Rebecca M Henderson
CIK 1254748 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 3, 2009 · Latest: Aug. 3, 2009
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 82 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
82 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 23, 2017 | IDXX | S | 2,578 | $153.71 | $396,264 | 14,696 Direct | -14.92% | Disposed | 255.6% (price as of 2026-08-21) |
| Aug. 22, 2017 | IDXX | S | 2,578 | $152.86 | $394,073 | 17,274 Direct | -12.99% | Disposed | 257.6% (price as of 2026-08-21) |
| May 4, 2017 | IDXX | S | 1,700 | $159.95 | $271,915 | 19,852 Direct | -7.89% | Disposed | 241.7% (price as of 2026-08-21) |
| Feb. 28, 2017 | IDXX | S | 300 | $146.00 | $43,800 | 14,950 Direct | -1.97% | Disposed | 274.4% (price as of 2026-08-21) |
| Feb. 28, 2017 | IDXX | S | 5,500 | $145.23 | $798,765 | 15,250 Direct | -26.51% | Disposed | 276.4% (price as of 2026-08-21) |
| Feb. 28, 2017 | IDXX | S | 700 | $144.50 | $101,150 | 20,750 Direct | -3.26% | Disposed | 278.3% (price as of 2026-08-21) |
| Aug. 25, 2016 | IDXX | S | 9,924 | $110.43 | $1,095,907 | 21,450 Direct | -31.63% | Disposed | 395.0% (price as of 2026-08-21) |
| Aug. 25, 2016 | IDXX | S | 9,924 | $110.43 | $1,095,907 | 6,754 Direct | -59.50% | Disposed | 395.0% (price as of 2026-08-21) |
| Nov. 12, 2015 | IDXX | S | 2,300 | $68.39 | $157,297 | 21,450 Direct | -9.68% | Disposed | 699.3% (price as of 2026-08-21) |
| Feb. 5, 2015 | IDXX | S | 2,934 | $156.27 | $458,496 | 7,348 Direct | -28.54% | Disposed | 599.6% (price as of 2026-08-21) |
| Feb. 13, 2014 | AMGN | S | 20,000 | $123.53 | $2,470,600 | 5,549 Direct | -78.28% | Disposed | 253.0% (price as of 2026-08-21) |
| May 17, 2013 | AMGN | S | 1,421 | $105.84 | $150,399 | 5,477 Direct | -20.60% | Disposed | 312.0% (price as of 2026-08-21) |
| May 17, 2013 | AMGN | S | 7,000 | $105.70 | $739,900 | 6,898 Direct | -50.37% | Disposed | 312.6% (price as of 2026-08-21) |
| Nov. 6, 2012 | IDXX | S | 1,000 | $94.51 | $94,510 | 7,348 Direct | -11.98% | Disposed | 1056.7% (price as of 2026-08-21) |
| Nov. 28, 2011 | IDXX | S | 5,000 | $71.43 | $357,150 | 8,348 Direct | -37.46% | Disposed | 1430.5% (price as of 2026-08-21) |
| June 9, 2010 | IDXX | S | 10,466 | $62.29 | $651,927 | 8,348 Direct | -55.63% | Disposed | 1655.1% (price as of 2026-08-21) |
| March 17, 2010 | IDXX | S | 2,000 | $56.77 | $113,540 | 7,348 Direct | -21.39% | Disposed | 1825.7% (price as of 2026-08-21) |
| Feb. 16, 2007 | IDXX | P | 1,000 | $85.51 | $85,510 | 3,245 Direct | +44.54% | Acquired | 2457.0% (price as of 2026-08-21) |
Showing latest 100 of 115 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 |
|---|---|---|---|---|---|---|---|
| Aug. 10, 2018 | AMGN | Nqso (Right to Buy) | Common Stock (3,000) | $63.11 | July 30, 2019 | 3,000 | Disposed |
| May 9, 2018 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (2,187) | $206.62 | May 8, 2028 | 2,187 | Acquired |
| May 9, 2018 | IDXX | Deferred Stock Unit | Common Stock (224) | — | — | 224 | Acquired |
| May 4, 2017 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (6,602) | $38.80 | Feb. 13, 2018 | 6,602 | Disposed |
| May 3, 2017 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (3,046) | $160.28 | May 2, 2027 | 3,046 | Acquired |
| May 3, 2017 | IDXX | Deferred Stock Unit | Common Stock (289) | — | — | 289 | Acquired |
| Aug. 25, 2016 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (9,924) | $26.66 | Feb. 13, 2017 | 9,924 | Disposed |
| Aug. 25, 2016 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (9,924) | $26.66 | Feb. 13, 2017 | 9,924 | Disposed |
| May 4, 2016 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (5,902) | $85.00 | May 3, 2026 | 5,902 | Acquired |
| May 4, 2016 | IDXX | Deferred Stock Unit | Common Stock (515) | — | — | 515 | Acquired |
| Nov. 12, 2015 | IDXX | Non-Qualified Stock Option (right-to-buy) | Common Stock (9,054) | $17.18 | Feb. 13, 2016 | 9,054 | Disposed |
| May 6, 2015 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (3,861) | $127.90 | May 5, 2025 | 3,861 | Acquired |
| May 6, 2015 | IDXX | Deferred Stock Unit | Common Stock (342) | — | — | 342 | Acquired |
| Feb. 5, 2015 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (2,934) | $56.95 | Feb. 13, 2015 | 2,934 | Disposed |
| May 7, 2014 | IDXX | Non-Qualified Stock Options (right t0 buy) | Common Stock (2,987) | $129.38 | May 6, 2024 | 2,987 | Acquired |
| May 7, 2014 | IDXX | Deferred Stock Unit | Common Stock (290) | — | — | 290 | Acquired |
| Feb. 13, 2014 | AMGN | Nqso (Right to Buy) | Common Stock (3,000) | $58.43 | April 26, 2020 | 3,000 | Disposed |
| Feb. 13, 2014 | AMGN | Nqso (Right to Buy) | Common Stock (17,000) | $63.11 | July 30, 2019 | 17,000 | Disposed |
| May 17, 2013 | AMGN | Nqso (Right to Buy) | Common Stock (5,000) | $54.69 | April 25, 2021 | 5,000 | Disposed |
| May 17, 2013 | AMGN | Nqso (Right to Buy) | Common Stock (2,000) | $58.43 | April 26, 2020 | 2,000 | Disposed |
| May 8, 2013 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (4,395) | $87.36 | May 7, 2023 | 4,395 | Acquired |
| May 8, 2013 | IDXX | Deferred Stock Unit | Common Stock (429) | — | — | 429 | Acquired |
| May 9, 2012 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (3,752) | $88.09 | May 8, 2019 | 3,752 | Acquired |
| May 9, 2012 | IDXX | Deferred Stock Unit | Common Stock (369) | — | — | 369 | Acquired |
| April 27, 2012 | AMGN | Nqso (Right to Buy) | Common Stock (5,000) | $71.64 | April 27, 2022 | 5,000 | Acquired |
| Dec. 8, 2011 | AMGN | Dividend Equivalent | Common Stock (8) | — | — | 8 | Acquired |
| Nov. 28, 2011 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (5,000) | $29.27 | May 17, 2015 | 5,000 | Disposed |
| Sept. 8, 2011 | AMGN | Dividend Equivalent | Common Stock (9) | — | — | 9 | Acquired |
| April 25, 2011 | AMGN | Nqso (Right to Buy) | Common Stock (5,000) | $54.69 | April 25, 2021 | 5,000 | Acquired |
| Feb. 14, 2011 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (3,301) | $77.59 | Feb. 13, 2018 | 3,301 | Acquired |
| Feb. 14, 2011 | IDXX | Deferred Stock Unit | Common Stock (354) | — | — | 354 | Acquired |
| May 25, 2010 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (4,800) | $30.50 | May 18, 2014 | 4,800 | Disposed |
| May 25, 2010 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (6,666) | $17.11 | July 16, 2013 | 6,666 | Disposed |
| April 26, 2010 | AMGN | Nqso (Right to Buy) | Common Stock (5,000) | $58.43 | April 26, 2020 | 5,000 | Acquired |
| Feb. 14, 2010 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (4,962) | $53.31 | Feb. 13, 2017 | 4,962 | Acquired |
| Feb. 14, 2010 | IDXX | Deferred Stock Unit | Common Stock (516) | — | — | 516 | Acquired |
| July 30, 2009 | AMGN | Nqso (Right to Buy) | Common Stock (20,000) | $63.11 | July 30, 2019 | 20,000 | Acquired |
| Feb. 14, 2009 | IDXX | Deferred Stock Unit | Common Stock (1,309) | — | — | 1,309 | Acquired |
| Feb. 14, 2009 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (4,527) | $34.37 | Feb. 13, 2016 | 4,527 | Acquired |
| Feb. 14, 2008 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (2,934) | $56.95 | Feb. 13, 2015 | 2,934 | Acquired |
| Feb. 14, 2008 | IDXX | Deferred Stock Unit | Common Stock (790) | — | — | 790 | Acquired |
| Feb. 14, 2007 | IDXX | Deferred Stock Unit | Common Stock (895) | — | — | 895 | Acquired |
| Feb. 14, 2006 | IDXX | Deferred Stock Unit | Common Stock (978) | — | — | 978 | Acquired |
| May 18, 2005 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (2,500) | $58.54 | May 17, 2015 | 2,500 | Acquired |
| May 19, 2004 | IDXX | Non-Qualified Stock Option (right to buy) | Common Stock (2,400) | $60.99 | May 19, 2014 | 2,400 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).