資訊服務集團公司
DE ˙ DB ˙ US45675Y1047
€3.68 ↓ -0.18 (-4.66%)
2026-06-04
分享價格
SecurityDE:ZZG / Information Services Group, Inc.
InstitutionVanguard Group Inc
Latest Disclosed Ownership2,223,602 shares
Latest Disclosed Value $ 12,852,420
Vanguard Group Inc reports 0.18% decrease in ownership of ZZG / Information Services Group, Inc.

On January 29, 2026 - Vanguard Group Inc filed a 13F-HR form disclosing ownership of 2,223,602 shares of Information Services Group, Inc. (DE:ZZG) valued at $11,340,370 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 7, 2025 disclosing 2,227,632 shares of Information Services Group, Inc.. This represents a change in shares of -0.18% during the quarter. The current value of the position is $8,182,855 USD.

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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-01-29 2025-12-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,223,602 -4,030 -0.18 12,852 0.34 0.0002
2025-11-07 2025-09-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,227,632 7,216 0.32 12,809 20.18 0.0002
2025-08-11 2025-06-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,220,416 43,519 2.00 10,658 25.21 0.0002
2025-05-09 2025-03-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,176,897 -5,075 -0.23 8,512 16.80 0.0002
2025-02-11 2024-12-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,181,972 9,468 0.44 7,288 1.65 0.0001
2024-11-13 2024-09-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,172,504 29,551 1.38 7,169 13.79 0.0001
2024-08-13 2024-06-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,142,953 -25,244 -1.16 6,300 -28.07 0.0001
2024-05-10 2024-03-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,168,197 15,028 0.70 8,760 -13.63 0.0002
2024-03-11 2023-12-31 13F/A-1 INFORMATION SVCS GROUP COM 45675Y104 2,153,169 13,140 0.61 10,141 8.19 0.0002
2024-02-14 2023-12-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,153,169 13,140 10,141 0.0002
2023-12-18 2023-09-30 13F/A-1 INFORMATION SVCS GROUP COM 45675Y104 2,140,029 122,378 6.07 9,373 -13.33 0.0002
2023-11-14 2023-09-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,140,029 122,378 9,373 0.0000
2023-08-14 2023-06-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,017,651 -618 -0.03 10,815 5.28 0.0003
2023-07-14 2023-03-31 13F/A-1 INFORMATION SVCS GROUP COM 45675Y104 2,018,269 330,712 19.60 10,273 32.34 0.0003
2023-05-15 2023-03-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,018,269 330,712 10,273 0.0001
2023-02-10 2022-12-31 13F INFORMATION SVCS GROUP COM 45675Y104 1,687,557 -284,221 -14.41 7,763 -17.30 0.0002
2022-11-14 2022-09-30 13F INFORMATION SVCS GROUP COM 45675Y104 1,971,778 113,726 6.12 9,386 -25.27 0.0003
2022-08-12 2022-06-30 13F INFORMATION SVCS GROUP COM 45675Y104 1,858,052 -49,577 -2.60 12,560 -3.32 0.0004
2022-05-13 2022-03-31 13F INFORMATION SVCS GROUP COM 45675Y104 1,907,629 -102,033 -5.08 12,991 -15.17 0.0003
2022-02-14 2021-12-31 13F INFORMATION SVCS GROUP COM 45675Y104 2,009,662 301,639 17.66 15,314 24.88 0.0003
2021-11-12 2021-09-30 13F INFORMATION SVCS GROUP COM 45675Y104 1,708,023 -774,073 -31.19 12,263 -15.55 0.0003
2021-08-13 2021-06-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,482,096 695,402 38.92 14,521 84.70 0.0004
2021-05-14 2021-03-31 13F INFORMATION SVCS GROUP COM 45675Y104 1,786,694 4,383 0.25 7,862 34.49 0.0002
2021-02-12 2020-12-31 13F INFORMATION SVCS GROUP COM 45675Y104 1,782,311 -439,950 -19.80 5,846 24.67 0.0002
2020-11-16 2020-09-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,222,261 -3,362 -0.15 4,689 1.78 0.0002
2020-08-14 2020-06-30 13F INFORMATION SVCS GROUP COM 45675Y104 2,225,623 4,665 0.21 4,607 -19.27 0.0002
2020-05-15 2020-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 2,220,958 146,811 7.08 5,707 8.75 0.0002
2020-02-14 2019-12-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 2,074,147 160,592 8.39 5,248 10.37 0.0002
2019-11-14 2019-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,913,555 -177,914 -8.51 4,755 -28.05 0.0002
2019-08-14 2019-06-30 13F INFORMATION SERVICES GROUP COM 45675Y104 2,091,469 72,601 3.60 6,609 -12.23 0.0002
2019-05-15 2019-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 2,018,868 -28,045 -1.37 7,530 -13.24 0.0003
2019-02-14 2018-12-31 13F INFORMATION SERVICES GROUP COM 45675Y104 2,046,913 24,846 1.23 8,679 -10.21 0.0004
2018-12-13 2018-09-30 13F/A-2 INFORMATION SERVICES GROUP I COM 45675Y104 2,022,067 264,143 15.03 9,666 34.12 0.0004
2018-11-23 2018-09-30 13F/A-1 INFORMATION SERVICES GROUP I COM 45675Y104 2,022,067 0 9,666 0.0004
2018-11-14 2018-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 2,022,067 264,143 9,666
2018-08-14 2018-06-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,757,924 184,419 11.72 7,207 9.58 0.0003
2018-05-15 2018-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,573,505 16,985 1.09 6,577 1.34 0.0003
2018-02-14 2017-12-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,556,520 -35,240 -2.21 6,490 1.42 0.0003
2017-11-14 2017-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,591,760 -151,538 -8.69 6,399 -10.69 0.0003
2017-08-24 2017-06-30 13F/A-1 INFORMATION SERVICES GROUP I COM 45675Y104 1,743,298 5,181 0.30 7,165 30.87 0.0004
2017-08-11 2017-06-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,743,298 5,181 7,165
2017-05-12 2017-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,738,117 44,033 2.60 5,475 -11.22 0.0003
2017-02-14 2016-12-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,694,084 620,788 57.84 6,167 43.99 0.0003
2016-11-14 2016-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,073,296 20,057 1.90 4,283 8.43 0.0003
2016-08-10 2016-06-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 1,053,239 87,551 9.07 3,950 4.06 0.0002
2016-05-13 2016-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 965,688 21,543 2.28 3,796 11.06 0.0002
2016-02-08 2015-12-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 944,145 0 0.00 3,418 -7.40 0.0002
2015-11-12 2015-09-30 13F/A-1 INFORMATION SERVICES GROUP I COM 45675Y104 944,145 33,065 3.63 3,691 -15.25 0.0002
2015-11-12 2015-09-30 13F/A-1 INFORMATION SERVICES GROUP I COM 45675Y104 944,145 33,065 3,691 0.0002
2015-11-12 2015-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 5,132,362 131,738
2015-08-13 2015-06-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 911,080 -38,686 -4.07 4,355 14.91 0.0003
2015-05-15 2015-03-31 13F/A-1 INFORMATION SERVICES GROUP I COM 45675Y104 949,766 2,000 0.21 3,790 -5.23 0.0003
2015-05-14 2015-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 949,766 3,790
2015-02-12 2014-12-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 947,766 4,934 0.52 3,999 11.61 0.0003
2014-11-12 2014-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 942,832 70,421 8.07 3,583 -14.63 0.0003
2014-08-11 2014-06-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 872,411 53,013 6.47 4,197 4.33 0.0003
2014-05-13 2014-03-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 819,398 72,208 9.66 4,023 26.99 0.0003
2014-02-12 2013-12-31 13F INFORMATION SERVICES GROUP I COM 45675Y104 747,190 92,675 14.16 3,168 16.90 0.0003
2013-11-07 2013-09-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 654,515 152,314 30.33 2,710 179.67 0.0003
2013-08-13 2013-06-30 13F INFORMATION SERVICES GROUP I COM 45675Y104 502,201 502,201 969 0.0001
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.