANK OF CANADA#36 · 322 sh | 322 | $2.0K | — | +187.5% |
| 37 | Tower Research Capital (TRC)#37 · 262 sh | 262 | $1.9K | — | -53.5% |
| 38 | JPMORGAN CHASE#38 · 109 sh | 109 | $812.00 | — | 0.0% |
| 39 | BNP PARIBAS FINANCIAL MARKETS#39 · 89 sh | 89 | $660.00 | — | 0.0% |
| 40 | Allworth Financial#40 · 50 sh | 50 | $371.00 | — | 0.0% |
| 41 | UBS Group AG#41 · 13 sh | 13 | $96.00 | — | -67.5% |
| 42 | BARCLAYS PLC#42 · 1 sh | 1 | $7.00 | — | 0.0% |
Funds that sold out of KZR in Q1 2026 (10)
Held KZR at the end of Q4 2025 and filed a Q1 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q4 2025 |
|---|---|---|
| Nantahala Capital Management276,754 sh | 276,754 | $1.7M |
| Stonepine Capital Management156,179 sh | 156,179 | $982.4K |
| PRELUDE CAPITAL MANAGEMENT52,929 sh | 52,929 | $332.9K |
| BRIDGEWAY CAPITAL MANAGEMENT51,638 sh | 51,638 | $324.8K |
| FNY Investment Advisers50,000 sh | 50,000 | $314.0K |
| Shay Capital33,699 sh | 33,699 | $212.0K |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P25,000 sh | 25,000 | $157.3K |
| TWO SIGMA INVESTMENTS11,312 sh | 11,312 | $71.2K |
| OSAIC94 sh | 94 | $591.00 |
| BANK OF AMERICA16 sh | 16 | $101.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q1 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q4 2025 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.