Nathaniel S. Gardiner

Insider

First SEC filing: May 12, 2016 · Latest: May 12, 2016

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

ENTA selling Dec. 5, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 72 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

72 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 26, 2024	ENTA	M	5,187	—	—	77,813 Direct	-6.25%	Disposed	(price as of 2026-08-20)
Feb. 26, 2024	ENTA	M	5,187	$8.99	$46,631	75,688 Direct	+7.36%	Acquired	50.1% (price as of 2026-08-20)
Feb. 12, 2024	ENTA	F	973	$12.41	$12,075	70,501 Direct	-1.36%	Disposed	8.7% (price as of 2026-08-20)
Feb. 12, 2024	ENTA	A	3,320	—	—	71,474 Direct	+4.87%	Acquired	(price as of 2026-08-20)
Dec. 5, 2023	ENTA	S	2,412	$9.63	$23,228	68,154 Direct	-3.42%	Disposed	40.1% (price as of 2026-08-20)
Dec. 1, 2023	ENTA	F	1,595	$9.49	$15,137	70,566 Direct	-2.21%	Disposed	42.1% (price as of 2026-08-20)
Nov. 22, 2023	ENTA	A	83,000	—	—	83,000 Direct	—	Acquired	(price as of 2026-08-20)
April 18, 2023	ENTA	M	6,667	—	—	7,000 Direct	-48.78%	Disposed	(price as of 2026-08-20)
April 18, 2023	ENTA	M	6,667	$30.00	$200,010	79,980 Direct	+9.09%	Acquired	-55.0% (price as of 2026-08-20)
Feb. 13, 2023	ENTA	F	6,735	$52.77	$355,406	73,313 Direct	-8.41%	Disposed	-74.4% (price as of 2026-08-20)
Feb. 13, 2023	ENTA	A	11,747	—	—	80,048 Direct	+17.20%	Acquired	(price as of 2026-08-20)
Feb. 13, 2023	ENTA	A	9,250	—	—	68,301 Direct	+15.66%	Acquired	(price as of 2026-08-20)
Dec. 1, 2022	ENTA	F	1,055	$44.33	$46,768	59,051 Direct	-1.76%	Disposed	-69.6% (price as of 2026-08-20)
Nov. 23, 2022	ENTA	A	45,000	—	—	45,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 23, 2022	ENTA	A	21,000	—	—	60,106 Direct	+53.70%	Acquired	(price as of 2026-08-20)
Feb. 14, 2022	ENTA	F	957	$62.49	$59,803	46,239 Direct	-2.03%	Disposed	-78.4% (price as of 2026-08-20)
Feb. 14, 2022	ENTA	A	2,419	—	—	47,196 Direct	+5.40%	Acquired	(price as of 2026-08-20)
Feb. 14, 2022	ENTA	A	615	—	—	44,777 Direct	+1.39%	Acquired	(price as of 2026-08-20)
Dec. 1, 2021	ENTA	F	557	$87.68	$48,838	59,226 Direct	-0.93%	Disposed	-84.6% (price as of 2026-08-20)
Nov. 19, 2021	ENTA	A	28,400	—	—	28,400 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 19, 2021	ENTA	A	6,800	—	—	59,783 Direct	+12.83%	Acquired	(price as of 2026-08-20)
Dec. 15, 2020	ENTA	M	5,250	—	—	43,788 Direct	+13.62%	Acquired	(price as of 2026-08-20)
Dec. 15, 2020	ENTA	F	1,540	$42.52	$65,481	42,248 Direct	-3.52%	Disposed	-68.3% (price as of 2026-08-20)
Dec. 15, 2020	ENTA	M	5,250	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 3, 2020	ENTA	M	1,667	—	—	13,667 Direct	-10.87%	Disposed	(price as of 2026-08-20)
Dec. 3, 2020	ENTA	M	1,667	$30.00	$50,010	38,538 Direct	+4.52%	Acquired	-55.0% (price as of 2026-08-20)
Nov. 20, 2020	ENTA	A	30,800	—	—	30,800 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 20, 2020	ENTA	A	7,600	—	—	36,871 Direct	+25.96%	Acquired	(price as of 2026-08-20)
Aug. 5, 2020	ENTA	M	1,666	—	—	15,334 Direct	-9.80%	Disposed	(price as of 2026-08-20)
Aug. 5, 2020	ENTA	M	1,666	$30.00	$49,980	29,271 Direct	+6.04%	Acquired	-55.0% (price as of 2026-08-20)
March 12, 2020	ENTA	M	3,000	—	—	17,000 Direct	-15.00%	Disposed	(price as of 2026-08-20)
March 12, 2020	ENTA	M	3,000	$30.00	$90,000	27,605 Direct	+12.19%	Acquired	-55.0% (price as of 2026-08-20)
Feb. 12, 2020	ENTA	F	940	$52.76	$49,594	24,605 Direct	-3.68%	Disposed	-74.4% (price as of 2026-08-20)
Feb. 12, 2020	ENTA	A	2,475	—	—	25,545 Direct	+10.73%	Acquired	(price as of 2026-08-20)
Feb. 12, 2020	ENTA	A	412	—	—	23,070 Direct	+1.82%	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	ENTA	M	5,250	—	—	5,250 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Dec. 16, 2019	ENTA	F	2,331	$63.88	$148,904	22,658 Direct	-9.33%	Disposed	-78.9% (price as of 2026-08-20)
Dec. 16, 2019	ENTA	M	5,250	—	—	24,989 Direct	+26.60%	Acquired	(price as of 2026-08-20)
Nov. 22, 2019	ENTA	M	1,592	—	—	19,818 Direct	-7.44%	Disposed	(price as of 2026-08-20)
Nov. 22, 2019	ENTA	M	1,592	$31.42	$50,021	19,739 Direct	+8.77%	Acquired	-57.1% (price as of 2026-08-20)
Nov. 18, 2019	ENTA	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 27, 2019	ENTA	M	5,000	—	—	20,000 Direct	-20.00%	Disposed	(price as of 2026-08-20)
Sept. 27, 2019	ENTA	M	5,000	$30.00	$150,000	19,871 Direct	+33.62%	Acquired	-55.0% (price as of 2026-08-20)
June 26, 2019	ENTA	M	3,295	$31.42	$103,529	13,147 Direct	+33.44%	Acquired	-57.1% (price as of 2026-08-20)
June 26, 2019	ENTA	M	3,295	—	—	21,410 Direct	-13.34%	Disposed	(price as of 2026-08-20)
June 26, 2019	ENTA	M	3,295	$31.42	$103,529	14,871 Direct	+28.46%	Acquired	-57.1% (price as of 2026-08-20)
March 6, 2019	ENTA	M	795	—	—	24,705 Direct	-3.12%	Disposed	(price as of 2026-08-20)
March 6, 2019	ENTA	M	1,724	—	—	70,976 Direct	-2.37%	Disposed	(price as of 2026-08-20)
March 6, 2019	ENTA	M	795	$31.42	$24,979	26,497 Direct	+3.09%	Acquired	-57.1% (price as of 2026-08-20)
March 6, 2019	ENTA	M	1,724	$34.70	$59,823	25,702 Direct	+7.19%	Acquired	-61.1% (price as of 2026-08-20)
Feb. 13, 2019	ENTA	S 10b5-1	3,270	$95.28	$311,566	23,978 Direct	-12.00%	Disposed	-85.8% (price as of 2026-08-20)
Feb. 12, 2019	ENTA	F	4,579	$88.88	$406,982	27,248 Direct	-14.39%	Disposed	-84.8% (price as of 2026-08-20)
Feb. 12, 2019	ENTA	A	10,000	—	—	31,827 Direct	+45.81%	Acquired	(price as of 2026-08-20)
Feb. 12, 2019	ENTA	A	4,000	—	—	21,827 Direct	+22.44%	Acquired	(price as of 2026-08-20)
Jan. 22, 2019	ENTA	M	2,000	—	—	72,700 Direct	-2.68%	Disposed	(price as of 2026-08-20)
Jan. 22, 2019	ENTA	M	2,000	$34.70	$69,400	17,827 Direct	+12.64%	Acquired	-61.1% (price as of 2026-08-20)
Dec. 6, 2018	ENTA	M	2,000	—	—	74,700 Direct	-2.61%	Disposed	(price as of 2026-08-20)
Dec. 6, 2018	ENTA	M	2,000	$34.70	$69,400	15,827 Direct	+14.46%	Acquired	-61.1% (price as of 2026-08-20)
Nov. 16, 2018	ENTA	A	18,000	—	—	18,000 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 1, 2018	ENTA	M	1,500	—	—	76,700 Direct	-1.92%	Disposed	(price as of 2026-08-20)
Oct. 1, 2018	ENTA	M	1,500	$34.70	$52,050	13,827 Direct	+12.17%	Acquired	-61.1% (price as of 2026-08-20)
Feb. 12, 2018	ENTA	F	2,065	$76.84	$158,675	12,327 Direct	-14.35%	Disposed	-82.4% (price as of 2026-08-20)
Feb. 12, 2018	ENTA	A	4,822	—	—	14,392 Direct	+50.39%	Acquired	(price as of 2026-08-20)
Feb. 12, 2018	ENTA	A	2,000	—	—	9,570 Direct	+26.42%	Acquired	(price as of 2026-08-20)
Feb. 8, 2018	ENTA	M	4,300	—	—	78,200 Direct	-5.21%	Disposed	(price as of 2026-08-20)
Feb. 8, 2018	ENTA	M	4,300	$34.70	$149,210	7,570 Direct	+131.50%	Acquired	-61.1% (price as of 2026-08-20)
Nov. 17, 2017	ENTA	A	21,500	—	—	21,500 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 13, 2017	ENTA	F	830	$29.82	$24,751	3,270 Direct	-20.24%	Disposed	-54.8% (price as of 2026-08-20)
Feb. 13, 2017	ENTA	A	2,200	—	—	4,100 Direct	+115.79%	Acquired	(price as of 2026-08-20)
Nov. 18, 2016	ENTA	A	10,500	—	—	10,500 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 18, 2016	ENTA	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
May 11, 2016	ENTA	P	500	$24.44	$12,220	1,900 Direct	+35.71%	Acquired	-44.8% (price as of 2026-08-20)
Nov. 20, 2015	ENTA	A	25,500	—	—	25,500 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 17, 2015	ENTA	P	400	$33.10	$13,240	1,400 Direct	+40.00%	Acquired	-59.2% (price as of 2026-08-20)
Feb. 17, 2015	ENTA	P	600	$33.47	$20,082	1,000 Direct	+150.00%	Acquired	-59.7% (price as of 2026-08-20)
Feb. 13, 2015	ENTA	P	400	$33.00	$13,200	400 Direct	—	Acquired	-59.1% (price as of 2026-08-20)
Nov. 20, 2014	ENTA	A	27,500	—	—	27,500 Direct	—	Acquired	(price as of 2026-08-20)
May 9, 2014	ENTA	A	82,500	—	—	82,500 Direct	—	Acquired	(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
Feb. 26, 2024	ENTA	Stock Option (Right to Buy)	Common Stock (5,187)	$8.99	Nov. 22, 2033	5,187	Disposed
Nov. 22, 2023	ENTA	Stock Option (right to buy)	Common Stock (83,000)	$8.99	Nov. 22, 2033	83,000	Acquired
April 18, 2023	ENTA	Stock Option (Right to Buy)	Common Stock (6,667)	$30.00	Nov. 18, 2026	6,667	Disposed
Nov. 23, 2022	ENTA	Stock Option (right to buy)	Common Stock (45,000)	$45.00	Nov. 23, 2032	45,000	Acquired
Nov. 19, 2021	ENTA	Stock Option (right to buy)	Common Stock (28,400)	$75.33	Nov. 19, 2031	28,400	Acquired
Dec. 15, 2020	ENTA	Restricted Stock Units	Common Stock (5,250)	—	—	5,250	Disposed
Dec. 3, 2020	ENTA	Stock Option (right to buy)	Common Stock (1,667)	$30.00	Nov. 18, 2026	1,667	Disposed
Nov. 20, 2020	ENTA	Stock Option (right to buy)	Common Stock (30,800)	$43.57	Nov. 20, 2030	30,800	Acquired
Aug. 5, 2020	ENTA	Stock Option (right to buy)	Common Stock (1,666)	$30.00	Nov. 18, 2026	1,666	Disposed
March 12, 2020	ENTA	Stock Option (right to buy)	Common Stock (3,000)	$30.00	Nov. 18, 2026	3,000	Disposed
Dec. 16, 2019	ENTA	Restricted Stock Units	Common Stock (5,250)	—	—	5,250	Disposed
Nov. 22, 2019	ENTA	Stock Option (right to buy)	Common Stock (1,592)	$31.42	Nov. 20, 2025	1,592	Disposed
Nov. 18, 2019	ENTA	Stock Option (right to buy)	Common Stock (30,000)	$63.35	Nov. 18, 2029	30,000	Acquired
Sept. 27, 2019	ENTA	Stock Option (right to buy)	Common Stock (5,000)	$30.00	Nov. 18, 2026	5,000	Disposed
June 26, 2019	ENTA	Stock Option (right to buy)	Common Stock (3,295)	$31.42	Nov. 20, 2025	3,295	Disposed
March 6, 2019	ENTA	Stock Option (right to buy)	Common Stock (795)	$31.42	Nov. 20, 2025	795	Disposed
March 6, 2019	ENTA	Stock Option (right to buy)	Common Stock (1,724)	$34.70	May 9, 2024	1,724	Disposed
Jan. 22, 2019	ENTA	Stock Option (right to buy)	Common Stock (2,000)	$34.70	May 9, 2024	2,000	Disposed
Dec. 6, 2018	ENTA	Stock Option (right to buy)	Common Stock (2,000)	$34.70	May 9, 2024	2,000	Disposed
Nov. 16, 2018	ENTA	Stock Option (right to buy)	Common Stock (18,000)	$81.20	Nov. 16, 2028	18,000	Acquired
Oct. 1, 2018	ENTA	Stock Option (right to buy)	Common Stock (1,500)	$34.70	May 9, 2024	1,500	Disposed
Feb. 8, 2018	ENTA	Stock Option (right to buy)	Common Stock (4,300)	$34.70	May 9, 2024	4,300	Disposed
Nov. 17, 2017	ENTA	Stock Option (right to buy)	Common Stock (21,500)	$48.52	Nov. 17, 2027	21,500	Acquired
Nov. 18, 2016	ENTA	Restricted Stock Units	Common Stock (10,500)	—	—	10,500	Acquired
Nov. 18, 2016	ENTA	Stock Option (right to buy)	Common Stock (25,000)	$30.00	Nov. 18, 2026	25,000	Acquired
Nov. 20, 2015	ENTA	Stock Option (right to buy)	Common Stock (25,500)	$31.42	Nov. 20, 2025	25,500	Acquired
Nov. 20, 2014	ENTA	Stock Option (right to buy)	Common Stock (27,500)	$44.00	Nov. 20, 2024	27,500	Acquired
May 9, 2014	ENTA	Stock Option (right to buy)	Common Stock (82,500)	$34.70	May 9, 2024	82,500	Acquired

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

Compensation (DEF 14A)

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

ENTA

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2023	$475,275	—	$1,146,600	$1,035,806	$176,802	—	$20,598	$2,855,081
2022	$458,050	—	—	—	$180,475	—	$19,424	$2,382,727
2020	$431,025	—	$187,821	$981,504	$169,470	—	$19,171	$1,788,991

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