SEC Insider Transactions from WIERENGA WENDALL.

Last updated: 2026-03-14 11:32 UTC | Total transactions: 46

Wierenga Wendall, a director at Cytokinetics Inc. ($CYTK), sold shares on the open market once in the last year, totaling $769 thousand, with the most recent sale on April 21, 2025. These sales rank 5,509th among 11,678 insiders in our database, where the average is 8.6 million per person across 6.4 transactions on average. Wierenga Wendall made no open market purchases during this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
July 15, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 164 $38.01 32,345.0000 118,410,689 0.51% 0.00%
June 11, 2025 Crinetics Pharmaceuticals, Inc. $CRNX WIERENGA WENDALL Not found A Stock Option (right to buy) 10350 $0.00 10,350.0000 92,926,000 9999.99% 0.01%
June 11, 2025 Crinetics Pharmaceuticals, Inc. $CRNX WIERENGA WENDALL Not found A Common Stock 6900 $0.00 116,146.0000 92,926,000 6.32% 0.01%
May 14, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 7333 $0.00 32,181.0000 118,410,689 29.51% 0.01%
May 14, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Non-Qualified Stock Option (Right to Buy) 10880 $0.00 10,880.0000 118,410,689 9999.99% 0.01%
April 21, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 20000 $38.46 24,848.0000 118,410,689 44.60% 0.02%
April 21, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Stock Option (Right to Buy) 20000 $0.00 0.0000 118,410,689 100.00% 0.02%
April 21, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 20000 $6.21 44,848.0000 118,410,689 80.49% 0.02%
April 15, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 162 $38.56 24,848.0000 118,410,689 0.66% 0.00%
Jan. 2, 2025 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 127 $48.93 24,686.0000 0 0.52% 0.00%
Dec. 16, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 742 $7.37 25,301.0000 0 3.02% 0.00%
Dec. 16, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 742 $48.61 24,559.0000 0 2.93% 0.00%
Dec. 16, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 742 $0.00 0.0000 0 100.00% 0.00%
Nov. 25, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 742 $50.00 24,559.0000 0 2.93% 0.00%
Nov. 25, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 742 $0.00 742.0000 0 50.00% 0.00%
Nov. 25, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 742 $7.37 25,301.0000 0 3.02% 0.00%
Oct. 28, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 4452 $52.25 24,559.0000 0 15.35% 0.00%
Oct. 28, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 4452 $0.00 1,484.0000 0 75.00% 0.00%
Oct. 28, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 4452 $7.37 29,011.0000 0 18.13% 0.00%
Oct. 1, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 118 $52.60 24,559.0000 0 0.48% 0.00%
July 1, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 114 $0.00 24,441.0000 0 0.47% 0.00%
June 7, 2024 Crinetics Pharmaceuticals, Inc. $CRNX WIERENGA WENDALL Not found A Common Stock 3400 $0.00 109,246.0000 68,175,000 3.21% 0.00%
June 7, 2024 Crinetics Pharmaceuticals, Inc. $CRNX WIERENGA WENDALL Not found A Stock Option (right to buy) 12500 $0.00 12,500.0000 68,175,000 9999.99% 0.02%
May 15, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 5600 $0.00 24,327.0000 0 29.90% 0.00%
May 15, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Non-Qualified Stock Option (Right to Buy) 3636 $0.00 3,636.0000 0 9999.99% 0.00%
Jan. 2, 2024 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 74 $84.12 18,727.0000 0 0.40% 0.00%
Dec. 27, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 5000 $0.00 5,000.0000 0 50.00% 0.00%
Dec. 27, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 5000 $0.00 0.0000 0 100.00% 0.00%
Dec. 27, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 5000 $4.44 23,653.0000 0 26.81% 0.00%
Dec. 27, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 5000 $73.60 18,653.0000 0 21.14% 0.00%
Dec. 27, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 5000 $4.44 23,653.0000 0 26.81% 0.00%
Dec. 27, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 5000 $73.60 18,653.0000 0 21.14% 0.00%
Oct. 2, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 448 $27.88 18,653.0000 0 2.46% 0.00%
Aug. 21, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 6020 $6.72 24,225.0000 0 33.07% 0.00%
Aug. 21, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 6020 $32.02 18,205.0000 0 24.85% 0.00%
Aug. 21, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 6020 $0.00 0.0000 0 100.00% 0.00%
July 3, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 374 $33.36 18,205.0000 0 2.10% 0.00%
June 16, 2023 Crinetics Pharmaceuticals, Inc. $CRNX WIERENGA WENDALL Director A Stock Option (right to buy) 17500 $0.00 17,500.0000 0 9999.99% 0.00%
June 16, 2023 Crinetics Pharmaceuticals, Inc. $CRNX WIERENGA WENDALL Director A Common Stock 6000 $0.00 105,846.0000 0 6.01% 0.00%
May 10, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 5000 $0.00 17,831.0000 0 38.97% 0.00%
May 10, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Non-Qualified Stock Option (Right to Buy) 10000 $0.00 10,000.0000 0 9999.99% 0.00%
April 3, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 298 $37.71 12,831.0000 0 2.38% 0.00%
Feb. 6, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Common Stock 7000 $6.72 19,533.0000 0 55.85% 0.00%
Feb. 6, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director S Common Stock 7000 $45.00 12,533.0000 0 35.84% 0.00%
Feb. 6, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director M Non-Qualified Stock Option (Right to Buy) 7000 $0.00 6,020.0000 0 53.76% 0.00%
Jan. 3, 2023 CYTOKINETICS INC $CYTK WIERENGA WENDALL Director A Common Stock 253 $44.35 12,533.0000 0 2.06% 0.00%