Rubric Capital Management LP — SEC Form 4 filings
SEC reporting owner CIK 1687509. 6 Form 4 filings on record with FilingPulse; latest filed 2025-10-17.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-06-17 to 2025-10-17. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 2,387,225 shares, $3,580,838 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 23 legs across 3 filings — 5,307,037 shares, $1,115,038,139 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 7.
- Largest priced transaction: sale of 4,893,507 shares @ $204.35 ($999,999,900) in Talen Energy Corp, filed 2024-12-16.
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 |
|---|---|---|---|---|---|
| Talen Energy Corp (TLN) | 10% owner | 2 | — | 22 legs · 5,282,037 sh · $1,114,091,889 | 2 |
| HERON THERAPEUTICS, INC. /DE/ (HRTX) | 10% owner | 2 | 1 leg · 2,387,225 sh · $3,580,838 | — | 4 |
| COLLEGIUM PHARMACEUTICAL, INC (COLL) | 10% owner | 1 | — | 1 leg · 25,000 sh · $946,250 | — |
| Mereo BioPharma Group plc (MREO) | 10% owner | 1 | — | — | 1 |
Form 4 filings — Rubric Capital Management LP
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2025-10-17 | 4 | HERON THERAPEUTICS, INC. /DE/ (HRTX) jointly with Rosen David Efraim | Conversion (C): 946,100 · Conversion (C): 94,610 (derivative) @ $0 | EDGAR |
| 2025-08-15 | 4 | COLLEGIUM PHARMACEUTICAL, INC (COLL) jointly with Rosen David Efraim | Sale (S): 25,000 @ $37.85 | EDGAR |
| 2025-08-12 | 4 | HERON THERAPEUTICS, INC. /DE/ (HRTX) jointly with Rosen David Efraim | Purchase (P): 2,387,225 @ $1.50 · Purchase (P) @ $33,250,000 · Purchase (P): 94,610 (derivative) @ $15 | EDGAR |
| 2025-06-27 | 4 | Talen Energy Corp (TLN) jointly with Rosen David Efraim | Sale (S): 44,343 @ $288.55 · Sale (S): 6,429 @ $289.25 · Sale (S): 200 @ $290.49 · Sale (S): 16,759 @ $292.50 · Sale (S): 21,552 @ $293.63 · Sale (S): 13,973 @ $294.47 · +16 more | EDGAR |
| 2024-12-16 | 4 | Talen Energy Corp (TLN) jointly with Rosen David Efraim | Sale (S): 4,893,507 @ $204.35 · Other (J): 351,607 | EDGAR |
| 2024-06-17 | 4 | Mereo BioPharma Group plc (MREO) jointly with Rosen David Efraim | Grant/award (A): 1,754,350 (derivative) @ $3.99 | 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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