South Dakota Investment Council’s InterDigital IDCC Stock Holding History

South Dakota Investment Council’s Portfolio IDCC Stock Details IDCC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.54M	Sell	5,111 -2,000	-28%	-$680K	0.03%	356
2025 Q4	$2.26M	Sell	7,111 -820	-10%	-$290K	0.04%	296
2025 Q3	$2.74M	Sell	7,931 -600	-7%	-$163K	0.05%	263
2025 Q2	$1.91M	Sell	8,531 -264	-3%	-$55.9K	0.04%	330
2025 Q1	$1.82M	Sell	8,795 -291	-3%	-$58.6K	0.04%	321
2024 Q4	$1.76M	Sell	9,086 -3,700	-29%	-$647K	0.04%	331
2024 Q3	$1.81M	Hold	12,786	–	–	0.04%	334
2024 Q2	$1.49M	Sell	12,786 -15	-0.1%	-$1.6K	0.03%	349
2024 Q1	$1.36M	Sell	12,801 -500	-4%	-$52.9K	0.03%	372
2023 Q4	$1.44M	Hold	13,301	–	–	0.03%	404
2023 Q3	$1.07M	Buy	+13,301	New	+$1.16M	0.02%	436

Other funds holding IDCC

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

DGI

Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

South Dakota Investment Council's IDCC Position: Q1 2026 in Review

South Dakota Investment Council reduced its InterDigital (IDCC) stake by 28% in Q1 2026, selling an estimated $680K and leaving 5,111 shares worth $1.54M. The position accounts for 0.03% of the portfolio, ranked #356.

South Dakota Investment Council first reported a position in IDCC in Q3 2023 and has held it in 11 quarters since. The position peaked at $2.74M in Q3 2025. 572 funds tracked by Wall St. Rank hold IDCC as of Q1 2026.

South Dakota Investment Council held 5,111 shares of InterDigital worth $1.54M as of Q1 2026.
South Dakota Investment Council sold 2,000 InterDigital shares in Q1 2026, an estimated $680K.
InterDigital made up 0.03% of South Dakota Investment Council's portfolio in Q1 2026, its #356 holding.
South Dakota Investment Council first reported a position in InterDigital in Q3 2023 and has held it in 11 quarters since.
South Dakota Investment Council's InterDigital position peaked at $2.74M in Q3 2025.
572 funds tracked by Wall St. Rank held InterDigital as of Q1 2026.

Based on South Dakota Investment Council's 13F filing for Q1 2026, filed 18 May 2026.