Catherine J Mackey
CIK 1645330 · last filed 2026-06-18
Catherine J Mackey is a corporate insider who has filed 34 SEC Form 4 insider transactions across 8 companies since 2015. The most recent filing, for IDYA, was dated Jun 18, 2026. Across all open-market trades the lifetime net is −$37.2K, making them a net seller over the disclosed history.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
GWPH price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
SAN DIEGO, CA 92121
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| IDYA | Director | — | $36.11 | — | $0 | 5 | 2026-06-18 |
| VYGR | Director | — | $2.45 | — | $0 | 5 | 2026-06-11 |
| Avid Bioservices, Inc. (CDMO) Delisted | Director | 43,379 | $12.49 | $541.8K | $0 | 4 | 2024-12-17 |
| TRIL | Director | — | $25.36 | — | $0 | 1 | 2021-07-02 |
| GW PHARMACEUTICALS PLC (GWPH) Delisted | Director | 10,536 | $218.96 | $2.31M | -$37.2K | 8 | 2021-03-02 |
| Avid Bioservices, Inc. (CDMOP) Delisted | Director | — | $25.06 | — | $0 | 3 | 2020-12-16 |
| Poseida Therapeutics, Inc. (PSTX) Delisted | Director | — | $9.50 | — | $0 | 1 | 2020-07-13 |
| SEQUENOM INC (SQNM) Delisted | Director | 0 | — | — | $0 | 4 | 2016-09-07 |
Recent Filings
34 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-18 | IDYA | Grant (A) | — | $0 | EDGAR |
| 2026-06-11 | VYGR | Grant (A) | — | $0 | EDGAR |
| 2025-06-26 | IDYA | Grant (A) | — | $0 | EDGAR |
| 2025-06-04 | VYGR | Grant (A) | — | $0 | EDGAR |
| 2025-02-07 | — | Disp (D) | −43,379 | $0 | |
| 2024-12-17 | Avid Bioservices, Inc. (CDMO) Delisted | Mixed | +26,756 | $0 | EDGAR |
| 2024-06-07 | VYGR | Grant (A) | — | $0 | EDGAR |
| 2024-05-31 | IDYA | Grant (A) | — | $0 | EDGAR |
| 2023-12-18 | Avid Bioservices, Inc. (CDMO) Delisted | Mixed | +9,612 | $0 | EDGAR |
| 2023-06-09 | IDYA | Grant (A) | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.