JOHN R STUELPNAGEL
CIK 1189140 · Sr VP and COO · last filed 2026-06-08
JOHN R STUELPNAGEL is a Sr VP and COO who has filed 66 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for TXG, was dated Jun 8, 2026. Across all open-market trades the lifetime net is −$44.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $65.8M 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.
$65.81M
2
66
-$44.57M
Holdings By Company
Recent Filings
66 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-08 | TXG | Grant (A) | +8,829 | $0 | EDGAR |
| 2025-06-05 | TXG | Grant (A) | +15,357 | $0 | EDGAR |
| 2024-06-13 | TXG | Grant (A) | +8,649 | $0 | EDGAR |
| 2023-06-16 | TXG | Grant (A) | +1,865 | $0 | EDGAR |
| 2023-06-07 | TXG | Sell (S) | −10,000 | -$548.9K | EDGAR |
| 2022-06-17 | TXG | Grant (A) | +2,120 | $0 | EDGAR |
| 2022-01-04 | TXG | Sell (S) | −5,000 | -$754.6K | EDGAR |
| 2021-12-03 | TXG | Sell (S) | −5,000 | -$755.8K | EDGAR |
| 2021-11-18 | TXG | Sell (S) | −5,000 | -$794.2K | EDGAR |
| 2021-11-03 | TXG | Sell (S) | −5,000 | -$817.6K | EDGAR |