OneStream, Inc. - Onestream Ord Shs Class A (OS)

Historical Holders from Q3 2024 to Q3 2025

Symbol
OS on Nasdaq
CUSIP
68278B107
Type / Class
Equity / Onestream Ord Shs Class A
Shares outstanding
88.7M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
78.7M
Holdings value
$1.45B
% of all portfolios
0.001%
Grand Portfolio weight change
0%
Number of holders
177
Number of buys
97
Number of sells
-108
Average Value change %
0%
Average buys %
+0%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of OneStream, Inc. - Onestream Ord Shs Class A (OS)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
KKR Dream Holdings LLC 67.5% $1.92B 94.5M KKR Group Partnership L.P. Dec 31, 2024
Colby Craig 10.9% $186M 9.13M Craig Colby Mar 31, 2025
NORGES BANK 9.7% +16.3% $157M $40.4M 8.53M +34.5% Norges Bank Sep 30, 2025
VANGUARD GROUP INC 10.37% +109% $217M $117M 7.82M +118% The Vanguard Group Jun 30, 2025
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 7% -18.4% $114M $310K 6.21M +0.27% Kayne Anderson Rudnick Investment Management, LLC Sep 30, 2025
T. Rowe Price Investment Management, Inc. 11.4% +38.8% $106M $28.5M 5.19M +37% T. Rowe Price Investment Management, Inc. Jan 31, 2025
Champlain Investment Partners, LLC 5.5% -26.3% $82.2M $12.2M 4.04M +17.4% Champlain Investment Partners, LLC May 14, 2025
DARLINGTON PARTNERS CAPITAL MANAGEMENT, LP 5.3% $78.1M 3.84M Darlington Partners Capital Management, LP Mar 11, 2025
ALLIANCEBERNSTEIN L.P. 3.9% -30% $57.9M $7.77M 2.85M +15.5% AllianceBernstein L.P. Mar 31, 2025
ALKEON CAPITAL MANAGEMENT LLC 3.5% $51.4M 2.53M Alkeon Capital Management LLC Mar 31, 2025
Koefoed William A 3.8% $41.7M 2.05M William A. Koefoed Dec 31, 2024

Institutional Holders of OneStream, Inc. - Onestream Ord Shs Class A (OS)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 78.7M $1.45B -$245M $18.43 177
2025 Q2 87.1M $2.46B +$661M $28.30 185
2025 Q1 63.7M $1.36B +$140M $21.34 139
2024 Q4 53.3M $1.52B -$3.08B $28.52 159
2024 Q3 139M $4.71B +$4.69B $33.90 113