Rosen David Efraim
- SEC CIK
- 0001898677
No open-market purchases or sales filed in the past year.
Current role at each company
- HRTX Heron Therapeutics, Inc.10% Owneras of Oct 17, 2025
- COLL Collegium Pharmaceutical, Inc10% Owneras of Aug 15, 2025
- TLN Talen Energy Corp10% Owneras of Jun 27, 2025
- MREO Mereo BioPharma Group plc10% Owneras of Jun 17, 2024
- TXMD TherapeuticsMD, Inc.10% Owneras of Nov 17, 2023
Show 1 more company
- Radius Health, Inc.10% Owneras of Aug 12, 2022
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- –
- 0 filings
- Net
- –
- Bought minus sold
- Companies
- 0
- With open-market trades
Trades
Every Form 4 that lists Rosen David Efraim as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
COLL Collegium Pharmaceutical, Inc
10% Owner1 trade
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 15, 2025 (view filing)4:12 PM ET | Aug 13 | 2 days | Rubric Capital Management LP and 1 other10% Owner | SSaleCommon Stock, par value $0.001 per share | −25.0K | $37.85 | −$946.3K | −0.8%3.13M after |
HRTX Heron Therapeutics, Inc.
10% Owner3 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 12, 2025 (view filing)6:00 PM ET | Aug 8 | 4 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.01 per share ("Common Stock") | +2.39M | $1.50 | +$3.58M | +8.9%29.1M after | |
| Aug 12, 2025 (view filing)6:00 PM ET | Aug 8 | 4 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseConvertible Senior Unsecured Promissory Notes ("Notes") | – | – | – | – | DerivativePrice outlier |
| Aug 12, 2025 (view filing)6:00 PM ET | Aug 8 | 4 days | Rubric Capital Management LP and 1 other10% Owner | PPurchase | +946.1K | $1.50 | +$1.42M | –94.6K after | Derivative |
TLN Talen Energy Corp
10% Owner3 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 27, 2025 (view filing)6:45 PM ET | Jun 25 | 2 days | Rubric Capital Management LP and 1 other10% Owner | SSaleCommon Stock, par value $0.001 per share ("Common Stock") | −44.3K | $288.55 | −$12.8M | −0.7%6.08M after | |
| Jun 27, 2025 (view filing)6:45 PM ET | Jun 25-27 | 2 days | Rubric Capital Management LP and 1 other10% Owner | SSale | −344.2K | $294.31 | −$101.3M | −5.7%5.73M after | 20 lots |
| Dec 16, 2024 (view filing)4:00 PM ET | Dec 13 | 3 days | Rubric Capital Management LP and 1 other10% Owner | SSaleCommon Stock, par value $0.001 per share ("Common Stock") | −4.89M | $204.35 | −$1.00B | −43.0%6.48M after |
TXMD TherapeuticsMD, Inc.
10% Owner9 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Dec 12, 2022 (view filing)11:14 AM ET | Dec 9 | 3 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.001 per share ("Common Stock") | +14.8K | $6.09 | +$90.3K | +0.9%1.76M after | |
| Dec 9, 2022 (view filing)10:58 AM ET | Dec 7 | 2 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.001 per share ("Common Stock") | +20.1K | $5.66 | +$113.9K | +1.2%1.74M after | |
| Dec 9, 2022 (view filing)10:58 AM ET | Dec 8 | 1 day | Rubric Capital Management LP and 1 other10% Owner | PPurchase | +300 | $5.83 | +$1.75K | 0.0%1.74M after | |
| Oct 31, 2022 (view filing)12:12 PM ET | Oct 28 | 3 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseSeries A Preferred Stock, par value $0.001 per share | +7.00K | $1,000.00 | +$7.00M | +31.8%29.0K after | |
| Oct 3, 2022 (view filing)5:40 PM ET | Sep 30 | 3 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseSeries A Preferred Stock, par value $0.001 per share | +7.00K | $1,000.00 | +$7.00M | +46.7%22.0K after | |
| Aug 1, 2022 (view filing)6:11 PM ET | Jul 29 | 3 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.001 per share ("Common Stock") | +565.0K | $4.72 | +$2.67M | +48.8%1.72M after | |
| Aug 1, 2022 (view filing)6:11 PM ET | Jul 29 | 3 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseSeries A Preferred Stock, par value $0.001 per share | +15.0K | $822.21 | +$12.3M | New position15.0K after | |
| Jul 19, 2022 (view filing)11:28 AM ET | Jul 15 | 4 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.001 per share ("Common Stock") | +64.9K | $5.56 | +$360.8K | +6.0%1.14M after | |
| Jul 19, 2022 (view filing)11:28 AM ET | Jul 18 | 1 day | Rubric Capital Management LP and 1 other10% Owner | PPurchase | +17.7K | $6.03 | +$106.7K | +1.6%1.16M after |
Radius Health, Inc.
10% Owner7 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 12, 2022 (view filing)12:06 PM ET | Aug 11 | 1 day | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.0001 per share ("Common Stock") | +1.68M | $10.07 | +$16.9M | +24.1%8.64M after | |
| Aug 11, 2022 (view filing)10:43 AM ET | Aug 10 | 1 day | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.0001 per share ("Common Stock") | +4.01K | $10.07 | +$40.4K | +0.1%6.96M after | |
| Dec 16, 2021 (view filing)5:32 PM ET | Dec 16 | Same day | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.0001 per share ("Common Stock") | +146.7K | $7.07 | +$1.04M | +2.2%6.96M after | |
| Dec 15, 2021 (view filing)5:22 PM ET | Dec 13 | 2 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.0001 per share ("Common Stock") | +187.4K | $7.08 | +$1.33M | +3.0%6.54M after | |
| Dec 15, 2021 (view filing)5:22 PM ET | Dec 14-15 | 1 day | Rubric Capital Management LP and 1 other10% Owner | PPurchase | +274.8K | $6.78 | +$1.86M | +4.2%6.81M after | 2 lots |
| Dec 10, 2021 (view filing)6:01 PM ET | Dec 8 | 2 days | Rubric Capital Management LP and 1 other10% Owner | PPurchaseCommon Stock, par value $0.0001 per share ("Common Stock") | +560.7K | $8.02 | +$4.50M | +11.8%5.32M after | |
| Dec 10, 2021 (view filing)6:01 PM ET | Dec 9-10 | 1 day | Rubric Capital Management LP and 1 other10% Owner | PPurchase | +1.03M | $7.28 | +$7.52M | +19.4%6.35M after | 2 lots |