Security key
49372L100
Kezar Life Sciences, Inc. - Common Stock, par value $0.001 per share (KZR)
CUSIP: 49372L100
Q1 2019 13F Holders as of 31 Mar 2019
- Security type / class
- Equity / Common Stock, par value $0.001 per share
- Total 13F shares
- 9,915,066
- Total 13F value
- $175,891,040
- Share change
- +916,056
- SEC-reported price per share
- $17.74
- Number of holders
- 50
- Value change
- +$12,160,103
- Number of buys
- 40
- Number of sells
- 10
- Shares outstanding
- 7,393,623
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2019
Institutions
50
Top holders
10
KZR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Kezar Life Sciences, Inc. SEC filings
Kezar Life Sciences, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 49372L100
Recent filing periods:
Ownership snapshot
Top reported holders of KZR - Kezar Life Sciences, Inc. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
FMR LLC
Disclosed value leader
FMR LLC
Comparable rows
15/15
Latest evidence
31 Dec 2018
13F
Lead comparable stake: 39%
Showing 1-6 of 15 holder rows.
Quick read
FMR LLC leads the comparable SEC ownership view at 39%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens FMR LLC's linked filing trail.
Comparable ownership
Top 5
FMR LLC
39%
Cormorant Asset Management, LP
19%
EcoR1 Capital, LLC
14%
COWEN INC.
11%
BB BIOTECH AG
11%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| FMR LLC |
13F
Company
|
39%
|
$67,242,000
2,849,233 shares
|
— | 31 Dec 2018 |
| Cormorant Asset Management, LP |
13F
Company
|
19%
|
$33,581,000
1,422,911 shares
|
— | 31 Dec 2018 |
| EcoR1 Capital, LLC |
13F
Company
|
14%
|
$25,016,000
1,060,018 shares
|
— | 31 Dec 2018 |
| COWEN INC. |
13F
Company
|
11%
|
$19,663,000
833,197 shares
|
— | 31 Dec 2018 |
| BB BIOTECH AG |
13F
Company
|
11%
|
$19,315,000
818,432 shares
|
— | 31 Dec 2018 |
| Omega Fund Management, LLC |
13F
Company
|
9.1%
|
$15,945,000
675,623 shares
|
— | 31 Dec 2018 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
50
Shares
9,915,066
Rows available
50
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2019 vs Q3 2025 Across Filers
Q3 2025 holders
1
Q1 2019 holders
50
Holder diff
49
| Investor | Q3 2025 Shares | Q1 2019 Shares | Share Diff | Share Chg % | Q3 2025 value | Q1 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend