Ridloff Elena — SEC Form 4 filings
SEC reporting owner CIK 1772518. 16 Form 4 filings on record with FilingPulse; latest filed 2026-09-18.
Transaction summary — filings shown
Covers all 16 filings on record, filed 2024-06-20 to 2026-09-18. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 14 legs across 7 filings — 116,500 shares, $4,030,495 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 29.
- Largest priced transaction: sale of 34,500 shares @ $21.08 ($727,260) in Sionna Therapeutics, Inc., filed 2025-08-21.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Kymera Therapeutics, Inc. (KYMR) | Director | 7 | — | 7 legs · 31,500 sh · $2,063,860 | 13 |
| Sionna Therapeutics, Inc. (SION) | CFO and CBO | 6 | — | 7 legs · 85,000 sh · $1,966,634 | 6 |
| Kronos Bio, Inc. (KRON) | Director | 2 | — | — | 9 |
| IMMUNIC, INC. (IMUX) | Director | 1 | — | — | 1 |
Form 4 filings — Ridloff Elena
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-18 | 4 | Sionna Therapeutics, Inc. (SION) | Grant/award (A): 47,269 @ $0 · Grant/award (A): 47,268 @ $0 · Grant/award (A): 165,440 (derivative) @ $0 · Disposition to issuer (D): 165,440 (derivative) @ $0 | EDGAR |
| 2026-08-10 | 4 | IMMUNIC, INC. (IMUX) | Grant/award (A): 50,740 (derivative) @ $0 | EDGAR |
| 2026-06-25 | 4 | Kymera Therapeutics, Inc. (KYMR) | Grant/award (A): 6,068 (derivative) @ $0 | EDGAR |
| 2026-05-11 | 4 | Kymera Therapeutics, Inc. (KYMR) | Option exercise (M): 3,000 @ $31.20 · Sale (S): 3,000 @ $87 · Option exercise (M): 3,000 (derivative) @ $0 | EDGAR |
| 2026-04-01 | 4 | Kymera Therapeutics, Inc. (KYMR) | Option exercise (M): 7,400 @ $14.18 · Sale (S): 7,400 @ $85.37 · Option exercise (M): 4,600 @ $14.18 · Sale (S): 3,400 @ $85.19 · Sale (S): 1,200 @ $86.05 · Option exercise (M): 7,400 (derivative) @ $0 · +1 more | EDGAR |
| 2026-01-06 | 4 | Sionna Therapeutics, Inc. (SION) | Grant/award (A): 165,440 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | Sionna Therapeutics, Inc. (SION) | Sale (S): 748 @ $25.18 · Sale (S): 8,836 @ $25.08 | EDGAR |
| 2025-08-28 | 4 | Sionna Therapeutics, Inc. (SION) | Sale (S): 3,700 @ $25.13 · Sale (S): 3,618 @ $25.10 · Sale (S): 16,098 @ $25.97 | EDGAR |
| 2025-08-21 | 4 | Sionna Therapeutics, Inc. (SION) | Sale (S): 34,500 @ $21.08 · Sale (S): 17,500 @ $22.69 | EDGAR |
| 2025-06-26 | 4 | Kymera Therapeutics, Inc. (KYMR) | Grant/award (A): 16,000 (derivative) @ $0 | EDGAR |
| 2025-06-20 | 4 | Kronos Bio, Inc. (KRON) | Code (U): 25,296 @ $0.57 · Disposition to issuer (D): 25,879 (derivative) @ $0 · Disposition to issuer (D): 26,871 (derivative) @ $0 · Disposition to issuer (D): 15,450 (derivative) @ $0 · Disposition to issuer (D): 34,000 (derivative) @ $0 · Disposition to issuer (D): 17,000 (derivative) @ $0 · +1 more | EDGAR |
| 2025-06-11 | 4 | Kymera Therapeutics, Inc. (KYMR) | Option exercise (M): 4,500 @ $20.29 · Sale (S): 4,500 @ $50 · Option exercise (M): 4,500 (derivative) @ $0 | EDGAR |
| 2025-06-03 | 4 | Kymera Therapeutics, Inc. (KYMR) | Option exercise (M): 12,000 @ $27.67 · Sale (S): 7,200 @ $45.50 · Sale (S): 4,800 @ $47 · Option exercise (M): 12,000 (derivative) @ $0 | EDGAR |
| 2025-02-10 | 4 | Sionna Therapeutics, Inc. (SION) | Grant/award (A): 157,820 (derivative) @ $0 | EDGAR |
| 2024-06-26 | 4 | Kronos Bio, Inc. (KRON) | Grant/award (A): 11,333 @ $0 · Grant/award (A): 17,000 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Kymera Therapeutics, Inc. (KYMR) | Grant/award (A): 16,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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