Jeffrey K Belk

Insider

First SEC filing: June 7, 2010 · Latest: June 7, 2010

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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.

Insider at

IDCC selling June 15, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 55 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

55 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 25, 2018	IDCC	A	8	—	—	20,210 Direct	+0.04%	Acquired	(price as of 2026-08-20)
June 15, 2018	IDCC	S 10b5-1	555	$85.10	$47,230	20,202 Direct	-2.67%	Disposed	308.0% (price as of 2026-08-20)
June 14, 2018	IDCC	D	0	$85.30	—	20,757 Direct	0.00%	Disposed	307.0% (price as of 2026-08-20)
May 31, 2018	IDCC	A	1,903	—	—	20,757 Direct	+10.09%	Acquired	(price as of 2026-08-20)
May 1, 2018	IDCC	A	9	—	—	18,854 Direct	+0.05%	Acquired	(price as of 2026-08-20)
Jan. 24, 2018	IDCC	A	8	—	—	18,846 Direct	+0.04%	Acquired	(price as of 2026-08-20)
Oct. 25, 2017	IDCC	A	9	—	—	18,838 Direct	+0.05%	Acquired	(price as of 2026-08-20)
July 26, 2017	IDCC	A	7	—	—	18,829 Direct	+0.04%	Acquired	(price as of 2026-08-20)
June 14, 2017	IDCC	A	1,821	—	—	18,822 Direct	+10.71%	Acquired	(price as of 2026-08-20)
June 9, 2017	IDCC	S 10b5-1	800	$84.39	$67,512	17,001 Direct	-4.49%	Disposed	311.4% (price as of 2026-08-20)
June 8, 2017	IDCC	D	1	$84.25	$84	17,801 Direct	-0.01%	Disposed	312.1% (price as of 2026-08-20)
April 26, 2017	IDCC	A	9	—	—	17,802 Direct	+0.05%	Acquired	(price as of 2026-08-20)
Jan. 25, 2017	IDCC	A	9	—	—	17,793 Direct	+0.05%	Acquired	(price as of 2026-08-20)
Jan. 20, 2017	IDCC	S 10b5-1	2,773	$88.70	$245,965	17,784 Direct	-13.49%	Disposed	291.4% (price as of 2026-08-20)
Oct. 26, 2016	IDCC	A	10	—	—	20,557 Direct	+0.05%	Acquired	(price as of 2026-08-20)
July 27, 2016	IDCC	A	9	—	—	20,547 Direct	+0.04%	Acquired	(price as of 2026-08-20)
June 10, 2016	IDCC	D	0	$58.95	—	20,538 Direct	0.00%	Disposed	489.0% (price as of 2026-08-20)
June 8, 2016	IDCC	A	2,653	—	—	20,538 Direct	+14.83%	Acquired	(price as of 2026-08-20)
April 27, 2016	IDCC	A	9	—	—	17,885 Direct	+0.05%	Acquired	(price as of 2026-08-20)
Jan. 27, 2016	IDCC	A	12	—	—	17,876 Direct	+0.07%	Acquired	(price as of 2026-08-20)
Oct. 28, 2015	IDCC	A	10	—	—	17,864 Direct	+0.06%	Acquired	(price as of 2026-08-20)
July 22, 2015	IDCC	A	9	—	—	17,853 Direct	+0.05%	Acquired	(price as of 2026-08-20)
July 1, 2015	IDCC	D	1	$56.96	$57	17,844 Direct	-0.01%	Disposed	509.5% (price as of 2026-08-20)
July 1, 2015	IDCC	F	1,257	$56.96	$71,599	17,845 Direct	-6.58%	Disposed	509.5% (price as of 2026-08-20)
June 12, 2015	IDCC	D	0	$59.65	—	19,102 Direct	0.00%	Disposed	482.0% (price as of 2026-08-20)
June 12, 2015	IDCC	F	1,589	$59.65	$94,784	19,102 Direct	-7.68%	Disposed	482.0% (price as of 2026-08-20)
June 10, 2015	IDCC	A	2,628	—	—	20,691 Direct	+14.55%	Acquired	(price as of 2026-08-20)
April 29, 2015	IDCC	A	26	—	—	18,063 Direct	+0.14%	Acquired	(price as of 2026-08-20)
Jan. 28, 2015	IDCC	A	29	—	—	18,037 Direct	+0.16%	Acquired	(price as of 2026-08-20)
Dec. 22, 2014	IDCC	S 10b5-1	2,400	$53.63	$128,712	18,008 Direct	-11.76%	Disposed	547.4% (price as of 2026-08-20)
Oct. 22, 2014	IDCC	A	34	—	—	20,408 Direct	+0.17%	Acquired	(price as of 2026-08-20)
July 23, 2014	IDCC	A	32	—	—	20,374 Direct	+0.16%	Acquired	(price as of 2026-08-20)
June 12, 2014	IDCC	A	3,877	—	—	20,342 Direct	+23.55%	Acquired	(price as of 2026-08-20)
April 23, 2014	IDCC	A	10	—	—	16,465 Direct	+0.06%	Acquired	(price as of 2026-08-20)
Jan. 22, 2014	IDCC	A	11	—	—	16,456 Direct	+0.07%	Acquired	(price as of 2026-08-20)
Jan. 15, 2014	IDCC	D	0	$28.78	—	16,444 Direct	0.00%	Disposed	1106.4% (price as of 2026-08-20)
Jan. 15, 2014	IDCC	F	1,849	$28.78	$53,214	16,445 Direct	-10.11%	Disposed	1106.4% (price as of 2026-08-20)
Oct. 23, 2013	IDCC	A	21	—	—	18,294 Direct	+0.11%	Acquired	(price as of 2026-08-20)
July 24, 2013	IDCC	A	19	—	—	18,273 Direct	+0.10%	Acquired	(price as of 2026-08-20)
June 13, 2013	IDCC	A	3,253	—	—	18,254 Direct	+21.69%	Acquired	(price as of 2026-08-20)
June 7, 2013	IDCC	F	1,820	$46.25	$84,175	15,001 Direct	-10.82%	Disposed	650.7% (price as of 2026-08-20)
June 7, 2013	IDCC	D	1	$46.25	$46	16,821 Direct	-0.01%	Disposed	650.7% (price as of 2026-08-20)
April 24, 2013	IDCC	A	20	—	—	16,821 Direct	+0.12%	Acquired	(price as of 2026-08-20)
Dec. 28, 2012	IDCC	A	325	—	—	16,801 Direct	+1.97%	Acquired	(price as of 2026-08-20)
Oct. 24, 2012	IDCC	A	23	—	—	16,476 Direct	+0.14%	Acquired	(price as of 2026-08-20)
July 25, 2012	IDCC	A	29	—	—	16,453 Direct	+0.18%	Acquired	(price as of 2026-08-20)
June 7, 2012	IDCC	A	4,000	—	—	16,424 Direct	+32.20%	Acquired	(price as of 2026-08-20)
April 25, 2012	IDCC	A	12	—	—	12,424 Direct	+0.10%	Acquired	(price as of 2026-08-20)
Jan. 25, 2012	IDCC	A	11	—	—	12,412 Direct	+0.09%	Acquired	(price as of 2026-08-20)
Oct. 26, 2011	IDCC	A	9	—	—	12,401 Direct	+0.07%	Acquired	(price as of 2026-08-20)
July 27, 2011	IDCC	A	6	—	—	12,392 Direct	+0.05%	Acquired	(price as of 2026-08-20)
June 3, 2011	IDCC	D	0	$37.88	—	12,386 Direct	0.00%	Disposed	816.6% (price as of 2026-08-20)
June 2, 2011	IDCC	A	4,000	—	—	12,386 Direct	+47.70%	Acquired	(price as of 2026-08-20)
April 27, 2011	IDCC	A	8	—	—	8,386 Direct	+0.10%	Acquired	(price as of 2026-08-20)
March 30, 2011	IDCC	D	0	$47.97	—	8,378 Direct	0.00%	Disposed	623.8% (price as of 2026-08-20)
Feb. 2, 2011	IDCC	A	16	—	—	8,378 Direct	+0.19%	Acquired	(price as of 2026-08-20)
June 3, 2010	IDCC	A	4,000	—	—	8,362 Direct	+91.70%	Acquired	(price as of 2026-08-20)
March 30, 2010	IDCC	A	362	—	—	4,362 Direct	+9.05%	Acquired	(price as of 2026-08-20)
March 30, 2010	IDCC	A	4,000	—	—	4,000 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.