DOSSIER · 13F Holders · Q2 2026
IDT

IDT CORP

212 institutions still hold IDT CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 448947507·212 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$566M
visible holders
Holders
212
filers reporting
Concentration
19.75%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

212 institutions reported IDT in Q2 2026. BlackRock, Inc. leads at 19.7% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$112M1.9M0.00%Q2 2026
02
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$52M887K0.00%Q2 2026
03
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$51M879K0.07%Q2 2026
04
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$45M780K0.01%Q2 2026
05
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$38M653K0.00%Q2 2026
06
STATE STREET CORP
CIK 0000093751
$36M617K0.00%Q2 2026
07
FIRST TRUST ADVISORS LP
CIK 0001125816· Index
$30M513K0.02%Q2 2026
08
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$24M417K0.01%Q2 2026
09
DEUTSCHE BANK AG\
CIK 0000948046
$22M387K0.01%Q2 2026
10
KAHN BROTHERS GROUP INC
CIK 0001039565
$20M352K3.23%Q2 2026
11
MORGAN STANLEY
CIK 0000895421
$20M343K0.00%Q2 2026
12
Nuveen, LLC
CIK 0001871926
$16M272K0.00%Q2 2026
13
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$15M255K0.00%Q2 2026
14
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 0000884414
$14M291K0.06%Q1 2026
15
Vanguard Portfolio Management
CIK 0002100121· Index
$14M245K0.00%Q2 2026
16
COOKE & BIELER LP
CIK 0000024386
$14M242K0.16%Q2 2026
17
D. E. Shaw & Co., Inc.
CIK 0001009207
$12M235K0.01%Q4 2025
18
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$11M186K0.00%Q2 2026
19
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC
CIK 0001632972
$10M160K0.02%Q2 2026
20
NORTHERN TRUST CORP
CIK 0000073124· Index
$10M168K0.00%Q2 2026
Page 1 of 11
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Insiders at IDT CORP
Jonas Howard SMason Joyce JCosentino Eric F.Fischer MarceloKatsof IrwinConkling WilliamShea NadineAsh Menachem