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David E Collins
Insider
First SEC filing: May 24, 2010 · Latest: May 24, 2010
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 15, 2014 | ALGN | C | 7,700 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 15, 2014 | ALGN | C | 7,700 | · | · | 25,900 Direct | +42.31% | Acquired | (price as of 2026-10-02) |
| Nov. 20, 2013 | ALGN | S | 6,000 | $52.66 | $315,960 | 18,200 Direct | -24.79% | Disposed | 173.0% (price as of 2026-10-02) |
| May 16, 2013 | ALGN | C | 7,700 | · | · | 24,200 Direct | +46.67% | Acquired | (price as of 2026-10-02) |
| May 16, 2013 | ALGN | C | 7,700 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 16, 2013 | ALGN | A | 7,700 | · | · | 7,700 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 17, 2012 | ALGN | G | 30,500 | · | · | 16,500 Direct | -64.89% | Disposed | (price as of 2026-10-02) |
| Sept. 17, 2012 | ALGN | G | 1,500 | · | · | 47,000 Direct | -3.09% | Disposed | (price as of 2026-10-02) |
| Aug. 20, 2012 | ALGN | M | 10,000 | $24.20 | $242,000 | 55,500 Direct | +21.98% | Acquired | 494.0% (price as of 2026-10-02) |
| Aug. 20, 2012 | ALGN | S | 7,000 | $33.84 | $236,880 | 48,500 Direct | -12.61% | Disposed | 324.8% (price as of 2026-10-02) |
| Aug. 20, 2012 | ALGN | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 31, 2012 | ALGN | M | 10,000 | $22.67 | $226,700 | 55,500 Direct | +21.98% | Acquired | 534.1% (price as of 2026-10-02) |
| May 31, 2012 | ALGN | M | 10,000 | $16.01 | $160,100 | 65,500 Direct | +18.02% | Acquired | 797.8% (price as of 2026-10-02) |
| May 31, 2012 | ALGN | S | 20,000 | $30.74 | $614,800 | 45,500 Direct | -30.53% | Disposed | 367.6% (price as of 2026-10-02) |
| May 31, 2012 | ALGN | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 31, 2012 | ALGN | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 23, 2012 | ALGN | A | 7,700 | · | · | 7,700 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2012 | ALGN | C | 3,000 | · | · | 45,500 Direct | +7.06% | Acquired | (price as of 2026-10-02) |
| May 21, 2012 | ALGN | C | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 29, 2012 | ALGN | S | 9,500 | $26.02 | $247,190 | 42,500 Direct | -18.27% | Disposed | 452.4% (price as of 2026-10-02) |
| Feb. 16, 2012 | ALGN | M | 10,000 | $11.81 | $118,100 | 42,000 Direct | +31.25% | Acquired | 1117.1% (price as of 2026-10-02) |
| Feb. 16, 2012 | ALGN | M | 10,000 | $12.89 | $128,900 | 52,000 Direct | +23.81% | Acquired | 1015.1% (price as of 2026-10-02) |
| Feb. 16, 2012 | ALGN | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 16, 2012 | ALGN | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 8, 2011 | ALGN | S | 3,000 | $22.95 | $68,850 | 32,000 Direct | -8.57% | Disposed | 526.3% (price as of 2026-10-02) |
| May 19, 2011 | ALGN | C | 3,000 | · | · | 35,000 Direct | +9.38% | Acquired | (price as of 2026-10-02) |
| May 19, 2011 | ALGN | C | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 19, 2011 | ALGN | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 19, 2011 | ALGN | D | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 20, 2010 | ALGN | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 20, 2010 | ALGN | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 20, 2010 | ALGN | C | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 20, 2010 | ALGN | C | 3,000 | · | · | 32,000 Direct | +10.34% | Acquired | (price as of 2026-10-02) |
| Feb. 25, 2010 | ALGN | S | 10,000 | $18.00 | $180,000 | 29,000 Direct | -25.64% | Disposed | 698.6% (price as of 2026-10-02) |
| Nov. 30, 2009 | ALGN | S | 1,800 | $16.14 | $29,052 | 47,200 Direct | -3.67% | Disposed | 790.6% (price as of 2026-10-02) |
| Nov. 30, 2009 | ALGN | S | 800 | $16.13 | $12,904 | 46,400 Direct | -1.69% | Disposed | 791.1% (price as of 2026-10-02) |
| Nov. 30, 2009 | ALGN | S | 3,100 | $16.12 | $49,972 | 43,300 Direct | -6.68% | Disposed | 791.7% (price as of 2026-10-02) |
| Nov. 30, 2009 | ALGN | S | 1,700 | $16.11 | $27,387 | 41,600 Direct | -3.93% | Disposed | 792.2% (price as of 2026-10-02) |
| Nov. 30, 2009 | ALGN | S | 2,600 | $16.10 | $41,860 | 39,000 Direct | -6.25% | Disposed | 792.8% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | M | 50,000 | $6.00 | $300,000 | 74,000 Direct | +208.33% | Acquired | 2295.7% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 300 | $17.16 | $5,148 | 73,700 Direct | -0.41% | Disposed | 737.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 100 | $17.14 | $1,714 | 73,600 Direct | -0.14% | Disposed | 738.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 600 | $17.10 | $10,260 | 73,000 Direct | -0.82% | Disposed | 740.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 100 | $17.06 | $1,706 | 72,900 Direct | -0.14% | Disposed | 742.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 1,200 | $17.05 | $20,460 | 71,700 Direct | -1.65% | Disposed | 743.0% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 1,000 | $16.93 | $16,930 | 70,700 Direct | -1.39% | Disposed | 749.0% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 600 | $16.94 | $10,164 | 70,100 Direct | -0.85% | Disposed | 748.5% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 300 | $16.91 | $5,073 | 69,800 Direct | -0.43% | Disposed | 750.0% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 925 | $16.89 | $15,623 | 68,875 Direct | -1.33% | Disposed | 751.0% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 2,075 | $16.88 | $35,026 | 66,800 Direct | -3.01% | Disposed | 751.5% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 900 | $16.87 | $15,183 | 65,900 Direct | -1.35% | Disposed | 752.0% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 400 | $16.85 | $6,740 | 65,500 Direct | -0.61% | Disposed | 753.1% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 300 | $16.84 | $5,052 | 65,200 Direct | -0.46% | Disposed | 753.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 400 | $16.83 | $6,732 | 64,800 Direct | -0.61% | Disposed | 754.1% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 200 | $16.82 | $3,364 | 64,600 Direct | -0.31% | Disposed | 754.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 300 | $16.80 | $5,040 | 64,300 Direct | -0.46% | Disposed | 755.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 100 | $16.79 | $1,679 | 64,200 Direct | -0.16% | Disposed | 756.1% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 400 | $16.78 | $6,712 | 63,800 Direct | -0.62% | Disposed | 756.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 300 | $16.77 | $5,031 | 63,500 Direct | -0.47% | Disposed | 757.1% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 92 | $16.76 | $1,542 | 63,408 Direct | -0.14% | Disposed | 757.6% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 208 | $16.75 | $3,484 | 63,200 Direct | -0.33% | Disposed | 758.1% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 2,600 | $16.72 | $43,472 | 60,600 Direct | -4.11% | Disposed | 759.7% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 500 | $16.74 | $8,370 | 60,100 Direct | -0.83% | Disposed | 758.7% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 1,100 | $16.73 | $18,403 | 59,000 Direct | -1.83% | Disposed | 759.2% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 1,800 | $16.71 | $30,078 | 57,200 Direct | -3.05% | Disposed | 760.2% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | S | 8,200 | $16.70 | $136,940 | 49,000 Direct | -14.34% | Disposed | 760.7% (price as of 2026-10-02) |
| Oct. 27, 2009 | ALGN | M | 50,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 415 | $11.89 | $4,934 | 33,585 Direct | -1.22% | Disposed | 1108.9% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 700 | $11.88 | $8,316 | 32,885 Direct | -2.08% | Disposed | 1109.9% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 85 | $11.87 | $1,009 | 32,800 Direct | -0.26% | Disposed | 1111.0% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 200 | $11.85 | $2,370 | 32,600 Direct | -0.61% | Disposed | 1113.0% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 600 | $11.84 | $7,104 | 32,000 Direct | -1.84% | Disposed | 1114.0% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 700 | $11.83 | $8,281 | 31,300 Direct | -2.19% | Disposed | 1115.0% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 300 | $11.82 | $3,546 | 31,000 Direct | -0.96% | Disposed | 1116.1% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 500 | $11.75 | $5,875 | 30,500 Direct | -1.61% | Disposed | 1123.3% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 1,000 | $11.80 | $11,800 | 29,500 Direct | -3.28% | Disposed | 1118.1% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 800 | $11.69 | $9,352 | 28,700 Direct | -2.71% | Disposed | 1129.6% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 2,800 | $11.70 | $32,760 | 25,900 Direct | -9.76% | Disposed | 1128.5% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 100 | $11.67 | $1,167 | 25,800 Direct | -0.39% | Disposed | 1131.7% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 300 | $11.66 | $3,498 | 25,500 Direct | -1.16% | Disposed | 1132.8% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 400 | $11.65 | $4,660 | 25,100 Direct | -1.57% | Disposed | 1133.8% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 1,000 | $11.73 | $11,730 | 24,100 Direct | -3.98% | Disposed | 1125.4% (price as of 2026-10-02) |
| May 29, 2009 | ALGN | S | 100 | $11.71 | $1,171 | 24,000 Direct | -0.41% | Disposed | 1127.5% (price as of 2026-10-02) |
| May 21, 2009 | ALGN | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2009 | ALGN | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 15, 2009 | ALGN | C | 3,000 | · | · | 34,000 Direct | +9.68% | Acquired | (price as of 2026-10-02) |
| May 15, 2009 | ALGN | C | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 15, 2008 | ALGN | C | 3,000 | · | · | 31,000 Direct | +10.71% | Acquired | (price as of 2026-10-02) |
| May 15, 2008 | ALGN | C | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 15, 2008 | ALGN | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 15, 2008 | ALGN | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2008 | ALGN | P | 1,001 | $12.93 | $12,943 | 19,001 Direct | +5.56% | Acquired | 1011.7% (price as of 2026-10-02) |
| Feb. 15, 2008 | ALGN | P | 400 | $12.94 | $5,176 | 19,401 Direct | +2.11% | Acquired | 1010.8% (price as of 2026-10-02) |
| Feb. 15, 2008 | ALGN | P | 900 | $12.95 | $11,655 | 20,301 Direct | +4.64% | Acquired | 1010.0% (price as of 2026-10-02) |
| Feb. 15, 2008 | ALGN | P | 1,500 | $12.96 | $19,440 | 21,801 Direct | +7.39% | Acquired | 1009.1% (price as of 2026-10-02) |
| Feb. 15, 2008 | ALGN | P | 6,199 | $12.97 | $80,401 | 28,000 Direct | +28.43% | Acquired | 1008.2% (price as of 2026-10-02) |
| July 27, 2007 | ALGN | M | 8,000 | $19.40 | $155,200 | 26,000 Direct | +44.44% | Acquired | 640.9% (price as of 2026-10-02) |
| July 27, 2007 | ALGN | M | 25,000 | $6.00 | $150,000 | 51,000 Direct | +96.15% | Acquired | 2295.7% (price as of 2026-10-02) |
| July 27, 2007 | ALGN | S | 500 | $27.40 | $13,700 | 50,500 Direct | -0.98% | Disposed | 424.6% (price as of 2026-10-02) |
| July 27, 2007 | ALGN | S | 8,792 | $27.15 | $238,703 | 41,708 Direct | -17.41% | Disposed | 429.4% (price as of 2026-10-02) |
Showing latest 100 of 139 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 |
|---|---|---|---|---|---|---|---|
| May 15, 2014 | ALGN | Restricted Stock Unit | Common Stock | · | · | 7,700 | Disposed |
| May 16, 2013 | ALGN | Restricted Stock Unit | Common Stock | · | · | 7,700 | Disposed |
| May 16, 2013 | ALGN | Restricted Stock Unit | Common Stock | · | · | 7,700 | Acquired |
| Aug. 20, 2012 | ALGN | Right to Buy (Common Stock) | Common Stock | $24.20 | May 19, 2018 | 10,000 | Disposed |
| May 31, 2012 | ALGN | Right to Buy (Common Stock) | Common Stock | $16.01 | May 20, 2017 | 10,000 | Disposed |
| May 31, 2012 | ALGN | Right to Buy (Common Stock) | Common Stock | $22.67 | May 23, 2014 | 10,000 | Disposed |
| May 23, 2012 | ALGN | Restricted Stock Unit | Common Stock | · | · | 7,700 | Acquired |
| May 21, 2012 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Disposed |
| Feb. 16, 2012 | ALGN | Right to Buy (Common Stock) | Common Stock | $11.81 | May 21, 2019 | 10,000 | Disposed |
| Feb. 16, 2012 | ALGN | Right to Buy (Common Stock) | Common Stock | $12.89 | May 18, 2018 | 10,000 | Disposed |
| May 19, 2011 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Disposed |
| May 19, 2011 | ALGN | Stock Option (Right to Buy) | Common Stock | $24.20 | May 19, 2018 | 10,000 | Acquired |
| May 19, 2011 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Acquired |
| May 20, 2010 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Acquired |
| May 20, 2010 | ALGN | Stock Option (right to buy) [F3] | Common Stock | $16.01 | May 20, 2017 | 10,000 | Acquired |
| May 20, 2010 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Disposed |
| Oct. 27, 2009 | ALGN | Right to Buy (Common Stock) | Common Stock | $6.00 | April 1, 2013 | 50,000 | Disposed |
| May 21, 2009 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Acquired |
| May 21, 2009 | ALGN | Right to buy (Common Stock | Common Stock | $11.81 | May 21, 2019 | 10,000 | Acquired |
| May 15, 2009 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Disposed |
| May 15, 2008 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Disposed |
| May 15, 2008 | ALGN | Restricted Stock Unit | Common Stock | · | · | 3,000 | Acquired |
| May 15, 2008 | ALGN | Right to Buy (Stock Option) | Common Stock | $12.89 | May 15, 2018 | 10,000 | Acquired |
| July 27, 2007 | ALGN | Right to buy (Common Stock) | Common Stock | $19.40 | May 19, 2014 | 8,000 | Disposed |
| July 27, 2007 | ALGN | Right to buy (Common Stock) | Common Stock | $6.00 | April 1, 2013 | 25,000 | Disposed |
| May 30, 2007 | ALGN | Right to buy (Common Stock) | Common Stock | $7.35 | May 24, 2016 | 8,000 | Disposed |
| May 23, 2007 | ALGN | Right to buy (Common Stock) | Common Stock | $22.67 | May 23, 2017 | 10,000 | Acquired |
| May 23, 2007 | ALGN | Restricted Stock Unit | Common Stock | · | May 23, 2017 | 3,000 | Acquired |
| May 2, 2007 | ALGN | Right to buy (Stock Option) | Common Stock | $7.19 | May 25, 2015 | 8,000 | Disposed |
| May 24, 2006 | ALGN | Right to buy (Common Stock) | Common Stock | $7.35 | May 24, 2016 | 8,000 | Acquired |
| May 25, 2005 | ALGN | Right to buy (Common Stock) | Common Stock | $7.19 | May 25, 2015 | 8,000 | Acquired |
| May 19, 2004 | ALGN | Right to buy (Common Stock) [F1] | Common Stock | $19.40 | May 19, 2014 | 8,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).