George L Sing
CIK 1225471 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 6, 2026 · Latest: Jan. 6, 2026
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Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 40 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
40 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 18, 2021 | REGN | S | 4,000 | $650.00 | $2,600,000 | 32,858 Direct | -10.85% | Disposed | 28.5% (price as of 2026-08-20) |
| Nov. 16, 2021 | REGN | S | 2,000 | $650.00 | $1,300,000 | 40,858 Direct | -4.67% | Disposed | 28.5% (price as of 2026-08-20) |
| Nov. 16, 2021 | REGN | S | 2,000 | $658.79 | $1,317,580 | 38,858 Direct | -4.90% | Disposed | 26.7% (price as of 2026-08-20) |
| Nov. 16, 2021 | REGN | S | 2,000 | $660.00 | $1,320,000 | 36,858 Direct | -5.15% | Disposed | 26.5% (price as of 2026-08-20) |
| Nov. 16, 2021 | REGN | S | 750 | $650.00 | $487,500 | 1,000 Indirect | -42.86% | Disposed | 28.5% (price as of 2026-08-20) |
| Aug. 30, 2021 | REGN | S | 500 | $670.00 | $335,000 | 43,358 Direct | -1.14% | Disposed | 24.6% (price as of 2026-08-20) |
| Aug. 30, 2021 | REGN | S | 500 | $675.00 | $337,500 | 42,858 Direct | -1.15% | Disposed | 23.7% (price as of 2026-08-20) |
| Aug. 30, 2021 | REGN | S | 250 | $670.00 | $167,500 | 750 Indirect | -25.00% | Disposed | 24.6% (price as of 2026-08-20) |
| Aug. 30, 2021 | REGN | S | 300 | $672.00 | $201,600 | 1,750 Indirect | -14.63% | Disposed | 24.3% (price as of 2026-08-20) |
| Aug. 26, 2021 | REGN | S | 150 | $672.00 | $100,800 | 1,000 Indirect | -13.04% | Disposed | 24.3% (price as of 2026-08-20) |
| Aug. 16, 2021 | REGN | S | 705 | $630.00 | $444,150 | 43,858 Direct | -1.58% | Disposed | 32.5% (price as of 2026-08-20) |
| Aug. 16, 2021 | REGN | S | 1,000 | $627.50 | $627,500 | 2,050 Indirect | -32.79% | Disposed | 33.1% (price as of 2026-08-20) |
| Aug. 13, 2021 | REGN | S | 500 | $620.00 | $310,000 | 44,563 Direct | -1.11% | Disposed | 34.7% (price as of 2026-08-20) |
| Aug. 12, 2021 | REGN | S | 1,000 | $611.00 | $611,000 | 45,063 Direct | -2.17% | Disposed | 36.7% (price as of 2026-08-20) |
| Aug. 11, 2021 | REGN | S | 1,000 | $620.00 | $620,000 | 47,063 Direct | -2.08% | Disposed | 34.7% (price as of 2026-08-20) |
| Aug. 11, 2021 | REGN | S | 1,000 | $621.00 | $621,000 | 46,063 Direct | -2.12% | Disposed | 34.5% (price as of 2026-08-20) |
| Aug. 11, 2021 | REGN | S | 300 | $620.00 | $186,000 | 3,050 Indirect | -8.96% | Disposed | 34.7% (price as of 2026-08-20) |
| Aug. 10, 2021 | REGN | S | 600 | $615.00 | $369,000 | 50,063 Direct | -1.18% | Disposed | 35.8% (price as of 2026-08-20) |
| Aug. 10, 2021 | REGN | S | 1,000 | $614.00 | $614,000 | 49,063 Direct | -2.00% | Disposed | 36.0% (price as of 2026-08-20) |
| Aug. 10, 2021 | REGN | S | 1,000 | $613.01 | $613,010 | 48,063 Direct | -2.04% | Disposed | 36.2% (price as of 2026-08-20) |
| Aug. 6, 2021 | REGN | S | 3,000 | $611.43 | $1,834,290 | 51,663 Direct | -5.49% | Disposed | 36.6% (price as of 2026-08-20) |
| Aug. 6, 2021 | REGN | S | 1,000 | $611.23 | $611,230 | 50,663 Direct | -1.94% | Disposed | 36.6% (price as of 2026-08-20) |
| Aug. 6, 2021 | REGN | S | 350 | $612.42 | $214,347 | 3,350 Indirect | -9.46% | Disposed | 36.3% (price as of 2026-08-20) |
| Aug. 31, 2020 | REGN | S | 3,600 | $610.45 | $2,197,620 | 60,815 Direct | -5.59% | Disposed | 36.8% (price as of 2026-08-20) |
| Aug. 31, 2020 | REGN | S | 1,400 | $611.38 | $855,932 | 59,415 Direct | -2.30% | Disposed | 36.6% (price as of 2026-08-20) |
| Aug. 31, 2020 | REGN | S | 2,000 | $612.27 | $1,224,540 | 57,415 Direct | -3.37% | Disposed | 36.4% (price as of 2026-08-20) |
| Aug. 31, 2020 | REGN | S | 1,100 | $613.54 | $674,894 | 56,315 Direct | -1.92% | Disposed | 36.1% (price as of 2026-08-20) |
| Aug. 31, 2020 | REGN | S | 1,900 | $614.51 | $1,167,569 | 54,415 Direct | -3.37% | Disposed | 35.9% (price as of 2026-08-20) |
| July 7, 2020 | REGN | S 10b5-1 | 7,500 | $650.00 | $4,875,000 | 115,415 Direct | -6.10% | Disposed | 28.5% (price as of 2026-08-20) |
| July 7, 2020 | REGN | S 10b5-1 | 500 | $650.00 | $325,000 | 1,150 Indirect | -30.30% | Disposed | 28.5% (price as of 2026-08-20) |
| July 7, 2020 | REGN | S 10b5-1 | 800 | $650.32 | $520,256 | 600 Indirect | -57.14% | Disposed | 28.4% (price as of 2026-08-20) |
| July 7, 2020 | REGN | S 10b5-1 | 200 | $651.09 | $130,218 | 400 Indirect | -33.33% | Disposed | 28.2% (price as of 2026-08-20) |
| July 7, 2020 | REGN | S 10b5-1 | 1,500 | $650.00 | $975,000 | 4,700 Indirect | -24.19% | Disposed | 28.5% (price as of 2026-08-20) |
| June 29, 2020 | REGN | S 10b5-1 | 500 | $609.37 | $304,685 | 1,650 Indirect | -23.26% | Disposed | 37.0% (price as of 2026-08-20) |
| June 29, 2020 | REGN | S 10b5-1 | 200 | $606.80 | $121,360 | 2,200 Indirect | -8.33% | Disposed | 37.6% (price as of 2026-08-20) |
| June 29, 2020 | REGN | S 10b5-1 | 200 | $607.54 | $121,508 | 2,000 Indirect | -9.09% | Disposed | 37.4% (price as of 2026-08-20) |
| June 29, 2020 | REGN | S 10b5-1 | 500 | $608.29 | $304,145 | 1,500 Indirect | -25.00% | Disposed | 37.3% (price as of 2026-08-20) |
| June 29, 2020 | REGN | S 10b5-1 | 100 | $609.68 | $60,968 | 1,400 Indirect | -6.67% | Disposed | 37.0% (price as of 2026-08-20) |
| June 29, 2020 | REGN | S 10b5-1 | 1,500 | $609.37 | $914,055 | 6,200 Indirect | -19.48% | Disposed | 37.0% (price as of 2026-08-20) |
| May 29, 2020 | REGN | S | 500 | $598.02 | $299,010 | 2,400 Indirect | -17.24% | Disposed | 39.6% (price as of 2026-08-20) |
| May 29, 2020 | REGN | S | 500 | $595.00 | $297,500 | 7,700 Indirect | -6.10% | Disposed | 40.3% (price as of 2026-08-20) |
| May 28, 2020 | REGN | S | 500 | $580.00 | $290,000 | 2,900 Indirect | -14.71% | Disposed | 44.0% (price as of 2026-08-20) |
| May 28, 2020 | REGN | S | 500 | $578.00 | $289,000 | 8,200 Indirect | -5.75% | Disposed | 44.5% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 2,500 | $460.00 | $1,150,000 | 115,415 Direct | -2.12% | Disposed | 81.5% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 300 | $450.00 | $135,000 | 2,700 Indirect | -10.00% | Disposed | 85.6% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 300 | $455.00 | $136,500 | 2,400 Indirect | -11.11% | Disposed | 83.5% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 400 | $450.00 | $180,000 | 4,100 Indirect | -8.89% | Disposed | 85.6% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 400 | $457.00 | $182,800 | 3,700 Indirect | -9.76% | Disposed | 82.7% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 500 | $450.00 | $225,000 | 9,500 Indirect | -5.00% | Disposed | 85.6% (price as of 2026-08-20) |
| Feb. 26, 2020 | REGN | S | 500 | $455.00 | $227,500 | 9,000 Indirect | -5.26% | Disposed | 83.5% (price as of 2026-08-20) |
| Jan. 2, 2020 | REGN | S 10b5-1 | 15,000 | $371.98 | $5,579,700 | 115,095 Direct | -11.53% | Disposed | 124.5% (price as of 2026-08-20) |
| Nov. 18, 2015 | REGN | S | 3,000 | $580.00 | $1,740,000 | 112,772 Direct | -2.59% | Disposed | 44.0% (price as of 2026-08-20) |
| Nov. 18, 2015 | REGN | S | 500 | $580.00 | $290,000 | 4,500 Indirect | -10.00% | Disposed | 44.0% (price as of 2026-08-20) |
| May 27, 2015 | REGN | S | 5,000 | $515.00 | $2,575,000 | 112,772 Direct | -4.25% | Disposed | 62.1% (price as of 2026-08-20) |
| Feb. 20, 2015 | REGN | S | 15,000 | $423.12 | $6,346,800 | 112,772 Direct | -11.74% | Disposed | 97.3% (price as of 2026-08-20) |
| Feb. 21, 2014 | REGN | S | 5,000 | $340.00 | $1,700,000 | 112,772 Direct | -4.25% | Disposed | 145.6% (price as of 2026-08-20) |
| Feb. 21, 2014 | REGN | S | 5,000 | $339.00 | $1,695,000 | 112,772 Direct | -4.25% | Disposed | 146.3% (price as of 2026-08-20) |
| Feb. 21, 2014 | REGN | S | 5,000 | $338.00 | $1,690,000 | 112,772 Direct | -4.25% | Disposed | 147.0% (price as of 2026-08-20) |
| Feb. 14, 2014 | REGN | S | 15,000 | $324.00 | $4,860,000 | 112,772 Direct | -11.74% | Disposed | 157.7% (price as of 2026-08-20) |
| Nov. 26, 2013 | REGN | S | 10,000 | $295.00 | $2,950,000 | 112,772 Direct | -8.15% | Disposed | 183.1% (price as of 2026-08-20) |
Showing latest 100 of 149 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 2, 2026 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (1,962) | $772.76 | Jan. 2, 2036 | 1,962 | Acquired |
| Dec. 30, 2025 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (9,212) | $520.01 | Jan. 4, 2026 | 9,212 | Disposed |
| Jan. 4, 2021 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (3,613) | $482.68 | Jan. 4, 2031 | 3,613 | Acquired |
| July 7, 2020 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (7,500) | $33.42 | Jan. 3, 2021 | 7,500 | Disposed |
| Feb. 26, 2020 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (2,500) | $33.42 | Jan. 3, 2021 | 2,500 | Disposed |
| Jan. 2, 2020 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $24.41 | Jan. 4, 2020 | 15,000 | Disposed |
| Jan. 2, 2020 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (4,361) | $374.12 | Jan. 2, 2030 | 4,361 | Acquired |
| Jan. 2, 2019 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (3,784) | $371.40 | Jan. 2, 2029 | 3,784 | Acquired |
| Jan. 3, 2017 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (7,000) | $19.69 | Jan. 3, 2017 | 7,000 | Disposed |
| Jan. 3, 2017 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (7,830) | $376.69 | Jan. 3, 2027 | 7,830 | Acquired |
| Jan. 4, 2016 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (9,212) | $520.01 | Jan. 4, 2026 | 9,212 | Acquired |
| Nov. 18, 2015 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (3,000) | $19.69 | Jan. 3, 2017 | 3,000 | Disposed |
| May 27, 2015 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $19.69 | Jan. 3, 2017 | 5,000 | Disposed |
| Feb. 20, 2015 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $18.61 | Jan. 2, 2019 | 15,000 | Disposed |
| Jan. 2, 2015 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (10,838) | $413.33 | Jan. 2, 2025 | 10,838 | Acquired |
| Feb. 21, 2014 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $15.80 | Jan. 3, 2016 | 5,000 | Disposed |
| Feb. 21, 2014 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $15.80 | Jan. 3, 2016 | 5,000 | Disposed |
| Feb. 21, 2014 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $15.80 | Jan. 3, 2016 | 5,000 | Disposed |
| Feb. 14, 2014 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $9.17 | Jan. 3, 2015 | 15,000 | Disposed |
| Jan. 2, 2014 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (12,750) | $273.67 | Jan. 2, 2024 | 12,750 | Acquired |
| Nov. 26, 2013 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $15.01 | Jan. 2, 2014 | 10,000 | Disposed |
| May 10, 2013 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $15.01 | Jan. 2, 2014 | 5,000 | Disposed |
| Jan. 2, 2013 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $177.82 | Jan. 2, 2023 | 15,000 | Acquired |
| Aug. 23, 2012 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $18.80 | Jan. 2, 2013 | 5,000 | Disposed |
| Aug. 22, 2012 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $18.80 | Jan. 2, 2013 | 5,000 | Disposed |
| July 26, 2012 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $18.80 | Jan. 2, 2013 | 5,000 | Disposed |
| Jan. 3, 2012 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $57.11 | Jan. 3, 2022 | 15,000 | Acquired |
| Nov. 22, 2011 | REGN | Non-Qualified Stock Option (right to buy) [F1] | Common Stock (15,000) | $28.81 | Jan. 1, 2012 | 15,000 | Disposed |
| Jan. 3, 2011 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $33.42 | Jan. 3, 2021 | 15,000 | Acquired |
| June 9, 2010 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $25.43 | June 9, 2010 | 5,000 | Disposed |
| Jan. 4, 2010 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $24.41 | Jan. 4, 2020 | 15,000 | Acquired |
| Jan. 2, 2009 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $18.61 | Jan. 2, 2019 | 15,000 | Acquired |
| Jan. 2, 2008 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $23.84 | Jan. 2, 2018 | 15,000 | Acquired |
| Jan. 3, 2007 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $19.69 | Jan. 3, 2017 | 15,000 | Acquired |
| Jan. 9, 2006 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $7.66 | March 1, 2009 | 10,000 | Disposed |
| Jan. 9, 2006 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $7.91 | March 2, 2008 | 10,000 | Disposed |
| Jan. 9, 2006 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $9.88 | March 1, 2007 | 10,000 | Disposed |
| Jan. 9, 2006 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (10,000) | $12.00 | March 1, 2006 | 10,000 | Disposed |
| Jan. 3, 2006 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $15.80 | Jan. 3, 2016 | 15,000 | Acquired |
| Jan. 3, 2005 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $9.17 | Jan. 3, 2015 | 15,000 | Acquired |
| March 1, 2004 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $14.00 | March 1, 2004 | 5,000 | Disposed |
| Jan. 2, 2004 | REGN | Non-Qualified Stock Option (right to buy) | Common Stock (15,000) | $15.01 | Jan. 2, 2014 | 15,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).