Cynthia M. Durrett

Insider

First SEC filing: June 19, 2017 · Latest: June 19, 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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

SEI selling Aug. 3, 2023

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 37 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

37 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 1, 2024	SEI	A	58,911	—	—	169,945 Direct	+53.06%	Acquired	(price as of 2026-08-21)
March 1, 2024	SEI	F	10,042	$8.47	$85,056	159,903 Direct	-5.91%	Disposed	553.6% (price as of 2026-08-21)
Aug. 3, 2023	SEI	S	7,415	$11.00	$81,565	111,034 Direct	-6.26%	Disposed	403.3% (price as of 2026-08-21)
March 1, 2023	SEI	F	8,697	$8.93	$77,664	118,449 Direct	-6.84%	Disposed	519.9% (price as of 2026-08-21)
March 1, 2023	SEI	A	42,410	—	—	127,146 Direct	+50.05%	Acquired	(price as of 2026-08-21)
May 4, 2022	SEI	S	15,130	$12.40	$187,612	84,736 Direct	-15.15%	Disposed	346.5% (price as of 2026-08-21)
March 1, 2022	SEI	A	47,710	—	—	107,125 Direct	+80.30%	Acquired	(price as of 2026-08-21)
March 1, 2022	SEI	F	7,259	$10.40	$75,494	99,866 Direct	-6.78%	Disposed	432.3% (price as of 2026-08-21)
March 12, 2021	SEI	S	15,128	$14.60	$220,869	59,415 Direct	-20.29%	Disposed	279.2% (price as of 2026-08-21)
March 5, 2021	SEI	S	28,768	$12.29	$353,559	74,543 Direct	-27.85%	Disposed	350.4% (price as of 2026-08-21)
March 1, 2021	SEI	F	4,870	$11.81	$57,515	103,311 Direct	-4.50%	Disposed	368.8% (price as of 2026-08-21)
March 1, 2021	SEI	A	29,412	—	—	108,181 Direct	+37.34%	Acquired	(price as of 2026-08-21)
Aug. 23, 2020	SEI	F	1,838	$7.51	$13,803	78,769 Direct	-2.28%	Disposed	637.2% (price as of 2026-08-21)
March 1, 2020	SEI	F	2,435	$10.60	$25,811	80,607 Direct	-2.93%	Disposed	422.3% (price as of 2026-08-21)
March 1, 2020	SEI	A	30,000	—	—	83,042 Direct	+56.56%	Acquired	(price as of 2026-08-21)
Sept. 16, 2019	SEI	S	42,167	$14.67	$618,590	53,042 Direct	-44.29%	Disposed	277.4% (price as of 2026-08-21)
Aug. 23, 2019	SEI	F	2,970	$13.75	$40,838	95,209 Direct	-3.03%	Disposed	302.6% (price as of 2026-08-21)
March 7, 2019	SEI	M	69,745	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 7, 2019	SEI	F	27,578	$15.48	$426,907	98,179 Direct	-21.93%	Disposed	257.6% (price as of 2026-08-21)
March 7, 2019	SEI	M	69,745	$2.87	$200,168	125,757 Direct	+124.52%	Acquired	1828.9% (price as of 2026-08-21)
March 7, 2019	SEI	M	69,745	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 7, 2019	SEI	F	27,578	$15.48	$426,907	98,179 Direct	-21.93%	Disposed	257.6% (price as of 2026-08-21)
March 7, 2019	SEI	M	69,745	$2.87	$200,168	125,757 Direct	+124.52%	Acquired	1828.9% (price as of 2026-08-21)
March 1, 2019	SEI	A	30,000	—	—	56,012 Direct	+115.33%	Acquired	(price as of 2026-08-21)
Aug. 23, 2018	SEI	F	1,838	$17.03	$31,301	26,012 Direct	-6.60%	Disposed	225.1% (price as of 2026-08-21)
May 17, 2018	SEI	F	1,662	$16.32	$27,124	27,850 Direct	-5.63%	Disposed	239.2% (price as of 2026-08-21)
Jan. 11, 2018	SEI	C	21,219	—	—	165,038 Direct	-11.39%	Disposed	(price as of 2026-08-21)
Jan. 11, 2018	SEI	J	21,219	—	—	165,038 Direct	-11.39%	Disposed	(price as of 2026-08-21)
Jan. 11, 2018	SEI	S	21,219	$21.65	$459,391	29,512 Direct	-41.83%	Disposed	155.7% (price as of 2026-08-21)
Jan. 11, 2018	SEI	C	21,219	—	—	50,731 Direct	+71.90%	Acquired	(price as of 2026-08-21)
Nov. 15, 2017	SEI	S	11,201	$15.04	$168,463	29,512 Direct	-27.51%	Disposed	268.1% (price as of 2026-08-21)
Nov. 14, 2017	SEI	C	11,201	—	—	186,257 Direct	-5.67%	Disposed	(price as of 2026-08-21)
Nov. 14, 2017	SEI	J	11,201	—	—	186,257 Direct	-5.67%	Disposed	(price as of 2026-08-21)
Nov. 14, 2017	SEI	C	11,201	—	—	40,713 Direct	+37.95%	Acquired	(price as of 2026-08-21)
Nov. 14, 2017	SEI	S	42,672	$15.04	$641,787	29,512 Direct	-59.12%	Disposed	268.1% (price as of 2026-08-21)
Nov. 13, 2017	SEI	C	42,672	—	—	197,458 Direct	-17.77%	Disposed	(price as of 2026-08-21)
Nov. 13, 2017	SEI	J	42,672	—	—	197,458 Direct	-17.77%	Disposed	(price as of 2026-08-21)
Nov. 13, 2017	SEI	C	42,672	—	—	72,184 Direct	+144.59%	Acquired	(price as of 2026-08-21)
Aug. 23, 2017	SEI	A	22,642	—	—	29,512 Direct	+329.58%	Acquired	(price as of 2026-08-21)
June 16, 2017	SEI	J	233,948	—	—	240,130 Direct	+3784.34%	Acquired	(price as of 2026-08-21)
June 16, 2017	SEI	J	233,948	—	—	240,130 Direct	+3784.34%	Acquired	(price as of 2026-08-21)
May 17, 2017	SEI	A	69,745	—	—	69,745 Direct	—	Acquired	(price as of 2026-08-21)
May 17, 2017	SEI	A	6,182	—	—	6,182 Direct	—	Acquired	(price as of 2026-08-21)
May 17, 2017	SEI	A	6,182	—	—	6,182 Direct	—	Acquired	(price as of 2026-08-21)
May 17, 2017	SEI	A	6,870	—	—	6,870 Direct	—	Acquired	(price as of 2026-08-21)

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
March 7, 2019	SEI	Options to purchase Class A Common Stock, par value $0.01	Class A Common Stock (69,745)	—	Nov. 20, 2025	69,745	Disposed
March 7, 2019	SEI	Options to purchase Class A Common Stock, par value $0.01	Class A Common Stock (69,745)	—	Nov. 20, 2025	69,745	Disposed
Jan. 11, 2018	SEI	Solaris Oilfield Infrastructure, LLC Units	Class A Common Stock (21,219)	—	—	21,219	Disposed
Nov. 14, 2017	SEI	Solaris Oilfield Infrastructure, LLC Units	Class A Common Stock (11,201)	—	—	11,201	Disposed
Nov. 13, 2017	SEI	Solaris Oilfield Infrastructure, LLC Units	Class A Common Stock (42,672)	—	—	42,672	Disposed
June 16, 2017	SEI	Solaris Oilfield Infrastructure, LLC Units	Class A Common Stock (233,948)	$0.00	—	233,948	Acquired
May 17, 2017	SEI	Options to purchase Class A Common Stock, par value $0.01	Class A Common Stock (69,745)	—	Nov. 20, 2025	69,745	Acquired
May 17, 2017	SEI	Solaris Oilfield Infrastructure, LLC Units	Class A Common Stock (6,182)	$0.00	—	6,182	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.

SEI

Chief Administrative Officer

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$350,000	—	$2,008,842	—	$322,500	—	$21,000	$2,702,342
2024	$285,000	$82,368	$652,640	—	$192,632	—	$20,700	$1,233,340
2023	$267,500	—	$517,980	—	$200,224	—	$19,800	$1,005,504

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