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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 Officer2026-01-1680,000$10.65
$852.00kBuy
Ken HohensteinChief Revenue Officer2026-01-16120,000$23.63
$2.84MSell
Ken HohensteinChief Revenue Officer2026-01-1640,000$14.51
$580.40kBuy
Pamela McIntyreChief Accounting Officer2026-01-086,505$23.58
$153.39kSell
Jonathan D. MarinerDirector2026-01-062,415$22.66
$54.72kSell
Jonathan D. MarinerDirector2026-01-065,541$23.59
$130.71kSell
Ken HohensteinChief Revenue Officer2025-12-1640,000$10.65
$426.00kBuy
Ken HohensteinChief Revenue Officer2025-12-1640,000$17.21
$688.40kSell
William A. KoefoedChief Financial Officer2025-12-159,571$17.73
$169.69kSell
Ken HohensteinChief Revenue Officer2025-12-106,101$18.38
$112.14kSell

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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
T Rowe Price Investment Management Inc3.85%9,382,724$222.18MInstitution
Vanguard Group Inc3.53%8,605,839$203.79MInstitution
Kayne Anderson Rudnick Investment Management LLC2.55%6,211,980$147.10MInstitution
Temasek Holdings Private Ltd1.75%4,266,714$101.04MInstitution
Darlington Partners Capital Management LP1.57%3,839,405$90.92MInstitution
Brown Advisory Inc1.50%3,645,975$86.34MInstitution
Champlain Investment Partners LLC1.18%2,886,232$68.35MInstitution
Alliancebernstein LP1.09%2,659,712$62.98MInstitution
Ken Hohenstein1.05%2,571,519$60.89MInsider
Timessquare Capital Management LLC1.04%2,545,548$60.28MInstitution

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OS vs Software Infrastructure Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
OS32.28%1.65%Net SellingNet Selling
CORZ94.11%5.89%Net SellingNet Selling
GTLB72.68%27.32%Net SellingNet Selling
NTSK35.83%11.96%Net BuyingNet Selling
WEX80.77%19.23%Net SellingNet Selling
View Top Software Infrastructure Stocks

Onestream Stock Ownership FAQ

Who owns Onestream?

Onestream (NASDAQ: OS) is owned by 32.28% institutional shareholders, 1.65% Onestream insiders, and 66.08% retail investors. Ken Hohenstein is the largest individual Onestream shareholder, owning 2.57M shares representing 1.05% of the company. Ken Hohenstein's Onestream shares are currently valued at $60.79M.

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