Founder Krantz Holds 17.6% Stake, Weighs Rollover in Advent's $1.02/Share Buyout
DH sits 65% above its 52-week low of $0.61.
Summary
Founder Jason Krantz disclosed a 17.6% stake and is weighing a full equity rollover into Advent International's $1.02/share buyout proposal, with his participation non-binding and subject to definitive terms.
Key Events · M&A and Partnerships · DH
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Founder Discloses 17.6% Stake
Jason Krantz beneficially owns 22,497,978 shares (17.6% of Class A Common Stock), including 21,299,157 shares issuable upon exchange of vested LLC Units and 41,457 RSUs vesting within 60 days.
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Rollover Consideration Non-Binding
Krantz is actively considering rolling over all his Class A shares and LLC Units into the surviving company, but reserves the right to modify or withdraw at any time; no binding obligation exists.
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Group Ownership at 66.36%
If Krantz and Advent Funds are deemed a group, they would collectively hold 84,991,654 shares, representing 66.36% of outstanding Class A Common Stock.
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Schedule 13G Converted to 13D
Krantz converted his beneficial ownership filing from Schedule 13G to Schedule 13D specifically because the Advent proposal is premised on his rollover participation.
Analysis · DH · Technology
Jason Krantz, Definitive Healthcare's founder and Executive Chairman, disclosed a 17.6% beneficial ownership stake (22.5 million shares) and confirmed he is actively considering rolling over his entire equity position into the surviving company under Advent International's proposed $1.02 per share buyout. His participation is non-binding and subject to definitive agreement terms, but the filing reveals that Krantz and Advent together would control 66.36% of outstanding shares if deemed a group. This is material because Krantz's rollover is a stated premise of Advent's proposal — without his cooperation, the deal structure could change or collapse. The disclosure also quantifies the founder's economic interest for the first time since the proposal was announced, giving investors clarity on the alignment of the company's largest individual shareholder with the buyout terms.
How filings like this one have moved
In the 30 days to Sep 12, 2026, 35.8% of the 1618 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.19%. These are measured outcomes after filings of this importance, not a forecast for this one.
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At the time of this filing, DH was trading at $1.01 on NASDAQ in the Technology sector, with a market capitalization of approximately $130.7M. The 52-week trading range was $0.61 to $4.35. This filing was assessed with neutral market sentiment and an importance score of 8 out of 10.