OneStream, Inc.
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityOS / OneStream, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership600,024 shares
Latest Disclosed Value $ 14,400,576
State Street Corp reports 20.27% decrease in ownership of OS / OneStream, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 600,024 shares of OneStream, Inc. (US:OS) valued at $14,400,576 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 752,576 shares of OneStream, Inc.. This represents a change in shares of -20.27% during the quarter. The current value of the position is $14,400,576 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)
2026-05-15 2026-03-31 13F ONESTREAM CL A 68278B107 600,024 -152,552 -20.27 14,401 4.11 0.0005
2026-02-13 2025-12-31 13F ONESTREAM CL A 68278B107 752,576 32,526 4.52 13,832 4.24 0.0005
2025-11-14 2025-09-30 13F ONESTREAM CL A 68278B107 720,050 51,110 7.64 13,271 -29.90 0.0005
2025-08-14 2025-06-30 13F ONESTREAM CL A 68278B107 668,940 61,432 10.11 18,931 46.03 0.0007
2025-05-15 2025-03-31 13F ONESTREAM CL A 68278B107 607,508 77,060 14.53 12,964 -14.30 0.0005
2025-02-14 2024-12-31 13F ONESTREAM CL A 68278B107 530,448 416,048 363.68 15,128 290.10 0.0006
2024-11-14 2024-09-30 13F ONESTREAM CL A 68278B107 114,400 114,400 3,878 0.0002
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.