IDT CORP-CLASS B (IDT) Institutional Ownership Changes & 13F Activity

IDT CORP-CLASS B (IDT). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC, Kahn Brothers Group, and Alta Fox Capital Management.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-28,793946,013$46,449,238
Q1 2026Kahn Brothers GroupSell-19,445372,566$18,292,990
Q1 2026Alta Fox Capital ManagementBuy8,48097,010$4,763,191
Q4 2025Renaissance Technologies LLCSell-77,700974,806$49,919,815
Q4 2025Kahn Brothers GroupSell-346392,011$20,074,883
Q3 2025Renaissance Technologies LLCSell-47,3331,052,506$55,056,589
Q3 2025Kahn Brothers GroupSell-4,207392,357$20,524,194
Q2 2025Alta Fox Capital ManagementSell-47,53088,530$6,048,370
Q2 2025Kahn Brothers GroupBuy31,028396,564$27,093,252
Q2 2025Renaissance Technologies LLCSell-12,1671,099,839$75,141,000
Q1 2025Kahn Brothers GroupBuy126,655365,536$18,756,060
Q1 2025Alta Fox Capital ManagementBuy37,125136,060$6,981,239
Q1 2025Renaissance Technologies LLCBuy31,3001,112,006$57,057,028
Q4 2024Alta Fox Capital ManagementSell-210,15498,935$4,701,391
Q4 2024Kahn Brothers GroupSell-91,347238,881$11,351,426
Q4 2024Renaissance Technologies LLCSell-44,2411,080,706$51,355,149
Q3 2024Alta Fox Capital ManagementBuy166,341309,089$11,797,927
Q3 2024Renaissance Technologies LLCBuy18,3411,124,947$42,939,227
Q3 2024Kahn Brothers GroupSell-1,279330,228$12,604,697
Q2 2024Alta Fox Capital ManagementSell-106,993142,748$5,127,508
Q2 2024Renaissance Technologies LLCBuy29,1001,106,606$39,749,288
Q2 2024Kahn Brothers GroupSell-14,041331,507$11,908,118
Q1 2024Alta Fox Capital ManagementBuy56,175249,741$9,442,707
Q1 2024Renaissance Technologies LLCSell-4,8001,077,506$40,741
Q1 2024Kahn Brothers GroupSell-1,544345,548$13,065,647
Q4 2023Alta Fox Capital ManagementBuy56,306193,566$6,598,665
Q4 2023Renaissance Technologies LLCBuy50,3091,082,306$36,896
Q4 2023Kahn Brothers GroupSell-1,971347,092$11,844,159
Q3 2023Renaissance Technologies LLCBuy11,6001,031,997$22,756
Q3 2023Kahn Brothers GroupSell-4,052349,063$7,696,465

Frequently asked questions about IDT activity

  • Which institutional owners are buying IDT?

    Institutional owners buying IDT include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IDT activity?

    "Buy" means an investor increased their reported position in IDT compared to the prior reporting period. This reflects growing exposure to IDT CORP-CLASS B (IDT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IDT increasing?

    Institutional interest in IDT can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.