Vertex, Inc.
US ˙ NasdaqGM ˙ US92538J1060

SecurityVERX / Vertex, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership582,427 shares
Latest Disclosed Value $ 6,924,407
Dimensional Fund Advisors Lp reports 28.82% decrease in ownership of VERX / Vertex, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 582,427 shares of Vertex, Inc. (US:VERX) valued at $6,925,057 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 818,245 shares of Vertex, Inc.. This represents a change in shares of -28.82% during the quarter. The current value of the position is $7,664,739 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)
2026-05-07 2026-03-31 13F VERTEX CL A 92538J106 582,427 -235,818 -28.82 6,924 -57.63 0.0014
2026-02-12 2025-12-31 13F VERTEX CL A 92538J106 818,245 -169,020 -17.12 16,341 -33.24 0.0034
2025-11-12 2025-09-30 13F VERTEX CL A 92538J106 987,265 32,565 3.41 24,477 -27.44 0.0053
2025-08-12 2025-06-30 13F VERTEX CL A 92538J106 954,700 46,171 5.08 33,731 6.04 0.0078
2025-05-13 2025-03-31 13F VERTEX CL A 92538J106 908,529 84,230 10.22 31,809 -27.67 0.0079
2025-02-13 2024-12-31 13F VERTEX CL A 92538J106 824,299 -86,853 -9.53 43,976 25.34 0.0106
2024-11-07 2024-09-30 13F VERTEX CL A 92538J106 911,152 242,974 36.36 35,084 45.66 0.0085
2024-08-09 2024-06-30 13F VERTEX CL A 92538J106 668,178 40,593 6.47 24,088 20.85 0.0063
2024-05-10 2024-03-31 13F VERTEX CL A 92538J106 627,585 144,243 29.84 19,932 53.08 0.0054
2024-02-07 2023-12-31 13F VERTEX CL A 92538J106 483,342 7,805 1.64 13,021 18.55 0.0038
2023-11-09 2023-09-30 13F VERTEX CL A 92538J106 475,537 84,577 21.63 10,984 44.09 0.0036
2023-08-09 2023-06-30 13F VERTEX CL A 92538J106 390,960 85,320 27.92 7,624 20.56 0.0024
2023-05-12 2023-03-31 13F VERTEX CL A 92538J106 305,640 110,201 56.39 6,324 316,050.00 0.0021
2023-02-09 2022-12-31 13F VERTEX CL A 92538J106 195,439 9,614 5.17 3 -99.92 0.0008
2022-11-10 2022-09-30 13F VERTEX CL A 92538J106 185,825 57,238 44.51 2,540 74.33 0.0010
2022-08-12 2022-06-30 13F VERTEX CL A 92538J106 128,587 51,527 66.87 1,457 23.27 0.0005
2022-05-13 2022-03-31 13F VERTEX CLA 92538J106 77,060 56,090 267.48 1,182 254.95 0.0004
2022-02-09 2021-12-31 13F VERTEX CLA 92538J106 20,970 20,970 333 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.