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Cytokinetics (CYTK)
NASDAQ
$75.59-$1.25 (-1.63%)
Price as of Aug 21, 2026 7:30 PM EDT- $10.7BMarket Cap
- 100.42%1-Year Change
- BiotechnologyIndustry
Cytokinetics (CYTK)
$75.59-$1.25 (-1.63%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 16.15% | 20.1M | +3.5M (+17.65%) | Jun 30, 2026 |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 15.04% | 18.7M | +1.2M (+6.38%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 12.43% | 15.5M | +216,539 (+1.40%) | Dec 31, 2024 |
BLACKROCK INC. | 11.79% | 14.7M | +2.3M (+15.39%) | Jun 30, 2024 |
VANGUARD GROUP INC | 9.68% | 12.0M | +191,336 (+1.59%) | Dec 31, 2025 |
WELLINGTON MANAGEMENT GROUP LLP | 5.57% | 6.9M | -1.1M (-15.55%) | Jun 30, 2026 |
VANGUARD PORTFOLIO MANAGEMENT LLC | 5.39% | 6.7M | +868,017 (+12.93%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
SPDR SERIES TRUST | 9.51% | 11.8M | 0 (0.00%) | Apr 30, 2026 |
AQR Funds | 8.71% | 10.8M | 0 (0.00%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 7.79% | 9.7M | +175,131 (+1.81%) | Mar 31, 2026 |
Virtus Investment Trust | 6.98% | 8.7M | 0 (0.00%) | Mar 31, 2026 |
Virtus Strategy Trust | 5.53% | 6.9M | +6.9M (+100.00%) | Sep 30, 2025 |
T. Rowe Price Capital Appreciation Fund, Inc. | 4.11% | 5.1M | +1.7M (+33.58%) | Mar 31, 2026 |
LORD ABBETT INVESTMENT TRUST | 3.32% | 4.1M | 0 (0.00%) | May 31, 2026 |
Current Ownership Distribution
- Institutions2.4B (66.33%)
- Mutual Funds1.2B (33.16%)
- Insiders18.1M (0.51%)
- Other0 (0.00%)
Insider Transactions
- 0.51% (18.1M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 7Number of InsiderSelling (last 12 months)
- $277.2MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Blum Robert I President & CEO | Exempt | Aug 10, 2026 | $0.00 | 7,500 | $0.00 | 171,745 |
Blum Robert I President & CEO | Exempt | Aug 10, 2026 | $79,500.00 | 7,500 | $10.60 | 385,320 |
Blum Robert I President & CEO | Sell | Aug 10, 2026 | $575,700.00 | 7,500 | $76.76 | 377,820 |
Malik Fady Ibraham EVP Research & Development | Exempt | Jul 21, 2026 | $0.00 | 3,500 | $0.00 | 33,886 |
Malik Fady Ibraham EVP Research & Development | Exempt | Jul 21, 2026 | $27,300.00 | 3,500 | $7.80 | 157,402 |
Malik Fady Ibraham EVP Research & Development | Sell | Jul 21, 2026 | $282,065.00 | 3,500 | $80.59 | 153,902 |
HENDERSON JOHN T | Award | Jul 15, 2026 | $22,472.64 | 272 | $82.62 | 78,360 |
Daly James M | Award | Jul 15, 2026 | $12,475.62 | 151 | $82.62 | 3,390 |
WIERENGA WENDELL | Award | Jul 15, 2026 | $6,196.50 | 75 | $82.62 | 35,563 |
Harrington Robert Arthur | Award | Jul 15, 2026 | $12,475.62 | 151 | $82.62 | 21,932 |
Wysenski Nancy | Award | Jul 15, 2026 | $6,196.50 | 75 | $82.62 | 33,992 |
Kaye Edward M. MD | Award | Jul 15, 2026 | $12,475.62 | 151 | $82.62 | 10,434 |
Malik Fady Ibraham EVP Research & Development | Exempt | Jul 07, 2026 | $0.00 | 3,500 | $0.00 | 37,386 |
Malik Fady Ibraham EVP Research & Development | Exempt | Jul 07, 2026 | $27,300.00 | 3,500 | $7.80 | 157,402 |
Malik Fady Ibraham EVP Research & Development | Sell | Jul 07, 2026 | $303,170.00 | 3,500 | $86.62 | 153,902 |
Callos Andrew EVP, Chief Commercial Officer | Exempt | Jul 01, 2026 | $0.00 | 15,000 | $0.00 | 24,000 |
Lee Sung EVP, Chief Financial Officer | Exempt | Jul 01, 2026 | $0.00 | 1,112 | $0.00 | 26,709 |
Callos Andrew EVP, Chief Commercial Officer | Exempt | Jul 01, 2026 | $348,900.00 | 15,000 | $23.26 | 73,555 |
Lee Sung EVP, Chief Financial Officer | Exempt | Jul 01, 2026 | $53,943.12 | 1,112 | $48.51 | 64,333 |
Callos Andrew EVP, Chief Commercial Officer | Sell | Jul 01, 2026 | $1.3M | 15,000 | $85.80 | 58,555 |
Lee Sung EVP, Chief Financial Officer | Sell | Jul 01, 2026 | $97,622.48 | 1,112 | $87.79 | 63,221 |
Blum Robert I President & CEO | Sell | Jun 15, 2026 | $528,450.00 | 7,500 | $70.46 | 385,330 |
Malik Fady Ibraham EVP Research & Development | Exempt | Apr 07, 2026 | $0.00 | 3,500 | $0.00 | 58,386 |
Malik Fady Ibraham EVP Research & Development | Exempt | Apr 07, 2026 | $0.00 | 1,000 | $0.00 | 0 |
Malik Fady Ibraham EVP Research & Development | Exempt | Apr 07, 2026 | $27,300.00 | 3,500 | $7.80 | 157,402 |
Malik Fady Ibraham EVP Research & Development | Sell | Apr 07, 2026 | $228,235.00 | 3,500 | $65.21 | 153,902 |
Malik Fady Ibraham EVP Research & Development | Exempt | Apr 07, 2026 | $10,600.00 | 1,000 | $10.60 | 154,902 |
Malik Fady Ibraham EVP Research & Development | Sell | Apr 07, 2026 | $64,750.00 | 1,000 | $64.75 | 153,902 |
Blum Robert I President & CEO | Sell | Apr 01, 2026 | $499,725.00 | 7,500 | $66.63 | 422,830 |
Callos Andrew EVP, Chief Commercial Officer | Sell | Mar 31, 2026 | $236,535.00 | 3,639 | $65.00 | 66,004 |