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OneStream, Inc. Class A Ownership | Who Owns OneStream, Inc. Class A?

OverviewForecastRevenueFinancialsChartTranscripts

OneStream, Inc. Class A Ownership Summary

OneStream, Inc. Class A is owned by 2.47% institutional investors, 2.13% insiders, and 95.40% retail investors. Darlington partners capital management, lp is the largest institutional shareholder, holding 2.20% of OS shares.

OS Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockOneStream, Inc. Class A2.47%2.13%95.40%
SectorTechnology Stocks 39.14%11.92%48.94%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Darlington partners capital management, lp3.84M2.20%$81.93M
Millennium management344.94K0.20%$7.36M
Melqart asset management (uk)127.16K0.07%$2.71M
Scientech research---
Westfield capital management co lp---
Arrowstreet capital, limited partnership---
Riverpark advisors---
Mcf advisors---
New york state common retirement fund---
Moore capital management, lp---

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Darlington partners capital management, lp3.84M2.74%$81.93M
Melqart asset management (uk)127.16K0.35%$2.71M
Millennium management344.94K0.00%$7.36M
Scientech research---
Westfield capital management co lp---
Arrowstreet capital, limited partnership---
Riverpark advisors---
Mcf advisors---
New york state common retirement fund---
Moore capital management, lp---

Top Buyers

HolderShares% AssetsChange
Darlington partners capital management, lp3.84M2.74%3.84M
Melqart asset management (uk)127.16K0.35%127.16K
Mrp capital investments---30.00
Venturi wealth management---89.00
Mcf advisors---204.00

Top Sellers

HolderShares% AssetsChange
Invesco---1.62M
Westfield capital management co lp---1.06M
Hood river capital management---646.11K
Maplelane capital---565.11K
Millennium management344.94K0.00%-419.58K

New Positions

HolderShares% AssetsChangeValue
Melqart asset management (uk)127.16K0.35%127.16K$2.71M

Sold Out

HolderChange
Mrp capital investments-30.00
Venturi wealth management-89.00
Mcf advisors-204.00
Centerpoint advisors-300.00
Riverpark advisors-727.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 20253-98.15%4,311,499-91.84%20.24%2-98.40%1-95.65%
Dec 31, 202416643.10%53,352,047-61.57%320.43%12914.16%23-
Sep 30, 2024116-138,824,782-86-113---

Recent Insider Transactions

DateNameRoleActivityValue
May 19, 2025Hohenstein Ken Chief Revenue OfficerSell$553.40K
May 09, 2025Colby Craig-Sell$1.07M
May 09, 2025Colby Craig-Sell$6.07M
Apr 09, 2025Kinzer John-Sell$811.20K
Feb 18, 2025Koefoed William A Chief Financial OfficerSell$250.40K

Insider Transactions Trends

DateBuySell
2025 Q2-4
2025 Q1-2
2024 Q4-26
2024 Q3-2
2006 Q3--

OS Ownership FAQ

Who owns the most shares of OneStream, Inc. Class A?

OneStream, Inc. Class A’s largest shareholders are Darlington partners capital management, lp (3.84M shares, 2.20%), Millennium management (344.94K shares, 0.20%), and Melqart asset management (uk) (127.16K shares, 0.07%). Together, they hold 2.47% of OneStream, Inc. Class A’s total shares outstanding.

Does Blackrock own OneStream, Inc. Class A?

BlackRock is not among the top 10 institutional shareholders of OneStream, Inc. Class A.

Who is OneStream, Inc. Class A’s biggest shareholder by percentage of total assets invested?

Darlington partners capital management, lp is OneStream, Inc. Class A’s biggest shareholder by percentage of total assets invested, with 2.74% of its assets in 3.84M OneStream, Inc. Class A shares, valued at 81.93M$.

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