IDT CORP-CLASS B (IDT) Stock Institutional Trading Activity


IDT CORP-CLASS B (IDT) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC, Kahn Brothers Group, and Alta Fox Capital Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q4 2017Renaissance Technologies LLCBuy78,1001,340,497$14,209
Q3 2017Renaissance Technologies LLCSell-55,8001,262,397$17,775
Q2 2017Renaissance Technologies LLCSell-88,9001,318,197$18,942
Q1 2017Renaissance Technologies LLCBuy25,7911,407,097$17,898
Q4 2016Renaissance Technologies LLCBuy58,1091,381,306$25,609
Q3 2016Renaissance Technologies LLCBuy38,9001,323,197$22,812
Q2 2016Renaissance Technologies LLCBuy25,4001,284,297$18,224
Q1 2016Renaissance Technologies LLCBuy49,4911,258,897$19,626
Q4 2015Renaissance Technologies LLCBuy62,6091,209,406$14,102
Q3 2015Renaissance Technologies LLCBuy38,2001,146,797$16,399
Q2 2015Renaissance Technologies LLCBuy40,3001,108,597$20,043
Q1 2015Renaissance Technologies LLCBuy68,6001,068,297$18,962
Q4 2014Renaissance Technologies LLCSell-17,189999,697$20,304
Q3 2014Renaissance Technologies LLCBuy73,7261,016,886$16,331
Q2 2014Renaissance Technologies LLCBuy37,263943,160$16,430
Q1 2014Renaissance Technologies LLCSell-19,809905,897$15,092
Q4 2013Renaissance Technologies LLCBuy67,200925,706$16,542
Q3 2013Renaissance Technologies LLCSell-36,700858,506$15,238
Q2 2013Renaissance Technologies LLCBuy895,206895,206$16,731

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.