Security key
23282W605
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 74,824,822
- Total 13F value
- $1,739,406,944
- Share change
- +1,929,303
- Put/Call ratio
- 53%
- SEC-reported price per share
- $23.26
- Number of holders
- 185
- Value change
- +$58,909,832
- Number of buys
- 89
- Number of sells
- 76
- Shares outstanding
- 134,578,967
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2021
Institutions
185
Top holders
10
CYTK full security history
Ownership snapshot
Full 13F holder table
CYTOKINETICS INC SEC filings
CYTOKINETICS INC company facts
Broader feeds
Ownership snapshot
Top reported holders of CYTK - CYTOKINETICS INC - COMMON STOCK (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
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2020
13F
Lead comparable stake: 8.6%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 8.6%.
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 BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
8.6%
BVF INC/IL
3.6%
VANGUARD GROUP INC
3.6%
STATE STREET CORP
3.4%
Polar Capital Holdings Plc
2.4%
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 |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
8.6%
|
$241,277,000
11,611,079 shares
|
— | 31 Dec 2020 |
| BVF INC/IL |
13F
Company
|
3.6%
|
$101,366,000
4,878,035 shares
|
— | 31 Dec 2020 |
| VANGUARD GROUP INC |
13F
Company
|
3.6%
|
$100,202,000
4,821,989 shares
|
— | 31 Dec 2020 |
| STATE STREET CORP |
13F
Company
|
3.4%
|
$96,438,000
4,640,923 shares
|
— | 31 Dec 2020 |
| Polar Capital Holdings Plc |
13F
Company
|
2.4%
|
$67,990,000
3,271,884 shares
|
— | 31 Dec 2020 |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
Company
|
2.4%
|
$67,048,000
3,226,567 shares
|
— | 31 Dec 2020 |
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 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
185
Shares
74,824,822
Rows available
185
| 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 2021 vs Q1 2021 Across Filers
Q1 2021 holders
185
Q1 2021 holders
185
Holder diff
0
| Investor | Q1 2021 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q1 2021 value | Value change | Value Chg % |
|---|