IDT
IDT · NYSE
$84.46+$2.64 (+3.23%)TodayMarket closed ·
Prev close $81.82
Who owns IDT
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 36.7% of IDT’s shares.
- Jonas (Howard S)10.5%
- BlackRock Institutional Trust Company, N.A.5.6%
- Vanguard Capital Management, LLC3.6%
- Renaissance Technologies LLC3.5%
- Next 6 largest institutions13.5%
- All other shareholders63.3%
| Holder | Shares | % of shares |
|---|---|---|
| Jonas (Howard S) | 2.61M | 10.51% |
| BlackRock Institutional Trust Company, N.A. | 1.40M | 5.63% |
| Vanguard Capital Management, LLC | 887.21K | 3.57% |
| Renaissance Technologies LLC | 879.01K | 3.53% |
| Dimensional Fund Advisors, L.P. | 779.84K | 3.14% |
| Geode Capital Management, L.L.C. | 653.07K | 2.63% |
| State Street Investment Management (US) | 616.84K | 2.48% |
| First Trust Advisors L.P. | 512.87K | 2.06% |
| American Century Investment Management, Inc. | 416.98K | 1.68% |
| DWS Investment Management Americas, Inc. | 368.77K | 1.48% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 632.10K | 2.54% |
| First Trust SMID Cap Rising Dividend Achievers ETF | 439.74K | 1.77% |
| iShares Russell 2000 ETF | 421.18K | 1.69% |
| DWS Small Cap Core Fund | 367.86K | 1.48% |
| Vanguard Extended Market Index Fund | 234.80K | 0.94% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $2.76M (15 trades) of IDT on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| SCHORR JUDAH | Sale | 7.72K | $629.46K |
| SILBERMAN MITCH | Option exercise | 1.74K | — |
| SILBERMAN MITCH | Sale | 2.33K | $188.56K |
| SILBERMAN MITCH | Tax withholding | 1.15K | $93.85K |
| SILBERMAN MITCH | Option exercise | 3.47K | $284.26K |
| SCHORR JUDAH | Sale | 6.04K | $493.52K |
| SILBERMAN MITCH | Sale | 805 | $66.12K |
| MASON JOYCE J | Sale | 1.15K | $92.57K |
| SILBERMAN MITCH | Tax withholding | 367 | $29.17K |
| COSENTINO ERIC F. | Sale | 500 | $39.27K |
Short interest
Settled Sep 30, 2026
- Shares short
- 745.98K
- Days to cover
- 1.61
- % of shares outstanding
- 3.00%
- Average daily volume
- 462.64K
- Change since last report
- +34.1%
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