Katie Seitz Evans
CIK 1700262 · President, Operations · last filed 2026-05-19
Katie Seitz Evans is a President, Operations who has filed 61 SEC Form 4 insider transactions across 3 companies since 2017. The most recent filing shows the insider had shares withheld for taxes covering $143.6K of MGNI on May 19, 2026. Across all open-market trades the lifetime net is −$14.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.1M 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.
$8.07M
3
61
-$14.21M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGNI | President, Operations | 496,840 | $16.25 | $8.07M | -$14.13M | 47 | 2026-05-19 |
| Telaria, Inc. (TLRA) Delisted | Chief Operating Officer | 243,198 | — | — | -$63.8K | 11 | 2020-02-19 |
| Telaria, Inc. (TRMR) Delisted | Chief Operating Officer | 43,079 | $5.02 | $216.3K | -$15.9K | 2 | 2017-08-30 |
Recent Filings
61 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-19 | MGNI | Tax (F) | −11,204 | -$143.6K | EDGAR |
| 2026-02-18 | MGNI | Tax (F) | −27,428 | -$320.9K | EDGAR |
| 2026-01-12 | MGNI | Mixed | +24,464 | -$433.9K | EDGAR |
| 2026-01-05 | MGNI | Grant (A) | +127,273 | $0 | EDGAR |
| 2025-11-18 | MGNI | Tax (F) | −10,354 | -$146.5K | EDGAR |
| 2025-08-29 | MGNI | Sell (S) | −21,509 | -$548.9K | EDGAR |
| 2025-08-26 | MGNI | Sell (S) | −8,345 | -$217.0K | EDGAR |
| 2025-08-20 | MGNI | Sell (S) | −10,487 | -$250.1K | EDGAR |
| 2025-07-02 | MGNI | Mixed | −8,358 | -$512.9K | EDGAR |
| 2025-06-18 | MGNI | Mixed | — | -$297.8K | EDGAR |