Insider · CIK 0001687509
Rubric Capital Management LP
Files at HRTX (HERON THERAPEUTICS, INC. /DE/), COLL (COLLEGIUM PHARMACEUTICAL, INC), TLN (Talen Energy Corp). First filing Dec 16, 2024, latest Aug 15, 2025.
In brief
Rubric Capital Management LP files SEC Form 4 as 10% owner at TLN (Talen Energy Corp), and also at HRTX (HERON THERAPEUTICS, INC. /DE/), COLL (COLLEGIUM PHARMACEUTICAL, INC). Since Dec 16, 2024, Rubric Capital Management LP has reported 1 open-market buy worth $3.6M and 3 open-market sells worth $1.1B, the latest filed on Aug 15, 2025.
A track record needs three past buys with six months of prices behind them; Rubric Capital Management LP has 0, so none is measured yet.
The newest scored trade: sold $946k of COLL on Aug 13, 2025, filed Aug 15, 2025, scored 51 (moderate).
Where the trades landed
Last year at the 3 companies this insider has traded most, with each buy and sell on the bar it happened.
TLN: Talen Energy Corp
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
COLL: COLLEGIUM PHARMACEUTICAL, INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
HRTX: HERON THERAPEUTICS, INC. /DE/
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 51Moderate | COLLEGIUM PHARMACEUTICAL, INC | $946k 25,000 shares | -1% | +53% from low-10% from high | |
| 43Moderate | HERON THERAPEUTICS, INC. /DE/ | $3.6M 2,387,225 shares | +9% | - | |
| 37Weak | TLNsell Talen Energy Corp | $114M 388,530 shares | -6% | +89% from low-2% from high | |
| 47Moderate | TLNsell Talen Energy Corp | $1000M 4,893,507 shares | -43% | - |
Transactions
Every row this insider has filed, 30 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 15, 2025 | HRTX HERON THERAPEUTICS, INC. /DE/ | CConversion Common Stock, par value $0.01 per share ("Common Stock")indirect: See footnotes | +946,100 | - | - | 30,046,828 | Oct 17, 2025 |
| Oct 15, 2025 | HRTX HERON THERAPEUTICS, INC. /DE/ | CConversion Series A Convertible Preferred Stock ("Preferred Shares")derivativeindirect: See footnotes | -94,610 | $0.00 | $0 | 0 | Oct 17, 2025 |
| Aug 13, 2025 | COLL COLLEGIUM PHARMACEUTICAL, INC | SOpen-market sale Common Stock, par value $0.001 per shareindirect: See footnotes | -25,000 | $37.85 | $946k | 3,132,743 | Aug 15, 2025 |
| Aug 8, 2025 | HRTX HERON THERAPEUTICS, INC. /DE/ | POpen-market purchase Common Stock, par value $0.01 per share ("Common Stock")indirect: See footnotes | +2,387,225 | $1.50 | $3.6M | 29,100,728 | Aug 12, 2025 |
| Aug 8, 2025 | HRTX HERON THERAPEUTICS, INC. /DE/ | POpen-market purchase Convertible Senior Unsecured Promissory Notes ("Notes")derivativeindirect: See footnotes | - | $33,250,000.00 | - | - | Aug 12, 2025 |
| Aug 8, 2025 | HRTX HERON THERAPEUTICS, INC. /DE/ | POpen-market purchase Series A Convertible Preferred Stock ("Preferred Shares")derivativeindirect: See footnotes | +94,610 | $15.00 | $1.4M | 94,610 | Aug 12, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stock, par value $0.001 per share ("Common Stock")indirect: See footnotes | -44,343 | $288.55 | $13M | 6,079,157 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -6,429 | $289.25 | $1.9M | 6,072,728 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -200 | $290.49 | $58k | 6,072,528 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -16,759 | $292.50 | $4.9M | 6,055,769 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -21,552 | $293.63 | $6.3M | 6,034,217 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -13,973 | $294.47 | $4.1M | 6,020,244 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -4,957 | $295.18 | $1.5M | 6,015,287 | Jun 27, 2025 |
| Jun 25, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -100 | $297.14 | $30k | 6,015,187 | Jun 27, 2025 |
| Jun 26, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -1,321 | $289.46 | $382k | 6,013,866 | Jun 27, 2025 |
| Jun 26, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -18,927 | $290.19 | $5.5M | 5,994,939 | Jun 27, 2025 |
| Jun 26, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -15,824 | $291.08 | $4.6M | 5,979,115 | Jun 27, 2025 |
| Jun 26, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -33,121 | $292.19 | $9.7M | 5,945,994 | Jun 27, 2025 |
| Jun 26, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -32,924 | $293.34 | $9.7M | 5,913,070 | Jun 27, 2025 |
| Jun 26, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -100 | $294.00 | $29k | 5,912,970 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -7,950 | $292.82 | $2.3M | 5,905,020 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -2,365 | $293.34 | $694k | 5,902,655 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -12,290 | $294.65 | $3.6M | 5,890,365 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -51,810 | $295.62 | $15M | 5,838,555 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -76,545 | $296.38 | $23M | 5,762,010 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -25,903 | $297.70 | $7.7M | 5,736,107 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | SOpen-market sale Common Stockindirect: See footnotes | -1,137 | $298.14 | $339k | 5,734,970 | Jun 27, 2025 |
| Jun 27, 2025 | TLN Talen Energy Corp | JOther Common Stockindirect: See footnotes | -1,281,839 | - | - | 4,453,131 | Jun 27, 2025 |
| Dec 13, 2024 | TLN Talen Energy Corp | SOpen-market sale Common Stock, par value $0.001 per share ("Common Stock")indirect: See footnote | -4,893,507 | $204.35 | $1000M | 6,475,107 | Dec 16, 2024 |
| Dec 13, 2024 | TLN Talen Energy Corp | JOther Common Stockindirect: See footnote | -351,607 | - | - | 6,123,500 | Dec 16, 2024 |
Questions about Rubric Capital Management LP
Answered from the filings on this page, as of the latest one.
Is Rubric Capital Management LP buying or selling?
Not in the last 12 months. Rubric Capital Management LP's latest open-market trade on SEC Form 4 was sold $946k of COLL on Aug 13, 2025.
How did Rubric Capital Management LP's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Rubric Capital Management LP has 0.
Where does Rubric Capital Management LP file Form 4?
Rubric Capital Management LP has filed Form 4 at TLN (Talen Energy Corp); HRTX (HERON THERAPEUTICS, INC. /DE/); COLL (COLLEGIUM PHARMACEUTICAL, INC). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.