IDT · Idt Corp · Insider Trading

$70.51 +1.09 (+1.57%) At close · Sep 11

Russell 2000 member Rebalance outlook locked

Customer concentration — top 5 customers 8.9% of revenue

5 customers — 8.9% of revenue (fiscal 2025)

“While they may vary from quarter to quarter, our five largest customers collectively accounted for 8.9%, 10.3%, and 10.8% of our consolidated revenues in fiscal 2025, fiscal 2024, and fiscal 2023, respectively.”

5 customers — 10.3% of revenue (fiscal 2024)

“While they may vary from quarter to quarter, our five largest customers collectively accounted for 8.9%, 10.3%, and 10.8% of our consolidated revenues in fiscal 2025, fiscal 2024, and fiscal 2023, respectively.”

5 customers — 10.8% of revenue (fiscal 2023)

“While they may vary from quarter to quarter, our five largest customers collectively accounted for 8.9%, 10.3%, and 10.8% of our consolidated revenues in fiscal 2025, fiscal 2024, and fiscal 2023, respectively.”

5 customers — 20.4% of receivables (July 31, 2025)

“Our customers with the five largest receivables balance collectively accounted for 20.4% and 22.7% of our consolidated gross trade accounts receivable at July 31, 2025 and 2024, respectively.”

5 customers — 22.7% of receivables (July 31, 2024)

“Our customers with the five largest receivables balance collectively accounted for 20.4% and 22.7% of our consolidated gross trade accounts receivable at July 31, 2025 and 2024, respectively.”

View the 10-K filed Sep 29, 2025

Market Cap

$1.75B

24.87M

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 4 and 5. Form 3 supplies initial ownership rather than a trade; Form 4 must be filed within two business days of the trade.

Query insider transactions through the insider trading API or MCP →

Insider Sentiment Score

Peer-relative 0–100 rank of how aggressively insiders accumulated over the trailing 90 days. See the full ranking.

Net buyers

-4

Net shares bought

-0.14%

Net buy value

-$2,115,547

Date	Insider	Role	Type	Security	Shares	Price	Value	After
2026-08-31	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	1,165	—	—	45,388
2026-07-17	MASON JOYCE J	Director	Sell↓	Class B Common Stock, par value $.01 per share	3,488	$62.56	$218,195	35,441
2026-07-17	MASON JOYCE J	Director	Sell↓	Class B Common Stock, par value $.01 per share (I)	505	$62.58	$31,601	12,522
2026-07-16	ASH MENACHEM	President	Sell↓	Class B Common Stock, $.01 par value per share	3,653	$63.17	$230,752	24,193
2026-07-15	ASH MENACHEM	President	Sell↓	Class B Common Stock, $.01 par value per share	4,397	$63.02	$277,085	27,846
2026-06-30	COSENTINO ERIC F.	Director	Sell↓ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Consists of fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	500	$57.78	$28,890	539
2026-06-26	FISCHER MARCELO	Chief Financial Officer	Sell↓	Class B Common Stock, $.01 par value per share	23,323	$56.98	$1,329,024	32,824
2026-06-23	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	2,217	—	—	46,553
2026-06-11	KATSOF IRWIN	Director	Sell↓	Class B Common Stock, par value $.01 per share	2,408	$55.03	$132,505	0
2026-06-09	CONKLING WILLIAM	Chief Executive Officer	Award↑ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Grant of Restricted Stock that vests in full immediately. Consists of fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	673	$55.75	$37,520	673
2026-06-08	SHEA NADINE	EVP of GLOBAL HUMAN RESOURCES	Sell↓ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 8,725 shares of Class B common stock issued upon the vesting of DSUs.	Class B Common Stock, par value $.01 per share	500	$55.32	$27,661	8,725
2026-05-07	MASON JOYCE J	Director	Gift↑	Class B Common Stock, par value $.01 per share (I)	722	—	—	13,027
2026-05-07	MASON JOYCE J	Director	Gift↑	Class B Common Stock, par value $.01 per share (I)	722	—	—	29,430
2026-05-07	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	7,942	—	—	48,770
2026-05-07	MASON JOYCE J	Director	Gift↑ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 10,262 shares of Class B common stock issued upon the vesting of DSUs, 4,785 fully vested shares of Restricted Stock, 1,396 shares purchased through the Issuer's Employee Stock Purchase Program and 22,486 shares held by the Reporting Person directly.	Class B Common Stock, par value $.01 per share	722	—	—	38,929
2026-05-05	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	1,175	—	—	56,712
2026-04-16	MASON JOYCE J	Director	Sell↓	Class B Common Stock, par value $.01 per share (I)	907	$50.94	$46,206	12,305
2026-04-16	MASON JOYCE J	Director	Sell↓ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 12,559 shares of Class B common stock issued upon the vesting of DSUs, 2,488 fully vested shares of Restricted Stock, 1,396 shares purchased through the Issuer's Employe Stock Purchase Program and 21,764 shares held by the Reporting Person directly.	Class B Common Stock, par value $.01 per share	2,297	$50.94	$117,009	38,207
2026-04-16	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	600	—	—	57,887
2026-04-14	ASH MENACHEM	President	Sell↓ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Consists of 4,456 shares of Stock issued upon the vesting of DSUs and 27,787 fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	20,000	$51.00	$1,020,000	32,243
2026-04-14	FISCHER MARCELO	Chief Financial Officer	Sell↓ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 1,701 fully vested shares of Restricted Stock, 49,242 shares of Class B Common Stock issued upon the vesting of DSUs and 5,204 shares of Class B Common Stock issued upon the exercise of stock options.	Class B Common Stock, par value $.01 per share	5,000	$50.50	$252,500	56,147
2026-02-17	ASH MENACHEM	President	Convert↑ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Under the terms of the IDT Corporation Equity Growth Program, due to the market price of the Issuer's Class B common stock ("Stock") on the applicable vesting date of February 17, 2026 as compared to the Grant Price of the Deferred Stock Units ("DSUs") ($50.90), the Reporting Person received 1.0 share of Stock for each of the DSUs that vested. The Reporting Person had the option on 1/19/2026 to defer vesting to the next scheduled vesting of 2/16/2027. He elected to defer vesting of 833 DSUs that vested, entitling him to receive 834 shares of Stock. Consists of 19,688 shares of Stock issued upon the vesting of DSUs and 32,902 fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	834	$48.45	$40,407	52,590
2026-02-17	ASH MENACHEM	President	Convert↓ Filing footnotes — Deferred Stock Units (Direct) Represents 834 DSUs that vested on 2/17/2026. The 834 shares of Stock that were issued is equal to 1.0 share per vested DSU and was based on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 2,500 and 20,000 shares of Stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	834	—	—	4,166
2026-02-17	ASH MENACHEM	President	Tax↓ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Represents shares withheld by the Issuer for tax purposes upon the vesting of DSUs. Consists of 19,341 shares of Stock issued upon the vesting of DSUs and 32,902 fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	347	$48.45	$16,812	52,243
2026-01-28	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	2,214	—	—	58,487
2026-01-16	FISCHER MARCELO	Chief Financial Officer	Convert↓ Filing footnotes — Employee Stock Option (right to buy) (Direct) Options vest as follows: 6,032 on October 15, 2025 (of which 5,204 were exercised on January 16, 2026 as indicated herein); and 6,031 on each of October 15, 2026 and October 25, 2027.	Employee Stock Option (right to buy)	5,204	—	—	12,890
2026-01-16	FISCHER MARCELO	Chief Financial Officer	Convert↑ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 1,701 fully vested shares of Restricted Stock, 54,242 shares of Class B Common Stock issued upon the vesting of DSUs and 5,204 shares of Class B Common Stock issued upon the exercise of stock options.	Class B Common Stock, par value $.01 per share	5,204	$38.43	$199,990	61,147
2026-01-16	MASON JOYCE J	Director	Sell↓	Class B Common Stock, par value $.01 per share (I)	2,505	$50.29	$125,964	28,708
2026-01-15	PEREIRA BILL	Director, COO & President	Sell↓	Class B Common Stock, $.01 par value per share	7,287	$51.17	$372,876	35,213
2026-01-15	FISCHER MARCELO	Chief Financial Officer	Sell↓ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 1,701 fully vested shares of Restricted Stock and 54,242 shares of Class B Common Stock issued upon the vesting of DSUs.	Class B Common Stock, par value $.01 per share	920	$52.04	$47,879	55,943
2026-01-14	FISCHER MARCELO	Chief Financial Officer	Sell↓ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 2,621 fully vested shares of Restricted Stock and 54,242 shares of Class B Common Stock issued upon the vesting of DSUs.	Class B Common Stock, par value $.01 per share	7,009	$52.03	$364,702	56,863
2026-01-08	FISCHER MARCELO	Chief Financial Officer	Sell↓ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 9,630 fully vested shares of Restricted Stock and 54,242 shares of Class B Common Stock issued upon the vesting of DSUs.	Class B Common Stock, par value $.01 per share	641	$52.29	$33,516	63,872
2026-01-05	SCHORR JUDAH	Director	Award↑ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Grant of Restricted Stock that vests in full immediately. Consists of 72,425 fully vested shares of Restricted Stock and 50,000 shares held directly.	Class B Common Stock, par value $.01 per share	986	$50.74	$50,025	122,425
2026-01-05	COSENTINO ERIC F.	Director	Award↑ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Grant of Restricted Stock that vests in full immediately. Consists of fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	986	$50.74	$50,025	1,039
2026-01-05	KATSOF IRWIN	Director	Award↑ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Grant of Restricted Stock that vests in full immediately. Consists of fully vested shares of Restricted Stock.	Class B Common Stock, par value $.01 per share	986	$50.74	$50,025	2,408
2025-12-29	JONAS HOWARD S	Director, 10% Owner	Other↓ Filing footnotes — Class B Common Stock, $.01 par value per share (Indirect) Transfer from the Debbie Y. Jonas 2018 Dynasty Trust to the Howard S. & Deborah Jonas Foundation, Inc., which is not beneficially owned by the Reporting Person.	Class B Common Stock, $.01 par value per share (I)	97,163	—	—	114,106
2025-12-17	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	1,150	—	—	60,701
2025-11-25	MASON JOYCE J	Director	Gift↑	Class B Common Stock, par value $.01 per share (I)	1,000	—	—	31,213
2025-11-25	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	1,000	—	—	61,851
2025-10-10	COSENTINO ERIC F.	Director	Sell↓ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Consists of fully vested shares of Restricted Stock.	Class B Common Stock, $.01 par value per share	200	$47.61	$9,523	53
2025-10-02	PEREIRA BILL	Director, COO & President	Sell↓ Filing footnotes — Class B Common Stock, $.01 par value per share (Direct) Consists of 5,055 fully vested shares of Restricted Stock and 37,445 fully vested shares of Class B Common Stock issued upon the vesting of DSUs.	Class B Common Stock, $.01 par value per share	41,933	$49.63	$2,081,168	42,500
2025-09-18	MASON JOYCE J	Director	Award↑ Filing footnotes — Deferred Stock Units (Direct) Represents grant of 2,000 DSUs vesting ratably on 2/17/2026, 2/16/2027 and 2/15/2028, with the recipient having the option on 1/19/2026 and 1/18/2027 to defer vesting to the next scheduled vesting. The number of shares of Class B common stock that will be issued depends on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 1,000 and 8,000 shares of Class B common stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Class B common stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Class B common stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	2,000	—	—	2,000
2025-09-18	PEREIRA BILL	Director, COO & President	Award↑ Filing footnotes — Deferred Stock Units (Direct) Represents grant of 15,000 DSUs vesting ratably on 2/17/2026, 2/16/2027 and 2/15/2028, with the recipient having the option on 1/19/2026 and 1/18/2027 to defer vesting to the next scheduled vesting. The number of shares of Class B common stock that will be issued depends on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 7,500 and 60,000 shares of Class B common stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Class B common stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Class B common stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	15,000	—	—	15,000
2025-09-18	WARTELL DAVID	CHIEF TECHNOLOGY OFFICER	Award↑ Filing footnotes — Deferred Stock Units (Direct) Represents grant of 5,000 DSUs vesting ratably on 2/17/2026, 2/16/2027 and 2/15/2028, with the recipient having the option on 1/19/2026 and 1/18/2027 to defer vesting to the next scheduled vesting. The number of shares of Class B common stock that will be issued depends on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 2,500 and 20,000 shares of Class B common stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Class B common stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Class B common stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	5,000	—	—	5,000
2025-09-18	FISCHER MARCELO	Chief Financial Officer	Award↑ Filing footnotes — Deferred Stock Units (Direct) Represents grant of 15,000 DSUs vesting ratably on 2/17/2026, 2/16/2027 and 2/15/2028, with the recipient having the option on 1/19/2026 and 1/18/2027 to defer vesting to the next scheduled vesting. The number of shares of Class B common stock that will be issued depends on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 7,500 and 60,000 shares of Class B common stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Class B common stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Class B common stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	15,000	—	—	15,000
2025-09-18	ASH MENACHEM	President	Award↑ Filing footnotes — Deferred Stock Units (Direct) Represents grant of 5,000 DSUs vesting ratably on 2/17/2026, 2/16/2027 and 2/15/2028, with the recipient having the option on 1/19/2026 and 1/18/2027 to defer vesting to the next scheduled vesting. The number of shares of Class B common stock that will be issued depends on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 2,500 and 20,000 shares of Class B common stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Class B common stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Class B common stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	5,000	—	—	5,000
2025-09-18	SHEA NADINE	EVP of GLOBAL HUMAN RESOURCES	Award↑ Filing footnotes — Deferred Stock Units (Direct) Represents grant of 2,000 DSUs vesting ratably on 2/17/2026, 2/16/2027 and 2/15/2028, with the recipient having the option on 1/19/2026 and 1/18/2027 to defer vesting to the next scheduled vesting. The number of shares of Class B common stock that will be issued depends on the Market Price on the applicable vesting date as compared to the Grant Price of the DSUs ($50.90), with no less than 0.5 shares (Market Price less than $25.45) and no more than 4.0 shares (Market Price greater than $101.80), to be issued for each DSU vested. Upon vesting of all of the DSUs, between 1,000 and 8,000 shares of Class B common stock will have been issued. "Market Price" for each vesting date will be the greater of (i) the closing price for the Class B common stock on the trading date immediately prior to such vesting date, and (ii) the average of the closing prices of the Class B common stock for the 20 trading days ending with the trading day immediately prior to such vesting date.	Deferred Stock Units	2,000	—	—	2,000
2025-07-17	MASON JOYCE J	Director	Gift↑	Class B Common Stock, par value $.01 per share (I)	650	—	—	13,212
2025-07-17	MASON JOYCE J	Director	Gift↑ Filing footnotes — Class B Common Stock, par value $.01 per share (Direct) Consists of 12,559 shares of Class B common stock issued upon the vesting of DSUs, 4,785 fully vested shares of Restricted Stock, 1,396 shares purchased through the Issuer's Employee Stock Purchase Program and 21,764 shares held by the Reporting Person directly.	Class B Common Stock, par value $.01 per share	650	—	—	40,504
2025-07-17	JONAS HOWARD S	Director, 10% Owner	Gift↓	Class B Common Stock, $.01 par value per share	7,150	—	—	62,851

Legend Buy — open-market purchase Sell — open-market sale ↑ Shares acquired ↓ Shares disposed (gift, conversion, tax…)

Showing 1–50 of 306 transactions

Key facts CIK 1005731 CUSIP 448947507 13F (30d) 11 filings 11 filers Visit website