William A Hasler
CIK 1038822 · last filed 2026-05-21
William A Hasler is a corporate insider who has filed 34 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for GSAT, was dated May 21, 2026. Across all open-market trades the lifetime net is −$147.6K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.1M 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.
GSAT 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
WOODLAND, CA 95776
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GSAT | Director | 65,546 | $82.38 | $5.40M | -$147.6K | 20 | 2026-05-21 |
| AVNW | Director | 37,094 | $18.94 | $702.6K | $0 | 8 | 2016-01-12 |
| AVIAT NETWORKS, INC. (HSTX) Delisted | Director | 33,352 | — | — | $0 | 4 | 2009-03-23 |
| TOUSA INC (TOA) Delisted | Director | — | — | — | $0 | 1 | 2007-03-06 |
Recent Filings
34 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-21 | GSAT | Grant (A) | +3,333 | $0 | EDGAR |
| 2026-01-07 | GSAT | Grant (A) | +780 | $0 | EDGAR |
| 2025-05-12 | GSAT | Grant (A) | +3,333 | $0 | EDGAR |
| 2025-01-07 | GSAT | Grant (A) | +22,831 | $0 | EDGAR |
| 2024-12-04 | GSAT | Sell (S) | −90,000 | -$173.8K | EDGAR |
| 2024-05-14 | GSAT | Grant (A) | +50,000 | $61.5K | EDGAR |
| 2024-01-04 | GSAT | Grant (A) | +26,738 | $50.0K | EDGAR |
| 2023-05-12 | GSAT | Grant (A) | +50,000 | $51.0K | EDGAR |
| 2023-01-05 | GSAT | Grant (A) | +38,462 | $50.0K | EDGAR |
| 2022-05-12 | GSAT | Grant (A) | +50,000 | $53.0K | 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.