13F Insight
DOSSIER · 13F Holders · Q1 2026Inflation hedgeYield
IDT

IDT CORP

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

CUSIP 448947507·207 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 6.2%
vs prior quarter
13F value held
$450M
74.0% inst. owned
of float
Holders
207
+113 QoQ
filers reporting
Activity
+8 / −10
+811 added · −851 reduced
this quarter
Concentration
19.36%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

207 institutions reported IDT in Q1 2026. BlackRock, Inc. leads at 19.4% of the visible book. +113 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$87M1.8M0.00%Q1 202602
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$46M946K0.07%Q1 202603
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$43M881K0.00%Q1 202604
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$39M788K0.01%Q1 202605
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$30M605K0.00%Q1 202606
STATE STREET CORP
CIK 0000093751
$26M535K0.00%Q1 202607
COOKE & BIELER LP
CIK 0000024386
$20M409K0.23%Q1 202608
DEUTSCHE BANK AG\
CIK 0000948046
$19M385K0.01%Q1 202609
KAHN BROTHERS GROUP INC
CIK 0001039565
$18M373K3.24%Q1 202610
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$14M291K0.06%Q1 202611
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$14M286K0.00%Q1 202612
Vanguard Portfolio Management
CIK 0002100121
$12M250K0.00%Q1 202613
D. E. Shaw & Co., Inc.
CIK 0001009207
$12M235K0.01%Q4 202514
MORGAN STANLEY
CIK 0000895421
$12M235K0.00%Q1 202615
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$11M223K0.00%Q1 202616
Nuveen, LLC
CIK 0001871926
$11M221K0.00%Q1 202617
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$10M196K0.00%Q1 202618
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$9M179K0.01%Q1 202619
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC
CIK 0001632972
$9M181K0.02%Q1 202620
Qube Research & Technologies Ltd
CIK 0001729829
$8M161K0.01%Q1 2026
Page 1 of 11
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