Allene M. Diaz
CIK 1773314 · last filed 2026-07-09
Allene M. Diaz is a corporate insider who has filed 31 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing, for IONS, was dated Jul 9, 2026. Across all open-market trades the lifetime net is −$5.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $153.0K across reported positions. 22 SEC filings were submitted jointly with IONIS PHARMACEUTICALS INC.
"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.
IONS 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
2855 GAZELLE COURT
CARLSBAD, CA 92010
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| IONS | Director | 3,811 | $40.15 | $153.0K | -$5.39M | 15 | 2026-07-09 |
| Mersana Therapeutics, Inc. (MRSN) Delisted | Director | 0 | $29.08 | $0 | $0 | 7 | 2026-01-06 |
| Allena Pharmaceuticals, Inc. (ALNA) Delisted | Director | — | $0.07 | — | $0 | 3 | 2021-06-04 |
Recent Filings
31 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-07-09 | IONS | Mixed | — | -$387.3K | EDGAR |
| 2026-07-07 | IONS | Notice (144) | −10,111 | -$863.6K | EDGAR |
| 2026-07-06 | IONS | Grant (A) | — | $0 | EDGAR |
| 2026-03-31 | IONS | Notice (144) | −68,800 | -$5.47M | EDGAR |
| 2026-03-05 | IONS | Mixed | −14,557 | -$2.75M | EDGAR |
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | −578 | $0 | EDGAR |
| 2025-08-29 | IONS | Notice (144) | −1,427 | -$60.7K | EDGAR |
| 2025-08-26 | IONS | Sell (S) | −1,427 | -$60.7K | EDGAR |
| 2025-07-17 | IONS | Exer (M) | +4,079 | $0 | EDGAR |
| 2025-07-02 | IONS | 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.