Key facts
- KZR - Kezar Life Sciences, Inc. has 17 insiders with reported activity on this page.
- Net insider value flow over the last year: -$3,531.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 17 Insiders of Kezar Life Sciences, Inc.
- Symbol
- KZR on Nasdaq
- Location
- South San Francisco, CA
Change
- Buy value: ; sell value: $3,531.
- Net share flow: -825.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$3,531.
Buys
$0
Shares: 0
Insiders: 0
Sells
$3,531
Shares: 825
Insiders: 2
Net
-$3,531
Shares: -825
Insiders: -2
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 825 | $0 | $3,531 | -$3,531 |
Kezar Life Sciences, Inc. executives and other stock owners filed with the SEC include:
Top shareholders of Kezar Life Sciences, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Equal Talent Investments Ltd |
13D/G
|
Equal Talent Investments Limited |
8.7%
|
616,502
|
$487,037 | $0 | 28 Feb 2025 | |
| Stonepine Capital Management, LLC |
13D/G
|
— |
2.1%
|
156,179
|
$968,310 | -$1,370,578 | 31 Dec 2025 | |
| BML Capital Management, LLC |
13F
|
Company |
9.7%
|
720,787
|
$5,348,240 | — | 31 Mar 2026 | |
| SUVRETTA CAPITAL MANAGEMENT, LLC |
13F
|
Company |
9.6%
|
716,759
|
$5,318,352 | — | 31 Mar 2026 | |
| TANG CAPITAL MANAGEMENT LLC |
13F
|
Company |
8.9%
|
664,314
|
$4,929,210 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
3.9%
|
290,529
|
$2,155,725 | — | 31 Mar 2026 | |
| Rangeley Capital, LLC |
13F
|
Company |
3.3%
|
243,073
|
$1,803,602 | — | 31 Mar 2026 | |
| Affinity Asset Advisors, LLC |
13F
|
Company |
3.1%
|
229,076
|
$1,699,744 | — | 31 Mar 2026 | |
| RENAISSANCE TECHNOLOGIES LLC |
13F
|
Company |
2.5%
|
188,426
|
$1,398,121 | — | 31 Mar 2026 | |
| ACADIAN ASSET MANAGEMENT LLC |
13F
|
Company |
2%
|
151,630
|
$1,123,000 | — | 31 Mar 2026 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
1.9%
|
142,050
|
$1,054,011 | — | 31 Mar 2026 | |
| Peapod Lane Capital LLC |
13F
|
Company |
1.7%
|
126,692
|
$924,520 | — | 31 Mar 2026 | |
| Ikarian Capital, LLC |
13F
|
Company |
1.4%
|
102,211
|
$758,405 | — | 31 Mar 2026 | |
| BlackRock, Inc. |
13F
|
Company |
1.3%
|
100,064
|
$742,475 | — | 31 Mar 2026 | |
| ADAR1 Capital Management, LLC |
13F
|
Company |
1.1%
|
81,933
|
$607,943 | — | 31 Mar 2026 | |
| Groupe la Francaise |
13F
|
Individual |
1.1%
|
80,400
|
$596,568 | — | 31 Mar 2026 | |
| Aldebaran Capital, LLC |
13F
|
Company |
1.1%
|
80,335
|
$596,086 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.82%
|
60,988
|
$452,643 | — | 31 Mar 2026 | |
| CITADEL ADVISORS LLC |
13F
|
Company |
0.8%
|
59,403
|
$440,770 | — | 31 Mar 2026 | |
| CREDIT INDUSTRIEL ET COMMERCIAL |
13F
|
Individual |
0.72%
|
53,600
|
$397,712 | — | 31 Mar 2026 | |
| TORNO CAPITAL, LLC |
13F
|
Company |
0.65%
|
48,479
|
$359,714 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.55%
|
41,201
|
$305,711 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.41%
|
30,334
|
$225,078 | — | 31 Mar 2026 | |
| RBF Capital, LLC |
13F
|
Company |
0.38%
|
28,144
|
$208,828 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
0.36%
|
27,093
|
$201,030 | — | 31 Mar 2026 | |
| Yakira Capital Management, Inc. |
13F
|
Company |
0.32%
|
24,000
|
$178,080 | — | 31 Mar 2026 | |
| Vazirani Asset Management LLC |
13F
|
Company |
0.3%
|
22,000
|
$163,240 | — | 31 Mar 2026 | |
| JANE STREET GROUP, LLC |
13F
|
Company |
0.29%
|
21,367
|
$158,544 | — | 31 Mar 2026 | |
| EQUITEC PROPRIETARY MARKETS, LLC |
13F
|
Company |
0.26%
|
19,500
|
$144,690 | — | 31 Mar 2026 | |
| XTX Topco Ltd |
13F
|
Company |
0.26%
|
19,495
|
$144,653 | — | 31 Mar 2026 | |
| BOOTHBAY FUND MANAGEMENT, LLC |
13F
|
Company |
0.22%
|
16,210
|
$120,278 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.19%
|
13,763
|
$102,121 | — | 31 Mar 2026 | |
| FMR LLC |
13F
|
Company |
0.14%
|
10,208
|
$75,740 | — | 31 Mar 2026 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.08%
|
5,796
|
$43,006 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
0.06%
|
4,285
|
$31,795 | — | 31 Mar 2026 | |
| Vanguard Global Advisers, LLC |
13F
|
Company |
0.02%
|
1,737
|
$12,889 | — | 31 Mar 2026 | |
| ROYAL BANK OF CANADA |
13F
|
Company |
0%
|
322
|
$2,000 | — | 31 Mar 2026 | |
| Caitong International Asset Management Co., Ltd |
13F
|
Company |
0%
|
308
|
$2,285 | — | 31 Mar 2026 | |
| Tower Research Capital LLC (TRC) |
13F
|
Company |
0%
|
262
|
$1,944 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0%
|
109
|
$812 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0%
|
89
|
$660 | — | 31 Mar 2026 | |
| Allworth Financial LP |
13F
|
Company |
0%
|
50
|
$371 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
0%
|
13
|
$96 | — | 31 Mar 2026 | |
| BARCLAYS PLC |
13F
|
Company |
0%
|
1
|
$7 | — | 31 Mar 2026 | |
| Morningside Venture Investments Ltd |
3/4/5
13D/G
|
10%+ Owner · Morningside Venture Investments Limited |
—
class O/S missing
|
1,947,993
|
$1,753,194 | — | 15 Aug 2023 | |
| Nicholas Michael Mordwinkin |
3/4/5
|
Chief Business Officer |
—
class O/S missing
|
275,000
|
— | — | 07 Jan 2024 | |
| Noreen Henig |
3/4/5
|
Chief Medical Officer |
—
class O/S missing
|
220,000
|
— | — | 24 Jul 2023 | |
| Jason Dinges |
3/4/5
|
Director |
—
class O/S missing
|
26,000
|
— | — | 28 Jun 2021 | |
| Jean-Pierre Sommadossi |
3/4/5
|
Director |
—
class O/S missing
|
26,000
|
— | — | 28 Jun 2021 | |
| Zung Phuong To |
3/4/5
|
Chief Development Officer |
—
class O/S missing
|
7,000
|
— | — | 01 Jul 2025 |
Recent Insider Transactions by Companies or Individuals for Kezar Life Sciences, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Courtney Wallace | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -16,300 | 0 | 11 May 2026 | Direct | ||
| Mark C. Schiller | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -2,739 | 0 | 11 May 2026 | Direct | ||
| Mark C. Schiller | KZR | Employee Stock Option (right to buy) | Disposed to Issuer | -100% | -114,745 | 0 | 11 May 2026 | Direct | ||
| Micki Klearman | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -16,300 | 0 | 11 May 2026 | Direct | ||
| Christopher J. Kirk | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -43,134 | 0 | 11 May 2026 | Direct | ||
| Christopher J. Kirk | KZR | Employee Stock Option (right to buy) | Disposed to Issuer | -100% | -328,997 | 0 | 11 May 2026 | Direct | ||
| Michael Kauffman | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -6,369 | 0 | 11 May 2026 | Direct | ||
| Michael Kauffman | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -12,378 | 0 | 11 May 2026 | Direct | ||
| Graham K. Cooper | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -15,731 | 0 | 11 May 2026 | Direct | ||
| Elizabeth Garner | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -13,768 | 0 | 11 May 2026 | Direct | ||
| Franklin M. Berger | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -89,069 | 0 | 11 May 2026 | Direct | ||
| Franklin M. Berger | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -11,100 | 0 | 11 May 2026 | Direct | ||
| John Franklin Fowler | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -3,846 | 0 | 11 May 2026 | By Montebello Holdings LLC | ||
| John Franklin Fowler | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -375 | 0 | 11 May 2026 | By Trust | ||
| John Franklin Fowler | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -39,390 | 0 | 11 May 2026 | Direct | ||
| John Franklin Fowler | KZR | Stock Option (right to buy) | Disposed to Issuer | -100% | -324,317 | 0 | 11 May 2026 | Direct | ||
| Marc Belsky | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -200 | 0 | 11 May 2026 | By Trust | ||
| Marc Belsky | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -1,538 | 0 | 11 May 2026 | Direct | ||
| Marc Belsky | KZR | Employee Stock Option (right to buy) | Disposed to Issuer | -100% | -154,287 | 0 | 11 May 2026 | Direct | ||
| Pichi Luo Chiang | KZR | Common Stock | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -2,711 | 0 | 11 May 2026 | Direct | ||
| Pichi Luo Chiang | KZR | Employee Stock Option (right to buy) | Disposed to Issuer | -100% | -72,147 | 0 | 11 May 2026 | Direct | ||
| Pichi Luo Chiang | KZR | Common Stock | Sale | -8.87% | $1,130 | $4.28 | -264 | 2,711 | 02 Jul 2025 | Direct |
| Mark C. Schiller | KZR | Common Stock | Sale | -17% | $2,401 | $4.28 | -561 | 2,739 | 02 Jul 2025 | Direct |
| Zung Phoung To | KZR | Employee Stock Option (right to buy) | Award | 7,000 | 7,000 | 01 Jul 2025 | Direct | |||
| Micki Klearman | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct | |||
| Michael Kauffman | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct | |||
| Courtney Wallace | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct | |||
| Elizabeth Garner | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct | |||
| Graham K. Cooper | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct | |||
| Franklin M. Berger | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct | |||
| John Franklin Fowler | KZR | Stock Option (right to buy) | Award | 5,000 | 5,000 | 18 Jun 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.