Brian Gephart
CIK 1778484 · CHIEF ACCOUNTING OFFICER · last filed 2026-05-19
Brian Gephart is a CHIEF ACCOUNTING OFFICER who has filed 44 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing shows the insider had shares withheld for taxes covering $48.6K of MGNI on May 19, 2026. Across all open-market trades the lifetime net is −$1.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.9M 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.
$1.93M
2
44
-$1.29M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGNI | CHIEF ACCOUNTING OFFICER | 118,596 | $16.25 | $1.93M | -$1.29M | 27 | 2026-05-19 |
| LEAF GROUP LTD. (LEAF) Delisted | Chief Financial Officer | 123,988 | $8.49 | $1.05M | $0 | 16 | 2021-06-02 |
Recent Filings
44 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-19 | MGNI | Tax (F) | −3,789 | -$48.6K | EDGAR |
| 2026-02-18 | MGNI | Tax (F) | −6,149 | -$71.9K | EDGAR |
| 2026-01-05 | MGNI | Grant (A) | +39,185 | $0 | EDGAR |
| 2025-11-18 | MGNI | Tax (F) | −3,549 | -$50.2K | EDGAR |
| 2025-09-05 | MGNI | Sell (S) | −27,671 | -$683.8K | EDGAR |
| 2025-08-20 | MGNI | Sell (S) | −2,961 | -$70.6K | EDGAR |
| 2025-05-16 | MGNI | Tax (F) | −3,045 | -$48.4K | EDGAR |
| 2025-05-14 | MGNI | Sell (S) | −6,334 | -$102.4K | EDGAR |
| 2025-03-05 | MGNI | Sell (S) | −6,250 | -$100.0K | EDGAR |
| 2025-02-19 | MGNI | Tax (F) | −6,749 | -$135.0K | EDGAR |