Matthew Douglas Seath
CIK 2104858 · Chief Risk Officer/EVP · last filed 2026-09-30
Matthew Douglas Seath is a Chief Risk Officer/EVP who has filed 4 SEC Form 4 insider transactions across 1 company since 2026. The most recent filing, for TSBK, was dated Sep 30, 2026. Across all open-market trades the lifetime net is −$134.2K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $241.1K 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.
TSBK 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
HOQUIAM, WA 98550
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TSBK | Chief Risk Officer/EVP | 5,133 | $46.98 | $241.1K | -$134.2K | 3 | 2026-09-30 |
Recent Filings
4 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-09-30 | TSBK | Mixed | +1,208 | -$1.9K | EDGAR |
| 2026-09-25 | TSBK | Tax (F) | −135 | -$6.1K | EDGAR |
| 2026-08-03 | TSBK | Mixed | — | -$48.1K | EDGAR |
| 2026-07-31 | TSBK | Notice (144) | −3,000 | -$134.2K | 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.