Mark K Oki
CIK 1491847 · Chief Financial Officer · last filed 2026-01-30
Mark K Oki is a Chief Financial Officer who has filed 35 SEC Form 4 insider transactions across 4 companies since 2011. The most recent filing, for ACHV, was dated Jan 30, 2026. Across all open-market trades the lifetime net is −$108.0K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $863.7K 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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
ACHV 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
22722 29TH DR. SE, SUITE 100
BOTHELL, WA 98021
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ACHV | Chief Financial Officer | 127,940 | $6.61 | $845.0K | -$117.3K | 5 | 2026-01-30 |
| AYTU | Chief Financial Officer | 9,500 | $1.96 | $18.6K | $20.7K | 4 | 2023-08-15 |
| VIVUS INC (VVUS) Delisted | Chief Financial Officer & CAO | 12,100 | — | — | $40.7K | 11 | 2020-01-31 |
| Alexza Pharmaceuticals Inc. (ALXA) Delisted | Former SVP, CFO, Secretary | 13,713 | — | — | -$52.1K | 15 | 2016-01-19 |
Recent Filings
35 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-30 | ACHV | Grant (A) | — | $0 | EDGAR |
| 2025-09-22 | ACHV | Mixed | +117,940 | -$146.2K | EDGAR |
| 2025-09-08 | ACHV | Grant (A) | — | $0 | EDGAR |
| 2025-03-19 | ACHV | Buy (P) | +10,000 | $28.9K | EDGAR |
| 2024-12-09 | ACHV | Grant (A) | — | $0 | EDGAR |
| 2023-08-15 | AYTU | Grant (A) | — | $0 | EDGAR |
| 2022-11-28 | AYTU | Buy (P) | +90,000 | $20.7K | EDGAR |
| 2022-11-21 | AYTU | Grant (A) | +90,000 | $20.7K | EDGAR |
| 2022-01-19 | AYTU | Grant (A) | +100,000 | $0 | EDGAR |
| 2020-01-31 | VIVUS INC (VVUS) Delisted | 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.