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Shannon River Fund Management’s InterDigital IDCC Stock Holding History

Shannon River Fund Management’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
2024
Q1 		– Sell
-472,800
Closed -$51.3M – 23
2023
Q4 		$51.3M Buy
+472,800
New +$43.8M 9.38% 3

Other funds holding IDCC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
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 Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
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
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

Shannon River Fund Management's IDCC Position: Q1 2026 in Review

Shannon River Fund Management increased its InterDigital (IDCC) stake by 1.1% in Q1 2026, buying an estimated $209K and bringing the position to 54,104 shares worth $16.3M. The position accounts for 3.12% of the portfolio, ranked #12.

Shannon River Fund Management first reported a position in IDCC in Q2 2013 and has held it in 40 quarters since. The position peaked at $76.1M in Q1 2021. 570 funds tracked by Wall St. Rank hold IDCC as of Q1 2026.

  • Shannon River Fund Management held 54,104 shares of InterDigital worth $16.3M as of Q1 2026.
  • Shannon River Fund Management bought 614 InterDigital shares in Q1 2026, an estimated $209K.
  • InterDigital made up 3.12% of Shannon River Fund Management's portfolio in Q1 2026, its #12 holding.
  • Shannon River Fund Management first reported a position in InterDigital in Q2 2013 and has held it in 40 quarters since.
  • Shannon River Fund Management's InterDigital position peaked at $76.1M in Q1 2021.
  • 570 funds tracked by Wall St. Rank held InterDigital as of Q1 2026.

Based on Shannon River Fund Management's 13F filing for Q1 2026, filed 14 May 2026.