WIERENGA WENDELL
SEC insider (Form 3/4/5 filer). CIK 0001239956. Director at CYTOKINETICS INC (CYTK) and 2 other issuers. 17 reported Form 4/5 transactions since Sep 2024; latest on Oct 16, 2026. Located in SOUTH SAN FRANCISCO, CA.
Companies WIERENGA WENDELL has filed insider reports for
- CYTOKINETICS INC (CYTK): Director
- Crinetics Pharmaceuticals, Inc. (CRNX): Director
- Dermata Therapeutics, Inc. (DRMA): Director
WIERENGA WENDELL
CIK: 0001239956
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (17 total)
- Oct 16, 2026CYTK
CYTOKINETICS INC
AwardDirect97 shares at avg. $63.92$6K - Sep 1, 2026CRNX
Crinetics Pharmaceuticals, Inc.
DispositionDirect5.9K shares at avg. $85.00$504K - Sep 1, 2026CRNX
Crinetics Pharmaceuticals, Inc.
DispositionDirect116.1K shares at avg. $85.00$9.9M - Jul 15, 2026CYTK
CYTOKINETICS INC
AwardDirect75 shares at avg. $82.62$6K - Jun 18, 2026CRNX
Crinetics Pharmaceuticals, Inc.
AwardDirect5.9K shares- - May 27, 2026CYTK
CYTOKINETICS INC
AwardDirect2.9K shares- - May 5, 2026CYTK
CYTOKINETICS INC
SaleDirect4K shares at avg. $75.00$302K - May 5, 2026CYTK
CYTOKINETICS INC
ExerciseDirect4K shares at avg. $12.40$50K - Apr 15, 2026CYTK
CYTOKINETICS INC
AwardDirect95 shares at avg. $65.37$6K - Jan 15, 2026CYTK
CYTOKINETICS INC
AwardDirect98 shares at avg. $63.44$6K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 16, 2026 |  CYTK CYTOKINETICS INC | Award | 97 | $63.92 | $6,200 | Direct |
| Sep 1, 2026 |  CRNX Crinetics Pharmaceuticals, Inc. | Disposition | 5,925 | $85.00 | $503,625 | Direct |
| Sep 1, 2026 | CRNX Crinetics Pharmaceuticals, Inc. | Disposition | 116,146 | $85.00 | $9,872,410 | Direct |
| Jul 15, 2026 | CYTK CYTOKINETICS INC | Award | 75 | $82.62 | $6,197 | Direct |
| Jun 18, 2026 | CRNX Crinetics Pharmaceuticals, Inc. | Award | 5,925 | - | $0 | Direct |
| May 27, 2026 | CYTK CYTOKINETICS INC | Award | 2,851 | - | $0 | Direct |
| May 5, 2026 | CYTK CYTOKINETICS INC | Sale | 4,032 | $75.00 | $302,400 | Direct |
| May 5, 2026 | CYTK CYTOKINETICS INC | Exercise | 4,032 | $12.40 | $49,997 | Direct |
| Apr 15, 2026 | CYTK CYTOKINETICS INC | Award | 95 | $65.37 | $6,210 | Direct |
| Jan 15, 2026 | CYTK CYTOKINETICS INC | Award | 98 | $63.44 | $6,217 | Direct |
1-10 of 17 transactions