RONALD C FOSTER
CIK 1222896 · CFO & VP OF FINANCE · last filed 2026-05-08
RONALD C FOSTER is a CFO & VP OF FINANCE who has filed 101 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for AEISE, was dated May 8, 2026. Across all open-market trades the lifetime net is −$30.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $571.9M 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.
$571.95M
4
101
-$30.21M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| AEISE | Director | 25,088 | — | — | -$1.12M | 24 | 2026-05-08 |
| MRAM | Director | 32,586 | $24.41 | $795.4K | $0 | 4 | 2020-05-20 |
| MU | CFO & VP OF FINANCE | 581,442 | $981.61 | $570.75M | -$28.39M | 66 | 2015-02-19 |
| FORM | Sr. VP & CFO | 2,883 | $139.21 | $401.3K | -$702.9K | 7 | 2007-06-18 |
Recent Filings
101 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-08 | AEISE | Grant (A) | — | $0 | EDGAR |
| 2026-05-05 | AEISE | Exer (M) | +2,313 | $0 | EDGAR |
| 2025-05-06 | AEISE | Mixed | +2,093 | $0 | EDGAR |
| 2024-05-07 | AEISE | Mixed | +2,257 | $0 | EDGAR |
| 2023-12-14 | AEISE | Sell (S) | −618 | -$64.9K | EDGAR |
| 2023-12-04 | AEISE | Sell (S) | −1,000 | -$95.0K | EDGAR |
| 2023-11-16 | AEISE | Sell (S) | −1,000 | -$95.0K | EDGAR |
| 2023-10-04 | AEISE | Sell (S) | −1,000 | -$103.3K | EDGAR |
| 2023-09-05 | AEISE | Sell (S) | −1,000 | -$118.5K | EDGAR |
| 2023-08-02 | AEISE | Sell (S) | −1,000 | -$123.5K | EDGAR |