Sean Patrick Buckley
CIK 1865116 · President, Revenue · 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.
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Disclosed Exposure
$6.38M
Companies
1
Total Filings
35
Lifetime Open-Market Net
-$3.99M
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 |
|---|---|---|---|---|---|---|---|
| MGNI | President, Revenue | 392,747 | $16.25 | $6.38M | -$3.99M | 35 | 2026-05-19 |
Recent Filings · Page 2 of 4
35 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-02-19 | MGNI | Tax (F) | −27,444 | -$548.9K | EDGAR |
| 2025-02-07 | MGNI | Sell (S) | −18,693 | -$373.9K | EDGAR |
| 2025-01-13 | MGNI | Grant (A) | +123,479 | $0 | EDGAR |
| 2024-11-19 | MGNI | Mixed | −20,134 | -$316.6K | EDGAR |
| 2024-11-13 | MGNI | Sell (S) | −5,242 | -$78.6K | EDGAR |
| 2024-08-21 | MGNI | Sell (S) | −5,246 | -$68.3K | EDGAR |
| 2024-08-16 | MGNI | Tax (F) | −9,646 | -$120.7K | EDGAR |
| 2024-07-17 | MGNI | Sell (S) | −39,211 | -$588.2K | EDGAR |
| 2024-06-07 | MGNI | Sell (S) | −21,653 | -$292.3K | EDGAR |
| 2024-05-29 | MGNI | Sell (S) | −2,682 | -$33.5K | 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.