David C Nagel
CIK 1238731 · View on SEC EDGAR ↗
Insider
First SEC filing: July 17, 2009 · Latest: July 17, 2009
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 21 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
21 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 5, 2016 | ALGN | S 10b5-1 | 1,100 | $64.64 | $71,104 | 24,700 Direct | -4.26% | Disposed | 149.0% (price as of 2026-08-20) |
| Dec. 14, 2015 | ALGN | S 10b5-1 | 1,100 | $65.20 | $71,720 | 25,800 Direct | -4.09% | Disposed | 146.9% (price as of 2026-08-20) |
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 13, 2016 | ALGN | Restricted Stock Unit | Commo Stock (5,500) | — | — | 5,500 | Disposed |
| May 13, 2015 | ALGN | Restricted Stock Unit | Common Stock (5,500) | — | — | 5,500 | Disposed |
| May 13, 2015 | ALGN | Restricted Stock Unit | Common Stock (5,500) | — | — | 5,500 | Acquired |
| May 15, 2014 | ALGN | Restricted Stock Unit | Common Stock (5,500) | — | — | 5,500 | Acquired |
| 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 |
| 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 |
| 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 | Stock Option (Right to buy) [F1] | 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 | Acquired |
| July 15, 2009 | ALGN | Stock Option (Right to Buy) | Common Stock (40,000) | $10.00 | July 15, 2019 | 40,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).