Elena Ridloff
CIK 1772518 · CFO · last filed 2026-05-11
Elena Ridloff is a CFO who has filed 33 SEC Form 4 insider transactions across 4 companies since 2019. The most recent filing, for KYMR, was dated May 11, 2026. Across all open-market trades the lifetime net is −$6.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.2M 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.
$2.18M
4
33
-$6.51M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| KYMR | Director | 3,000 | $86.20 | $258.6K | -$2.06M | 13 | 2026-05-11 |
| SION | CFO | 47,368 | $35.92 | $1.70M | -$1.97M | 5 | 2026-01-06 |
| Kronos Bio, Inc. (KRON) Delisted | Director | 0 | $0.88 | $0 | $50.0K | 6 | 2025-06-20 |
| ACAD | EVP and CFO | 10,553 | $21.09 | $222.6K | -$2.53M | 9 | 2021-04-30 |
Recent Filings
33 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-11 | KYMR | Mixed | — | -$167.4K | EDGAR |
| 2026-04-01 | KYMR | Mixed | — | -$854.5K | EDGAR |
| 2026-01-06 | SION | Grant (A) | — | $0 | EDGAR |
| 2025-09-03 | SION | Sell (S) | −9,584 | -$240.4K | EDGAR |
| 2025-08-28 | SION | Sell (S) | −23,416 | -$601.9K | EDGAR |
| 2025-08-21 | SION | Sell (S) | −52,000 | -$1.12M | EDGAR |
| 2025-06-26 | KYMR | Grant (A) | — | $0 | EDGAR |
| 2025-06-20 | Kronos Bio, Inc. (KRON) Delisted | Mixed | −25,296 | -$14.4K | EDGAR |
| 2025-06-11 | KYMR | Mixed | — | -$133.7K | EDGAR |
| 2025-06-03 | KYMR | Mixed | — | -$221.2K | EDGAR |