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NASDAQ: OS
Onestream Inc Stock Ownership - Who owns Onestream?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Onestream Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Ken HohensteinChief Revenue Officer2025-10-16490$17.59
$8.62kSell
Ken HohensteinChief Revenue Officer2025-10-1640,000$10.65
$426.00kBuy
Ken HohensteinChief Revenue Officer2025-10-1639,510$16.84
$665.35kSell
John KinzerDirector2025-09-1930,000$20.00
$600.00kSell
Ken HohensteinChief Revenue Officer2025-09-1640,000$10.65
$426.00kBuy
Ken HohensteinChief Revenue Officer2025-09-1640,000$18.69
$747.60kSell
William A. KoefoedChief Financial Officer2025-09-158,943$19.03
$170.19kSell
William A. KoefoedChief Financial Officer2025-09-106,913$19.79
$136.81kSell
Ken HohensteinChief Revenue Officer2025-09-106,101$19.79
$120.74kSell
Thomas Anthony SheaCEO and President2025-09-1013,805$19.79
$273.20kSell

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Net Insider Buy/Sell (L12M) Ownership

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OS Shareholders

What type of owners hold Onestream Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Vanguard Group Inc3.53%8,605,839$186.06MInstitution
Champlain Investment Partners LLC1.18%2,886,232$62.40MInstitution
Ken Hohenstein1.06%2,577,620$55.73MInsider
Timessquare Capital Management LLC1.04%2,545,548$55.03MInstitution
Blackrock Inc0.86%2,102,778$45.46MInstitution
Massachusetts Financial Services Co0.58%1,423,868$30.78MInstitution
Neuberger Berman Group LLC0.54%1,328,066$28.71MInstitution
American Century Companies Inc0.47%1,146,236$24.78MInstitution
Geode Capital Management LLC0.42%1,026,175$22.19MInstitution
Federated Hermes Inc0.35%850,000$18.38MInstitution

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OS vs Software Infrastructure Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
OS11.06%1.54%Net SellingNet Selling
QLYS58.37%41.63%Net SellingNet Selling
S39.02%3.31%Net SellingNet Selling
BLSH8.10%0.00%
ACIW54.41%5.41%Net SellingNet Selling
View Top Software Infrastructure Stocks

Onestream Stock Ownership FAQ

Who owns Onestream?

Onestream (NASDAQ: OS) is owned by 11.06% institutional shareholders, 1.54% Onestream insiders, and 87.40% retail investors. Ken Hohenstein is the largest individual Onestream shareholder, owning 2.58M shares representing 1.06% of the company. Ken Hohenstein's Onestream shares are currently valued at $55.88M.

If you're new to stock investing, here's how to buy Onestream stock.
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