83 transactions on file (1 open-market purchase and 45 open-market sales).
45 open-market sales by GSAT insiders, between Sep 15, 2025 and Sep 18, 2026.
Discretionary.
Planned (10b5-1).
Not stated.
The 1 open-market purchase on file carries no plan label.
| Date | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-09-18 | Lynch James F Director Open-market sale Discretionary | Open-market sale Discretionary | −361,600 | $82.52 | −29.84M | 351,114 |
| 2026-09-18 | Monroe James III Director · 10% owner Open-market purchase | Open-market purchase | +361,600 | $82.52 | +29.84M | 408,253 |
| 2026-08-27 | Wolff Benjamin G Director Option exercise | Option exercise | +6,666 | $17.40 | +115.99K | 10,782 |
| 2026-08-27 | Wolff Benjamin G Director Option exercise | Option exercise | +6,666 | $19.50 | +129.99K | 17,448 |
| 2026-08-27 | Wolff Benjamin G Director Option exercise | Option exercise | +4,444 | $28.05 | +124.65K | 21,892 |
78 more transactions are on Measure
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| Insider | Role | On Sep 23, 2025 | Now | Change | Sold | Shape |
|---|---|---|---|---|---|---|
| Wolff Benjamin GDirector | Director | 60,827 | 4,116 | −93.23% | $8.01M$8.01M no plan | |
| Lynch James FDirector | Director | 822,714 | 351,114 | −57.32% | $38.83M$38.83M no plan | |
| Taylor Timothy EvanVP, Finance & Operations, Director | VP, Finance & Operations, Director | 320,244 | 170,244 | −46.84% | $12.45M$12.45M no plan |
4 more insiders are on Measure
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The assistant answers from what GSAT has actually filed: 17 annual reports filed with the SEC, 79 Form 4 filings from the last year and 2 funds that hold it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.
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Source
From SEC Form 4 filings, filed within two business days of a transaction.
Past transactions say nothing about future ones, and none of this is investment advice.
What each insider held after every open-market trade, over the last twelve months.
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Watch GSAT and every open-market Form 4 worth a row (a purchase, a senior officer's sale, anything at a million dollars) lands in the bell and a daily email, with the 10b5-1 word on it when the filing says so. Free.
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Every Form 4 GSAT insiders file, not just the latest handful, with vesting and tax withholding struck out so what's left reads as a decision.
Every filingMeasure
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Each stake priced at the quarter it was filed, and diffed against the quarter before: how big a bet it is for them, and by how much it moved.
Every position, sizedMeasure
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Whether this is one decision or a pattern, and how it compares with GSAT's own history of insider activity.
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The table above says who traded. This says what GSAT did over the following 30, 90 and 180 days after each open-market purchase and sale, from this company’s own record rather than a study about companies in general, and with the number of transactions shown beside every average.
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