Richard Brezski

Insider

First SEC filing: Feb. 16, 2010 · Latest: Feb. 16, 2010

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

IDCC selling Feb. 21, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 96 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

96 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 22, 2026	IDCC	A	36	—	—	82,909 Direct	+0.04%	Acquired	(price as of 2026-08-20)
March 15, 2024	IDCC	A	8,862	—	—	107,398 Direct	+8.99%	Acquired	(price as of 2026-08-20)
March 15, 2024	IDCC	F	3,961	$102.59	$406,359	103,437 Direct	-3.69%	Disposed	238.4% (price as of 2026-08-20)
March 15, 2024	IDCC	D	0	$102.59	—	103,437 Direct	0.00%	Disposed	238.4% (price as of 2026-08-20)
March 15, 2024	IDCC	F	4,302	$102.59	$441,342	99,135 Direct	-4.16%	Disposed	238.4% (price as of 2026-08-20)
March 15, 2024	IDCC	D	1	$102.59	$103	99,134 Direct	0.00%	Disposed	238.4% (price as of 2026-08-20)
March 15, 2024	IDCC	A	10,235	—	—	109,369 Direct	+10.32%	Acquired	(price as of 2026-08-20)
Feb. 21, 2024	IDCC	S	11,302	$109.28	$1,235,083	98,536 Direct	-10.29%	Disposed	217.7% (price as of 2026-08-20)
Jan. 24, 2024	IDCC	A	82	—	—	109,838 Direct	+0.07%	Acquired	(price as of 2026-08-20)
Dec. 15, 2023	IDCC	D	0	$109.30	—	109,757 Direct	0.00%	Disposed	217.6% (price as of 2026-08-20)
Dec. 15, 2023	IDCC	F	336	$109.30	$36,725	109,757 Direct	-0.31%	Disposed	217.6% (price as of 2026-08-20)
Dec. 15, 2023	IDCC	A	736	—	—	110,093 Direct	+0.67%	Acquired	(price as of 2026-08-20)
Oct. 25, 2023	IDCC	A	111	—	—	109,357 Direct	+0.10%	Acquired	(price as of 2026-08-20)
July 26, 2023	IDCC	A	81	—	—	109,246 Direct	+0.07%	Acquired	(price as of 2026-08-20)
April 26, 2023	IDCC	A	109	—	—	109,165 Direct	+0.10%	Acquired	(price as of 2026-08-20)
March 31, 2023	IDCC	A	10,288	—	—	109,056 Direct	+10.42%	Acquired	(price as of 2026-08-20)
March 15, 2023	IDCC	D	1	$73.43	$73	98,768 Direct	0.00%	Disposed	372.8% (price as of 2026-08-20)
March 15, 2023	IDCC	F	5,977	$73.43	$438,891	98,769 Direct	-5.71%	Disposed	372.8% (price as of 2026-08-20)
March 15, 2023	IDCC	D	0	$73.43	—	104,746 Direct	0.00%	Disposed	372.8% (price as of 2026-08-20)
March 15, 2023	IDCC	F	11,646	$73.43	$855,166	104,746 Direct	-10.01%	Disposed	372.8% (price as of 2026-08-20)
March 15, 2023	IDCC	A	24,896	—	—	116,392 Direct	+27.21%	Acquired	(price as of 2026-08-20)
Feb. 28, 2023	IDCC	M	12,518	$54.93	$687,614	101,882 Direct	+14.01%	Acquired	532.1% (price as of 2026-08-20)
Feb. 28, 2023	IDCC	S	10,386	$73.77	$766,175	91,496 Direct	-10.19%	Disposed	370.6% (price as of 2026-08-20)
Feb. 28, 2023	IDCC	M	12,518	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 25, 2023	IDCC	A	129	—	—	89,364 Direct	+0.14%	Acquired	(price as of 2026-08-20)
Oct. 26, 2022	IDCC	A	177	—	—	89,235 Direct	+0.20%	Acquired	(price as of 2026-08-20)
July 27, 2022	IDCC	A	145	—	—	89,058 Direct	+0.16%	Acquired	(price as of 2026-08-20)
April 27, 2022	IDCC	A	153	—	—	88,913 Direct	+0.17%	Acquired	(price as of 2026-08-20)
March 15, 2022	IDCC	A	10,613	—	—	88,760 Direct	+13.58%	Acquired	(price as of 2026-08-20)
March 15, 2022	IDCC	D	1	$62.19	$62	78,147 Direct	0.00%	Disposed	458.3% (price as of 2026-08-20)
March 15, 2022	IDCC	F	2,319	$62.19	$144,219	78,148 Direct	-2.88%	Disposed	458.3% (price as of 2026-08-20)
March 15, 2022	IDCC	D	1	$62.19	$62	80,467 Direct	0.00%	Disposed	458.3% (price as of 2026-08-20)
March 15, 2022	IDCC	F	5,259	$62.19	$327,057	80,468 Direct	-6.13%	Disposed	458.3% (price as of 2026-08-20)
March 15, 2022	IDCC	A	709	—	—	85,727 Direct	+0.83%	Acquired	(price as of 2026-08-20)
March 15, 2022	IDCC	A	11,046	—	—	85,018 Direct	+14.93%	Acquired	(price as of 2026-08-20)
March 11, 2022	IDCC	M	10,796	—	—	0 Direct	—	Acquired	(price as of 2026-08-20)
March 11, 2022	IDCC	M	1,892	$52.85	$99,992	73,972 Direct	+2.62%	Acquired	556.9% (price as of 2026-08-20)
March 11, 2022	IDCC	M	8,904	$52.85	$470,576	72,080 Direct	+14.09%	Acquired	556.9% (price as of 2026-08-20)
March 11, 2022	IDCC	F	1,588	$63.00	$100,044	63,176 Direct	-2.45%	Disposed	451.1% (price as of 2026-08-20)
March 11, 2022	IDCC	F	7,914	$63.00	$498,582	64,764 Direct	-10.89%	Disposed	451.1% (price as of 2026-08-20)
Jan. 26, 2022	IDCC	A	114	—	—	72,678 Direct	+0.16%	Acquired	(price as of 2026-08-20)
Oct. 27, 2021	IDCC	A	113	—	—	72,564 Direct	+0.16%	Acquired	(price as of 2026-08-20)
Oct. 15, 2021	IDCC	D	1	$68.44	$68	72,451 Direct	0.00%	Disposed	407.3% (price as of 2026-08-20)
Oct. 15, 2021	IDCC	F	3,806	$68.44	$260,483	72,452 Direct	-4.99%	Disposed	407.3% (price as of 2026-08-20)
Oct. 15, 2021	IDCC	A	8,288	—	—	76,258 Direct	+12.19%	Acquired	(price as of 2026-08-20)
July 28, 2021	IDCC	A	113	—	—	67,970 Direct	+0.17%	Acquired	(price as of 2026-08-20)
April 28, 2021	IDCC	A	103	—	—	67,857 Direct	+0.15%	Acquired	(price as of 2026-08-20)
March 31, 2021	IDCC	A	10,402	—	—	67,753 Direct	+18.14%	Acquired	(price as of 2026-08-20)
March 15, 2021	IDCC	D	0	—	—	57,351 Direct	0.00%	Disposed	(price as of 2026-08-20)
March 15, 2021	IDCC	F	1,084	—	—	57,351 Direct	-1.86%	Disposed	(price as of 2026-08-20)
March 12, 2021	IDCC	M	16,737	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 12, 2021	IDCC	M	13,477	$30.69	$413,609	58,435 Direct	+29.98%	Acquired	1031.3% (price as of 2026-08-20)
March 12, 2021	IDCC	M	3,260	$30.69	$100,049	44,958 Direct	+7.82%	Acquired	1031.3% (price as of 2026-08-20)
March 12, 2021	IDCC	F	2,050	$66.41	$136,140	41,698 Direct	-4.69%	Disposed	422.8% (price as of 2026-08-20)
March 12, 2021	IDCC	F	8,475	$66.36	$562,401	43,748 Direct	-16.23%	Disposed	423.2% (price as of 2026-08-20)
Jan. 27, 2021	IDCC	A	72	—	—	52,223 Direct	+0.14%	Acquired	(price as of 2026-08-20)
Oct. 28, 2020	IDCC	A	86	—	—	52,151 Direct	+0.17%	Acquired	(price as of 2026-08-20)
July 22, 2020	IDCC	A	81	—	—	52,065 Direct	+0.16%	Acquired	(price as of 2026-08-20)
June 15, 2020	IDCC	D	1,249	$55.38	$69,170	51,985 Direct	-2.35%	Disposed	526.9% (price as of 2026-08-20)
June 15, 2020	IDCC	A	4,038	—	—	53,234 Direct	+8.21%	Acquired	(price as of 2026-08-20)
April 22, 2020	IDCC	A	51	—	—	49,196 Direct	+0.10%	Acquired	(price as of 2026-08-20)
March 31, 2020	IDCC	A	6,722	—	—	49,144 Direct	+15.85%	Acquired	(price as of 2026-08-20)
March 15, 2020	IDCC	F	668	$43.65	$29,158	42,423 Direct	-1.55%	Disposed	695.4% (price as of 2026-08-20)
March 15, 2020	IDCC	D	0	$43.65	—	42,422 Direct	0.00%	Disposed	695.4% (price as of 2026-08-20)
Jan. 22, 2020	IDCC	A	54	—	—	43,091 Direct	+0.13%	Acquired	(price as of 2026-08-20)
Jan. 17, 2020	IDCC	M	7,362	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 17, 2020	IDCC	F	6,139	$59.66	$366,253	43,037 Direct	-12.48%	Disposed	481.9% (price as of 2026-08-20)
Jan. 17, 2020	IDCC	M	7,362	$44.19	$325,327	49,176 Direct	+17.61%	Acquired	685.7% (price as of 2026-08-20)
Oct. 23, 2019	IDCC	A	56	—	—	41,814 Direct	+0.13%	Acquired	(price as of 2026-08-20)
July 24, 2019	IDCC	A	47	—	—	41,758 Direct	+0.11%	Acquired	(price as of 2026-08-20)
April 24, 2019	IDCC	A	47	—	—	41,711 Direct	+0.11%	Acquired	(price as of 2026-08-20)
March 15, 2019	IDCC	A	3,698	—	—	41,664 Direct	+9.74%	Acquired	(price as of 2026-08-20)
March 15, 2019	IDCC	D	0	$67.61	—	37,966 Direct	0.00%	Disposed	413.5% (price as of 2026-08-20)
March 15, 2019	IDCC	F	2,085	$67.61	$140,967	37,966 Direct	-5.21%	Disposed	413.5% (price as of 2026-08-20)
March 15, 2019	IDCC	A	6,739	—	—	40,051 Direct	+20.23%	Acquired	(price as of 2026-08-20)
March 15, 2019	IDCC	D	1	$67.61	$68	33,312 Direct	0.00%	Disposed	413.5% (price as of 2026-08-20)
March 15, 2019	IDCC	F	1,042	$67.61	$70,450	33,313 Direct	-3.03%	Disposed	413.5% (price as of 2026-08-20)
Jan. 23, 2019	IDCC	A	41	—	—	34,355 Direct	+0.12%	Acquired	(price as of 2026-08-20)
Oct. 24, 2018	IDCC	A	42	—	—	34,314 Direct	+0.12%	Acquired	(price as of 2026-08-20)
July 25, 2018	IDCC	A	23	—	—	34,271 Direct	+0.07%	Acquired	(price as of 2026-08-20)
July 16, 2018	IDCC	A	3,000	—	—	34,248 Direct	+9.60%	Acquired	(price as of 2026-08-20)
May 1, 2018	IDCC	A	25	—	—	31,248 Direct	+0.08%	Acquired	(price as of 2026-08-20)
March 15, 2018	IDCC	D	0	$75.00	—	31,224 Direct	0.00%	Disposed	362.9% (price as of 2026-08-20)
March 15, 2018	IDCC	F	5,188	$75.00	$389,100	31,224 Direct	-14.25%	Disposed	362.9% (price as of 2026-08-20)
March 15, 2018	IDCC	A	13,866	—	—	36,412 Direct	+61.50%	Acquired	(price as of 2026-08-20)
March 15, 2018	IDCC	D	0	$75.00	—	22,546 Direct	0.00%	Disposed	362.9% (price as of 2026-08-20)
March 15, 2018	IDCC	F	1,072	$75.00	$80,400	22,546 Direct	-4.54%	Disposed	362.9% (price as of 2026-08-20)
Jan. 24, 2018	IDCC	A	39	—	—	23,618 Direct	+0.17%	Acquired	(price as of 2026-08-20)
Oct. 25, 2017	IDCC	A	41	—	—	23,578 Direct	+0.17%	Acquired	(price as of 2026-08-20)
July 26, 2017	IDCC	A	34	—	—	23,538 Direct	+0.14%	Acquired	(price as of 2026-08-20)
April 26, 2017	IDCC	A	29	—	—	23,504 Direct	+0.12%	Acquired	(price as of 2026-08-20)
March 30, 2017	IDCC	A	2,039	—	—	23,475 Direct	+9.51%	Acquired	(price as of 2026-08-20)
March 20, 2017	IDCC	S 10b5-1	6,245	$85.15	$531,762	21,436 Direct	-22.56%	Disposed	307.7% (price as of 2026-08-20)
March 20, 2017	IDCC	S 10b5-1	3,755	$84.57	$317,560	27,681 Direct	-11.94%	Disposed	310.5% (price as of 2026-08-20)
March 15, 2017	IDCC	D	1	$85.45	$85	31,436 Direct	0.00%	Disposed	306.3% (price as of 2026-08-20)
March 15, 2017	IDCC	F	10,134	$85.45	$865,950	31,436 Direct	-24.38%	Disposed	306.3% (price as of 2026-08-20)
March 15, 2017	IDCC	A	23,871	—	—	41,570 Direct	+134.87%	Acquired	(price as of 2026-08-20)
March 15, 2017	IDCC	D	0	$85.45	—	17,700 Direct	0.00%	Disposed	306.3% (price as of 2026-08-20)
March 15, 2017	IDCC	F	2,897	$85.45	$247,549	17,700 Direct	-14.07%	Disposed	306.3% (price as of 2026-08-20)
Jan. 25, 2017	IDCC	A	41	—	—	20,597 Direct	+0.20%	Acquired	(price as of 2026-08-20)

Showing latest 100 of 186 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
Feb. 28, 2023	IDCC	Employee Stock Options (Right-to-Buy)	Common Stock (12,518)	$54.93	March 30, 2023	12,518	Disposed
March 11, 2022	IDCC	Employee Stock Option (Right-to-Buy)	Common Stock (10,796)	$52.85	March 15, 2022	10,796	Acquired
March 12, 2021	IDCC	Employee Stock Option (Right-to-Buy)	Common Stock (16,737)	$30.69	March 15, 2021	16,737	Disposed
Jan. 17, 2020	IDCC	Employee Stock Option (Right to Buy)	Common Stock (7,362)	$44.19	Jan. 18, 2020	7,362	Disposed
March 30, 2016	IDCC	Employee Stock Option (Right-to-Buy)	Common Stock (12,518)	$54.93	March 30, 2023	12,518	Acquired
March 15, 2015	IDCC	Employee Stock Option (Right-to-Buy)	Common Stock (10,796)	$52.85	March 15, 2022	10,796	Acquired
March 15, 2014	IDCC	Employee Stock Option (Right-to-Buy)	Common Stock (16,737)	$30.69	March 15, 2021	16,737	Acquired
Jan. 18, 2013	IDCC	Employee Stock Option (Right to Buy)	Common Stock (7,362)	$44.19	Jan. 18, 2020	7,362	Acquired
Nov. 16, 2010	IDCC	Options (Right-to-Buy)	Common Stock (5,834)	$23.59	May 5, 2013	5,834	Disposed

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.

IDCC

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$468,269	—	—	—	$634,125	—	$37,343	$3,239,737
2024	$440,000	—	—	—	$660,000	—	$29,961	$2,704,961
2023	$433,221	—	—	—	$442,200	—	$34,604	$2,035,025

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