Insiders · IDT

Irwin Katsof

Former Director at Idt Corp (IDT) since December 2024

Irwin Katsof has filed 9 insider reports with the SEC since January 2022, as former Director at Idt Corp (IDT), director at Genie Energy Ltd. (GNE) and director at Idw Media Holdings, Inc. (IDW). In the last 12 months Irwin Katsof sold $133K of stock on the open market. In the latest filing, on June 15, 2026, Irwin Katsof sold 2,408 shares of Idt Corp (IDT) for $133K at an average of $55.03.

Filings

9

Companies

3

Bought on market

None

Sold on market

$133K

Companies where Irwin Katsof is an insider

Shares held: common shares owned directly after the latest filing that states it. Avg buy: open-market purchase dollars divided by shares bought, every filing on record.

Every filing

• Jun 11, 2026
  IDTFormer Director Katsof Irwin sold $132,505 worth of Class B Common Stock (2,408 units at $55.03), closing all direct ownership in the company

  Form 4Open-market sale
  -$133K
• Jun 10, 2026
  GNEDirector Katsof Irwin was granted 2,190 units of Class B Common Stock

  Form 4Grant or award
• Jun 10, 2026
  GNENew insider Katsof Irwin claimed no ownership of stock in the company

  Form 3New insider
• Jan 5, 2026
  IDTDirector Katsof Irwin was granted 986 units of Class B Common Stock, increasing direct ownership by 69% to 2,408 units

  Form 4Grant or award
• Jan 6, 2025
  IDTDirector Katsof Irwin was granted 1,053 units of Class B Common Stock, increasing direct ownership by 285% to 1,422 units

  Form 4Grant or award
• Dec 12, 2024
  IDTDirector Katsof Irwin was granted 369 units of Class B Common Stock

  Form 4Grant or award
• Dec 12, 2024
  IDTNew insider Katsof Irwin claimed no ownership of stock in the company

  Form 3New insider
• Jan 5, 2023
  IDWSEC Form 4: Katsof Irwin was granted 5,941 units of Class B Common Stock, increasing direct ownership by 135% to 10,340 units

  Form 4Grant or award
• Jan 5, 2022
  IDWSEC Form 4: Katsof Irwin was granted 2,899 units of Class B Common Stock, increasing direct ownership by 193% to 4,399 units

  Form 4Grant or award

Also sits on boards with

Officers and directors who share two or more companies with Irwin Katsof.

• Howard S Jonas2 shared: GNE, IDW

Compare Irwin Katsof with

• Irwin Katsof vs Howard S Jonas3 shared
• Irwin Katsof vs Joyce J Mason2 shared
• Irwin Katsof vs Michael M Stein1 shared
• Irwin Katsof vs Avi Goldin1 shared
• Irwin Katsof vs Menachem Ash1 shared
• Irwin Katsof vs Eric F. Cosentino1 shared

Other insiders at the same companies

• Avi GoldinGNE
• Michael M SteinGNE
• Joyce J MasonIDT
• Menachem AshIDT
• Eric F. CosentinoIDT
• Marcelo FischerIDT
• William ConklingIDT
• Nadine SheaIDT
• Bill PereiraIDT
• Judah SchorrIDT
• Allan SassGNE
• William Wesley PerryGNE
• Alan B RosenthalGNE
• David WartellIDT
• Mitch SilbermanIDT

Questions about Irwin Katsof

What is Irwin Katsof's role at Idt Corp?

Irwin Katsof reports to the SEC as former Director at Idt Corp (IDT), according to the latest filing on June 15, 2026. Irwin Katsof has also filed as director at Genie Energy Ltd. (GNE) and director at Idw Media Holdings, Inc. (IDW).

How many shares does Irwin Katsof own?

After the latest filing that states it, Irwin Katsof directly owned 2,190 shares of Genie Energy Ltd. (GNE) and 10,340 shares of Idw Media Holdings, Inc. (IDW). Shares held through trusts, funds or family members are reported separately and are not counted here.

Has Irwin Katsof bought or sold stock recently?

The most recent open-market sale was on June 11, 2026: sold 2,408 shares of Idt Corp (IDT) for $133K at an average of $55.03.

How do I get alerts when Irwin Katsof files?

Follow Irwin Katsof on Quantisnow and you get an email, and a phone notification on Plus, within minutes of each new Form 4 or Form 5, and of each Form 144 notice of a planned sale.

From SEC Forms 3, 4, 5 and 144 filed by Irwin Katsof (SEC CIK 0001504515). Totals count each trade once, skipping amendments whose original is on file, from Jan 5, 2022 on. View on SEC EDGAR