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CYTK in the 13F filings

Cytokinetics Inc · CUSIP 23282W605

Sector · Pharmaceuticals and biotechnologyTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Pharmaceutical preparations
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 12 Feb 2025
Managers listing it
11
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q3 2024 and Q4 2024; 11 listed it in both
Shares listed
24,183,373
combined, among listed positions
Reported value
$1.1bn
combined, at the quarter end

Among the 94 comparable managers: 5 buyers (opened or added shares) and 6 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing CYTK in Q4 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

11 of 11 holders

ActionFiling
Fidelity (FMR LLC)10,794,686$508munder 0.1%Trimmed-1,299,5685 Nov 2026 (the filing on sec.gov)
Wellington Management Group LLP7,888,697$371m0.07%Added+113,72712 Feb 2025 (the filing on sec.gov)
Marshall Wace LLP2,153,313$101m0.12%Added+279,61213 Feb 2025 (the filing on sec.gov)
AllianceBernstein LP1,595,324$75munder 0.1%Trimmed-65,69012 Feb 2025 (the filing on sec.gov)
Janus Henderson Group Ltd1,024,417$48munder 0.1%Trimmed-119,41314 Feb 2025 (the filing on sec.gov)
Two Sigma Advisers LP226,400$11munder 0.1%Added+11,70014 Feb 2025 (the filing on sec.gov)
Davidson Kempner Capital Management LP179,061$8.4m0.14%Trimmed-23,98114 Feb 2025 (the filing on sec.gov)
Hudson Bay Capital Management LP141,269$6.6munder 0.1%Added+73,76914 Feb 2025 (the filing on sec.gov)
Woodline Partners LP126,201$5.9munder 0.1%Trimmed-2,83414 Feb 2025 (the filing on sec.gov)
Moore Capital Management LP35,000$1.6munder 0.1%Held014 Feb 2025 (the filing on sec.gov)
Winton Group Ltd19,005$894k0.06%Added+9,21012 Feb 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2024 to Q4 2024, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
15 in Q3 2024 to 12 in Q2 2026

Tracked managers listing it, at least.

051015202016201720192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
CYTK by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20141$128kn.a.n.a.
Q4 20152$14mn.a.n.a.
Q1 20161$8.6mn.a.n.a.
Q2 20161$3.2mn.a.n.a.
Q3 20161$184kn.a.n.a.
Q1 20171$4.3mn.a.n.a.
Q2 20172$9.9mn.a.n.a.
Q3 20172$18mn.a.n.a.
Q2 20181$374kn.a.n.a.
Q3 20181$349kn.a.n.a.
Q4 20181$224kn.a.n.a.
Q1 20191$513kn.a.n.a.
Q2 20192$7.5mn.a.n.a.
Q3 20192$5.5mn.a.n.a.
Q4 20193$35mn.a.n.a.
Q1 20206$20mn.a.n.a.
Q2 20206$75mn.a.n.a.
Q3 20205$114mn.a.n.a.
Q4 20203$90mn.a.n.a.
Q1 20213$90mn.a.n.a.
Q2 20212$74mn.a.n.a.
Q3 20217$643mn.a.n.a.
Q4 202110$794mn.a.n.a.
Q1 20226$624mn.a.n.a.
Q2 202210$1.0bnn.a.n.a.
Q3 20229$1.0bnn.a.n.a.
Q4 202212$1.1bnn.a.n.a.
Q1 202311$895mn.a.n.a.
Q2 20238$781mn.a.n.a.
Q3 202310$753mn.a.n.a.
Q4 202312$2.4bn84
Q1 202415$1.8bn105
Q2 202416$1.5bn104
Q3 202415$1.5bn103
Q4 202411$1.1bn56
Q1 20259$544m71
Q2 20254$268m12
Q3 20256$1.3bn42
Q4 20258$1.5bn1711
Q1 202611$1.5bn1516
Q2 202612$1.3bn2312

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

CYTK and LLY →CYTK and JNJ →CYTK and VRTX →Choose a stock to compare with CYTK →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own CYTK, latest filings →Back to the 13F Explorer →