WIERENGA WENDELL — SEC Form 4 filings
SEC reporting owner CIK 1239956. 13 Form 4 filings on record with FilingPulse; latest filed 2026-09-01.
Transaction summary — filings shown
Covers all 13 filings on record, filed 2024-01-05 to 2026-09-01. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 3 filings — 28,407 shares, $1,881,925 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 27.
- Largest priced transaction: sale of 20,000 shares @ $66.14 ($1,322,800) in CYTOKINETICS INC, filed 2025-12-23.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| CYTOKINETICS INC (CYTK) | Director | 8 | — | 3 legs · 28,407 sh · $1,881,925 | 12 |
| Crinetics Pharmaceuticals, Inc. (CRNX) | Director | 2 | — | — | 12 |
| Dermata Therapeutics, Inc. (DRMA) | Director | 3 | — | — | 3 |
Form 4 filings — WIERENGA WENDELL
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-01 | 4 | Crinetics Pharmaceuticals, Inc. (CRNX) | Disposition to issuer (D): 116,146 @ $85 · Disposition to issuer (D): 5,925 @ $85 · Disposition to issuer (D): 12,500 (derivative) @ $61.76 · Disposition to issuer (D): 12,500 (derivative) @ $61.77 · Disposition to issuer (D): 17,500 (derivative) @ $64.77 · Disposition to issuer (D): 17,500 (derivative) @ $66.71 · +4 more | EDGAR |
| 2026-07-16 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 75 @ $82.62 | EDGAR |
| 2026-06-22 | 4 | Crinetics Pharmaceuticals, Inc. (CRNX) | Grant/award (A): 5,925 @ $0 · Grant/award (A): 9,730 (derivative) @ $0 | EDGAR |
| 2026-05-27 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 2,851 @ $0 · Grant/award (A): 4,301 (derivative) @ $0 | EDGAR |
| 2026-05-05 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 4,032 @ $12.40 · Sale (S): 4,032 @ $75 · Option exercise (M): 4,032 (derivative) @ $0 | EDGAR |
| 2026-04-15 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 95 @ $65.37 | EDGAR |
| 2026-01-16 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 98 @ $63.44 | EDGAR |
| 2026-01-06 | 4 | Dermata Therapeutics, Inc. (DRMA) | Grant/award (A): 2,500 (derivative) @ $0 | EDGAR |
| 2025-12-23 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 20,000 @ $7.61 · Sale (S): 20,000 @ $66.14 · Option exercise (M): 20,000 (derivative) @ $0 | EDGAR |
| 2025-10-27 | 4 | CYTOKINETICS INC (CYTK) | Option exercise (M): 4,375 @ $10 · Sale (S): 4,375 @ $58.68 · Option exercise (M): 4,375 (derivative) @ $0 | EDGAR |
| 2025-10-21 | 4 | CYTOKINETICS INC (CYTK) | Grant/award (A): 99 @ $62.80 | EDGAR |
| 2025-01-14 | 4 | Dermata Therapeutics, Inc. (DRMA) | Grant/award (A): 5,000 (derivative) @ $0 | EDGAR |
| 2024-01-05 | 4 | Dermata Therapeutics, Inc. (DRMA) | Grant/award (A): 10,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-04 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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