KEZAR LIFE SCIENCES INC KZR
COM NEW · Common Stock · CUSIP 49372L209
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q2 2024 | 1 |
| Q3 2024 | 3 |
| Q4 2024 | 44 |
| Q1 2025 | 42 |
| Q2 2025 | 41 |
| Q3 2025 | 39 |
| Q4 2025 | 43 |
| Q1 2026 | 43 |
| Q2 2026 | 0 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 2 | 0 |
| Q4 2024 | 42 | 3 |
| Q1 2025 | 12 | 19 |
| Q2 2025 | 13 | 12 |
| Q3 2025 | 13 | 12 |
| Q4 2025 | 20 | 22 |
| Q1 2026 | 18 | 20 |
| Q2 2026 | 0 | 42 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $61.6k | $0 | 0.00 |
| Q4 2025 | $888.8k | $0 | 0.00 |
| Q1 2026 | $1.3m | $783.6k | 0.62 |
| Q2 2026 | $0 | $0 | — |
Biggest buyers
| None |
Biggest sellers
| BML Capital Management, LLC | Sold out | -720.8k |
| MONTANOVA CAPITAL, LLC | Sold out | -716.8k |
| TANG CAPITAL MANAGEMENT LLC | Sold out | -664.3k |
| VANGUARD CAPITAL MANAGEMENT LLC | Sold out | -290.5k |
| Rangeley Capital, LLC | Sold out | -243.1k |
| Affinity Asset Advisors, LLC | Sold out | -229.1k |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -188.4k |
| ACADIAN ASSET MANAGEMENT LLC | Sold out | -151.6k |
| MILLENNIUM MANAGEMENT LLC | Sold out | -142.1k |
| Peapod Lane Capital LLC | Sold out | -126.7k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
No one currently above 5% in the filings since 19 Dec 2024.
Fell to 5% or below in the last year: Baselake Partners, LP (0.0%, 2026-05-28), TANG CAPITAL MANAGEMENT LLC (0.0%, 2026-05-13), Stonepine Capital Management, LLC (2.1%, 2026-02-13), Avidity Partners Management LP (0.0%, 2025-11-14)
Holders, Q2 2026
| Manager | Shares | Change |
|---|