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EdgarHawk

Rubric Capital Management LP

10% Owner

10% Owner
3 filings analyzed · 2 companies · Latest 2025-08-12

Companies

Company Buys Sells Direction
HERON THERAPEUTICS, INC. /DE/ HRTX 1 0 Net buying
Talen Energy Corp TLN 0 24 Net selling

Activity

August 2025
high
Buy
2,387,225 shares
$3,580,838
Significance 6/10

Rubric Capital (10% owner) acquires 2.39M HRTX shares at $1.50; stock down 48.6% from 52-week high, now $1.31.

Rubric Capital Management LP, a substantial 10% shareholder, purchased 2,387,225 shares of Heron Therapeutics at $1.50 on 2025-08-08, increasing its stake by 8.9% to 29.10M shares. The transaction occurs as HRTX trades at $1.31, down 48.6% from its 52-week high of $2.55 and 39.9% over the past 30 days, signaling material near-term deterioration. The company remains unprofitable with a negative net income of $-2,381,000 in the latest quarter despite 13.6% annual revenue growth, suggesting operational headwinds despite topline expansion. The purchase represents a substantial $3.6M commitment by an insider with a cross-ticker track record averaging 1.8% positive returns on prior sells within 30 days—providing limited historical precedent for confidence in Rubric's tactical timing at this price level.

June 2025
2025-06-27 Talen Energy Corp TLN
high
Sell
388,530 shares
$114,091,990
Significance 7/10

Rubric Capital Management LP sold 388,530 shares ($114.1M) across 21 separate transactions at $293.65 blended average, reducing stake by 8.0%

Rubric Capital Management LP, a 10% owner, executed 21 separate sales totaling 388,530 shares for $114,091,989.56 over June 25–27, 2025. The stock has risen 21.8% over 30 days and 50.8% over 90 days, approaching its 52-week high of $297.88 (current price), yet the company reported negative net income of $-135,000,000.00 in the latest quarter and annual revenue declined 31.5%. The seller's cross-ticker track record shows a 100.00% well-timed rate on prior sells, and his prior TLN sale on 2024-12-13 was well-timed (30d return +8.5%, 90d return -4.5%), though that does not control this filing's forward-looking significance. The multi-transaction structure and significant dollar volume ($114.1M) against a backdrop of deteriorating fundamentals and steep recent appreciation warrant scrutiny of whether liquidity needs or valuation concern drove the staged liquidation.

December 2024
2024-12-16 Talen Energy Corp TLN
high
Sell
4,893,507 shares
$999,999,900
Significance 7/10

Rubric Capital (10% owner) sells 4,893,507 shares of TLN for $999,999,899.87; holdings cut 44.4% to 6,123,500 shares.

Rubric Capital Management LP, a 10% shareholder in Talen Energy, executed a large block sale of 4,893,507 shares at $204.35 on 2024-12-13, reducing its stake by 44.4% and realizing approximately $1,000.0M in proceeds. The sale occurred near but below the 52-week high of $223.54, at a -6.4% discount to that peak. Notable context: TLN trades at a P/E of 61.18 despite reporting full-year net income that was negative, while the latest quarter showed $168,000,000.00 in net income on $650,000,000.00 in revenue. The 44.4% reduction in a core stakeholder position of this magnitude warrants investor attention to the company's strategic outlook and the messaging behind such a substantial partial exit.

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