Shannon River Fund Management LLC Inter Digital, Inc. Transaction History

Shannon River Fund Management LLC

$612 Million
Q3 2025

A detailed history of Shannon River Fund Management LLC transactions in Inter Digital, Inc. stock. As of the latest transaction made, Shannon River Fund Management LLC holds 178,720 shares of IDCC stock, worth $60.6 Million. This represents 10.09% of its overall portfolio holdings.

Number of Shares

178,720

Previous 236,571 24.45%

Holding current value

$60.6 Million

Previous $53 Million 16.31%

% of portfolio

10.09%

Previous 7.82%

27 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 13, 2025	SELL	$221.35 - $349.23 $12.8 Million - $20.2 Million	-57,851 Reduced 24.45%	178,720 $61.7 Million
Q2 2025 Aug 13, 2025	BUY	$183.37 - $234.7 $2.12 Million - $2.72 Million	11,569 Added 5.14%	236,571 $53 Million
Q1 2025 May 14, 2025	SELL	$171.68 - $225.72 $26.9 Million - $35.4 Million	-156,643 Reduced 41.04%	225,002 $46.5 Million
Q4 2024 Feb 13, 2025	SELL	$142.61 - $200.59 $12.9 Million - $18.2 Million	-90,507 Reduced 19.17%	381,645 $73.9 Million
Q3 2024 Nov 13, 2024	BUY	$116.28 - $141.69 $3.34 Million - $4.07 Million	28,693 Added 6.47%	472,152 $66.9 Million

Q2 2024 Aug 13, 2024	BUY	$95.66 - $117.96 $7.14 Million - $8.81 Million	74,650 Added 20.24%	443,459 $51.7 Million
Q1 2024 May 14, 2024	SELL	$102.48 - $117.19 $10.7 Million - $12.2 Million	-103,998 Reduced 22.0%	368,809 $39.3 Million
Q4 2023 Feb 13, 2024	SELL	$75.03 - $111.33 $12.7 Million - $18.9 Million	-169,458 Reduced 26.38%	472,807 $51.3 Million
Q3 2023 Nov 13, 2023	BUY	$79.57 - $98.39 $1.89 Million - $2.34 Million	23,815 Added 3.85%	642,265 $51.5 Million
Q2 2023 Aug 11, 2023	SELL	$67.03 - $96.55 $1.62 Million - $2.34 Million	-24,188 Reduced 3.76%	618,450 $59.7 Million
Q1 2023 May 12, 2023	BUY	$56.22 - $74.61 $8.48 Million - $11.3 Million	150,890 Added 30.68%	642,638 $46.8 Million
Q4 2022 Feb 13, 2023	BUY	$45.3 - $50.75 $22.3 Million - $25 Million	491,748 New	491,748 $24.3 Million
Q2 2022 Aug 15, 2022	SELL	$56.42 - $66.84 $10 Million - $11.9 Million	-177,358 Reduced 37.27%	298,531 $18.2 Million
Q1 2022 May 16, 2022	SELL	$61.44 - $73.47 $13.1 Million - $15.7 Million	-213,669 Reduced 30.99%	475,889 $30.4 Million
Q4 2021 Feb 14, 2022	SELL	$65.96 - $73.93 $1.09 Million - $1.22 Million	-16,531 Reduced 2.34%	689,558 $49.4 Million
Q3 2021 Nov 15, 2021	BUY	$64.21 - $75.09 $45.3 Million - $53 Million	706,089 New	706,089 $47.9 Million
Q2 2021 Aug 16, 2021	SELL	$65.09 - $85.08 $40 Million - $52.3 Million	-614,150 Closed	0 $0
Q2 2021 Aug 16, 2021	SELL	$65.09 - $85.08 $38 Million - $49.7 Million	-584,524 Reduced 48.76%	614,150 $44.9 Million
Q1 2021 May 17, 2021	SELL	$61.05 - $68.94 $2.74 Million - $3.1 Million	-44,918 Reduced 3.61%	1,198,674 $76.1 Million
Q4 2020 Feb 16, 2021	SELL	$54.68 - $63.35 $2.46 Million - $2.85 Million	-44,954 Reduced 3.49%	1,243,592 $75.5 Million
Q3 2020 Nov 16, 2020	SELL	$55.34 - $65.69 $1.4 Million - $1.66 Million	-25,317 Reduced 1.93%	1,288,546 $73.5 Million
Q2 2020 Aug 14, 2020	BUY	$42.01 - $60.61 $4.35 Million - $6.27 Million	103,467 Added 8.55%	1,313,863 $74.4 Million
Q1 2020 May 15, 2020	BUY	$33.65 - $63.39 $7.09 Million - $13.4 Million	210,773 Added 21.09%	1,210,396 $54 Million
Q4 2019 Feb 14, 2020	BUY	$50.5 - $59.0 $16.7 Million - $19.5 Million	330,051 Added 49.29%	999,623 $54.5 Million
Q3 2019 Feb 14, 2020	BUY	$47.13 - $66.71 $31.6 Million - $44.7 Million	669,572 New	669,572 $35.1 Million
Q3 2019 Nov 14, 2019	SELL	$47.13 - $66.71 $21.4 Million - $30.2 Million	-453,247 Closed	0 $0
Q2 2019 Feb 14, 2020	BUY	$62.53 - $72.55 $28.3 Million - $32.9 Million	453,247 New	453,247 $29.2 Million

Others Institutions Holding IDCC

# of Institutions

614

Shares Held

25.5M

Call Options Held

1.11M

Put Options Held

161K

View Full List

About InterDigital, Inc.

Ticker IDCC
Exchange NASDAQ
Sector Communication Services
Industry Telecom Services
Shares Outstandng 29,657,200
Market Cap $10.1B
Description
InterDigital, Inc., together with its subsidiaries, designs and develops technologies that enable and enhance wireless communications in the United States, China, South Korea, Japan, Taiwan, and Europe. It provides technology solutions for use in digital cellular and wireless products and networks, including 2G, 3G, 4G, 5G, and IEEE 802-related ...

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Shannon River Fund Management LLC Inter Digital, Inc. Transaction History