Ticker · CUSIP 23282W605
Holders (tracked)
17
Combined shares
14,234,260
Combined value
$904.17M
Last close
$66.71
Quarter
2025Q4
Price · 1Y$66.71+27.23 (+68.97%)H $70.10 · L $29.84 · Avg Vol 1.9M
Insider sellCongress buyCongress sell
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
Price is +5.0% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
26 events
- Blum Robert I · President & CEO2026-04-15Sold $490.3K @ $65.38Insider sell
- Callos Andrew · EVP, Chief Commercial Officer2026-04-15Sold $491.8K @ $66.02Insider sell
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−223,128 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+105,618 shares · 2025Q4Position
- Two Sigma Investments opened position2026-02-17+274,017 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−117,077 shares · 2025Q4Position
- Steve Cohen (Point72) exited2026-02-17−471,482 shares · 2025Q4Position
- T. Rowe Price trimmed2026-02-17−436,729 shares · 2025Q4Position
- +17,100 shares · 2025Q4Position
- Wellington Management added2026-02-17+528,502 shares · 2025Q4Position
- Ron Baron (Baron Capital / BAMCO) exited2026-02-17−24,500 shares · 2025Q4Position
- AQR Capital Management trimmed2026-02-17−276,365 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−117,900 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+807,070 shares · 2025Q4Position
- Ken Fisher (Fisher Asset Mgmt) added2026-02-09+61,298 shares · 2025Q4Position
- Wellington Management trimmed2025-11-14−419,118 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+165,551 shares · 2025Q3Position
- Steve Cohen (Point72) opened position2025-11-14+471,482 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−5,481 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−116,144 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+500,871 shares · 2025Q3Position
- +24,500 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+279,800 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−1,184,072 shares · 2025Q3Position
- Ken Fisher (Fisher Asset Mgmt) added2025-11-12+27,907 shares · 2025Q3Position
- Norges Bank (Norway SWF) added2025-11-12+192,973 shares · 2024Q3Position
Insider activity
Last 30 days
Net (open-market)
−$982.1K
Buys
0 · $0
Sells
2 · $982.1K
Unique insiders
8
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-15 | HENDERSON JOHN T Director | A | 325 | $65.37 | $21.2K |
| 04-15 | WIERENGA WENDELL Director | A | 95 | $65.37 | $6.2K |
| 04-15 | Blum Robert I President & CEO · Officer, Director | S | 7,500 | $65.38 | $490.3K |
| 04-15 | Wysenski Nancy Director | A | 95 | $65.37 | $6.2K |
| 04-15 | Kaye Edward M. MD Director | A | 191 | $65.37 | $12.5K |
| 04-15 | Daly James M Director | A | 191 | $65.37 | $12.5K |
| 04-15 | Callos Andrew EVP, Chief Commercial Officer · Officer | S | 7,449 | $66.02 | $491.8K |
| 04-15 | Harrington Robert Arthur Director | A | 191 | $65.37 | $12.5K |
Follow-the-investor returns
If you'd copied each holder of CYTK…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $38.03 | +75.4% | $15.0M |
| AQR Capital Management | 2016Q1 | $40.47 | +64.9% | $15.8M |
| Wellington Management | 2016Q1 | $46.95 | +42.1% | $529.5M |
| Renaissance Technologies | 2016Q1 | $55.26 | +20.7% | $11.5M |
| D.E. Shaw & Co. | 2016Q1 | $56.05 | +19.0% | $5.4M |
| D.E. Shaw & Co. | 2016Q1 | $56.05 | +19.0% | $5.4M |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $56.89 | +17.3% | $307K |
| Paul Tudor Jones (Tudor Investment) | 2016Q1 | $56.89 | +17.3% | $307K |
| Steve Cohen (Point72) | 2019Q2 | $59.20 | +12.7% | $1.7M |
| Steve Cohen (Point72) | 2019Q2 | $59.20 | +12.7% | $1.7M |
| Two Sigma Investments | 2016Q1 | $62.64 | +6.5% | $18.3M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $63.08 | +5.8% | $23.6M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $63.08 | +5.8% | $23.6M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $63.08 | +5.8% | $23.6M |
| T. Rowe Price | 2017Q3 | $63.92 | +4.4% | $128.8M |
| Ken Fisher (Fisher Asset Mgmt) | 2023Q4 | $69.08 | -3.4% | $54.9M |
| Norges Bank (Norway SWF) | 2016Q4 | $10771.22 | -99.4% | $53.8M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions3
- Norges Bank (Norway SWF)+807,070$51.3M
- Two Sigma Investments+274,017$17.4M
- Paul Tudor Jones (Tudor Investment)+17,100$1.1M
Added to3
- Wellington Management+528,502$33.6M
- D.E. Shaw & Co.+105,618$6.7M
- Ken Fisher (Fisher Asset Mgmt)+61,298$3.9M
Trimmed5
- AQR Capital Management−276,365$17.2M
- Ken Griffin (Citadel Advisors)−223,128$14.2M
- Renaissance Technologies−117,900$7.5M
- Izzy Englander (Millennium Mgmt)−117,077$7.4M
- T. Rowe Price−436,729$28K
Exited2
- Steve Cohen (Point72)−471,482$25.9M
- Ron Baron (Baron Capital / BAMCO)−24,500$1.3M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 12 | $22.58B |
| 2022Q2 | 14 | $30.47B |
| 2022Q3 | 15 | $1.08B |
| 2022Q4 | 16 | $1.12B |
| 2023Q1 | 12 | $868.6M |
| 2023Q2 | 12 | $889.7M |
| 2023Q3 | 11 | $582.4M |
| 2023Q4 | 19 | $2.08B |
| 2024Q1 | 19 | $1.71B |
| 2024Q2 | 17 | $1.53B |
| 2024Q3 | 17 | $796.6M |
| 2024Q4 | 14 | $316.4M |
| 2025Q1 | 13 | $585.4M |
| 2025Q2 | 14 | $472.8M |
| 2025Q3 | 16 | $774.7M |
| 2025Q4 | 17 | $904.2M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-10-09 | Gilbert Cisneros | Buy | $1K – $15K | PDF ↗ |
| 2025-06-17 | Lisa McClain | Sell | $1K – $15K | PDF ↗ |
| 2025-06-11 | Lisa McClain | Buy | $1K – $15K | PDF ↗ |
Who owns CYTK
17 super-investors · 2025Q4
Tracked stake
14.23M
shares
Combined value
$904M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added4Trim7Sold2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Wellington Management | 7.94M | $504M |
| 2 | T. Rowe Price | 1.93M | $123M |
| 3 | Ken Griffin Citadel Advisors | 1.16M | $74M |
| 4 | Ken Fisher Fisher Asset Mgmt | 822.9K | $52M |
| 5 | Norges Bank Norway SWF | 807.1K | $51M |
| 6 | Ken Griffin Citadel Advisors | 354.4K | $23M |
| 7 | Two Sigma Investments | 274.0K | $17M |
| 8 | AQR Capital Management | 236.9K | $15M |
| 9 | Izzy Englander Millennium Mgmt | 225.5K | $14M |
| 10 | Renaissance Technologies | 172.1K | $11M |
| 11 | D.E. Shaw & Co. | 119.2K | $8M |
| 12 | D.E. Shaw & Co. | 81.5K | $5M |
| 13 | Ken Griffin Citadel Advisors | 56.3K | $4M |
| 14 | Steve Cohen Point72 | 26.1K | $2M |
| 15 | Paul Tudor Jones Tudor Investment | 12.5K | $794K |
| 16 | Steve Cohen Point72 | 11.1K | $705K |
| 17 | Paul Tudor Jones Tudor Investment | 4.6K | $292K |
Recent moves
20 transactions
- −24,500 · 2025Q4
- +528,502 · 2025Q4
- +105,618 · 2025Q4
- −223,128 · 2025Q4
- −471,482 · 2025Q4
- −276,365 · 2025Q4
- −117,077 · 2025Q4
- TRIMT. Rowe Price−436,729 · 2025Q4
- +274,017 · 2025Q4
- +17,100 · 2025Q4
- −117,900 · 2025Q4
- +807,070 · 2025Q4
- +61,298 · 2025Q4
- −419,118 · 2025Q3
- TRIMD.E. Shaw & Co.−5,481 · 2025Q3
- −116,144 · 2025Q3
- +500,871 · 2025Q3
- +471,482 · 2025Q3
- +24,500 · 2025Q3
- +165,551 · 2025Q3
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