Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 35 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

35 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 5, 2019 LNTH S 10b5-1 10,000 $24.71 $247,100 16,994 Direct -37.05% Disposed 304.5% (price as of 2026-10-02)
June 4, 2019 LNTH S 10b5-1 1,080 $24.61 $26,579 26,994 Direct -3.85% Disposed 306.2% (price as of 2026-10-02)
June 4, 2019 LNTH S 10b5-1 8,920 $24.11 $215,061 28,074 Direct -24.11% Disposed 314.6% (price as of 2026-10-02)
June 3, 2019 LNTH S 10b5-1 10,000 $23.47 $234,700 36,994 Direct -21.28% Disposed 325.9% (price as of 2026-10-02)
April 1, 2019 LNTH S 10b5-1 10,000 $24.41 $244,100 46,994 Direct -17.55% Disposed 309.5% (price as of 2026-10-02)
Dec. 29, 2017 ALT P 38,699 $1.93 $74,689 589,453 Direct +7.03% Acquired -95.3% (price as of 2026-10-02)
Dec. 28, 2017 ALT P 58,711 $1.92 $112,725 550,754 Direct +11.93% Acquired -95.3% (price as of 2026-10-02)
Dec. 27, 2017 ALT P 27,706 $1.77 $49,040 492,043 Direct +5.97% Acquired -94.8% (price as of 2026-10-02)
Dec. 27, 2017 ALT P 50,000 $1.76 $88,000 464,337 Direct +12.07% Acquired -94.8% (price as of 2026-10-02)
Dec. 26, 2017 ALT P 51,442 $1.81 $93,110 414,337 Direct +14.18% Acquired -95.0% (price as of 2026-10-02)
Dec. 22, 2017 ALT P 17,982 $1.61 $28,951 362,895 Direct +5.21% Acquired -94.3% (price as of 2026-10-02)
Dec. 7, 2017 ALT P 7,639 $1.74 $13,292 344,913 Direct +2.26% Acquired -94.8% (price as of 2026-10-02)
Dec. 6, 2017 ALT P 16,106 $1.80 $28,991 337,274 Direct +5.01% Acquired -94.9% (price as of 2026-10-02)
Dec. 5, 2017 ALT P 13,495 $1.78 $24,021 321,168 Direct +4.39% Acquired -94.9% (price as of 2026-10-02)
Dec. 4, 2017 ALT P 7,300 $1.81 $13,213 307,673 Direct +2.43% Acquired -95.0% (price as of 2026-10-02)
Dec. 1, 2017 ALT P 5,215 $1.80 $9,387 300,373 Direct +1.77% Acquired -94.9% (price as of 2026-10-02)
Nov. 30, 2017 ALT P 12,978 $1.84 $23,880 295,158 Direct +4.60% Acquired -95.0% (price as of 2026-10-02)
Nov. 29, 2017 ALT P 7,942 $1.94 $15,407 282,180 Direct +2.90% Acquired -95.3% (price as of 2026-10-02)
Nov. 28, 2017 ALT P 12,395 $1.97 $24,418 274,238 Direct +4.73% Acquired -95.4% (price as of 2026-10-02)
Nov. 27, 2017 ALT P 10,042 $2.00 $20,084 261,843 Direct +3.99% Acquired -95.4% (price as of 2026-10-02)
Nov. 24, 2017 ALT P 6,505 $2.02 $13,140 251,801 Direct +2.65% Acquired -95.5% (price as of 2026-10-02)
Nov. 22, 2017 ALT P 5,261 $2.10 $11,048 245,296 Direct +2.19% Acquired -95.7% (price as of 2026-10-02)
Nov. 21, 2017 ALT P 7,236 $2.06 $14,906 240,035 Direct +3.11% Acquired -95.6% (price as of 2026-10-02)
Nov. 20, 2017 ALT P 4,800 $2.07 $9,936 232,799 Direct +2.11% Acquired -95.6% (price as of 2026-10-02)
Nov. 17, 2017 ALT P 6,295 $2.12 $13,345 227,999 Direct +2.84% Acquired -95.7% (price as of 2026-10-02)
Sept. 13, 2017 LNTH S 5,000 $17.50 $87,500 43,730 Direct -10.26% Disposed 471.2% (price as of 2026-10-02)
Sept. 12, 2017 LNTH S 10,000 $17.50 $175,000 48,730 Direct -17.03% Disposed 471.2% (price as of 2026-10-02)
Aug. 25, 2017 ALT P 50,000 $2.25 $112,500 221,704 Direct +29.12% Acquired -95.9% (price as of 2026-10-02)
Aug. 24, 2017 ALT P 17,326 $2.24 $38,810 171,704 Direct +11.22% Acquired -95.9% (price as of 2026-10-02)
Aug. 23, 2017 ALT P 43,352 $2.22 $96,241 154,378 Direct +39.05% Acquired -95.9% (price as of 2026-10-02)
Aug. 22, 2017 ALT P 5,958 $2.10 $12,512 111,026 Direct +5.67% Acquired -95.7% (price as of 2026-10-02)
Aug. 21, 2017 ALT P 690 $2.02 $1,394 105,068 Direct +0.66% Acquired -95.5% (price as of 2026-10-02)
May 12, 2017 LNTH S 5,000 $16.55 $82,750 58,730 Direct -7.85% Disposed 504.0% (price as of 2026-10-02)
May 10, 2017 LNTH S 10,000 $15.75 $157,500 63,730 Direct -13.56% Disposed 534.7% (price as of 2026-10-02)
May 9, 2017 LNTH S 10,000 $14.75 $147,500 73,730 Direct -11.94% Disposed 577.7% (price as of 2026-10-02)
Aug. 25, 2011 ALT P 0 · · 0 Direct · Acquired (price as of 2026-10-02)
Aug. 25, 2011 ALT P 16,800 $0.70 $11,760 1,055,413 Direct +1.62% Acquired -87.0% (price as of 2026-10-02)
Aug. 24, 2011 ALT P 0 · · 0 Direct · Acquired (price as of 2026-10-02)
Aug. 24, 2011 ALT P 20,902 $0.70 $14,631 1,038,613 Direct +2.05% Acquired -87.0% (price as of 2026-10-02)
May 19, 2011 ALT S 142,497 $3.68 $524,389 1,017,711 Indirect -12.28% Disposed -97.5% (price as of 2026-10-02)
May 18, 2011 ALT S 50,000 $3.68 $184,000 1,160,208 Direct -4.13% Disposed -97.5% (price as of 2026-10-02)
May 17, 2011 ALT S 75,000 $3.71 $278,250 1,210,208 Direct -5.84% Disposed -97.5% (price as of 2026-10-02)
May 18, 2010 ALT P 83,253 $1.50 $124,880 841,164 Direct +10.98% Acquired -93.9% (price as of 2026-10-02)
May 17, 2010 ALT P 16,747 $1.42 $23,781 757,911 Direct +2.26% Acquired -93.6% (price as of 2026-10-02)
Dec. 11, 2009 ALT P 50,000 $1.20 $60,000 741,164 Direct +7.23% Acquired -92.4% (price as of 2026-10-02)
March 26, 2009 ALT S 17,735 · · 591,164 Direct -2.91% Disposed (price as of 2026-10-02)
March 12, 2009 ALT S 212,814 · · 608,899 Direct -25.90% Disposed (price as of 2026-10-02)
Aug. 7, 2007 ALT P 40,000 $7.70 $308,000 1,022,000 Direct +4.07% Acquired -98.8% (price as of 2026-10-02)
Aug. 3, 2007 ALT P 100,000 $7.55 $755,000 1,082,000 Direct +10.18% Acquired -98.8% (price as of 2026-10-02)
May 16, 2007 ALT P 10b5-1 10,000 $7.54 $75,400 982,000 Direct +1.03% Acquired -98.8% (price as of 2026-10-02)
May 15, 2007 ALT P 10b5-1 10,000 $7.54 $75,400 972,000 Direct +1.04% Acquired -98.8% (price as of 2026-10-02)
May 14, 2007 ALT P 10b5-1 10,000 $7.54 $75,400 962,000 Direct +1.05% Acquired -98.8% (price as of 2026-10-02)
May 11, 2007 ALT P 10b5-1 10,000 $7.55 $75,500 952,000 Direct +1.06% Acquired -98.8% (price as of 2026-10-02)
May 10, 2007 ALT P 10b5-1 10,000 $7.55 $75,500 942,000 Direct +1.07% Acquired -98.8% (price as of 2026-10-02)
May 9, 2007 ALT P 10b5-1 10,000 $7.54 $75,400 932,000 Direct +1.08% Acquired -98.8% (price as of 2026-10-02)
May 8, 2007 ALT P 10b5-1 10,000 $7.55 $75,500 922,000 Direct +1.10% Acquired -98.8% (price as of 2026-10-02)
May 7, 2007 ALT P 10b5-1 10,000 $7.55 $75,500 912,000 Direct +1.11% Acquired -98.8% (price as of 2026-10-02)
May 4, 2007 ALT P 10b5-1 10,000 $7.55 $75,500 902,000 Direct +1.12% Acquired -98.8% (price as of 2026-10-02)
May 3, 2007 ALT P 10b5-1 10,000 $7.55 $75,500 892,000 Direct +1.13% Acquired -98.8% (price as of 2026-10-02)
Dec. 19, 2005 ALT P 10b5-1 10,000 $1.20 $12,000 141,960 Direct +7.58% Acquired -92.4% (price as of 2026-10-02)
Dec. 15, 2005 ALT P 10b5-1 600 $1.20 $720 131,960 Direct +0.46% Acquired -92.4% (price as of 2026-10-02)
Dec. 14, 2005 ALT P 10b5-1 4,000 $1.20 $4,800 131,360 Direct +3.14% Acquired -92.4% (price as of 2026-10-02)
Dec. 13, 2005 ALT P 10b5-1 7,160 $1.14 $8,162 127,360 Direct +5.96% Acquired -92.0% (price as of 2026-10-02)
Dec. 12, 2005 ALT P 10b5-1 4,000 $1.13 $4,520 120,200 Direct +3.44% Acquired -91.9% (price as of 2026-10-02)
Dec. 5, 2005 ALT P 10b5-1 7,320 $1.12 $8,198 116,200 Direct +6.72% Acquired -91.9% (price as of 2026-10-02)

Showing latest 100 of 107 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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Oct. 13, 2017 ALT Stock Options (option to buy) Common Stock, par value $0.0001 (20,000) $2.50 Oct. 13, 2027 20,000 Acquired
Jan. 13, 2017 ALT Stock option (right to buy) Common Stock (20,000) $2.20 May 31, 2026 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (20,000) $1.69 Aug. 1, 2025 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (20,000) $1.51 June 17, 2024 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (20,000) $1.64 June 11, 2023 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (20,000) $1.45 June 22, 2022 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (20,000) $1.60 June 23, 2020 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (20,000) $2.47 Aug. 5, 2019 20,000 Disposed
Sept. 30, 2016 ALT Stock option (right to buy) Common Stock (10,000) $2.59 June 13, 2018 10,000 Disposed
June 1, 2016 ALT Stock option (right to buy) Common Stock (20,000) $2.20 May 31, 2026 20,000 Acquired
Aug. 2, 2015 ALT Stock option (right to buy) Common Stock (20,000) $1.69 Aug. 1, 2025 20,000 Acquired
June 18, 2014 ALT Stock option (right to buy) Common Stock (20,000) $1.51 June 17, 2024 20,000 Acquired
June 11, 2013 ALT Stock option (right to buy) Common Stock (20,000) $1.64 June 11, 2023 20,000 Acquired
June 22, 2012 ALT Stock option (right to buy) Common Stock (20,000) $1.45 June 22, 2022 20,000 Acquired
June 23, 2011 ALT Stock option (right to buy) Common Stock (20,000) $3.11 June 23, 2021 20,000 Acquired
Nov. 24, 2010 ALT 10% Convertible Note Common Stock (444,044) $2.54 July 28, 2011 · Disposed
June 23, 2010 ALT Stock option (right to buy) Common Stock (20,000) $1.60 June 23, 2020 20,000 Acquired
Aug. 5, 2009 ALT Stock Option (right to buy) Common Stock (20,000) $2.47 Aug. 5, 2019 20,000 Acquired
July 28, 2009 ALT Common Stock Warrant Common Stock (133,333) $2.50 Jan. 28, 2015 133,333 Acquired
July 28, 2009 ALT 10% Unsecured Convertible Note Common Stock (393,442) $2.54 July 28, 2011 · Acquired
March 9, 2009 ALT Stock option (right to buy) Common Stock (10,000) $2.59 June 13, 2018 10,000 Acquired
Dec. 19, 2005 ALT Warrants [F1] Common Stock (10,000) $6.00 July 27, 2009 10,000 Acquired
Dec. 15, 2005 ALT Warrants [F1] Common Stock (600) $6.00 July 27, 2009 600 Acquired
Dec. 14, 2005 ALT Warrants [F1] Common Stock (4,000) $6.00 July 27, 2009 4,000 Acquired
Dec. 13, 2005 ALT Warrants [F1] Common Stock (7,160) $6.00 July 27, 2009 7,160 Acquired
Dec. 12, 2005 ALT Warrants [F1] Common Stock (4,000) $6.00 July 27, 2009 4,000 Acquired
Dec. 6, 2005 ALT Warrant [F1] Common Stock (11,600) $6.00 July 27, 2009 11,600 Acquired
Dec. 5, 2005 ALT Warrants [F1] Common Stock (7,320) $6.00 July 27, 2009 7,320 Acquired
Dec. 5, 2005 ALT Warrants [F1] Common Stock (13,840) $6.00 July 27, 2009 13,840 Acquired
Dec. 5, 2005 ALT Warrant [F1] Common Stock (14,000) $6.00 July 27, 2009 14,000 Acquired
Dec. 2, 2005 ALT Warrants [F1] Common Stock (10,000) $6.00 July 27, 2009 10,000 Acquired
Dec. 1, 2005 ALT Warrants [F1] Common Stock (20,000) $6.00 July 27, 2009 20,000 Acquired
Nov. 30, 2005 ALT Warrants [F1] Common Stock (20,000) $6.00 July 27, 2009 20,000 Acquired
Nov. 29, 2005 ALT Warrants [F1] Common Stock (19,440) $6.00 July 27, 2009 19,440 Acquired

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

Initial ownership (Form 3) 5 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
March 8, 2016 LNTH Common Stock 50,000 Direct
June 27, 2008 ALT Common Stock [F1] 1,122,000 Direct
June 27, 2008 ALT Warrants→ Common Stock (141,960) 141,960 Direct
June 27, 2008 ALT Options to Purchase→ Common Stock · Direct
Aug. 1, 2005 ALT Common Stock 882,000 Direct