Franklin M Berger insider trades: Retension Pharmaceuticals (RTSN) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Franklin reports to the SEC
and 9 more companies
Open-market buys and sales
39 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 13, 2026 | RTSN | ↑ Buy | 10,000 | $12.00 | $120K | By FMB Research | Oct 13, 2026 (0d) |
| Jan 16, 2025 | AVIR | ↑ Buy | 25,000 | $3.26 | $81K | Direct | Jan 17, 2025 (1d) |
| Dec 10, 2024 | AVIR | ↓ Sell | 359,606 | $2.85 | $1.0M | Direct | Dec 12, 2024 (2d) |
| Nov 21, 2023 | EPIX | ↑ Buy | 23,259 | $5.73 | $133K | Direct | Nov 22, 2023 (1d) |
| Nov 3, 2023 | EPIX | ↑ Buy | 76,471 | $5.49 | $420K | Direct | Nov 16, 2023 (13d) |
| Dec 21, 2022 | EPIX | ↓ Sell | 272,840 | $2.67 | $729K | Direct | Jan 5, 2023 (15d) |
| Nov 22, 2022 | RAIN | ↑ Buy | 122,000 | $8.10 | $988K | Direct | Nov 23, 2022 (1d) |
| Nov 14, 2022 | AVIR | ↓ Sell | 41,666 | $5.15 | $215K | Direct | Nov 15, 2022 (1d) |
| Nov 8, 2022 | RAIN | ↑ Buy | 42,881 | $5.83 | $250K | Direct | Nov 14, 2022 (6d) |
| Mar 21, 2022 | KZR | ↑ Buy | 80,000 | $16.25 | $1.3M | Direct | Mar 22, 2022 (1d) |
| Sep 21, 2021 | RAIN | ↑ Buy | 3,786 | $14.30 | $54K | Direct | Sep 23, 2021 (2d) |
| Apr 23, 2021 | RAIN | ↑ Buy | 125,000 | $16.95 | $2.1M | Direct | Apr 27, 2021 (4d) |
| Feb 22, 2021 | EPIX | ↑ Buy | 57,000 | $27.00 | $1.5M | Direct | Mar 4, 2021 (10d) |
| Nov 3, 2020 | AVIR | ↑ Buy | 41,666 | $24.00 | $1000K | Direct | Nov 3, 2020 (0d) |
| Jun 11, 2020 | KZR | ↑ Buy | 100,000 | $5.50 | $550K | Direct | Jun 11, 2020 (0d) |
| Feb 4, 2020 | KZR | ↑ Buy | 120,846 | $2.60 | $314K | Direct | Feb 5, 2020 (1d) |
| Dec 3, 2019 | FPRX | ↓ Sell | 79,980 | $3.97 | $317K | Direct | Dec 4, 2019 (1d) |
| Oct 26, 2018 | PTI | ↑ Buy | 40,000 | $6.75 | $270K | By: FMB Research | Oct 26, 2018 (0d) |
| Jun 25, 2018 | KZR | ↑ Buy | 50,000 | $15.00 | $750K | Direct | Jun 27, 2018 (2d) |
| Dec 18, 2017 | PTI | ↑ Buy | 60,000 | $5.00 | $300K | Direct | Dec 19, 2017 (1d) |
| Oct 30, 2017 | IMDZ | ↑ Buy | 25,000 | $4.58 | $114K | Direct | Nov 1, 2017 (2d) |
| Oct 25, 2017 | IMDZ | ↑ Buy | 25,000 | $4.26 | $107K | Direct | Oct 26, 2017 (1d) |
| Dec 16, 2016 | IMDZ | ↓ Sell | 50,000 | $6.55 | $327K | Direct | Dec 20, 2016 (4d) |
| Dec 16, 2016 | PTI | ↑ Buy | 40,000 | $11.17 | $447K | Direct | Dec 19, 2016 (3d) |
| Sep 14, 2016 | PTI | ↑ Buy | 69,230 | $13.00 | $900K | Direct | Sep 15, 2016 (1d) |
| Apr 22, 2016 | FPRX | ↑ Buy | 5,000 | $49.47 | $247K | Direct | Apr 26, 2016 (4d) |
| Apr 19, 2016 | FPRX | ↑ Buy | 6,090 | $47.06 | $287K | Direct | Apr 21, 2016 (2d) |
| Feb 17, 2016 | PTI | ↑ Buy | 25,000 | $8.00 | $200K | Direct | Feb 17, 2016 (0d) |
| Apr 21, 2015 | IMDZ | ↑ Buy | 25,000 | $26.50 | $663K | Direct | Apr 21, 2015 (0d) |
| Jan 28, 2015 | FPRX | ↑ Buy | 25,000 | $27.03 | $676K | Direct | Jan 29, 2015 (1d) |
| Jan 15, 2015 | FPRX | ↑ Buy | 10,049 | $26.17 | $263K | Direct | Jan 16, 2015 (1d) |
| Nov 28, 2014 | FPRX | ↑ Buy | 1,951 | $21.04 | $41K | Direct | Dec 2, 2014 (4d) |
| Jul 29, 2014 | IMDZ | ↑ Buy | 50,000 | $12.00 | $600K | Direct | Jul 31, 2014 (2d) |
| Aug 20, 2013 | BTX | ↑ Buy | 500 | $3.71 | $2K | Direct | Aug 22, 2013 (2d) |
| Jun 22, 2011 | SGEN | ↑ Buy | 7,000 | $20.04 | $140K | Direct | Jun 23, 2011 (1d) |
| May 13, 2010 | SGEN | ↑ Buy | 5,000 | $13.37 | $67K | Direct | May 17, 2010 (4d) |
| Mar 30, 2010 | SGEN | ↑ Buy | 11,500 | $12.05 | $139K | Direct | Mar 31, 2010 (1d) |
| Mar 12, 2010 | SGEN | ↑ Buy | 13,000 | $11.90 | $155K | Direct | Mar 12, 2010 (0d) |
| Jan 22, 2008 | SGEN | ↑ Buy | 528 | $9.12 | $5K | Direct | Jan 24, 2008 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other RTSN insiders
Open-market trades in the last 12 months
About Franklin M Berger's insider trades
Franklin M Berger is a director at Retension Pharmaceuticals (RTSN). Since Jan 22, 2008, Franklin has reported 34 open-market purchases worth $15.2M and 5 sales worth $2.6M on SEC Form 4. In the last 12 months: 1 buy ($120K).
Their filings also include grants and awards (63 filings), option exercises (18 filings), conversions (6 filings), shares returned to the company (6 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every RTSN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.