Idt Corp. Class BIDT
13F holders, Q3 2025 (September 30)194holders +3
32new positions
27sold out
7famous investors
$52.23avg. 13F price*
At the end of Q3 2025, 194 institutions reported holding Idt Corp. Class B (IDT) in their 13F filings, up 3 from Q2 2025. 32 opened new positions and 27 sold out. The largest holders were BlackRock, Inc. ($89.3M), Vanguard Group Inc. ($68.4M) and Renaissance Technologies ($55.1M). 7 famous investors held it, including Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Idt Corp. Class B
- CUSIP
- 448947507
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 32 | $8.1M |
| Exits | 27 | $28.9M |
All 13F filers, Q2 2025 → Q3 2025: 1,670,634 shares bought and 1,459,678 shares sold, net +210,956 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 194 holders
| BlackRock, Inc. | 0.00% | Reduce -2.8% | 1,707,001 | $89.3M |
| Vanguard Group Inc. | 0.00% | Reduce -0.8% | 1,307,604 | $68.4M |
| Renaissance Technologies | 0.07% | Reduce -4.3% | 1,052,506 | $55.1M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -9.4% | 862,391 | $45.1M |
| First Trust Advisors LP | 0.03% | Add +98.8% | 642,301 | $33.6M |
| State Street Corp. | 0.00% | Add +5.2% | 530,642 | $27.8M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.3% | 458,581 | $24.0M |
| Acadian Asset Management LLC | 0.04% | Add +64.2% | 393,602 | $20.6M |
| Kahn Brothers Group Inc. | 3.86% | Reduce -1.1% | 392,357 | $20.5M |
| Deutsche Bank AG | 0.01% | Add +0.6% | 329,913 | $17.3M |
| Millennium Management | 0.01% | Add +230.0% | 316,722 | $16.6M |
| Wealth Enhancement Advisory Services, LLC | 0.02% | Add +15.0% | 325,104 | $15.5M |
| Nuveen, LLC | 0.00% | Add +9.4% | 294,279 | $15.4M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +12.2% | 289,373 | $15.1M |
| D. E. Shaw & Co. | 0.01% | Reduce -32.1% | 254,071 | $13.3M |
| Qube Research & Technologies Ltd | 0.02% | Add +34.3% | 248,579 | $13.0M |
| Morgan Stanley | 0.00% | Reduce -12.5% | 190,572 | $10.0M |
| Jacobs Levy Equity Management, Inc. | 0.04% | Add +408.7% | 169,146 | $8.8M |
| Northern Trust Corp. | 0.00% | Reduce -0.4% | 163,014 | $8.5M |
| Algert Global LLC | 0.13% | Add +63.9% | 150,996 | $7.9M |
| Cerity Partners LLC | 0.01% | Reduce -1.4% | 145,196 | $7.6M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -24.1% | 138,277 | $7.2M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +231.0% | 128,838 | $6.7M |
| Two Sigma Investments, LP | 0.01% | Add +7.1% | 123,569 | $6.5M |
| Bank of New York Mellon Corp | 0.00% | Add +0.7% | 114,500 | $6.0M |
| FMR LLC | 0.00% | Reduce -27.2% | 107,982 | $5.6M |
| Russell Investments Group, Ltd. | 0.01% | Add +13.2% | 97,251 | $5.3M |
| Barclays PLC | 0.00% | Reduce -4.1% | 91,677 | $4.8M |
| Trexquant Investment LP | 0.05% | Add +42.5% | 91,425 | $4.8M |
| JPMorgan Chase & Co. | 0.00% | Add +11.6% | 78,240 | $4.1M |
| AQR Capital Management | 0.00% | Add +24.5% | 75,560 | $4.0M |
| Panagora Asset Management Inc. | 0.02% | Add +0.4% | 73,626 | $3.9M |
| Lazard Asset Management LLC | 0.01% | Add +36.6% | 72,843 | $3.8M |
| American Century Companies Inc. | 0.00% | Add +25.7% | 71,864 | $3.8M |
| Pacer Advisors, Inc. | 0.01% | Reduce -19.9% | 70,335 | $3.7M |
| Cubist Systematic Strategies, LLC | 0.04% | Reduce -6.4% | 50,468 | $2.6M |
| CSM Advisors, LLC | 0.07% | Reduce -38.9% | 50,115 | $2.6M |
| Citadel Advisors | 0.00% | Reduce -37.3% | 50,094 | $2.6M |
| Squarepoint Ops LLC | 0.01% | New | 49,542 | $2.6M |
| Two Sigma Advisers, LP | 0.00% | Reduce -8.5% | 46,301 | $2.4M |
| Emmett Investment Management, LP | 1.85% | Reduce -42.1% | 46,409 | $2.4M |
| Man Group plc | 0.00% | Add +702.6% | 44,759 | $2.3M |
| Vest Financial, LLC | 0.03% | Add +143.1% | 43,120 | $2.3M |
| Alliancebernstein L.P. | 0.00% | Add +145.7% | 42,162 | $2.2M |
| Swiss National Bank | 0.00% | Add +1.5% | 41,200 | $2.2M |
| Susquehanna International Group, LLP | 0.00% | Reduce -21.3% | 39,920 | $2.1M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +72.4% | 37,322 | $2.0M |
| Franklin Resources Inc. | 0.00% | Add +2.9% | 32,665 | $1.7M |
| PDT Partners, LLC | 0.11% | No change | 31,893 | $1.7M |
| Legal & General Group Plc | 0.00% | Reduce -8.3% | 31,327 | $1.6M |
| HRT Financial LP | 0.01% | Add +208.0% | 30,646 | $1.6M |
| Engineers Gate Manager LP | 0.02% | Add +108.0% | 30,500 | $1.6M |
| Royce & Associates LP | 0.02% | Reduce -57.7% | 29,980 | $1.6M |
| Invesco Ltd. | 0.00% | Reduce -54.2% | 29,921 | $1.6M |
| Rhumbline Advisers | 0.00% | Reduce -2.5% | 29,188 | $1.5M |
| Americana Partners, LLC | 0.05% | No change | 29,166 | $1.5M |
| Victory Capital Management Inc. | 0.00% | Add +7.1% | 28,463 | $1.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -50.5% | 26,323 | $1.4M |
| Bank of America Corp. | 0.00% | Reduce -61.5% | 25,583 | $1.3M |
| Segall Bryant & Hamill, LLC | 0.02% | Reduce -0.5% | 25,510 | $1.3M |
| State Board of Administration of Florida Retirement System | 0.00% | Reduce -24.8% | 24,712 | $1.3M |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 0.01% | Add +45.2% | 24,400 | $1.3M |
| Wells Fargo & Company | 0.00% | Reduce -9.4% | 24,086 | $1.3M |
| Martingale Asset Management L P | 0.03% | Add +13.9% | 23,814 | $1.2M |
| O'shaughnessy Asset Management, LLC | 0.01% | Add +10.1% | 23,096 | $1.2M |
| BNP Paribas Financial Markets | 0.00% | Reduce -48.4% | 23,002 | $1.2M |
| Janus Henderson Group PLC | 0.00% | Add +133.1% | 20,235 | $1.1M |
| UBS Group AG | 0.00% | Add +90.3% | 19,840 | $1.0M |
| California State Teachers Retirement System | 0.00% | Add +26.9% | 19,481 | $1.0M |
| Sei Investments Co. | 0.00% | Add +10.4% | 19,062 | $997K |
| HSBC Holdings PLC | 0.00% | Reduce -28.6% | 17,658 | $946K |
| Ritholtz Wealth Management | 0.02% | Add +11.2% | 17,768 | $929K |
| Prudential Financial Inc. | 0.00% | Reduce -59.6% | 16,837 | $881K |
| Gotham Asset Management | 0.00% | Add +179.0% | 16,306 | $853K |
| Gsa Capital Partners LLP | 0.07% | Add +5.4% | 16,282 | $852K |
| Healthcare of Ontario Pension Plan Trust Fund | 0.00% | New | 16,100 | $842K |
| Los Angeles Capital Management LLC | 0.00% | Add +42.9% | 15,535 | $813K |
| Tudor Investment Corporation | 0.01% | Reduce -77.4% | 14,910 | $780K |
| Principal Financial Group Inc. | 0.00% | Add +183.0% | 14,489 | $758K |
| Teacher Retirement System of Texas | 0.00% | Reduce -21.0% | 13,593 | $711K |
| T. Rowe Price Associates Inc. | 0.00% | Add +5.9% | 13,137 | $688K |
| OP Asset Management Ltd | 0.01% | Reduce -38.8% | 12,759 | $667K |
| Dynamic Technology Lab Private Ltd | 0.11% | Add +5.0% | 12,290 | $643K |
| Hennion & Walsh Asset Management, Inc. | 0.02% | Add +17.1% | 12,182 | $637K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Add +145.0% | 11,949 | $625K |
| State of Wisconsin Investment Board | 0.00% | Add +28.0% | 11,848 | $620K |
| Campbell & CO Investment Adviser LLC | 0.04% | Reduce -14.8% | 11,194 | $586K |
| Susquehanna Fundamental Investments, LLC | 0.02% | Reduce -40.9% | 10,893 | $570K |
| STRS Ohio | 0.00% | Add +5.9% | 10,700 | $560K |
| PharVision Advisers, LLC | 0.30% | New | 10,123 | $530K |
| Moran Wealth Management, LLC | 0.01% | New | 9,511 | $498K |
| DRW Securities, LLC | 0.03% | New | 9,374 | $490K |
| MetLife Investment Management, LLC | 0.00% | Reduce -7.3% | 9,323 | $488K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -79.5% | 8,924 | $467K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -3.3% | 8,768 | $459K |
| Intech Investment Management LLC | 0.00% | Reduce -24.6% | 8,756 | $458K |
| Dark Forest Capital Management LP | 0.02% | Reduce -52.3% | 8,732 | $457K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0.01% | Add +33.8% | 8,663 | $453K |
| Wolverine Trading, LLC | 0.01% | New | 6,912 | $443K |
| Osaic Holdings, Inc. | 0.00% | Add +5.6% | 6,901 | $442K |
"% of holder's portfolio" is IDT's weight in each manager's 13F, not the share of Idt Corp. Class B the manager owns.