Dimensional Fund Advisors Lp ownership in IDT / IDT Corporation

IDT Corporation

US ˙ NYSE ˙ US4489475073

Security	IDT / IDT Corporation
Institution	Dimensional Fund Advisors Lp
Latest Disclosed Ownership	1,011,027 shares
Ownership	4.30%

2025-04-15 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 1,011,027 shares of IDT Corporation (US:IDT). This represents 4.3 percent ownership of the company. In their previous filing dated 2024-02-09 , Dimensional Fund Advisors Lp had reported owning 1,204,247 shares, indicating a decrease of -16.04 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2025-04-15	2025-04-15	13G/A	1,204,247	1,011,027	-16.04	4.30	-15.69
2024-02-09	2024-02-09	13G/A	1,241,743	1,204,247	-3.02	5.10	-1.92
2023-02-10	2023-02-10	13G/A	1,280,736	1,241,743	-3.04	5.20	-1.89
2022-02-08	2022-02-08	13G/A	1,360,158	1,280,736	-5.84	5.30	-7.02
2021-02-12	2021-02-12	13G/A	1,455,503	1,360,158	-6.55	5.70	-2.40
2020-02-12	2020-02-12	13G/A	1,424,428	1,455,503	2.18	5.84	-9.18
2019-02-08	2019-02-08	13G/A	1,558,523	1,424,428	-8.60	6.43	-4.03
2018-02-09	2018-02-09	13G/A	1,079,865	1,558,523	44.33	6.70	33.20
2017-02-09	2017-02-09	13G		1,079,865		5.03
2013-02-11	2013-02-11	13G/A		632,635		2.98
2012-02-14	2012-02-14	13G/A		0		0.00

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-07	2026-03-31	13F	IDT	CL B NEW	448947507	788,047	-18,221	-2.26	38,693	-6.29	0.0080
2026-02-12	2025-12-31	13F	IDT	CL B NEW	448947507	806,268	-56,123	-6.51	41,289	-8.51	0.0087
2025-11-12	2025-09-30	13F	IDT	CL B NEW	448947507	862,391	-89,142	-9.37	45,131	-30.58	0.0097
2025-08-12	2025-06-30	13F	IDT	CL B NEW	448947507	951,533	-59,494	-5.88	65,009	25.31	0.0151
2025-05-13	2025-03-31	13F	IDT	CL B NEW	448947507	1,011,027	-61,465	-5.73	51,876	1.79	0.0129
2025-02-13	2024-12-31	13F	IDT	CL B NEW	448947507	1,072,492	-44,497	-3.98	50,965	19.54	0.0122
2024-11-07	2024-09-30	13F	IDT	CL B NEW	448947507	1,116,989	-19,053	-1.68	42,636	4.48	0.0103
2024-08-09	2024-06-30	13F	IDT	CL B NEW	448947507	1,136,042	-39,078	-3.33	40,806	-8.16	0.0107
2024-05-10	2024-03-31	13F	IDT	CL B NEW	448947507	1,175,120	-29,127	-2.42	44,431	8.23	0.0120
2024-02-07	2023-12-31	13F	IDT	CL B NEW	448947507	1,204,247	-34,860	-2.81	41,052	50.25	0.0120
2023-11-09	2023-09-30	13F	IDT	CL B NEW	448947507	1,239,107	4,895	0.40	27,323	-14.36	0.0090
2023-08-09	2023-06-30	13F	IDT	CL B NEW	448947507	1,234,212	-8,600	-0.69	31,905	-24.67	0.0102
2023-05-12	2023-03-31	13F	IDT	CL B NEW	448947507	1,242,812	1,069	0.09	42,355	124,473.53	0.0143
2023-02-09	2022-12-31	13F	IDT	CL B NEW	448947507	1,241,743	-16,699	-1.33	35	-99.89	0.0103
2022-11-10	2022-09-30	13F	IDT	CL B NEW	448947507	1,258,442	-4,233	-0.34	31,248	-1.60	0.0120
2022-08-12	2022-06-30	13F	IDT	CL B NEW	448947507	1,262,675	-11,984	-0.94	31,755	-26.92	0.0114
2022-05-13	2022-03-31	13F	IDT	CLB	448947507	1,274,659	-6,077	-0.47	43,453	-23.17	0.0134
2022-02-09	2021-12-31	13F	IDT	CLB	448947507	1,280,736	-37,241	-2.83	56,558	2.30	0.0171
2021-11-12	2021-09-30	13F	IDT	CLB	448947507	1,317,977	-1,092	-0.08	55,289	13.41	0.0178
2021-08-12	2021-06-30	13F	IDT	CLB	448947507	1,319,069	-6,728	-0.51	48,751	62.28	0.0154
2021-05-14	2021-03-31	13F	IDT	CLB	448947507	1,325,797	-34,361	-2.53	30,041	78.69	0.0099
2021-03-08	2020-12-31	13F/A-2	IDT	CLB	448947507	1,360,158	-30,001	-2.16	16,812	83.80	0.0061
2021-02-11	2020-12-31	13F	IDT	CLB	448947507	1,360,158	-30,001		16,812		6,071.6008
2020-11-12	2020-09-30	13F	IDT	CLB	448947507	1,390,159	-17,919	-1.27	9,147	-0.51	0.0039
2020-08-13	2020-06-30	13F	IDT	CLB	448947507	1,408,078	-12,258	-0.86	9,194	19.43	0.0040
2020-05-14	2020-03-31	13F	IDT	CLB	448947507	1,420,336	-35,167	-2.42	7,698	-26.64	0.0040
2020-02-14	2019-12-31	13F	IDT	CLB	448947507	1,455,503	3,552	0.24	10,494	-31.36	0.0038
2019-11-12	2019-09-30	13F	IDT	CLB	448947507	1,451,951	-9,519	-0.65	15,289	10.49	0.0059
2019-08-13	2019-06-30	13F	IDT	CLB	448947507	1,461,470	-7,604	-0.52	13,838	41.86	0.0054
2019-08-12	2019-03-31	13F/A-2	IDT	CLB	448947507	1,469,074	44,646	3.13	9,755	10.64	0.0039
2019-05-10	2019-03-31	13F	IDT	CLB	448947507	1,469,074	44,646		9,755
2019-02-26	2018-12-31	13F/A-1	IDT	CLB	448947507	1,424,428	2,350	0.17	8,817	16.10	0.0040
2019-02-13	2018-12-31	13F	IDT	CLB	448947507	1,424,428	2,350		8,817
2018-11-13	2018-09-30	13F	IDT	CLB	448947507	1,422,078	-87,161	-5.78	7,594	-10.47	0.0029
2018-08-10	2018-06-30	13F	IDT	CLB	448947507	1,509,239	-71,262	-4.51	8,482	-14.41	0.0034
2018-05-11	2018-03-31	13F	IDT	CLB	448947507	1,580,501	21,978	1.41	9,910	-40.01	0.0041
2018-02-12	2017-12-31	13F	IDT	CLB	448947507	1,558,523	48,794	3.23	16,520	-22.28	0.0068
2017-11-13	2017-09-30	13F	IDT	CLB	448947507	1,509,729	104,704	7.45	21,257	5.28	0.0093
2017-08-11	2017-06-30	13F	IDT	CLB	448947507	1,405,025	245,300	21.15	20,190	36.86	0.0093
2017-05-12	2017-03-31	13F	IDT	CLB	448947507	1,159,725	79,860	7.40	14,752	-26.32	0.0071
2017-02-09	2016-12-31	13F	IDT	CLB	448947507	1,079,865	51,760	5.03	20,021	12.95	0.0100
2016-11-10	2016-09-30	13F	IDT	CLB	448947507	1,028,105	53,713	5.51	17,725	28.19	0.0096
2016-08-09	2016-06-30	13F	IDT	CLB	448947507	974,392	51,098	5.53	13,827	-3.94	0.0080
2016-05-13	2016-03-31	13F	IDT	CLB	448947507	923,294	14,993	1.65	14,394	35.91	0.0086
2016-02-10	2015-12-31	13F	IDT	CLB	448947507	908,301	-15,752	-1.70	10,591	-19.85	0.0066
2015-11-13	2015-09-30	13F	IDT	CLB	448947507	924,053	36,484	4.11	13,214	-17.65	0.0087
2015-08-14	2015-06-30	13F	IDT	CLB	448947507	887,569	37,690	4.43	16,047	6.38	0.0098
2015-05-14	2015-03-31	13F	IDT	CLB	448947507	849,879	82,390	10.74	15,085	-3.23	0.0095
2015-02-06	2014-12-31	13F	IDT	CLB	448947507	767,489	13,320	1.77	15,588	28.70	0.0102
2014-11-13	2014-09-30	13F	IDT	CLB	448947507	754,169	16,197	2.19	12,112	-5.79	0.0086
2014-08-08	2014-06-30	13F	IDT	CLB	448947507	737,972	25,056	3.51	12,856	8.24	0.0089
2014-05-14	2014-03-31	13F	IDT	CLB	448947507	712,916	-13,150	-1.81	11,877	-8.46	0.0089
2014-02-12	2013-12-31	13F	IDT	CLB	448947507	726,066	15,973	2.25	12,975	2.94	0.0101
2013-11-13	2013-09-30	13F	IDT	CLB	448947507	710,093	43,548	6.53	12,604	1.17	0.0109
2013-08-15	2013-06-30	13F	IDT	CLB	448947507	666,545	666,545		12,458		0.0117

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.