SULLIVAN BRIAN F

Insider

First SEC filing: Sept. 19, 2017 · Latest: Sept. 19, 2017

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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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 81 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

81 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	CELC	A	80,000	—	—	1,450,199 Direct	+5.84%	Acquired	(price as of 2026-08-20)
Aug. 14, 2026	CELC	A	120,000	—	—	120,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 20, 2024	CELC	A	150,000	—	—	150,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 20, 2024	CELC	A	250,000	—	—	250,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 20, 2024	CELC	G	189,103	—	—	1,342,374 Direct	+16.40%	Acquired	(price as of 2026-08-20)
Aug. 20, 2024	CELC	G	189,103	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
April 26, 2024	CELC	G	45,025	—	—	908,372 Indirect	+5.22%	Acquired	(price as of 2026-08-20)
April 26, 2024	CELC	G	45,025	—	—	1,153,271 Direct	-3.76%	Disposed	(price as of 2026-08-20)
March 18, 2024	CELC	G	765,897	—	—	765,897 Indirect	—	Acquired	(price as of 2026-08-20)
March 18, 2024	CELC	G	765,897	—	—	189,103 Indirect	-80.20%	Disposed	(price as of 2026-08-20)
Jan. 30, 2024	CELC	G	85,000	—	—	955,000 Indirect	+9.77%	Acquired	(price as of 2026-08-20)
Jan. 30, 2024	CELC	G	85,000	—	—	1,198,296 Direct	-6.62%	Disposed	(price as of 2026-08-20)
Jan. 2, 2024	CELC	A	84,000	—	—	84,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 27, 2023	CELC	G	863,347	—	—	863,347 Indirect	—	Acquired	(price as of 2026-08-20)
Dec. 27, 2023	CELC	G	870,000	—	—	870,000 Indirect	—	Acquired	(price as of 2026-08-20)
Dec. 27, 2023	CELC	G	1,733,347	—	—	1,283,296 Direct	-57.46%	Disposed	(price as of 2026-08-20)
Aug. 25, 2023	CELC	A	180,000	—	—	180,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 16, 2023	CELC	A	69,760	—	—	69,760 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 9, 2022	CELC	D	260,869	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 9, 2022	CELC	A	104,340	—	—	104,340 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 9, 2022	CELC	D	10,434	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 9, 2022	CELC	P	260,869	$5.75	$1,499,997	3,016,643 Direct	+9.47%	Acquired	1499.5% (price as of 2026-08-20)
Oct. 27, 2021	CELC	A	6,569	—	—	6,569 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 11, 2021	CELC	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 11, 2021	CELC	A	17,000	—	—	17,000 Direct	—	Acquired	(price as of 2026-08-20)
May 19, 2021	ENTG	A	71	$108.05	$7,672	97,591 Direct	+0.07%	Acquired	32.0% (price as of 2026-08-20)
May 7, 2021	ENTG	S	2,567	$114.51	$293,947	97,521 Direct	-2.56%	Disposed	24.6% (price as of 2026-08-20)
April 29, 2021	ENTG	A	1,610	—	—	100,088 Direct	+1.63%	Acquired	(price as of 2026-08-20)
April 12, 2021	CELC	A	13,509	—	—	13,509 Direct	—	Acquired	(price as of 2026-08-20)
March 18, 2021	CELC	A	11,889	—	—	11,889 Direct	—	Acquired	(price as of 2026-08-20)
March 3, 2021	ENTG	S	4,090	$103.78	$424,460	102,047 Direct	-3.85%	Disposed	37.5% (price as of 2026-08-20)
March 3, 2021	ENTG	S	3,569	$104.98	$374,674	98,478 Direct	-3.50%	Disposed	35.9% (price as of 2026-08-20)
Feb. 17, 2021	ENTG	A	74	$103.17	$7,635	106,137 Direct	+0.07%	Acquired	38.3% (price as of 2026-08-20)
Feb. 2, 2021	CELC	A	12,859	—	—	12,859 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 28, 2020	CELC	A	11,081	—	—	11,081 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 18, 2020	ENTG	A	86	$88.76	$7,633	106,062 Direct	+0.08%	Acquired	60.7% (price as of 2026-08-20)
Aug. 19, 2020	ENTG	A	108	$71.05	$7,673	105,976 Direct	+0.10%	Acquired	100.8% (price as of 2026-08-20)
Aug. 12, 2020	CELC	A	17,281	—	—	17,281 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 12, 2020	CELC	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
May 20, 2020	ENTG	A	130	$58.51	$7,606	105,869 Direct	+0.12%	Acquired	143.8% (price as of 2026-08-20)
April 29, 2020	ENTG	A	2,567	—	—	105,738 Direct	+2.49%	Acquired	(price as of 2026-08-20)
Feb. 19, 2020	ENTG	A	131	$57.96	$7,593	103,010 Direct	+0.13%	Acquired	146.1% (price as of 2026-08-20)
Nov. 20, 2019	ENTG	A	162	$47.01	$7,616	102,878 Direct	+0.16%	Acquired	203.5% (price as of 2026-08-20)
Aug. 21, 2019	ENTG	A	175	$43.41	$7,597	102,716 Direct	+0.17%	Acquired	228.6% (price as of 2026-08-20)
Aug. 12, 2019	CELC	A	4,985	—	—	4,985 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 12, 2019	CELC	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2019	ENTG	A	184	$35.93	$6,611	102,541 Direct	+0.18%	Acquired	297.1% (price as of 2026-08-20)
May 1, 2019	ENTG	A	3,569	—	—	102,357 Direct	+3.61%	Acquired	(price as of 2026-08-20)
Feb. 20, 2019	ENTG	A	187	$35.39	$6,618	98,788 Direct	+0.19%	Acquired	303.1% (price as of 2026-08-20)
Nov. 21, 2018	ENTG	A	242	$27.50	$6,655	98,601 Direct	+0.25%	Acquired	418.8% (price as of 2026-08-20)
Oct. 17, 2018	CELC	A	14,675	—	—	14,675 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 22, 2018	ENTG	A	199	$33.15	$6,597	98,359 Direct	+0.20%	Acquired	330.4% (price as of 2026-08-20)
Aug. 13, 2018	CELC	A	3,769	—	—	3,769 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 6, 2018	ENTG	S	5,133	$36.65	$188,124	98,161 Direct	-4.97%	Disposed	289.3% (price as of 2026-08-20)
May 23, 2018	ENTG	A	188	$35.00	$6,580	103,294 Direct	+0.18%	Acquired	307.6% (price as of 2026-08-20)
May 9, 2018	ENTG	A	4,090	—	—	103,106 Direct	+4.13%	Acquired	(price as of 2026-08-20)
Feb. 21, 2018	ENTG	A	200	$32.80	$6,560	99,016 Direct	+0.20%	Acquired	334.9% (price as of 2026-08-20)
Nov. 22, 2017	ENTG	A	205	$31.95	$6,550	98,816 Direct	+0.21%	Acquired	346.5% (price as of 2026-08-20)
Sept. 19, 2017	CELC	A	8,220	—	—	8,220 Direct	—	Acquired	(price as of 2026-08-20)
June 2, 2017	ENTG	S	9,735	$25.96	$252,721	98,611 Direct	-8.99%	Disposed	449.5% (price as of 2026-08-20)
May 24, 2017	ENTG	A	5,133	—	—	108,346 Direct	+4.97%	Acquired	(price as of 2026-08-20)
Aug. 1, 2016	ENTG	S	9,391	$17.01	$159,741	103,213 Direct	-8.34%	Disposed	738.7% (price as of 2026-08-20)
May 17, 2016	ENTG	A	9,735	—	—	112,604 Direct	+9.46%	Acquired	(price as of 2026-08-20)
Aug. 10, 2015	ENTG	S	9,107	$14.75	$134,328	102,869 Direct	-8.13%	Disposed	867.2% (price as of 2026-08-20)
April 30, 2015	ENTG	A	9,391	—	—	111,976 Direct	+9.15%	Acquired	(price as of 2026-08-20)
Nov. 21, 2014	ENTG	S	10,406	$13.37	$139,128	102,585 Direct	-9.21%	Disposed	967.0% (price as of 2026-08-20)
Aug. 26, 2014	ENTG	S	2,722	$12.15	$33,072	112,991 Direct	-2.35%	Disposed	1074.2% (price as of 2026-08-20)
Aug. 25, 2014	ENTG	M	9,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 25, 2014	ENTG	F	6,278	$12.00	$75,336	115,713 Direct	-5.15%	Disposed	1088.9% (price as of 2026-08-20)
Aug. 25, 2014	ENTG	M	9,000	$8.37	$75,330	121,991 Direct	+7.97%	Acquired	1604.5% (price as of 2026-08-20)
May 7, 2014	ENTG	A	9,107	—	—	112,991 Direct	+8.77%	Acquired	(price as of 2026-08-20)
May 20, 2013	ENTG	S	11,123	$9.78	$108,783	103,884 Direct	-9.67%	Disposed	1358.7% (price as of 2026-08-20)
May 8, 2013	ENTG	A	10,406	—	—	115,007 Direct	+9.95%	Acquired	(price as of 2026-08-20)
Nov. 29, 2012	ENTG	S	11,806	$9.00	$106,254	104,601 Direct	-10.14%	Disposed	1485.1% (price as of 2026-08-20)
Nov. 29, 2012	ENTG	S	19,129	$9.00	$172,161	116,407 Direct	-14.11%	Disposed	1485.1% (price as of 2026-08-20)
May 2, 2012	ENTG	A	11,123	—	—	135,536 Direct	+8.94%	Acquired	(price as of 2026-08-20)
May 4, 2011	ENTG	S	28,600	$8.51	$243,386	112,607 Direct	-20.25%	Disposed	1576.4% (price as of 2026-08-20)
May 4, 2011	ENTG	A	11,806	—	—	124,413 Direct	+10.48%	Acquired	(price as of 2026-08-20)
May 3, 2011	ENTG	S	1,400	$8.64	$12,096	141,207 Direct	-0.98%	Disposed	1551.2% (price as of 2026-08-20)
May 2, 2011	ENTG	S	20,000	$8.63	$172,600	142,607 Direct	-12.30%	Disposed	1553.1% (price as of 2026-08-20)
Feb. 7, 2011	ENTG	S	30,717	$8.70	$267,238	162,607 Direct	-15.89%	Disposed	1539.8% (price as of 2026-08-20)
May 5, 2010	ENTG	A	16,129	—	—	193,324 Direct	+9.10%	Acquired	(price as of 2026-08-20)
March 4, 2010	ENTG	P	34,500	$4.76	$164,220	177,195 Direct	+24.18%	Acquired	2897.1% (price as of 2026-08-20)
March 4, 2010	ENTG	P	15,500	$4.75	$73,625	142,695 Direct	+12.19%	Acquired	2903.4% (price as of 2026-08-20)
Dec. 1, 2009	ENTG	A	3,597	$15000.00	$53,955,000	127,195 Direct	+2.91%	Acquired	-99.0% (price as of 2026-08-20)
Sept. 1, 2009	ENTG	A	3,750	$15000.00	$56,250,000	123,598 Direct	+3.13%	Acquired	-99.0% (price as of 2026-08-20)
June 1, 2009	ENTG	A	5,208	$15000.00	$78,120,000	119,848 Direct	+4.54%	Acquired	-99.0% (price as of 2026-08-20)
May 6, 2009	ENTG	A	3,000	—	—	114,640 Direct	+2.69%	Acquired	(price as of 2026-08-20)
May 6, 2009	ENTG	A	45,077	—	—	111,640 Direct	+67.72%	Acquired	(price as of 2026-08-20)
May 6, 2009	ENTG	A	21,308	$11085.00	$236,199,180	66,563 Direct	+47.08%	Acquired	-98.7% (price as of 2026-08-20)
Jan. 14, 2009	ENTG	A	7,538	—	—	45,255 Direct	+19.99%	Acquired	(price as of 2026-08-20)
Jan. 14, 2009	ENTG	A	9,296	—	—	47,013 Direct	+24.65%	Acquired	(price as of 2026-08-20)
May 7, 2008	ENTG	A	3,000	—	—	37,717 Direct	+8.64%	Acquired	(price as of 2026-08-20)
May 7, 2008	ENTG	A	10,550	—	—	34,717 Direct	+43.65%	Acquired	(price as of 2026-08-20)
May 9, 2007	ENTG	A	3,000	—	—	24,167 Direct	+14.17%	Acquired	(price as of 2026-08-20)
May 9, 2007	ENTG	A	7,000	—	—	21,167 Direct	+49.41%	Acquired	(price as of 2026-08-20)
June 14, 2006	ENTG	A	3,000	—	—	14,167 Direct	+26.86%	Acquired	(price as of 2026-08-20)
June 14, 2006	ENTG	A	7,000	—	—	11,167 Direct	+167.99%	Acquired	(price as of 2026-08-20)
Aug. 10, 2005	ENTG	A	4,167	—	—	4,167 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 15, 2004	ENTG	A	9,000	—	—	9,000 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
Aug. 14, 2026	CELC	Performance Stock Units	Common Stock (120,000)	—	—	120,000	Acquired
Aug. 20, 2024	CELC	Stock Option (performance)	Common Stock (150,000)	$17.04	Aug. 20, 2034	150,000	Acquired
Aug. 20, 2024	CELC	Stock Option (right to buy)	Common Stock (250,000)	$17.04	Aug. 20, 2034	250,000	Acquired
Jan. 2, 2024	CELC	Stock Option (right to buy)	Common Stock (84,000)	$14.78	Jan. 2, 2034	84,000	Acquired
Aug. 25, 2023	CELC	Stock Option (right to buy)	Common Stock (180,000)	$9.89	Aug. 25, 2033	180,000	Acquired
Feb. 16, 2023	CELC	Stock Option (right to buy)	Common Stock (69,760)	$11.55	Feb. 16, 2033	69,760	Acquired
Dec. 9, 2022	CELC	Common Stock (right to buy)	Common Stock (260,869)	$5.75	—	260,869	Disposed
Dec. 9, 2022	CELC	Warrants (right to buy)	Common Stock (104,340)	$8.05	Dec. 9, 2027	104,340	Acquired
Dec. 9, 2022	CELC	Warrants (right to buy)	Series A Preferred Stock (10,434)	$80.50	—	10,434	Disposed
Oct. 27, 2021	CELC	Stock Option (right to buy)	Common Stock (6,569)	$17.19	Oct. 27, 2031	6,569	Acquired
Aug. 11, 2021	CELC	Stock Option (right to buy)	Common Stock (20,000)	$20.04	Aug. 11, 2031	20,000	Acquired
Aug. 11, 2021	CELC	Stock Option (right to buy)	Common Stock (17,000)	$20.04	Aug. 11, 2031	17,000	Acquired
April 12, 2021	CELC	Stock Option (right to buy)	Common Stock (13,509)	$27.94	April 12, 2031	13,509	Acquired
March 18, 2021	CELC	Stock Option (right to buy)	Common Stock (11,889)	$15.92	March 18, 2031	11,889	Acquired
Feb. 2, 2021	CELC	Stock Option (right to buy)	Common Stock (12,859)	$14.84	Feb. 2, 2031	12,859	Acquired
Dec. 28, 2020	CELC	Stock Option (right to buy)	Common Stock (11,081)	$10.35	Dec. 28, 2030	11,081	Acquired
Aug. 12, 2020	CELC	Stock Option (right to buy)	Common Stock (17,281)	$5.90	Aug. 12, 2030	17,281	Acquired
Aug. 12, 2020	CELC	Stock Option (right to buy)	Common Stock (20,000)	$5.90	Aug. 12, 2030	20,000	Acquired
Aug. 12, 2019	CELC	Stock Option (right to buy)	Common Stock (4,985)	$19.72	Aug. 12, 2029	4,985	Acquired
Aug. 12, 2019	CELC	Stock Option (right to buy)	Common Stock (50,000)	$19.72	Aug. 12, 2029	50,000	Acquired
Oct. 17, 2018	CELC	Stock Option (right to buy)	Common Stock (14,675)	$25.77	Oct. 17, 2028	14,675	Acquired
Aug. 13, 2018	CELC	Stock Option (right to buy)	Common Stock (3,769)	$26.00	Aug. 13, 2028	3,769	Acquired
Sept. 19, 2017	CELC	Stock Option (right to buy)	Common Stock (8,220)	$9.50	Sept. 19, 2027	8,220	Acquired
Aug. 25, 2014	ENTG	Employee Stock Option (Right to Buy)	Common Stock (9,000)	$8.37	Oct. 15, 2014	9,000	Disposed
Oct. 15, 2004	ENTG	Stock Option (Right to Buy)	Common Stock (9,000)	$8.37	Oct. 15, 2014	9,000	Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date	Ticker	Security	Shares	Ownership
Sept. 19, 2017	CELC	Common Stock	2,755,774	Direct
Sept. 19, 2017	CELC	Stock Option (right to buy)→ Common Stock (21,500)	21,500	Direct
Dec. 29, 2003	ENTG	Stock Option (Right to Buy)→ Common Stock (9,000)	9,000	Direct