David E Collins

CIK 1234780 · View on SEC EDGAR ↗

Insider

First SEC filing: May 24, 2010 · Latest: May 24, 2010

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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. 20, 2013 ALGN S 6,000 $52.66 $315,960 18,200 Direct -24.79% Disposed 228.0% (price as of 2026-08-19)
Aug. 20, 2012 ALGN S 7,000 $33.84 $236,880 48,500 Direct -12.61% Disposed 410.5% (price as of 2026-08-19)
May 31, 2012 ALGN S 20,000 $30.74 $614,800 45,500 Direct -30.53% Disposed 462.0% (price as of 2026-08-19)
Feb. 29, 2012 ALGN S 9,500 $26.02 $247,190 42,500 Direct -18.27% Disposed 563.9% (price as of 2026-08-19)
Nov. 8, 2011 ALGN S 3,000 $22.95 $68,850 32,000 Direct -8.57% Disposed 652.7% (price as of 2026-08-19)
Feb. 25, 2010 ALGN S 10,000 $18.00 $180,000 29,000 Direct -25.64% Disposed 859.7% (price as of 2026-08-19)
Nov. 30, 2009 ALGN S 1,800 $16.14 $29,052 47,200 Direct -3.67% Disposed 970.3% (price as of 2026-08-19)
Nov. 30, 2009 ALGN S 800 $16.13 $12,904 46,400 Direct -1.69% Disposed 971.0% (price as of 2026-08-19)
Nov. 30, 2009 ALGN S 3,100 $16.12 $49,972 43,300 Direct -6.68% Disposed 971.6% (price as of 2026-08-19)
Nov. 30, 2009 ALGN S 1,700 $16.11 $27,387 41,600 Direct -3.93% Disposed 972.3% (price as of 2026-08-19)
Nov. 30, 2009 ALGN S 2,600 $16.10 $41,860 39,000 Direct -6.25% Disposed 973.0% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 300 $17.16 $5,148 73,700 Direct -0.41% Disposed 906.7% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 100 $17.14 $1,714 73,600 Direct -0.14% Disposed 907.8% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 600 $17.10 $10,260 73,000 Direct -0.82% Disposed 910.2% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 100 $17.06 $1,706 72,900 Direct -0.14% Disposed 912.6% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 1,200 $17.05 $20,460 71,700 Direct -1.65% Disposed 913.2% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 1,000 $16.93 $16,930 70,700 Direct -1.39% Disposed 920.3% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 600 $16.94 $10,164 70,100 Direct -0.85% Disposed 919.7% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 300 $16.91 $5,073 69,800 Direct -0.43% Disposed 921.6% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 925 $16.89 $15,623 68,875 Direct -1.33% Disposed 922.8% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 2,075 $16.88 $35,026 66,800 Direct -3.01% Disposed 923.4% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 900 $16.87 $15,183 65,900 Direct -1.35% Disposed 924.0% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 400 $16.85 $6,740 65,500 Direct -0.61% Disposed 925.2% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 300 $16.84 $5,052 65,200 Direct -0.46% Disposed 925.8% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 400 $16.83 $6,732 64,800 Direct -0.61% Disposed 926.4% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 200 $16.82 $3,364 64,600 Direct -0.31% Disposed 927.0% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 300 $16.80 $5,040 64,300 Direct -0.46% Disposed 928.2% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 100 $16.79 $1,679 64,200 Direct -0.16% Disposed 928.9% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 400 $16.78 $6,712 63,800 Direct -0.62% Disposed 929.5% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 300 $16.77 $5,031 63,500 Direct -0.47% Disposed 930.1% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 92 $16.76 $1,542 63,408 Direct -0.14% Disposed 930.7% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 208 $16.75 $3,484 63,200 Direct -0.33% Disposed 931.3% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 2,600 $16.72 $43,472 60,600 Direct -4.11% Disposed 933.2% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 500 $16.74 $8,370 60,100 Direct -0.83% Disposed 931.9% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 1,100 $16.73 $18,403 59,000 Direct -1.83% Disposed 932.5% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 1,800 $16.71 $30,078 57,200 Direct -3.05% Disposed 933.8% (price as of 2026-08-19)
Oct. 27, 2009 ALGN S 8,200 $16.70 $136,940 49,000 Direct -14.34% Disposed 934.4% (price as of 2026-08-19)
May 29, 2009 ALGN S 415 $11.89 $4,934 33,585 Direct -1.22% Disposed 1352.9% (price as of 2026-08-19)
May 29, 2009 ALGN S 700 $11.88 $8,316 32,885 Direct -2.08% Disposed 1354.1% (price as of 2026-08-19)
May 29, 2009 ALGN S 85 $11.87 $1,009 32,800 Direct -0.26% Disposed 1355.3% (price as of 2026-08-19)
May 29, 2009 ALGN S 200 $11.85 $2,370 32,600 Direct -0.61% Disposed 1357.8% (price as of 2026-08-19)
May 29, 2009 ALGN S 600 $11.84 $7,104 32,000 Direct -1.84% Disposed 1359.0% (price as of 2026-08-19)
May 29, 2009 ALGN S 700 $11.83 $8,281 31,300 Direct -2.19% Disposed 1360.2% (price as of 2026-08-19)
May 29, 2009 ALGN S 300 $11.82 $3,546 31,000 Direct -0.96% Disposed 1361.5% (price as of 2026-08-19)
May 29, 2009 ALGN S 500 $11.75 $5,875 30,500 Direct -1.61% Disposed 1370.2% (price as of 2026-08-19)
May 29, 2009 ALGN S 1,000 $11.80 $11,800 29,500 Direct -3.28% Disposed 1363.9% (price as of 2026-08-19)
May 29, 2009 ALGN S 800 $11.69 $9,352 28,700 Direct -2.71% Disposed 1377.7% (price as of 2026-08-19)
May 29, 2009 ALGN S 2,800 $11.70 $32,760 25,900 Direct -9.76% Disposed 1376.5% (price as of 2026-08-19)
May 29, 2009 ALGN S 100 $11.67 $1,167 25,800 Direct -0.39% Disposed 1380.2% (price as of 2026-08-19)
May 29, 2009 ALGN S 300 $11.66 $3,498 25,500 Direct -1.16% Disposed 1381.5% (price as of 2026-08-19)
May 29, 2009 ALGN S 400 $11.65 $4,660 25,100 Direct -1.57% Disposed 1382.8% (price as of 2026-08-19)
May 29, 2009 ALGN S 1,000 $11.73 $11,730 24,100 Direct -3.98% Disposed 1372.7% (price as of 2026-08-19)
May 29, 2009 ALGN S 100 $11.71 $1,171 24,000 Direct -0.41% Disposed 1375.2% (price as of 2026-08-19)
Feb. 15, 2008 ALGN P 1,001 $12.93 $12,943 19,001 Direct +5.56% Acquired 1236.0% (price as of 2026-08-19)
Feb. 15, 2008 ALGN P 400 $12.94 $5,176 19,401 Direct +2.11% Acquired 1235.0% (price as of 2026-08-19)
Feb. 15, 2008 ALGN P 900 $12.95 $11,655 20,301 Direct +4.64% Acquired 1233.9% (price as of 2026-08-19)
Feb. 15, 2008 ALGN P 1,500 $12.96 $19,440 21,801 Direct +7.39% Acquired 1232.9% (price as of 2026-08-19)
Feb. 15, 2008 ALGN P 6,199 $12.97 $80,401 28,000 Direct +28.43% Acquired 1231.9% (price as of 2026-08-19)
July 27, 2007 ALGN S 500 $27.40 $13,700 50,500 Direct -0.98% Disposed 530.5% (price as of 2026-08-19)
July 27, 2007 ALGN S 8,792 $27.15 $238,703 41,708 Direct -17.41% Disposed 536.3% (price as of 2026-08-19)

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) — — 7,700 Disposed
May 16, 2013 ALGN Restricted Stock Unit Common Stock (7,700) — — 7,700 Disposed
May 16, 2013 ALGN Restricted Stock Unit Common Stock (7,700) — — 7,700 Acquired
Aug. 20, 2012 ALGN Right to Buy (Common Stock) Common Stock (10,000) $24.20 May 19, 2018 10,000 Disposed
May 31, 2012 ALGN Right to Buy (Common Stock) Common Stock (10,000) $16.01 May 20, 2017 10,000 Disposed
May 31, 2012 ALGN Right to Buy (Common Stock) Common Stock (10,000) $22.67 May 23, 2014 10,000 Disposed
May 23, 2012 ALGN Restricted Stock Unit Common Stock (7,700) — — 7,700 Acquired
May 21, 2012 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Disposed
Feb. 16, 2012 ALGN Right to Buy (Common Stock) Common Stock (10,000) $11.81 May 21, 2019 10,000 Disposed
Feb. 16, 2012 ALGN Right to Buy (Common Stock) Common Stock (10,000) $12.89 May 18, 2018 10,000 Disposed
May 19, 2011 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Disposed
May 19, 2011 ALGN Stock Option (Right to Buy) Common Stock (10,000) $24.20 May 19, 2018 10,000 Acquired
May 19, 2011 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Acquired
May 20, 2010 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Acquired
May 20, 2010 ALGN Stock Option (right to buy) [F3] Common Stock (10,000) $16.01 May 20, 2017 10,000 Acquired
May 20, 2010 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Disposed
Oct. 27, 2009 ALGN Right to Buy (Common Stock) Common Stock (50,000) $6.00 April 1, 2013 50,000 Disposed
May 21, 2009 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Acquired
May 21, 2009 ALGN Right to buy (Common Stock Common Stock (10,000) $11.81 May 21, 2019 10,000 Acquired
May 15, 2009 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Disposed
May 15, 2008 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Disposed
May 15, 2008 ALGN Restricted Stock Unit Common Stock (3,000) — — 3,000 Acquired
May 15, 2008 ALGN Right to Buy (Stock Option) Common Stock (10,000) $12.89 May 15, 2018 10,000 Acquired
July 27, 2007 ALGN Right to buy (Common Stock) Common Stock (8,000) $19.40 May 19, 2014 8,000 Disposed
July 27, 2007 ALGN Right to buy (Common Stock) Common Stock (25,000) $6.00 April 1, 2013 25,000 Disposed
May 30, 2007 ALGN Right to buy (Common Stock) Common Stock (8,000) $7.35 May 24, 2016 8,000 Disposed
May 23, 2007 ALGN Right to buy (Common Stock) Common Stock (10,000) $22.67 May 23, 2017 10,000 Acquired
May 23, 2007 ALGN Restricted Stock Unit Common Stock (3,000) — May 23, 2017 3,000 Acquired
May 2, 2007 ALGN Right to buy (Stock Option) Common Stock (8,000) $7.19 May 25, 2015 8,000 Disposed
May 24, 2006 ALGN Right to buy (Common Stock) Common Stock (8,000) $7.35 May 24, 2016 8,000 Acquired
May 25, 2005 ALGN Right to buy (Common Stock) Common Stock (8,000) $7.19 May 25, 2015 8,000 Acquired
May 19, 2004 ALGN Right to buy (Common Stock) [F1] Common Stock (8,000) $19.40 May 19, 2014 8,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).