WENDALL WIERENGA
CIK 1235945 · EVP, R&D · last filed 2025-07-16
WENDALL WIERENGA is an EVP, R&D who has filed 120 SEC Form 4 insider transactions across 8 companies since 2007. The most recent filing shows the insider was granted $6.2K of CYTK on Jul 16, 2025. Across all open-market trades the lifetime net is −$4.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.3M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$6.27M
8
120
-$4.35M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CYTK | Director | 32,345 | $70.15 | $2.27M | -$2.52M | 49 | 2025-07-16 |
| CRNX | Director | 116,146 | $34.47 | $4.00M | $0 | 8 | 2025-06-13 |
| CONCERT PHARMACEUTICALS, INC. (CNCE) Delisted | Director | — | $8.37 | — | $0 | 5 | 2018-06-18 |
| SEELOS THERAPEUTICS, INC. (APRI) Delisted | Director | 35,373 | — | — | $30.4K | 9 | 2018-01-08 |
| XENOPORT INC (XNPT) Delisted | Director | 0 | — | — | -$536.0K | 14 | 2016-07-06 |
| Anacor Pharmaceuticals, Inc. (ANAC) Delisted | Director | 0 | $10.19 | $0 | $0 | 3 | 2016-06-24 |
| ONYX PHARMACEUTICALS INC (ONXX) Delisted | Director | 11,180 | — | — | -$1.33M | 21 | 2013-04-01 |
| SANTARUS INC (SNTS) Delisted | EVP, R&D | — | — | — | $0 | 3 | 2013-03-12 |
Recent Filings
120 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-07-16 | CYTK | Grant (A) | +164 | $6.2K | EDGAR |
| 2025-06-13 | CRNX | Grant (A) | +6,900 | $0 | EDGAR |
| 2025-05-14 | CYTK | Grant (A) | +7,333 | $0 | EDGAR |
| 2025-04-21 | CYTK | Mixed | — | -$645.0K | EDGAR |
| 2025-04-16 | CYTK | Grant (A) | +162 | $6.2K | EDGAR |
| 2025-01-06 | CYTK | Grant (A) | +127 | $6.2K | EDGAR |
| 2024-12-16 | CYTK | Mixed | — | -$30.6K | EDGAR |
| 2024-11-26 | CYTK | Mixed | — | -$31.6K | EDGAR |
| 2024-10-31 | CYTK | Mixed | — | -$199.8K | EDGAR |
| 2024-10-03 | CYTK | Grant (A) | +118 | $6.2K | EDGAR |