Robin Tomasello

Insider

First SEC filing: June 10, 2026 · Latest: June 10, 2026

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

Insider transactions

0 buys (P) 2 sells (S) Net: $-296,691 + 63 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

63 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 6, 2026	S	S	5,467	$20.08	$109,777	439,863 Direct	-1.23%	Disposed	10.5% (price as of 2026-08-18)
June 8, 2026	S	S	11,905	$15.70	$186,914	445,330	—	—	41.3% (price as of 2026-08-18)
Dec. 10, 2021	S	A	69,583	—	—	69,583 Direct	—	Acquired	(price as of 2026-08-18)
Oct. 12, 2021	CHGG	F	166	$62.60	$10,392	55,719 Direct	-0.30%	Disposed	-98.8% (price as of 2026-08-18)
Sept. 1, 2021	CHGG	F	1,195	$83.33	$99,579	55,885 Direct	-2.09%	Disposed	-99.1% (price as of 2026-08-18)
July 12, 2021	CHGG	F	661	$84.51	$55,861	57,080 Direct	-1.14%	Disposed	-99.1% (price as of 2026-08-18)
June 1, 2021	CHGG	F	1,194	$76.32	$91,126	57,741 Direct	-2.03%	Disposed	-99.0% (price as of 2026-08-18)
March 1, 2021	CHGG	A	14,587	—	—	14,587 Direct	—	Acquired	(price as of 2026-08-18)
March 1, 2021	CHGG	A	10,095	—	—	65,039 Direct	+18.37%	Acquired	(price as of 2026-08-18)
March 1, 2021	CHGG	F	6,352	$99.05	$629,166	58,687 Direct	-9.77%	Disposed	-99.2% (price as of 2026-08-18)
March 1, 2021	CHGG	A	0	—	—	14,587 Direct	0.00%	Acquired	(price as of 2026-08-18)
Dec. 1, 2020	CHGG	F	588	$78.40	$46,099	54,944 Direct	-1.06%	Disposed	-99.0% (price as of 2026-08-18)
Nov. 20, 2020	CHGG	S	32,016	$71.45	$2,287,543	55,532 Direct	-36.57%	Disposed	-98.9% (price as of 2026-08-18)
Sept. 1, 2020	CHGG	F	589	$76.58	$45,106	87,394 Direct	-0.67%	Disposed	-99.0% (price as of 2026-08-18)
June 1, 2020	CHGG	F	588	$62.43	$36,709	87,983 Direct	-0.66%	Disposed	-98.8% (price as of 2026-08-18)
March 1, 2020	CHGG	A	14,664	—	—	101,738 Direct	+16.84%	Acquired	(price as of 2026-08-18)
March 1, 2020	CHGG	F	13,584	$39.21	$532,629	88,154 Direct	-13.35%	Disposed	-98.0% (price as of 2026-08-18)
Dec. 12, 2019	CHGG	S	4,877	$37.05	$180,693	91,603 Direct	-5.05%	Disposed	-97.9% (price as of 2026-08-18)
Dec. 12, 2019	CHGG	S	4,529	$37.00	$167,573	87,074 Direct	-4.94%	Disposed	-97.9% (price as of 2026-08-18)
April 1, 2019	CHGG	F	3,444	$37.75	$130,011	95,531 Direct	-3.48%	Disposed	-98.0% (price as of 2026-08-18)
March 1, 2019	CHGG	A	14,225	—	—	112,837 Direct	+14.43%	Acquired	(price as of 2026-08-18)
March 1, 2019	CHGG	F	13,862	$40.42	$560,302	98,975 Direct	-12.28%	Disposed	-98.1% (price as of 2026-08-18)
Feb. 23, 2019	CHGG	F	6,347	$39.13	$248,358	98,612 Direct	-6.05%	Disposed	-98.0% (price as of 2026-08-18)
Oct. 1, 2018	CHGG	F	507	$27.42	$13,902	104,959 Direct	-0.48%	Disposed	-97.2% (price as of 2026-08-18)
July 1, 2018	CHGG	F	507	$27.79	$14,090	103,769 Direct	-0.49%	Disposed	-97.2% (price as of 2026-08-18)
April 1, 2018	CHGG	F	3,950	$20.66	$81,607	104,276 Direct	-3.65%	Disposed	-96.3% (price as of 2026-08-18)
March 16, 2018	CHGG	M	14,564	$7.88	$114,764	140,290 Direct	+11.58%	Acquired	-90.2% (price as of 2026-08-18)
March 16, 2018	CHGG	M	2,777	$8.41	$23,355	143,067 Direct	+1.98%	Acquired	-90.8% (price as of 2026-08-18)
March 16, 2018	CHGG	M	13,889	$8.41	$116,806	156,956 Direct	+9.71%	Acquired	-90.8% (price as of 2026-08-18)
March 16, 2018	CHGG	M	2,636	$7.88	$20,772	159,592 Direct	+1.68%	Acquired	-90.2% (price as of 2026-08-18)
March 16, 2018	CHGG	M	6,638	$12.50	$82,975	166,230 Direct	+4.16%	Acquired	-93.8% (price as of 2026-08-18)
March 16, 2018	CHGG	S	58,004	$21.34	$1,237,805	108,226 Direct	-34.89%	Disposed	-96.4% (price as of 2026-08-18)
March 16, 2018	CHGG	M	14,564	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
March 16, 2018	CHGG	M	2,777	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
March 16, 2018	CHGG	M	13,889	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
March 16, 2018	CHGG	M	2,636	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
March 16, 2018	CHGG	M	6,638	—	—	1,733 Direct	-79.30%	Disposed	(price as of 2026-08-18)
March 15, 2018	CHGG	M	14,800	$7.88	$116,624	169,403 Direct	+9.57%	Acquired	-90.2% (price as of 2026-08-18)
March 15, 2018	CHGG	S	43,677	$21.90	$956,526	125,726 Direct	-25.78%	Disposed	-96.5% (price as of 2026-08-18)
March 15, 2018	CHGG	M	14,800	—	—	14,564 Direct	-50.40%	Disposed	(price as of 2026-08-18)
March 14, 2018	CHGG	S	37,268	$21.83	$813,560	154,603 Direct	-19.42%	Disposed	-96.5% (price as of 2026-08-18)
March 1, 2018	CHGG	A	29,187	—	—	198,934 Direct	+17.19%	Acquired	(price as of 2026-08-18)
March 1, 2018	CHGG	F	7,063	$19.70	$139,141	191,871 Direct	-3.55%	Disposed	-96.1% (price as of 2026-08-18)
Feb. 23, 2018	CHGG	F	7,716	$20.35	$157,021	169,747 Direct	-4.35%	Disposed	-96.2% (price as of 2026-08-18)
Feb. 1, 2018	CHGG	F	2,041	$17.32	$35,350	177,463 Direct	-1.14%	Disposed	-95.6% (price as of 2026-08-18)
Jan. 1, 2018	CHGG	F	449	$16.32	$7,328	179,504 Direct	-0.25%	Disposed	-95.3% (price as of 2026-08-18)
Oct. 1, 2017	CHGG	F	384	$14.84	$5,699	179,953 Direct	-0.21%	Disposed	-94.8% (price as of 2026-08-18)
July 1, 2017	CHGG	F	384	$12.29	$4,719	177,157 Direct	-0.22%	Disposed	-93.7% (price as of 2026-08-18)
April 1, 2017	CHGG	F	2,994	$8.44	$25,269	177,541 Direct	-1.66%	Disposed	-90.9% (price as of 2026-08-18)
March 1, 2017	CHGG	A	61,274	—	—	180,535 Direct	+51.38%	Acquired	(price as of 2026-08-18)
Feb. 24, 2017	CHGG	F	1,930	$8.20	$15,826	119,261 Direct	-1.59%	Disposed	-90.6% (price as of 2026-08-18)
Feb. 23, 2017	CHGG	F	8,566	$8.28	$70,926	121,191 Direct	-6.60%	Disposed	-90.7% (price as of 2026-08-18)
Feb. 1, 2017	CHGG	F	2,215	$7.02	$15,549	129,757 Direct	-1.68%	Disposed	-89.0% (price as of 2026-08-18)
Jan. 1, 2017	CHGG	F	447	$7.38	$3,299	131,972 Direct	-0.34%	Disposed	-89.6% (price as of 2026-08-18)
Oct. 1, 2016	CHGG	F	384	$7.09	$2,723	132,419 Direct	-0.29%	Disposed	-89.1% (price as of 2026-08-18)
July 1, 2016	CHGG	F	384	$5.06	$1,943	132,803 Direct	-0.29%	Disposed	-84.8% (price as of 2026-08-18)
April 1, 2016	CHGG	F	375	$4.29	$1,609	129,500 Direct	-0.29%	Disposed	-82.1% (price as of 2026-08-18)
March 7, 2016	CHGG	A	20,833	—	—	129,875 Direct	+19.11%	Acquired	(price as of 2026-08-18)
Feb. 24, 2016	CHGG	F	2,171	$4.12	$8,945	109,042 Direct	-1.95%	Disposed	-81.3% (price as of 2026-08-18)
Feb. 23, 2016	CHGG	A	12,897	—	—	58,931 Direct	+28.02%	Acquired	(price as of 2026-08-18)
Feb. 23, 2016	CHGG	F	1,884	$3.47	$6,537	57,047 Direct	-3.20%	Disposed	-77.8% (price as of 2026-08-18)
Feb. 23, 2016	CHGG	A	54,166	—	—	111,213 Direct	+94.95%	Acquired	(price as of 2026-08-18)
Feb. 1, 2016	CHGG	F	2,215	$5.77	$12,781	46,034 Direct	-4.59%	Disposed	-86.7% (price as of 2026-08-18)
Jan. 1, 2016	CHGG	F	447	$6.73	$3,008	48,249 Direct	-0.92%	Disposed	-88.6% (price as of 2026-08-18)
Oct. 1, 2015	CHGG	F	384	$7.13	$2,738	48,696 Direct	-0.78%	Disposed	-89.2% (price as of 2026-08-18)
July 1, 2015	CHGG	F	384	$7.65	$2,938	49,080 Direct	-0.78%	Disposed	-89.9% (price as of 2026-08-18)
April 1, 2015	CHGG	F	375	$7.77	$2,914	45,841 Direct	-0.81%	Disposed	-90.1% (price as of 2026-08-18)
Feb. 24, 2015	CHGG	F	2,248	$8.60	$19,333	46,216 Direct	-4.64%	Disposed	-91.0% (price as of 2026-08-18)
Feb. 2, 2015	CHGG	A	15,174	—	—	48,464 Direct	+45.58%	Acquired	(price as of 2026-08-18)
Jan. 1, 2015	CHGG	F	447	$6.91	$3,089	33,290 Direct	-1.32%	Disposed	-88.9% (price as of 2026-08-18)
Oct. 1, 2014	CHGG	A	16,337	—	—	33,737 Direct	+93.89%	Acquired	(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
March 1, 2021	CHGG	Performance Stock Units	Common Stock	—	March 1, 2025	14,587	Acquired
March 1, 2021	CHGG	Performance Stock Units	Common Stock	$0.00	March 1, 2025	0	Acquired
March 16, 2018	CHGG	Employee Stock Option (right to buy)	Common Stock (14,564)	$7.88	Feb. 14, 2022	14,564	Disposed
March 16, 2018	CHGG	Employee Stock Option (right to buy)	Common Stock (2,777)	$8.41	May 14, 2023	2,777	Disposed
March 16, 2018	CHGG	Employee Stock Option (right to buy)	Common Stock (13,889)	$8.41	May 14, 2023	13,889	Disposed
March 16, 2018	CHGG	Employee Stock Option (right to buy)	Common Stock (2,636)	$7.88	Feb. 14, 2022	2,636	Disposed
March 16, 2018	CHGG	Employee Stock Option (right to buy)	Common Stock (6,638)	$12.50	Nov. 11, 2023	6,638	Disposed
March 15, 2018	CHGG	Employee Stock Option (right to buy)	Common Stock (14,800)	$7.88	Feb. 14, 2022	14,800	Disposed

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

Initial ownership (Form 3) 5 holdings

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

Date	Ticker	Security	Shares	Ownership
May 22, 2014	CHGG	Common Stock	17,400	Direct
May 22, 2014	CHGG	Employee Stock Option (right to buy)→ Common Stock (32,000)	32,000	Direct
May 22, 2014	CHGG	Employee Stock Option (right to buy)→ Common Stock (16,666)	16,666	Direct
May 22, 2014	CHGG	Employee Stock Option (right to buy)→ Common Stock (16,666)	16,666	Direct
May 22, 2014	CHGG	Employee Stock Option (right to buy)→ Common Stock (20,000)	20,000	Direct