Definitive Healthcare Corp.
US ˙ NasdaqGS ˙ US24477E1038

SecurityDH / Definitive Healthcare Corp.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership435,884 shares
Latest Disclosed Value $ 536,137
Northern Trust Corp reports 0.14% increase in ownership of DH / Definitive Healthcare Corp.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 435,884 shares of Definitive Healthcare Corp. (US:DH) valued at $536,137 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 435,272 shares of Definitive Healthcare Corp.. This represents a change in shares of 0.14% during the quarter. The current value of the position is $395,478 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F DEFINITIVE HEALTHCARE CLASS A COM 24477E103 435,884 612 0.14 536 -57.09 0.0001
2026-02-17 2025-12-31 13F DEFINITIVE HEALTHCARE CLASS A COM 24477E103 435,272 -55,595 -11.33 1,249 -37.30 0.0002
2025-11-14 2025-09-30 13F DEFINITIVE HEALTHCARE CLASS A COM 24477E103 490,867 145,398 42.09 1,993 47.88 0.0003
2025-08-13 2025-06-30 13F DEFINITIVE HEALTHCARE CLASS A COM 24477E103 345,469 -116,153 -25.16 1,347 0.97 0.0002
2025-05-13 2025-03-31 13F DEFINITIVE HEALTHCARE CLASS A COM 24477E103 461,622 -35,657 -7.17 1,334 -34.70 0.0002
2025-02-14 2024-12-31 13F DEFINITIVE HEALTHCARE CLASS A COM 24477E103 497,279 15,530 3.22 2,044 -5.11 0.0003
2024-11-13 2024-09-30 13F DEFINITIVE HEALTHCARE COM 24477E103 481,749 44,992 10.30 2,153 -9.69 0.0004
2024-08-14 2024-06-30 13F DEFINITIVE HEALTHCARE COM 24477E103 436,757 -127,759 -22.63 2,385 -47.66 0.0004
2024-05-14 2024-03-31 13F DEFINITIVE HEALTHCARE COM 24477E103 564,516 6,134 1.10 4,556 -17.93 0.0008
2024-02-13 2023-12-31 13F DEFINITIVE HEALTHCARE COM 24477E103 558,382 -20,638 -3.56 5,550 19.97 0.0010
2023-11-13 2023-09-30 13F DEFINITIVE HEALTHCARE COM 24477E103 579,020 14,795 2.62 4,626 -25.46 0.0009
2023-08-11 2023-06-30 13F DEFINITIVE HEALTHCARE COM 24477E103 564,225 241,145 74.64 6,206 85.98 0.0012
2023-05-15 2023-03-31 13F DEFINITIVE HEALTHCARE COM 24477E103 323,080 17,073 5.58 3,337 -0.77 0.0007
2023-02-13 2022-12-31 13F DEFINITIVE HEALTHCARE COM 24477E103 306,007 30,728 11.16 3,363 -21.41 0.0007
2022-11-14 2022-09-30 13F DEFINITIVE HEALTHCARE COM 24477E103 275,279 27,269 11.00 4,279 -24.76 0.0010
2022-08-12 2022-06-30 13F DEFINITIVE HEALTHCARE COM 24477E103 248,010 163,587 193.77 5,687 173.28 0.0012
2022-05-13 2022-03-31 13F DEFINITIVE HEALTHCARE COM 24477E103 84,423 23,598 38.80 2,081 25.21 0.0004
2022-02-08 2021-12-31 13F DEFINITIVE HEALTHCARE COM 24477E103 60,825 60,825 1,662 0.0003
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.