Position in CYTK
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$590,517,483
+$62,612,067 QoQ
Shares Held
6,931,770
-13.5% QoQ
Ownership
4.99%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#3
of 477 holders
Holding Since
Jun 2020
25 quarters on record
Voting authority
Sole 0%
Shared 88%
None 12%
Common Shares in CYTK Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026WELLINGTON MANAGEMENT GROUP LLP holds $14,994,233,945 across 206 Biotechnology names. CYTK ranks #7 (3.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
3,247,658 | $1,613,209,155 | |
| 2 | ARGX |
Argenx SE
|
930,548 | $863,334,513 | |
| 3 | REGN |
Regeneron Pharmaceuticals, Inc.
|
1,270,087 | $791,950,042 | |
| 4 | RVMD |
Revolution Medicines, Inc.
|
3,843,415 | $719,794,757 | |
| 5 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
2,110,407 | $635,295,816 | |
| 6 | IONS |
Ionis Pharmaceuticals Inc
|
7,651,415 | $606,680,693 | |
| 7 | CYTK |
Cytokinetics Inc
This page
|
6,931,770 | $590,517,483 | |
| 8 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
825,714 | $443,367,129 |
All Filings in CYTK
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $606,273,717 | 7,116,724 | Shares | Sole | 2026-08-13 | |
| 2026-06-30 | $590,517,483 | 6,931,770 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $527,905,416 | 8,009,489 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $504,320,979 | 7,937,063 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $407,174,510 | 7,408,561 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $258,626,511 | 7,827,679 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $321,067,457 | 7,988,740 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $371,084,303 | 7,888,697 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $410,518,413 | 7,774,970 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $406,866,332 | 7,509,530 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $279,140,156 | 3,981,460 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $541,724,861 | 6,488,500 | Shares | Defined | 2024-02-12 | |
| 2023-09-30 | $235,278,043 | 7,986,356 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $269,793,458 | 8,270,799 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $264,861,649 | 7,526,617 | Shares | Defined | 2023-05-12 | |
| 2022-12-31 | $299,787,611 | 6,542,724 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $234,327,453 | 4,836,480 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $151,998,549 | 3,868,632 | Shares | Defined | 2022-08-15 | |
| 2022-03-31 | $49,490,786 | 1,344,493 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $51,189,620 | 1,123,072 | Shares | Defined | 2022-02-11 | |
| 2021-09-30 | $37,593,332 | 1,051,856 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $23,932,480 | 1,209,322 | Shares | Defined | 2021-08-16 | |
| 2021-03-31 | $23,173,400 | 996,277 | Shares | Defined | 2021-05-17 | |
| 2020-12-31 | $24,453,798 | 1,176,795 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $63,662,668 | 2,940,539 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $70,983,880 | 3,011,620 | Shares | Defined | 2020-08-14 | |
| No filing history on record for this holder in this stock. | ||||||