CONSTELLATION SOFTWARE INC (CNSWF) Institutional Shareholders
CONSTELLATION SOFTWARE INC (CNSWF) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $30.44M in CNSWF holdings during the latest filing period.
Mn Services Vermogensbeheer B.V. is currently the largest disclosed institutional shareholder of CNSWF tracked by InsiderSet, reporting ownership valued at approximately $11.04M in its June 30, 2026 SEC Form 13F filing.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed CNSWF value among the investors covered in this analysis. Major shareholders include Mn Services Vermogensbeheer B.V., O'Brien Greene & Co. Inc, Appleton Partners Inc/Ma, and several other long-term asset managers with concentrated positions in CONSTELLATION SOFTWARE INC (CNSWF).
This page ranks the largest institutional CNSWF shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
13
Total Reported Value
$30.44M
Largest Holder
Mn Services Vermogensbeheer B.V.
Largest Position
$11.04M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
19
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Mn Services Vermogensbeheer B.V. | 0.08% | 5,867 | $11,041,000 | — | — | — | |
| O'Brien Greene & Co. Inc | 1.78% | 3,411 | $6,439,968 | — | — | — | |
| Appleton Partners Inc/Ma | 0.37% | 3,159 | $5,964,000 | — | — | — | |
| Bretton Capital Management, Llc | 3.27% | 2,100 | $4,092,967 | — | — | — | |
| Mcilrath & Eck, Llc | 0.06% | 483 | $845,263 | — | — | — | |
| Atlas Capital Advisors Inc. | 0.09% | 427 | $806,176 | — | — | — | |
| Ancora Advisors Llc | 0.01% | 321 | $604,103 | — | — | — | |
| Lountzis Asset Management | Paul Lountzis | 0.17% | 285 | $538,365 | — | — | — |
| Kelleher Financial Advisors | 0.01% | 24 | $45,171 | — | — | — | |
| Gamma Investing Llc | 0.00% | 17 | $32,096 | — | — | — | |
| Ascentis Wealth Management, Llc | 0.00% | 10 | $18,821 | — | — | — | |
| Sterling Capital Management Llc | 0.00% | 4 | $7,552 | — | — | — | |
| Pnc Financial Services Group, Inc. | 0.00% | 4 | $7,528 | — | — | — |
Frequently asked questions about CNSWF
Who owns the most CNSWF stock?
The largest holders of CNSWF are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CONSTELLATION SOFTWARE INC (CNSWF).
Is CNSWF widely held by superinvestors?
Many widely followed stocks like CNSWF appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CNSWF is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.