CYTK Institutional Ownership
Who owns Cytokinetics Inc and what the big funds did with it last quarter, from every SEC 13F filing. 487 funds reported holding CYTK at Jun 30, 2026, together owning 115.5% of the company.
- ▲328 buying vs 152 selling
- ▲Held by funds +8.2 pts
- ▲Funds holding +40
- ▲Superinvestors: 2 added, 1 cut
- ▲Put/call 0.35 to 0.08
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 487 | 447 | +8.9% |
| In funds' top 10 | 15 | 16 | −6.3% |
| 13F shares | 161M | 149M | +7.6% |
| Held by funds | 115.5% | 107.4% | +8.2 pts |
| New positions | 91 | 74 | +23.0% |
| Increased | 237 | 173 | +37.0% |
| Reduced | 102 | 134 | −23.9% |
| Sold out | 50 | 64 | −21.9% |
| Calls (shares) | 2.7M | 5.7M | −52.5% |
| Puts (shares) | 210K | 2M | −89.6% |
| Put/call ratio | 0.08 | 0.35 | −78.0% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in CYTK
All superinvestors →
Who owns CYTK
share of fund held shares- Index and passive funds30.6%
- Active managers and hedge funds56.0%
- Banks and brokers11.9%
- Pensions, insurers and other1.6%
The top 10 holders own 51.9% of all CYTK shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
109 funds changed their position- Capricorn Fund Managers LtdAdded+158K sh
- Principal Financial Group IncTrimmed−86K sh
- Polaris Capital Management, LLCAdded+79K sh
- Calamos Advisors LLCSold out−51K sh
- Y-Intercept (Hong Kong) LtdSold out−44K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 14.45% | 20.1M | $1.7B | +3.5M |
| 2 | T. Rowe Price Investment Management, Inc. | 13.46% | 18.7M | $1.6B | +1.2M |
| 3 | Wellington Management Group LLP | 4.99% | 6.9M | $591M | −1.1M |
| 4 | Vanguard Portfolio Management LLC | 4.83% | 6.7M | $572M | +868K |
| 5 | State Street Corp | 4.67% | 6.5M | $553M | +749K |
| 6 | Vanguard Capital Management LLC | 4.40% | 6.1M | $521M | +629K |
| 7 | Fmr LLC | 3.62% | 5M | $429M | −5.7M |
| 8 | Avoro Capital Advisors LLC | 3.60% | 5M | $426M | +1.7M |
| 9 | Bank of America Corp /de/ | 3.33% | 4.6M | $395M | +1.5M |
| 10 | Geode Capital Management, LLC | 2.67% | 3.7M | $316M | +497K |
- BlackRock, Inc.+3.5M sh+$302M
- Avoro Capital Advisors LLC+1.7M sh+$142M
- Bank of America Corp /de/+1.5M sh+$129M
- T. Rowe Price Investment Management, Inc.+1.2M sh+$102M
- Holocene Advisors, LP+1.1M sh+$97.5M
- Norges Bank+1M sh+$86.5M
- Point72 Asset Management, L.P.+962K sh+$81.9M
- Capital Research Global Investors+916K sh+$78M
- Fmr LLC−5.7M sh−$485M
- Paradigm Biocapital Advisors LP−1.5M sh−$97.6M
- Wellington Management Group LLP−1.1M sh−$91.8M
- UBS Group AG−906K sh−$77.2M
- Logos Global Management LP−875K sh−$57.7M
- Deep Track Capital, LP−674K sh−$57.4M
- Citadel Advisors LLC−459K sh−$39.1M
- Goldman Sachs Group Inc−444K sh−$37.8M
CYTK institutional ownership FAQ
Who owns the most CYTK stock?
In Q2 2026 13F filings the largest holder of CYTK was BlackRock, Inc., followed by T. Rowe Price Investment Management, Inc. and Wellington Management Group LLP. Index fund managers are usually the biggest holders of large companies.
What percentage of CYTK is owned by institutions?
Funds that file 13F reports held 115.5% of CYTK's shares at Jun 30, 2026, compared with 107.4% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying CYTK?
In Q2 2026, 328 funds bought CYTK (91 of them new positions) and 152 sold (50 sold out completely). Among well known investors, 2 added and 1 cut. Our fund sentiment for CYTK is strongly bullish.
What is CYTK's institutional put/call ratio?
Funds reported $17.9M of CYTK puts against $232M of calls, a put/call ratio of 0.08 (0.35 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this CYTK ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.