T. Rowe Price Investment Management, Inc.

13F Holdings History for CYTOKINETICS INC - COMMON STOCK (CYTK)

Symbol: CYTK on Nasdaq
Investment type: Equity / COMMON STOCK
Latest Disclosed Ownership: 17.6M shares
Security Ownership: 14.7%

Shares, Excluding Options vs Price

Value, Excluding Options

T. Rowe Price Investment Management, Inc. ownership in CYTOKINETICS INC COMMON STOCK (CYTK)

2025-08-14 - T. Rowe Price Investment Management, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 17.6M shares of CYTOKINETICS INC COMMON STOCK (CYTK). This represents 14.7% percent ownership of the company. In their previous filing dated 2025-05-07, T. Rowe Price Investment Management, Inc. had reported owning 13.4M shares, indicating an increase of 31.2% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
T. Rowe Price Investment Management, Inc.	14.7%	+30.9%	$675M	17.6M	+4,182,296	+31.2%	$38.34	13G/A	6/30/2025	14 Aug 2025 12:12:13
T. Rowe Price Investment Management, Inc.	11.3%		$501M	13.4M			$37.32	13G	4/30/2025	7 May 2025 10:37:54

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
6/30/2025	0.37%	+0.16%	$582M	17.6M	+7,647,189	+76.8%	$33.04	Q2 2025
3/31/2025	0.26%	-0.02%	$400M	9.96M	-796,872		$40.19	Q1 2025
12/31/2024	0.31%	+0.03%	$506M	10.8M	+1,062,136	+11%	$47.04	Q4 2024
9/30/2024	0.31%	+0.05%	$512M	9.69M	+1,551,310	+19.1%	$52.80	Q3 2024
6/30/2024	0.28%	+0.1%	$441M	8.14M	+3,017,088	+58.9%	$54.18	Q2 2024
3/31/2024	0.22%	+0.13%	$359M	5.12M	+2,892,104	+130%	$70.11	Q1 2024
12/31/2023	0.12%	+0.02%	$186M	2.23M	+413,299	+22.8%	$83.49	Q4 2023
9/30/2023	0.04%	+0%	$53.5M	1.82M	+11,870	+0.66%	$29.46	Q3 2023
6/30/2023	0.04%	+0.01%	$58.9M	1.8M	+286,254	+18.9%	$32.62	Q2 2023
3/31/2023	0.04%	+0.03%	$53.4M	1.52M	+1,054,416	+227%	$35.19	Q1 2023
12/31/2022	0.02%	+0.02%	$21.2M	464K	+463,646	NEW	$45.82	Q4 2022

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.