David F Burgstahler
CIK 1374179 · View on SEC EDGAR ↗
Insider
First SEC filing: June 24, 2015 · Latest: June 24, 2015
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 18 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
18 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 7, 2017 | LNTH | S | 14,415 | $16.56 | $238,712 | 38,269 Indirect | -27.36% | Disposed | 505.7% (price as of 2026-08-21) |
| Sept. 7, 2017 | LNTH | S | 88,543 | $16.56 | $1,466,272 | 247,253 Indirect | -26.37% | Disposed | 505.7% (price as of 2026-08-21) |
| Sept. 6, 2017 | LNTH | S | 17,524 | $16.59 | $290,723 | 335,796 Indirect | -4.96% | Disposed | 504.6% (price as of 2026-08-21) |
| Sept. 6, 2017 | LNTH | S | 3,299 | $16.59 | $54,730 | 52,684 Indirect | -5.89% | Disposed | 504.6% (price as of 2026-08-21) |
| Sept. 5, 2017 | LNTH | S | 43,568 | $17.08 | $744,141 | 353,320 Indirect | -10.98% | Disposed | 487.2% (price as of 2026-08-21) |
| Sept. 5, 2017 | LNTH | S | 8,442 | $17.08 | $144,189 | 55,983 Indirect | -13.10% | Disposed | 487.2% (price as of 2026-08-21) |
| Sept. 1, 2017 | LNTH | S | 5,162 | $17.10 | $88,270 | 396,888 Indirect | -1.28% | Disposed | 486.5% (price as of 2026-08-21) |
| Sept. 1, 2017 | LNTH | S | 838 | $17.10 | $14,330 | 64,425 Indirect | -1.28% | Disposed | 486.5% (price as of 2026-08-21) |
| Aug. 31, 2017 | LNTH | S | 130,773 | $17.36 | $2,270,219 | 402,050 Indirect | -24.54% | Disposed | 477.8% (price as of 2026-08-21) |
| Aug. 31, 2017 | LNTH | S | 21,228 | $17.36 | $368,518 | 65,263 Indirect | -24.54% | Disposed | 477.8% (price as of 2026-08-21) |
| Aug. 30, 2017 | LNTH | S | 8,104 | $17.05 | $138,173 | 86,491 Indirect | -8.57% | Disposed | 488.3% (price as of 2026-08-21) |
| Aug. 30, 2017 | LNTH | S | 49,927 | $17.05 | $851,255 | 532,823 Indirect | -8.57% | Disposed | 488.3% (price as of 2026-08-21) |
| Aug. 29, 2017 | LNTH | S | 2,884 | $17.02 | $49,086 | 94,595 Indirect | -2.96% | Disposed | 489.3% (price as of 2026-08-21) |
| Aug. 29, 2017 | LNTH | S | 17,769 | $17.02 | $302,428 | 582,750 Indirect | -2.96% | Disposed | 489.3% (price as of 2026-08-21) |
| Aug. 28, 2017 | LNTH | S | 4,035 | $17.01 | $68,635 | 97,479 Indirect | -3.97% | Disposed | 489.7% (price as of 2026-08-21) |
| Aug. 28, 2017 | LNTH | S | 24,855 | $17.01 | $422,784 | 600,519 Indirect | -3.97% | Disposed | 489.7% (price as of 2026-08-21) |
| Aug. 25, 2017 | LNTH | S | 5,904 | $17.01 | $100,427 | 101,514 Indirect | -5.50% | Disposed | 489.7% (price as of 2026-08-21) |
| Aug. 25, 2017 | LNTH | S | 36,372 | $17.01 | $618,688 | 625,374 Indirect | -5.50% | Disposed | 489.7% (price as of 2026-08-21) |
| Aug. 24, 2017 | LNTH | S | 2,793 | $17.02 | $47,537 | 107,418 Indirect | -2.53% | Disposed | 489.3% (price as of 2026-08-21) |
| Aug. 24, 2017 | LNTH | S | 17,207 | $17.02 | $292,863 | 661,746 Indirect | -2.53% | Disposed | 489.3% (price as of 2026-08-21) |
| Aug. 16, 2017 | LNTH | S | 1,694 | $17.05 | $28,883 | 122,492 Indirect | -1.36% | Disposed | 488.3% (price as of 2026-08-21) |
| Aug. 16, 2017 | LNTH | S | 10,434 | $17.05 | $177,900 | 754,611 Indirect | -1.36% | Disposed | 488.3% (price as of 2026-08-21) |
| Aug. 15, 2017 | LNTH | S | 5,695 | $17.06 | $97,157 | 124,186 Indirect | -4.38% | Disposed | 487.9% (price as of 2026-08-21) |
| Aug. 15, 2017 | LNTH | S | 35,084 | $17.06 | $598,533 | 765,045 Indirect | -4.38% | Disposed | 487.9% (price as of 2026-08-21) |
| Aug. 14, 2017 | LNTH | S | 1,788 | $18.05 | $32,273 | 933,272 Indirect | -0.19% | Disposed | 455.7% (price as of 2026-08-21) |
| Aug. 14, 2017 | LNTH | S | 10,493 | $17.29 | $181,424 | 935,060 Indirect | -1.11% | Disposed | 480.1% (price as of 2026-08-21) |
| Aug. 14, 2017 | LNTH | S | 11,012 | $18.05 | $198,767 | 3,510,180 Indirect | -0.31% | Disposed | 455.7% (price as of 2026-08-21) |
| Aug. 14, 2017 | LNTH | S | 64,646 | $17.29 | $1,117,729 | 3,521,192 Indirect | -1.80% | Disposed | 480.1% (price as of 2026-08-21) |
| June 20, 2017 | LNTH | S | 840,000 | $14.87 | $12,490,800 | 1,762,208 Indirect | -32.28% | Disposed | 574.5% (price as of 2026-08-21) |
| June 20, 2017 | LNTH | S | 450,721 | $14.87 | $6,702,221 | 945,553 Indirect | -32.28% | Disposed | 574.5% (price as of 2026-08-21) |
| June 20, 2017 | LNTH | S | 1,709,279 | $14.87 | $25,416,979 | 3,585,838 Indirect | -32.28% | Disposed | 574.5% (price as of 2026-08-21) |
| May 9, 2017 | LNTH | S | 840,000 | $13.40 | $11,256,000 | 2,602,208 Indirect | -24.40% | Disposed | 648.5% (price as of 2026-08-21) |
| May 9, 2017 | LNTH | S | 450,722 | $13.40 | $6,039,675 | 1,396,274 Indirect | -24.40% | Disposed | 648.5% (price as of 2026-08-21) |
| May 9, 2017 | LNTH | S | 1,709,278 | $13.40 | $22,904,325 | 5,295,117 Indirect | -24.40% | Disposed | 648.5% (price as of 2026-08-21) |
| April 12, 2017 | ANGO | S | 384,184 | $16.00 | $6,146,944 | 381,406 Indirect | -50.18% | Disposed | -2.1% (price as of 2026-08-21) |
| April 12, 2017 | ANGO | S | 508,869 | $16.00 | $8,141,904 | 505,189 Indirect | -50.18% | Disposed | -2.1% (price as of 2026-08-21) |
| April 12, 2017 | ANGO | S | 1,456,947 | $16.00 | $23,311,152 | 1,446,413 Indirect | -50.18% | Disposed | -2.1% (price as of 2026-08-21) |
| March 17, 2017 | LNTH | S | 840,000 | $12.20 | $10,248,000 | 3,442,208 Indirect | -19.62% | Disposed | 722.1% (price as of 2026-08-21) |
| March 17, 2017 | LNTH | S | 450,722 | $12.20 | $5,498,808 | 1,846,996 Indirect | -19.62% | Disposed | 722.1% (price as of 2026-08-21) |
| March 17, 2017 | LNTH | S | 1,709,278 | $12.20 | $20,853,192 | 7,004,395 Indirect | -19.62% | Disposed | 722.1% (price as of 2026-08-21) |
| Nov. 21, 2016 | LNTH | S | 700,000 | $9.00 | $6,300,000 | 4,282,208 Indirect | -14.05% | Disposed | 1014.4% (price as of 2026-08-21) |
| Nov. 21, 2016 | LNTH | S | 375,601 | $9.00 | $3,380,409 | 2,297,718 Indirect | -14.05% | Disposed | 1014.4% (price as of 2026-08-21) |
| Nov. 21, 2016 | LNTH | S | 1,424,399 | $9.00 | $12,819,591 | 8,713,673 Indirect | -14.05% | Disposed | 1014.4% (price as of 2026-08-21) |
| Nov. 18, 2016 | ANGO | S | 541,349 | $15.68 | $8,488,352 | 1,014,058 Indirect | -34.80% | Disposed | -0.1% (price as of 2026-08-21) |
| Nov. 18, 2016 | ANGO | S | 1,549,945 | $15.68 | $24,303,138 | 2,903,360 Indirect | -34.80% | Disposed | -0.1% (price as of 2026-08-21) |
| Aug. 5, 2016 | ANGO | S | 487,214 | $14.62 | $7,123,069 | 1,555,407 Indirect | -23.85% | Disposed | 7.1% (price as of 2026-08-21) |
| Aug. 5, 2016 | ANGO | S | 367,836 | $14.62 | $5,377,762 | 1,174,296 Indirect | -23.85% | Disposed | 7.1% (price as of 2026-08-21) |
| Aug. 5, 2016 | ANGO | S | 1,394,950 | $14.62 | $20,394,169 | 4,453,305 Indirect | -23.85% | Disposed | 7.1% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| July 27, 2016 | ANGO | Non-Qualified Stock Option (right to buy) | Common Stock (5,945) | $16.59 | July 27, 2023 | 5,945 | Acquired |
| July 22, 2015 | ANGO | Non-Qualified Stock Option (right to buy) | Common Stock (6,022) | $15.95 | July 22, 2022 | 6,022 | Acquired |
| Aug. 12, 2014 | ANGO | Non-Qualified Stock Option (right to buy) | Common Stock (5,726) | $14.64 | Aug. 12, 2021 | 5,726 | Acquired |
| Aug. 6, 2013 | ANGO | Non-Qualified Stock Option (right to buy) | Common Stock (7,000) | $11.92 | Aug. 6, 2020 | 7,000 | Acquired |
| Aug. 7, 2012 | ANGO | Non-Qualified Stock Option (right to buy) | Common Stock (6,650) | $10.68 | Aug. 7, 2019 | 6,650 | Acquired |
| May 22, 2012 | ANGO | Employee Stock Option (right to buy) | Common Stock (25,000) | $12.34 | May 22, 2019 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| June 24, 2015 | LNTH | Common Stock | 17,793,599 | Indirect |
| May 23, 2012 | ANGO | Common Stock, $0.01 par value per share | 5,848,255 | Indirect |
| May 23, 2012 | ANGO | Common Stock, $0.01 par value per share | 1,542,132 | Indirect |
| May 23, 2012 | ANGO | Common Stock, $0.01 par value per share | 2,042,621 | Indirect |