Christopher Stagno
CIK 1572329 · Chief Accounting Officer · last filed 2026-05-19
"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.
Loading insider history…
Disclosed Exposure
$230.2K
Companies
3
Total Filings
57
Lifetime Open-Market Net
-$82.3K
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 3 of 6
57 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-10-04 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −65 | -$15.2K | EDGAR |
| 2022-09-06 | Aspen Technology, Inc. (AZPN) Delisted | Grant (A) | +875 | $0 | EDGAR |
| 2022-07-05 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −49 | -$9.5K | EDGAR |
| 2022-05-25 | — | Mixed | +3,351 | -$21.2K | |
| 2022-05-18 | Aspen Technology, Inc. (AZPN) Delisted | Disp (D) | −4,457 | $0 | EDGAR |
| 2022-04-04 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −66 | -$10.8K | EDGAR |
| 2022-01-04 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −55 | -$8.3K | EDGAR |
| 2021-10-13 | Aspen Technology, Inc. (AZPN) Delisted | Grant (A) | +1,766 | $0 | EDGAR |
| 2021-10-04 | Aspen Technology, Inc. (AZPN) Delisted | Tax (F) | −55 | -$6.9K | EDGAR |
| 2021-09-03 | Aspen Technology, Inc. (AZPN) Delisted | Grant (A) | +1,448 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.