Definitive Healthcare Corp.
Total Trades
9
Buys
2
Sells
7
Largest Trade
$1M+
Insiders
5
Institutional Funds
92
Inst. Value
$1M+
Activist Filings
17
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| SEA VII Management, LLC | Director | SELL | $50K–$100K | 7K | $9.39 | Aug 24, 2023 |
| SEA VII Management, LLC | Director | SELL | $50K–$100K | 6K | $9.11 | May 15, 2023 |
| SEA VII Management, LLC | Director | SELL | $1M+ | 3.0M | $11.12 | Feb 28, 2023 |
| Krantz Jason Ronald | Director | BUY | $1M+ | 450K | $11.54 | Nov 9, 2022 |
| SEA VII Management, LLC | Director | SELL | $1M+ | 2.1M | $23.66 | Aug 10, 2022 |
| Winn David Randall | Director | SELL | $1M+ | 2.2M | $24.02 | Aug 10, 2022 |
| Haywood Jeffrey Charles | Director | SELL | $100K–$500K | 18K | $15.46 | May 12, 2022 |
| SEA VII Management, LLC | Director | SELL | $50K–$100K | 6K | $15.89 | May 12, 2022 |
| Booth Richard Douglas | CFO | BUY | $50K–$100K | 2K | $21.06 | Mar 7, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 92 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| ADVENT INTERNATIONAL, L.P. | 3.6M | $1M+ | SH |
| VANGUARD GROUP INC | 2.2M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.8M | $1M+ | SH |
| STATE STREET CORP | 979K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 850K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 702K | $1M+ | SH |
| RENAISSANCE TECHNOLOGIES LLC | 528K | $1M+ | SH |
| MORGAN STANLEY | 386K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 359K | $1M+ | SH |
| UBS Group AG | 316K | $500K+ | SH |
| M&T BANK CORP | 930 | $500K+ | SH |
| PINNACLE ASSOCIATES LTD | 260K | $500K+ | SH |
| Pinnacle Wealth Management Advisory Group, LLC | 260K | $500K+ | SH |
| CLARK ESTATES INC/NY | 240K | $500K+ | SH |
| GSA CAPITAL PARTNERS LLP | 239K | $500K+ | SH |
| BARCLAYS PLC | 228K | $500K+ | SH |
| Connor, Clark & Lunn Investment Management Ltd. | 221K | $500K+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 195K | $500K+ | SH |
| TOCQUEVILLE ASSET MANAGEMENT L.P. | 165K | $100K–$500K | SH |
| Bank of New York Mellon Corp | 152K | $100K–$500K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 9, 2026
5.7%
5.9M shares
SC 13G/A · May 15, 2025
54.8%
58.9M shares
SC 13G/A · May 15, 2025
16.9%
22.2M shares
SC 13G/A · May 15, 2025
0.0%
0 shares
SC 13G · May 9, 2025
7.7%
8.7M shares
Massachusetts Financial Services Company
SC 13G/A · Feb 13, 2025
4.3%
5.0M shares
Massachusetts Financial Services Company ("MFS") 04-2747644
SC 13G · Nov 12, 2024
5.2%
6.1M shares
SC 13G · Oct 4, 2024
5.5%
6.4M shares
SC 13G/A · Feb 14, 2024
53.7%
62.5M shares
SC 13G/A · Feb 13, 2024
15.8%
21.8M shares
Conestoga Capital Advisors, LLC. 23-3072906
SC 13G · Jan 5, 2024
5.0%
5.8M shares
SC 13G/A · Feb 14, 2023
17.4%
22.1M shares
Echo Street Capital Management LLC
SC 13G · Feb 13, 2023
5.5%
5.8M shares
SC 13G/A · Feb 13, 2023
17.0%
21.4M shares
SC 13G · Feb 14, 2022
21.2%
26.7M shares
Advent International Corporation
SC 13G · Feb 14, 2022
64.4%
62.5M shares
SC 13G · Feb 11, 2022
17.6%
20.7M shares