Elena Ridloff

CIK 1772518 · CFO · last filed 2026-05-11

"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.

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Disclosed Exposure

$2.18M

Companies

4

Total Filings

33

Lifetime Open-Market Net

-$6.51M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
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 · Page 3 of 4

33 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2021-06-23 Kronos Bio, Inc. (KRON) Delisted Grant (A) $0 EDGAR
2021-06-17 KYMR Grant (A) $0 EDGAR
2021-04-30 ACAD Mixed +2,213 -$21.0K EDGAR
2021-03-16 KYMR Grant (A) $0 EDGAR
2021-02-25 ACAD Grant (A) $0 EDGAR
2021-02-08 ACAD Mixed +4,439 -$103.8K EDGAR
2021-01-08 ACAD Mixed +1,706 -$54.2K EDGAR
2020-10-16 Kronos Bio, Inc. (KRON) Delisted Buy (P) +2,630 $50.0K EDGAR
2020-05-01 ACAD Mixed +2,195 -$307.8K EDGAR
2020-01-08 ACAD Grant (A) $0 EDGAR
Showing 2130 of 33
Page 3 of 4
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.