Definitive Healthcare Corp. - Class A Common Stock, $0.001 par value (DH)

Q: What does CUSIP 24477E103 represent in this 13F holders report?

CUSIP 24477E103 is the security identifier for DH - Definitive Healthcare Corp. - Class A Common Stock, $0.001 par value used to aggregate holder disclosures.

Q: How many institutions held DH - Definitive Healthcare Corp. - Class A Common Stock, $0.001 par value in Q1 2025?

135 institutional investors reported DH - Definitive Healthcare Corp. - Class A Common Stock, $0.001 par value for Q1 2025. Use the holders table for investor-level position and value details.

CUSIP: 24477E103

Q1 2025 13F Holders as of 31 Mar 2025

Security type / class: Equity / Class A Common Stock, $0.001 par value
Total 13F shares: 102,223,415
Total 13F value: $295,430,701
Share change: -2,814,975
Put/Call ratio: 58%
SEC-reported price per share: $2.89
Number of holders: 135
Value change: -$19,223,412
Number of buys: 70
Number of sells: 65
Shares outstanding: 103,839,200

Security key

24477E103

Report period

Q1 2025

Institutions

135

Top holders

DH full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Definitive Healthcare Corp. SEC filings Definitive Healthcare Corp. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 24477E103

Newer quarter: Q2 2026

Recent filing periods:

Q3 2026 Q2 2026

Ownership snapshot

Top reported holders of DH - Definitive Healthcare Corp. - Class A Common Stock, $0.001 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

MASSACHUSETTS FINANCIAL S...

Disclosed value leader

ADVENT INTERNATIONAL, L.P.

Comparable rows

1/15

Latest evidence

31 Dec 2024

13F 13D/G 3/4/5 Lead comparable stake: 4.3% 14 rows are not safely comparable across share classes. 13D/G row: MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Showing 1-6 of 15 holder rows.

Quick read

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ leads the comparable SEC ownership view at 4.3%.

1 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens MASSACHUSETTS FINANCIAL SERVICES CO /MA/'s linked filing trail.

Comparable ownership Top 1

MASSACHUSETTS FINANCIAL SERVICES ... 4.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F 13D/G Company · Massachusetts Financial Services Company 13F 13D/G	4.3% Reported 13D/G · 31 Dec 2024	$20,396,898 4,962,749 shares	—	31 Dec 2024
ADVENT INTERNATIONAL, L.P.	3/4/5 13F Director, 10%+ Owner · Company 3/4/5 13F	— denominator unverified	$562,443,084 62,493,676 shares	—	22 Nov 2021
ADVENT INTERNATIONAL GP, LLC	3/4/5 Director, 10%+ Owner 3/4/5	— denominator unverified	— 62,493,676 shares	—	30 Jun 2023
Christopher Egan	3/4/5 Director 3/4/5	— denominator unverified	$562,443,084 62,493,676 shares	—	22 Nov 2021
Lauren Young	3/4/5 Director 3/4/5	— denominator unverified	$562,443,084 62,493,676 shares	—	22 Nov 2021
SEA VII Management, LLC	3/4/5 Director 3/4/5	— mixed-class rows	$493,886,222 29,127,973 shares mixed-class rows	—	22 Aug 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

135

102,223,415

Rows available

135

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2025 vs Q2 2026 Across Filers

Q2 2026 holders

Q1 2025 holders

135

Holder diff

Investor	Q2 2026 Shares	Q1 2025 Shares	Share Diff	Share Chg %	Q2 2026 value	Q1 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend