DUFFY MICHAEL P

Insider

First SEC filing: June 24, 2015 · Latest: June 24, 2015

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

LNTH selling April 16, 2021

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 26 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

26 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
April 16, 2021	LNTH	S 10b5-1	7,500	$21.75	$163,125	109,472 Direct	-6.41%	Disposed	363.7% (price as of 2026-08-18)
March 8, 2021	LNTH	S 10b5-1	5,032	$19.16	$96,413	116,972 Direct	-4.12%	Disposed	426.4% (price as of 2026-08-18)
March 4, 2021	LNTH	A	27,056	—	—	122,004 Direct	+28.50%	Acquired	(price as of 2026-08-18)
March 4, 2021	LNTH	S 10b5-1	1,737	$18.40	$31,961	94,948 Direct	-1.80%	Disposed	448.1% (price as of 2026-08-18)
March 1, 2021	LNTH	S 10b5-1	1,473	$19.08	$28,105	101,929 Direct	-1.42%	Disposed	428.6% (price as of 2026-08-18)
Dec. 9, 2020	LNTH	S 10b5-1	15,000	$14.00	$210,000	103,402 Direct	-12.67%	Disposed	620.4% (price as of 2026-08-18)
Oct. 6, 2020	LNTH	S 10b5-1	15,000	$14.00	$210,000	118,402 Direct	-11.24%	Disposed	620.4% (price as of 2026-08-18)
April 28, 2020	LNTH	S 10b5-1	7,198	$13.13	$94,510	133,402 Direct	-5.12%	Disposed	668.1% (price as of 2026-08-18)
March 6, 2020	LNTH	S 10b5-1	1,936	$14.58	$28,227	140,600 Direct	-1.36%	Disposed	591.7% (price as of 2026-08-18)
March 3, 2020	LNTH	A	26,043	—	—	142,536 Direct	+22.36%	Acquired	(price as of 2026-08-18)
Feb. 27, 2020	LNTH	S 10b5-1	1,552	$15.79	$24,506	116,493 Direct	-1.31%	Disposed	538.7% (price as of 2026-08-18)
Feb. 25, 2020	LNTH	S 10b5-1	6,563	$16.85	$110,587	118,045 Direct	-5.27%	Disposed	498.5% (price as of 2026-08-18)
Feb. 19, 2020	LNTH	A	718	—	—	124,608 Direct	+0.58%	Acquired	(price as of 2026-08-18)
Nov. 14, 2019	LNTH	S 10b5-1	7,500	$20.79	$155,925	123,890 Direct	-5.71%	Disposed	385.1% (price as of 2026-08-18)
Sept. 12, 2019	LNTH	S 10b5-1	7,500	$23.74	$178,050	131,390 Direct	-5.40%	Disposed	324.8% (price as of 2026-08-18)
Sept. 4, 2019	LNTH	S 10b5-1	5,604	$20.60	$115,442	138,890 Direct	-3.88%	Disposed	389.6% (price as of 2026-08-18)
July 10, 2019	LNTH	S 10b5-1	8,819	$28.14	$248,167	144,494 Direct	-5.75%	Disposed	258.4% (price as of 2026-08-18)
April 29, 2019	LNTH	S 10b5-1	6,908	$24.84	$171,595	153,313 Direct	-4.31%	Disposed	306.0% (price as of 2026-08-18)
March 6, 2019	LNTH	S 10b5-1	1,789	$22.77	$40,736	160,221 Direct	-1.10%	Disposed	342.9% (price as of 2026-08-18)
Feb. 27, 2019	LNTH	S 10b5-1	2,360	$23.17	$54,681	162,010 Direct	-1.44%	Disposed	335.3% (price as of 2026-08-18)
Feb. 26, 2019	LNTH	A	20,044	—	—	164,370 Direct	+13.89%	Acquired	(price as of 2026-08-18)
Jan. 31, 2019	LNTH	S 10b5-1	7,651	$16.48	$126,088	144,326 Direct	-5.03%	Disposed	512.0% (price as of 2026-08-18)
Sept. 4, 2018	LNTH	F	5,501	$15.55	$85,541	151,977 Direct	-3.49%	Disposed	548.6% (price as of 2026-08-18)
April 26, 2018	LNTH	F	6,681	$17.90	$119,590	157,478 Direct	-4.07%	Disposed	463.4% (price as of 2026-08-18)
April 3, 2018	LNTH	M 10b5-1	27,313	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
April 3, 2018	LNTH	S 10b5-1	27,313	$15.30	$417,889	164,159 Direct	-14.26%	Disposed	559.2% (price as of 2026-08-18)
April 3, 2018	LNTH	M 10b5-1	27,313	$5.62	$153,499	191,472 Direct	+16.64%	Acquired	1694.6% (price as of 2026-08-18)
March 14, 2018	LNTH	S 10b5-1	11,492	$16.60	$190,767	164,159 Direct	-6.54%	Disposed	507.6% (price as of 2026-08-18)
March 5, 2018	LNTH	A	24,967	—	—	175,651 Direct	+16.57%	Acquired	(price as of 2026-08-18)
Feb. 23, 2018	LNTH	F	1,617	$19.80	$32,017	150,684 Direct	-1.06%	Disposed	409.4% (price as of 2026-08-18)
Jan. 10, 2018	LNTH	M 10b5-1	17,172	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
Jan. 10, 2018	LNTH	M 10b5-1	4,483	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
Jan. 10, 2018	LNTH	S 10b5-1	21,655	$22.40	$485,072	152,301 Direct	-12.45%	Disposed	350.2% (price as of 2026-08-18)
Jan. 10, 2018	LNTH	M 10b5-1	17,172	$5.62	$96,507	173,956 Direct	+10.95%	Acquired	1694.6% (price as of 2026-08-18)
Jan. 10, 2018	LNTH	M 10b5-1	4,483	$5.62	$25,194	156,784 Direct	+2.94%	Acquired	1694.6% (price as of 2026-08-18)
Nov. 14, 2017	LNTH	S 10b5-1	11,917	$21.63	$257,765	152,301 Direct	-7.26%	Disposed	366.3% (price as of 2026-08-18)
Sept. 11, 2017	LNTH	M 10b5-1	20,000	—	—	4,484 Direct	-81.69%	Disposed	(price as of 2026-08-18)
Sept. 11, 2017	LNTH	S 10b5-1	20,000	$16.45	$329,000	164,218 Direct	-10.86%	Disposed	513.1% (price as of 2026-08-18)
Sept. 11, 2017	LNTH	M 10b5-1	20,000	$5.62	$112,400	184,218 Direct	+12.18%	Acquired	1694.6% (price as of 2026-08-18)
Sept. 1, 2017	LNTH	F	4,016	$16.80	$67,469	164,218 Direct	-2.39%	Disposed	500.3% (price as of 2026-08-18)
June 12, 2017	LNTH	M 10b5-1	20,000	—	—	24,484 Direct	-44.96%	Disposed	(price as of 2026-08-18)
June 12, 2017	LNTH	S 10b5-1	20,000	$15.42	$308,400	168,234 Direct	-10.63%	Disposed	554.1% (price as of 2026-08-18)
June 12, 2017	LNTH	M 10b5-1	20,000	$5.62	$112,400	188,234 Direct	+11.89%	Acquired	1694.6% (price as of 2026-08-18)
April 26, 2017	LNTH	F	5,030	—	—	168,234 Direct	-2.90%	Disposed	(price as of 2026-08-18)
Feb. 23, 2017	LNTH	A	32,936	—	—	173,264 Direct	+23.47%	Acquired	(price as of 2026-08-18)
Jan. 30, 2017	LNTH	F	6,301	$8.85	$55,764	140,328 Direct	-4.30%	Disposed	1039.6% (price as of 2026-08-18)
April 26, 2016	LNTH	A	62,000	—	—	150,645 Direct	+69.94%	Acquired	(price as of 2026-08-18)
Sept. 2, 2015	LNTH	A	49,500	—	—	88,645 Direct	+126.45%	Acquired	(price as of 2026-08-18)
June 25, 2015	LNTH	A	27,314	—	—	27,314 Direct	—	Acquired	(price as of 2026-08-18)
June 25, 2015	LNTH	D	27,314	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)

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
April 3, 2018	LNTH	Stock Option (right to buy)	Common Stock (27,313)	$5.62	April 4, 2018	27,313	Disposed
Jan. 10, 2018	LNTH	Stock Option (right to buy)	Common Stock (17,172)	$5.62	April 4, 2018	17,172	Disposed
Jan. 10, 2018	LNTH	Stock Option (right to buy)	Common Stock (4,483)	$5.62	April 4, 2018	4,483	Disposed
Sept. 11, 2017	LNTH	Stock Option (right to buy)	Common Stock (20,000)	$5.62	Jan. 18, 2018	20,000	Disposed
June 12, 2017	LNTH	Stock Option (right to buy)	Common Stock (20,000)	$5.62	Jan. 8, 2018	20,000	Disposed
June 25, 2015	LNTH	Stock Option (right to buy)	Common Stock (27,314)	$5.62	April 4, 2018	27,314	Acquired
June 25, 2015	LNTH	Stock Option (right to buy)	Common Stock (27,314)	$5.62	April 4, 2018	27,314	Disposed

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	39,145	Direct
June 24, 2015	LNTH	Stock Option (right to buy)→ Common Stock (44,484)	44,484	Direct
June 24, 2015	LNTH	Stock Option (right to buy)→ Common Stock (17,170)	17,170	Direct
June 24, 2015	LNTH	Stock Option (right to buy)→ Common Stock (24,911)	24,911	Direct