Christopher Stagno
CIK 1572329 · Chief Accounting Officer · last filed 2026-05-19
Christopher Stagno is a Chief Accounting Officer who has filed 57 SEC Form 4 insider transactions across 3 companies since 2013. The most recent filing shows the insider had shares withheld for taxes covering $6.2K of NABL on May 19, 2026. Across all open-market trades the lifetime net is −$82.3K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $230.2K 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.
$230.2K
3
57
-$82.3K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NABL | Chief Accounting Officer | 71,702 | $3.21 | $230.2K | $0 | 4 | 2026-05-19 |
| Aspen Technology, Inc. (AZPN) Delisted | CVP, Chief Accounting Officer | 0 | $264.33 | $0 | $0 | 29 | 2025-03-13 |
| BRIGHTCOVE INC (BCOV) Delisted | PAO, VP, CORPORATE CONTROLLER | 40,105 | $4.45 | $178.5K | -$82.3K | 23 | 2018-09-11 |
Recent Filings
57 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-19 | NABL | Tax (F) | −1,879 | -$6.2K | EDGAR |
| 2026-02-27 | NABL | Grant (A) | +30,000 | $0 | EDGAR |
| 2026-02-06 | NABL | Mixed | +17,966 | -$13.1K | EDGAR |
| 2025-05-23 | NABL | Grant (A) | +25,615 | $0 | EDGAR |
| 2025-03-13 | Aspen Technology, Inc. (AZPN) Delisted | Mixed | −5,814 | $0 | EDGAR |
| 2025-01-06 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −79 | -$19.7K | EDGAR |
| 2024-10-25 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −185 | -$43.9K | EDGAR |
| 2024-10-02 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −106 | -$25.1K | EDGAR |
| 2024-09-05 | Aspen Technology, Inc. (AZPN) Delisted | Grant (A) | +710 | $0 | EDGAR |
| 2024-07-02 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −86 | -$17.0K | EDGAR |