George L Sing insider trades: Regeneron Pharmaceuticals (REGN) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where George reports to the SEC
Open-market buys and sales
58 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 2, 2026 | REGN | ↓ Sell | 21,129 | $964.38 | $20.4M | Direct | Nov 4, 2026 (2d) |
| Feb 26, 2024 | REGN | ↓ Sell | 1,000 | $992.50 | $993K | Direct | Feb 28, 2024 (2d) |
| Feb 23, 2024 | REGN | ↓ Sell | 3,500 | $967.86 | $3.4M | Direct | Feb 26, 2024 (3d) |
| Feb 9, 2024 | REGN | ↓ Sell | 1,000 | $950.00 | $950K | Direct | Feb 12, 2024 (3d) |
| Feb 28, 2022 | REGN | ↓ Sell | 4,000 | $618.25 | $2.5M | Direct | Mar 1, 2022 (1d) |
| Nov 22, 2021 | REGN | ↓ Sell | 3,000 | $656.67 | $2.0M | Direct | Nov 23, 2021 (1d) |
| Nov 18, 2021 | REGN | ↓ Sell | 10,000 | $653.76 | $6.5M | Direct | Nov 18, 2021 (0d) |
| Nov 16, 2021 | REGN | ↓ Sell | 750 | $650.00 | $488K | by Trust for Son | Nov 18, 2021 (2d) |
| Aug 30, 2021 | REGN | ↓ Sell | 1,000 | $672.50 | $673K | Direct | Aug 30, 2021 (0d) |
| Aug 30, 2021 | REGN | ↓ Sell | 400 | $670.75 | $268K | by Spouse | Aug 30, 2021 (0d) |
| Aug 30, 2021 | REGN | ↓ Sell | 300 | $672.00 | $202K | by Trust for Son | Aug 30, 2021 (0d) |
| Aug 16, 2021 | REGN | ↓ Sell | 1,000 | $627.50 | $628K | by Trust for Son | Aug 17, 2021 (1d) |
| Aug 16, 2021 | REGN | ↓ Sell | 705 | $630.00 | $444K | Direct | Aug 17, 2021 (1d) |
| Aug 13, 2021 | REGN | ↓ Sell | 3,500 | $617.71 | $2.2M | Direct | Aug 13, 2021 (0d) |
| Aug 11, 2021 | REGN | ↓ Sell | 300 | $620.00 | $186K | by Trust for Son | Aug 13, 2021 (2d) |
| Aug 10, 2021 | REGN | ↓ Sell | 6,600 | $612.35 | $4.0M | Direct | Aug 10, 2021 (0d) |
| Aug 6, 2021 | REGN | ↓ Sell | 350 | $612.42 | $214K | by Trust for Son | Aug 10, 2021 (4d) |
| Aug 31, 2020 | REGN | ↓ Sell | 10,000 | $612.06 | $6.1M | Direct | Aug 31, 2020 (0d) |
| Aug 25, 2020 | REGN | ↓ Sell | 32,750 | $607.28 | $19.9M | Direct | Aug 27, 2020 (2d) |
| Aug 25, 2020 | REGN | ↓ Sell | 1,000 | $612.00 | $612K | by Trust for Son | Aug 27, 2020 (2d) |
| Aug 24, 2020 | REGN | ↓ Sell | 61,000 | $605.40 | $36.9M | Direct | Aug 24, 2020 (0d) |
| Jul 7, 2020 | REGN | ↓ Sell | 7,500 | $650.00 | $4.9M | Direct | Jul 8, 2020 (1d) |
| Jul 7, 2020 | REGN | ↓ Sell | 1,500 | $650.00 | $975K | by Trust for Son | Jul 8, 2020 (1d) |
| Jul 7, 2020 | REGN | ↓ Sell | 1,000 | $650.47 | $650K | by Spouse/Cust Son | Jul 8, 2020 (1d) |
| Jul 7, 2020 | REGN | ↓ Sell | 500 | $650.00 | $325K | by Spouse | Jul 8, 2020 (1d) |
| Jun 29, 2020 | REGN | ↓ Sell | 1,500 | $609.37 | $914K | by Trust for Son | Jun 29, 2020 (0d) |
| Jun 29, 2020 | REGN | ↓ Sell | 1,000 | $607.98 | $608K | by Spouse/Cust Son | Jun 29, 2020 (0d) |
| Jun 29, 2020 | REGN | ↓ Sell | 500 | $609.37 | $305K | by Spouse | Jun 29, 2020 (0d) |
| May 29, 2020 | REGN | ↓ Sell | 1,000 | $589.01 | $589K | by Spouse/Cust Son | Jun 1, 2020 (3d) |
| May 29, 2020 | REGN | ↓ Sell | 1,000 | $586.50 | $587K | by Trust for Son | Jun 1, 2020 (3d) |
| May 13, 2020 | REGN | ↓ Sell | 5,000 | $580.00 | $2.9M | Direct | May 13, 2020 (0d) |
| May 11, 2020 | REGN | ↓ Sell | 300 | $575.00 | $173K | by Spouse/Cust Son | May 13, 2020 (2d) |
| May 11, 2020 | REGN | ↓ Sell | 300 | $575.00 | $173K | by Trust for Son | May 13, 2020 (2d) |
| May 11, 2020 | REGN | ↓ Sell | 250 | $575.00 | $144K | by Spouse | May 13, 2020 (2d) |
| Feb 26, 2020 | REGN | ↓ Sell | 2,500 | $460.00 | $1.1M | Direct | Feb 28, 2020 (2d) |
| Feb 26, 2020 | REGN | ↓ Sell | 1,000 | $452.50 | $453K | by Trust for Son | Feb 28, 2020 (2d) |
| Feb 26, 2020 | REGN | ↓ Sell | 800 | $453.50 | $363K | by Spouse/Cust Son | Feb 28, 2020 (2d) |
| Feb 26, 2020 | REGN | ↓ Sell | 600 | $452.50 | $272K | by Spouse | Feb 28, 2020 (2d) |
| Jan 2, 2020 | REGN | ↓ Sell | 15,000 | $371.98 | $5.6M | Direct | Jan 6, 2020 (4d) |
| May 10, 2018 | REGN | ↓ Sell | 20,000 | $286.15 | $5.7M | Direct | May 11, 2018 (1d) |
| Nov 18, 2015 | REGN | ↓ Sell | 3,000 | $580.00 | $1.7M | Direct | Nov 20, 2015 (2d) |
| Nov 18, 2015 | REGN | ↓ Sell | 500 | $580.00 | $290K | by Spouse/Cust Son | Nov 20, 2015 (2d) |
| May 27, 2015 | REGN | ↓ Sell | 5,000 | $515.00 | $2.6M | Direct | May 29, 2015 (2d) |
| Feb 20, 2015 | REGN | ↓ Sell | 15,000 | $423.12 | $6.3M | Direct | Feb 24, 2015 (4d) |
| Feb 21, 2014 | REGN | ↓ Sell | 15,000 | $339.00 | $5.1M | Direct | Feb 24, 2014 (3d) |
| Feb 14, 2014 | REGN | ↓ Sell | 15,000 | $324.00 | $4.9M | Direct | Feb 19, 2014 (5d) |
| Nov 26, 2013 | REGN | ↓ Sell | 10,000 | $295.00 | $3.0M | Direct | Nov 27, 2013 (1d) |
| May 10, 2013 | REGN | ↓ Sell | 5,000 | $270.00 | $1.4M | Direct | May 10, 2013 (0d) |
| Nov 29, 2012 | REGN | ↓ Sell | 5,000 | $185.00 | $925K | Direct | Nov 29, 2012 (0d) |
| Nov 16, 2012 | REGN | ↓ Sell | 5,000 | $152.00 | $760K | Direct | Nov 20, 2012 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other REGN insiders
Open-market trades in the last 12 months
About George L Sing's insider trades
George L Sing is a director at Regeneron Pharmaceuticals (REGN). Since Nov 13, 2009, George has reported 4 open-market purchases worth $448K and 54 sales worth $167.3M on SEC Form 4. In the last 12 months: 1 sale ($20.4M).
Their filings also include option exercises (28 filings), grants and awards (21 filings), shares withheld for taxes (3 filings), gifts (2 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 REGN insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.