Eric Blasius Risser
CIK 1587774 · President and CEO · last filed 2026-02-17
Eric Blasius Risser is a President and CEO who has filed 56 SEC Form 4 insider transactions across 1 company since 2013. The most recent filing, for MGNX, was dated Feb 17, 2026. Across all open-market trades the lifetime net is −$3.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $331.1K 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.
$331.1K
1
56
-$3.25M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGNX | President and CEO | 83,602 | $3.96 | $331.1K | -$3.25M | 56 | 2026-02-17 |
Recent Filings
56 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-17 | MGNX | Mixed | +10,232 | -$11.0K | EDGAR |
| 2026-02-10 | MGNX | Mixed | +10,948 | -$12.5K | EDGAR |
| 2025-08-15 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2025-02-19 | MGNX | Mixed | +10,232 | -$16.5K | EDGAR |
| 2025-02-11 | MGNX | Mixed | +6,857 | -$11.2K | EDGAR |
| 2024-03-06 | MGNX | Mixed | −26,159 | -$661.3K | EDGAR |
| 2024-02-20 | MGNX | Mixed | +10,791 | -$102.3K | EDGAR |
| 2024-02-12 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2023-02-17 | MGNX | Grant (A) | — | $0 | EDGAR |
| 2022-10-31 | MGNX | Exer (M) | +8,500 | $12.8K | EDGAR |