13F Insight
DOSSIER · 13F Holders · Q1 2026
IDCC 3.5 06/01/27

INTERDIGITAL INC

30 institutions still hold INTERDIGITAL INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 45867GAD3·30 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$1.1B
visible holders
Holders
30
filers reporting
Concentration
22.29%
Polar Asset Management Partners Inc. #1
top holder share
AI Holders Summary · Q1 2026

30 institutions reported IDCC 3.5 06/01/27 in Q1 2026. Polar Asset Management Partners Inc. leads at 22.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Polar Asset Management Partners Inc.
CIK 0001326389
$243M61.8M4.84%Q1 202602
DeepCurrents Investment Group LLC
CIK 0001754535
$163M41.8M5.24%Q1 202603
CAPSTONE INVESTMENT ADVISORS, LLC
CIK 0001426196
$135M34.5M0.23%Q1 202604
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$117M30.0M0.70%Q1 202605
BNP PARIBAS FINANCIAL MARKETS
CIK 0001166588
$105M27.0M0.05%Q1 202606
Aequim Alternative Investments LP
CIK 0001728201
$87M22.3M1.69%Q1 202607
NOMURA HOLDINGS INC
CIK 0001163653
$46M153K0.12%Q1 202608
Calamos Advisors LLC
CIK 0001316507
$37M10.1M0.12%Q2 202609
STATE STREET CORP
CIK 0000093751
$34M8.7M0.00%Q1 202610
BlackRock, Inc.
CIK 0002012383
$29M7.3M0.00%Q1 202611
FMR LLC
CIK 0000315066
$18M4.6M0.00%Q1 202612
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$14M3.6M0.01%Q1 202613
LOOMIS SAYLES & CO L P
CIK 0000312348
$14M46K0.02%Q1 202614
LORD, ABBETT & CO. LLC
CIK 0000728100
$12M3.2M0.04%Q1 202615
THRIVENT FINANCIAL FOR LUTHERANS
CIK 0000314984
$12M3.0M0.02%Q1 202616
SSI INVESTMENT MANAGEMENT LLC
CIK 0000938487
$7M1.7M0.46%Q1 202617
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$6M1.6M0.00%Q1 202618
Union Bancaire Privee, UBP SA
CIK 0001716607
$4M1.2M0.04%Q2 202619
Alken Asset Management Ltd
CIK 0001629996
$3M8505.94%Q1 202620
Delaware Management Holdings, Inc.
CIK 0000921739
$2M525K0.00%Q1 2026
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