Joel Lewis

Insider

First SEC filing: Dec. 18, 2017 · Latest: Dec. 18, 2017

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

GALT selling Jan. 6, 2026

Insider transactions

0 buys (P) 11 sells (S) Net: $-709,920 + 86 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

86 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 16, 2026	GALT	A	91,000	—	—	91,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 16, 2026	GALT	A	120,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 16, 2026	GALT	A	84,000	—	—	65,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 6, 2026	GALT	S 10b5-1	37,698	$3.58	$134,959	832,592 Direct	-4.33%	Disposed	-0.1% (price as of 2026-08-20)
Jan. 5, 2026	GALT	S 10b5-1	27,731	$3.91	$108,428	870,290 Direct	-3.09%	Disposed	-8.6% (price as of 2026-08-20)
Jan. 2, 2026	GALT	M	84,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 2, 2026	GALT	S 10b5-1	18,571	$4.20	$77,998	898,021 Direct	-2.03%	Disposed	-14.9% (price as of 2026-08-20)
Jan. 2, 2026	GALT	M	84,000	—	—	916,592 Direct	+10.09%	Acquired	(price as of 2026-08-20)
Dec. 17, 2025	GALT	M 10b5-1	7,829	—	—	32,171 Direct	-19.57%	Disposed	(price as of 2026-08-20)
Dec. 17, 2025	GALT	S 10b5-1	7,829	$7.06	$55,273	832,592 Direct	-0.93%	Disposed	-49.4% (price as of 2026-08-20)
Dec. 17, 2025	GALT	M 10b5-1	7,829	$2.86	$22,391	840,421 Direct	+0.94%	Acquired	25.0% (price as of 2026-08-20)
Nov. 18, 2025	GALT	M 10b5-1	6,783	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 18, 2025	GALT	S 10b5-1	6,783	$6.15	$41,715	832,592 Direct	-0.81%	Disposed	-41.9% (price as of 2026-08-20)
Nov. 18, 2025	GALT	M 10b5-1	6,783	$2.39	$16,211	839,375 Direct	+0.81%	Acquired	49.6% (price as of 2026-08-20)
Nov. 17, 2025	GALT	M 10b5-1	15,680	—	—	6,783 Direct	-69.80%	Disposed	(price as of 2026-08-20)
Nov. 17, 2025	GALT	S 10b5-1	15,680	$6.04	$94,707	832,592 Direct	-1.85%	Disposed	-40.8% (price as of 2026-08-20)
Nov. 17, 2025	GALT	M 10b5-1	15,680	$2.39	$37,475	848,272 Direct	+1.88%	Acquired	49.6% (price as of 2026-08-20)
Nov. 10, 2025	GALT	S 10b5-1	1,867	$6.03	$11,258	832,592 Direct	-0.22%	Disposed	-40.7% (price as of 2026-08-20)
Nov. 10, 2025	GALT	M 10b5-1	1,867	$2.39	$4,462	834,459 Direct	+0.22%	Acquired	49.6% (price as of 2026-08-20)
Nov. 5, 2025	GALT	M 10b5-1	1,867	—	—	22,363 Direct	-7.71%	Disposed	(price as of 2026-08-20)
Nov. 5, 2025	GALT	M 10b5-1	200	—	—	24,230 Direct	-0.82%	Disposed	(price as of 2026-08-20)
Nov. 5, 2025	GALT	S 10b5-1	200	$6.00	$1,200	832,592 Direct	-0.02%	Disposed	-40.4% (price as of 2026-08-20)
Nov. 5, 2025	GALT	M 10b5-1	200	$2.39	$478	832,792 Direct	+0.02%	Acquired	49.6% (price as of 2026-08-20)
Nov. 4, 2025	GALT	M 10b5-1	14,420	—	—	24,530 Direct	-37.02%	Disposed	(price as of 2026-08-20)
Nov. 4, 2025	GALT	S 10b5-1	14,420	$6.07	$87,529	832,592 Direct	-1.70%	Disposed	-41.1% (price as of 2026-08-20)
Nov. 4, 2025	GALT	M 10b5-1	14,420	$2.39	$34,464	847,012 Direct	+1.73%	Acquired	49.6% (price as of 2026-08-20)
Nov. 3, 2025	GALT	M 10b5-1	1,300	—	—	38,950 Direct	-3.23%	Disposed	(price as of 2026-08-20)
Nov. 3, 2025	GALT	S 10b5-1	1,300	$6.01	$7,813	832,592 Direct	-0.16%	Disposed	-40.5% (price as of 2026-08-20)
Nov. 3, 2025	GALT	M 10b5-1	1,300	$2.39	$3,107	833,892 Direct	+0.16%	Acquired	49.6% (price as of 2026-08-20)
Sept. 12, 2025	GALT	M	14,000	$2.39	$33,460	40,250 Direct	-25.81%	Disposed	49.6% (price as of 2026-08-20)
Sept. 12, 2025	GALT	S 10b5-1	14,000	$6.36	$89,040	832,592 Direct	-1.65%	Disposed	-43.8% (price as of 2026-08-20)
Sept. 12, 2025	GALT	M 10b5-1	14,000	$2.39	$33,460	846,592 Direct	+1.68%	Acquired	49.6% (price as of 2026-08-20)
March 3, 2025	GALT	A	56,420	$1.57	$88,579	832,592 Direct	-6.35%	Disposed	127.7% (price as of 2026-08-20)
Jan. 23, 2025	GALT	A	84,000	—	—	84,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2025	GALT	A	91,000	—	—	91,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 23, 2024	GALT	M	56,000	—	—	0 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 23, 2024	GALT	S 10b5-1	56,000	$0.89	$49,840	897,012 Direct	-5.88%	Disposed	301.7% (price as of 2026-08-20)
Dec. 23, 2024	GALT	M	56,000	—	—	953,012 Direct	+6.24%	Acquired	(price as of 2026-08-20)
April 24, 2024	GALT	P	1,000	$3.39	$3,390	2,000 Indirect	+100.00%	Acquired	5.5% (price as of 2026-08-20)
March 1, 2024	GALT	A	152,584	$1.96	$299,065	897,716 Direct	-14.53%	Disposed	82.4% (price as of 2026-08-20)
Jan. 24, 2024	GALT	A	56,000	—	—	56,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 24, 2024	GALT	A	91,000	—	—	91,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 29, 2023	GALT	A	11,606	$1.66	$19,266	1,042,300 Direct	+1.13%	Acquired	115.4% (price as of 2026-08-20)
Dec. 15, 2023	GALT	A	12,042	$1.60	$19,267	1,030,694 Direct	+1.18%	Acquired	123.4% (price as of 2026-08-20)
Nov. 30, 2023	GALT	A	9,880	$1.95	$19,266	1,018,652 Direct	+0.98%	Acquired	83.3% (price as of 2026-08-20)
Nov. 15, 2023	GALT	A	10,303	$1.87	$19,267	1,008,772 Direct	+1.03%	Acquired	91.2% (price as of 2026-08-20)
Oct. 31, 2023	GALT	A	9,444	$2.04	$19,266	998,469 Direct	+0.95%	Acquired	75.2% (price as of 2026-08-20)
Oct. 13, 2023	GALT	A	9,585	$2.01	$19,266	989,025 Direct	+0.98%	Acquired	77.9% (price as of 2026-08-20)
Oct. 13, 2023	GALT	A	10,035	$2.01	$20,170	989,025 Direct	+1.03%	Acquired	77.9% (price as of 2026-08-20)
Sept. 29, 2023	GALT	A	10,035	$1.92	$19,267	979,440 Direct	+1.04%	Acquired	86.2% (price as of 2026-08-20)
Sept. 15, 2023	GALT	A	10,947	$1.76	$19,267	969,405 Direct	+1.14%	Acquired	103.1% (price as of 2026-08-20)
Aug. 31, 2023	GALT	A	11,010	$1.75	$19,268	958,458 Direct	+1.16%	Acquired	104.3% (price as of 2026-08-20)
Aug. 15, 2023	GALT	A	12,042	$1.60	$19,267	947,448 Direct	+1.29%	Acquired	123.4% (price as of 2026-08-20)
July 31, 2023	GALT	A	12,844	$1.50	$19,266	935,406 Direct	+1.39%	Acquired	138.3% (price as of 2026-08-20)
July 14, 2023	GALT	A	11,820	$1.63	$19,267	922,562 Direct	+1.30%	Acquired	119.3% (price as of 2026-08-20)
June 30, 2023	GALT	A	13,380	$1.44	$19,267	911 Direct	—	Acquired	148.3% (price as of 2026-08-20)
June 15, 2023	GALT	A	13,196	$1.46	$19,266	897,362 Direct	+1.49%	Acquired	144.9% (price as of 2026-08-20)
May 31, 2023	GALT	A	12,272	$1.57	$19,267	884,166 Direct	+1.41%	Acquired	127.7% (price as of 2026-08-20)
May 15, 2023	GALT	A	11,748	$1.64	$19,267	871,894 Direct	+1.37%	Acquired	118.0% (price as of 2026-08-20)
April 28, 2023	GALT	A	10,947	$1.76	$19,267	860,146 Direct	+1.29%	Acquired	103.1% (price as of 2026-08-20)
April 14, 2023	GALT	A	9,585	$2.01	$19,266	849,199 Direct	+1.14%	Acquired	77.9% (price as of 2026-08-20)
March 31, 2023	GALT	A	9,175	$2.10	$19,268	839,614 Direct	+1.10%	Acquired	70.2% (price as of 2026-08-20)
March 15, 2023	GALT	A	10,140	$1.90	$19,266	830,439 Direct	+1.24%	Acquired	88.2% (price as of 2026-08-20)
March 1, 2023	GALT	F	75,529	$2.07	$156,345	820,299 Direct	-8.43%	Disposed	72.7% (price as of 2026-08-20)
Feb. 28, 2023	GALT	A	9,308	$2.07	$19,268	895,828 Direct	+1.05%	Acquired	72.7% (price as of 2026-08-20)
Feb. 16, 2023	GALT	P	1,000	$1.52	$1,520	1,000 Indirect	—	Acquired	135.2% (price as of 2026-08-20)
Feb. 15, 2023	GALT	A	13,380	$1.44	$19,267	886,520 Direct	+1.53%	Acquired	148.3% (price as of 2026-08-20)
Feb. 7, 2023	GALT	A	143,836	$1.43	$205,685	873,140 Direct	+19.72%	Acquired	150.0% (price as of 2026-08-20)
Jan. 31, 2023	GALT	A	15,086	$1.16	$17,500	729,304 Direct	+2.11%	Acquired	208.2% (price as of 2026-08-20)
Jan. 26, 2023	GALT	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 13, 2023	GALT	A	15,351	$1.14	$17,500	714,218 Direct	+2.20%	Acquired	213.6% (price as of 2026-08-20)
Dec. 30, 2022	GALT	A	15,487	$1.13	$17,500	698,867 Direct	+2.27%	Acquired	216.4% (price as of 2026-08-20)
Dec. 15, 2022	GALT	A	15,086	$1.16	$17,500	683,380 Direct	+2.26%	Acquired	208.2% (price as of 2026-08-20)
Nov. 30, 2022	GALT	A	13,780	$1.27	$17,501	668,294 Direct	+2.11%	Acquired	181.5% (price as of 2026-08-20)
Nov. 15, 2022	GALT	A	14,113	$1.24	$17,500	654,514 Direct	+2.20%	Acquired	188.3% (price as of 2026-08-20)
Oct. 31, 2022	GALT	A	12,681	$1.38	$17,500	640,401 Direct	+2.02%	Acquired	159.1% (price as of 2026-08-20)
Oct. 14, 2022	GALT	A	10,802	$1.62	$17,499	627,720 Direct	+1.75%	Acquired	120.7% (price as of 2026-08-20)
Sept. 30, 2022	GALT	A	10,736	$1.63	$17,500	616,918 Direct	+1.77%	Acquired	119.3% (price as of 2026-08-20)
Sept. 30, 2022	GALT	A	10,736	$1.79	$19,217	616,918 Direct	+1.77%	Acquired	99.7% (price as of 2026-08-20)
Sept. 15, 2022	GALT	A	9,777	$1.79	$17,501	606,182 Direct	+1.64%	Acquired	99.7% (price as of 2026-08-20)
Aug. 31, 2022	GALT	A	9,211	$1.90	$17,501	596,405 Direct	+1.57%	Acquired	88.2% (price as of 2026-08-20)
Aug. 15, 2022	GALT	A	8,028	$2.18	$17,501	587,194 Direct	+1.39%	Acquired	64.0% (price as of 2026-08-20)
July 29, 2022	GALT	A	7,743	$2.26	$17,499	552,139 Direct	+1.42%	Acquired	58.2% (price as of 2026-08-20)
July 29, 2022	GALT	A	10,606	$2.26	$23,970	552,139 Direct	+1.96%	Acquired	58.2% (price as of 2026-08-20)
July 15, 2022	GALT	A	10,606	$1.65	$17,500	544,396 Direct	+1.99%	Acquired	116.7% (price as of 2026-08-20)
June 30, 2022	GALT	A	13,359	$1.31	$17,500	533,790 Direct	+2.57%	Acquired	172.9% (price as of 2026-08-20)
June 15, 2022	GALT	A	13,780	$1.29	$17,776	520,431 Direct	+2.72%	Acquired	177.1% (price as of 2026-08-20)
May 31, 2022	GALT	A	13,566	$1.29	$17,500	506,651 Direct	+2.75%	Acquired	177.1% (price as of 2026-08-20)
May 13, 2022	GALT	A	12,868	$1.36	$17,500	493,085 Direct	+2.68%	Acquired	162.9% (price as of 2026-08-20)
April 29, 2022	GALT	A	11,290	$1.55	$17,500	480,217 Direct	+2.41%	Acquired	130.6% (price as of 2026-08-20)
April 15, 2022	GALT	A	10,057	$1.74	$17,499	468,927 Direct	+2.19%	Acquired	105.5% (price as of 2026-08-20)
March 31, 2022	GALT	A	10,870	$1.61	$17,501	458,870 Direct	+2.43%	Acquired	122.0% (price as of 2026-08-20)
March 15, 2022	GALT	A	10,057	$1.74	$17,499	448,000 Direct	+2.30%	Acquired	105.5% (price as of 2026-08-20)
Feb. 28, 2022	GALT	A	9,358	$1.87	$17,499	438 Direct	—	Acquired	91.2% (price as of 2026-08-20)
Feb. 15, 2022	GALT	A	8,454	$2.07	$17,500	428,585 Direct	+2.01%	Acquired	72.7% (price as of 2026-08-20)
Jan. 31, 2022	GALT	A	112,263	$1.93	$216,668	420,131 Direct	+36.46%	Acquired	85.2% (price as of 2026-08-20)
Jan. 24, 2022	GALT	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 14, 2022	GALT	A	8,251	$2.02	$16,667	307,868 Direct	+2.75%	Acquired	77.0% (price as of 2026-08-20)
Dec. 31, 2021	GALT	A	8,052	$2.07	$16,668	299,617 Direct	+2.76%	Acquired	72.7% (price as of 2026-08-20)
Dec. 15, 2021	GALT	A	7,407	$2.25	$16,666	291,565 Direct	+2.61%	Acquired	58.9% (price as of 2026-08-20)

Showing latest 100 of 148 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
Jan. 16, 2026	GALT	Stock option (right to buy) [F1]	Common Stock (91,000)	$3.04	Jan. 16, 2036	91,000	Acquired
Jan. 16, 2026	GALT	Restricted Stock Unit [F1]	Common Stock (120,000)	—	—	120,000	Acquired
Jan. 16, 2026	GALT	Stock option (right to buy) [F1]	Common Stock (84,000)	$3.04	Jan. 16, 2036	84,000	Acquired
Jan. 2, 2026	GALT	Restricted Stock Unit	Common Stock (84,000)	—	—	84,000	Disposed
Dec. 17, 2025	GALT	Stock option (right to buy)	Common Stock (7,829)	$2.86	Jan. 9, 2030	7,829	Disposed
Nov. 18, 2025	GALT	Stock option (right to buy)	Common Stock (6,783)	$2.39	Dec. 14, 2027	6,783	Disposed
Nov. 17, 2025	GALT	Stock option (right to buy)	Common Stock (15,680)	$2.39	Dec. 14, 2027	15,680	Disposed
Nov. 5, 2025	GALT	Stock option (right to buy)	Common Stock (1,867)	$2.39	Dec. 14, 2027	1,867	Disposed
Nov. 5, 2025	GALT	Stock option (right to buy)	Common Stock (200)	$2.39	Dec. 14, 2027	200	Disposed
Nov. 4, 2025	GALT	Stock option (right to buy)	Common Stock (14,420)	$2.39	Dec. 14, 2027	14,420	Disposed
Nov. 3, 2025	GALT	Stock option (right to buy)	Common Stock (1,300)	$2.39	Dec. 14, 2027	1,300	Disposed
Sept. 12, 2025	GALT	Stock option (right to buy)	Common Stock (14,000)	$2.39	Dec. 14, 2027	14,000	Disposed
Jan. 23, 2025	GALT	Restricted Stock Unit	Common Stock (84,000)	—	—	84,000	Acquired
Jan. 23, 2025	GALT	Stock Option (right to buy) [F1]	Common Stock (91,000)	$1.23	Jan. 23, 2035	91,000	Acquired
Dec. 23, 2024	GALT	Restricted Stock Units [F3]	Common Stock (56,000)	—	—	56,000	Acquired
Jan. 24, 2024	GALT	Restricted Stock Unit	Common Stock (56,000)	—	—	56,000	Acquired
Jan. 24, 2024	GALT	Stock Option (right to buy) [F1]	Common Stock (91,000)	$1.72	Jan. 24, 2034	91,000	Acquired
Jan. 26, 2023	GALT	Stock Option (right to buy) [F1]	Common Stock (70,000)	$1.11	Jan. 26, 2033	70,000	Acquired
Jan. 24, 2022	GALT	Stock Option (right to buy) [F1]	Common Stock (70,000)	$1.98	Jan. 24, 2032	70,000	Acquired
March 25, 2021	GALT	Stock option (right to buy) [F1]	Common Stock (140,000)	$2.11	March 25, 2031	140,000	Acquired
March 25, 2021	GALT	Stock option (right to buy) [F1]	Common Stock (70,000)	$2.11	March 25, 2031	70,000	Acquired
Aug. 31, 2020	GALT	Stock option (right to buy) [F1]	Common Stock (250,000)	$2.65	Aug. 31, 2030	250,000	Acquired
Feb. 9, 2020	GALT	Stock option (right to buy) [F1]	Common Stock (62,250)	$2.39	Dec. 14, 2027	8,000	Disposed
Jan. 9, 2020	GALT	Stock option (right to buy) [F2]	Common Stock (40,000)	$2.86	Jan. 9, 2030	40,000	Acquired
May 31, 2019	GALT	Common Stock Purchase Warrant (right to buy)	Common Stock (3,212)	$7.00	May 31, 2026	42,831	Acquired
Jan. 16, 2019	GALT	Stock option (right to buy)	Common stock (35,000)	$4.72	Jan. 16, 2029	35,000	Acquired
Dec. 14, 2017	GALT	Stock option (right to buy)	Common stock (62,250)	$2.39	Dec. 14, 2027	62,250	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Dec. 18, 2017	GALT	Common Stock	27,867	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

GALT

CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2024	$620,167	$312,000	—	—	—	—	$54,872	$1,189,674
2023	$573,583	$289,000	—	$55,924	—	—	$45,140	$963,647
2022	$522,917	$262,500	—	$103,517	—	—	$85,247	$974,181

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.