WIERENGA WENDELL

Director · CRNX, CYTK

As of 2026-09-16, WIERENGA WENDELL has 29 Form 4 transactions on record across 2 companies — 28 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $2.5MIndirect: $0$2.5Mas of 2026-09-16
  • Direct $2.5M
  • Indirect $0
CYTKdirect35,563 sh$2.5M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

CYTK · 15 trades
2026-07-15: Award / grant, 75 sh ($6K)2026-05-27: Award / grant, 2,851 sh ($0)2026-05-27: Award / grant, 4,301 sh ($0)2026-05-05: Sale, 4,032 sh ($302K)2026-05-05: Option exercise, 4,032 sh ($50K)2026-05-05: Option exercise, 4,032 sh ($0)2026-04-15: Award / grant, 95 sh ($6K)2026-01-15: Award / grant, 98 sh ($6K)2025-12-22: Sale, 20,000 sh ($1.3M)2025-12-22: Option exercise, 20,000 sh ($152K)2025-12-22: Option exercise, 20,000 sh ($0)2025-10-27: Sale, 4,375 sh ($257K)2025-10-27: Option exercise, 4,375 sh ($44K)2025-10-27: Option exercise, 4,375 sh ($0)2025-10-15: Award / grant, 99 sh ($6K)
CRNX · 12 trades
2026-09-01: Disposition, 116,146 sh ($9.9M)2026-09-01: Disposition, 17,500 sh ($1.2M)2026-09-01: Disposition, 17,500 sh ($1.1M)2026-09-01: Disposition, 17,500 sh ($1.1M)2026-09-01: Disposition, 12,500 sh ($772K)2026-09-01: Disposition, 12,500 sh ($772K)2026-09-01: Disposition, 10,350 sh ($545K)2026-09-01: Disposition, 12,500 sh ($504K)2026-09-01: Disposition, 5,925 sh ($504K)2026-09-01: Disposition, 9,730 sh ($478K)2026-06-18: Award / grant, 9,730 sh ($0)2026-06-18: Award / grant, 5,925 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-05-05CYTKSale4,032 @ $75.00$302K−11.0% of holding32,637Form 4
2025-12-22CYTKSale20,000 @ $66.14$1.3M−38.1% of holding32,444Form 4
2025-10-27CYTKSale4,375 @ $58.68$257K−11.9% of holding32,444Form 4
26 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-01CRNXDisposition116,1465,925Form 4
2026-09-01CRNXDisposition17,5000Form 4
2026-09-01CRNXDisposition17,5000Form 4
2026-09-01CRNXDisposition17,5000Form 4
2026-09-01CRNXDisposition12,5000Form 4
2026-09-01CRNXDisposition12,5000Form 4
2026-09-01CRNXDisposition10,3500Form 4
2026-09-01CRNXDisposition12,5000Form 4
2026-09-01CRNXDisposition5,9250Form 4
2026-09-01CRNXDisposition9,7300Form 4
2026-07-15CYTKAward / grant7535,563Form 4
2026-06-18CRNXAward / grant9,7309,730Form 4
2026-06-18CRNXAward / grant5,925122,071Form 4
2026-05-27CYTKAward / grant2,85135,488Form 4
2026-05-27CYTKAward / grant4,3014,301Form 4
2026-05-05CYTKOption exercise4,03236,669Form 4
2026-05-05CYTKOption exercise4,0320Form 4
2026-04-15CYTKAward / grant9532,637Form 4
2026-01-15CYTKAward / grant9832,542Form 4
2026-01-02—Award / grant2,5002,500Form 4
2025-12-22CYTKOption exercise20,00052,444Form 4
2025-12-22CYTKOption exercise20,0000Form 4
2025-10-27CYTKOption exercise4,37536,819Form 4
2025-10-27CYTKOption exercise4,3750Form 4
2025-10-15CYTKAward / grant9932,444Form 4
2025-01-13—Award / grant5,0005,000Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.