CONSTELLATION SOFTWARE INC - CNSWF
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mn Services Vermogensbeheer B.V. | History | Reduced | 5,867 | 11,041 | 0.08% | 0.09% | 1 | -1,900 | -24.46% | Q2 2026 | Jul 31, 2026 |
| O'Brien Greene & Co. Inc | History | Added to | 3,411 | 6,439 | 1.78% | 0.48% | 2 | +2,448 | 254.21% | Q2 2026 | Aug 06, 2026 |
| APPLETON PARTNERS INC/MA | History | Added to | 3,159 | 5,964 | 0.37% | 0.28% | 3 | +883 | 38.8% | Q2 2026 | Jul 21, 2026 |
| Bretton Capital Management, LLC | History | New | 2,100 | 4,092 | 3.27% | — | 4 | +2,100 | New | Q2 2026 | Aug 12, 2026 |
| DF DENT & CO INC | History | No change | 573 | 1,081 | 0.02% | 0.02% | 5 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| McIlrath & Eck, LLC | History | No change | 483 | 845 | 0.06% | 0.06% | 6 | 0 | 0.0% | Q1 2026 | May 19, 2026 |
| ATLAS CAPITAL ADVISORS INC. | History | Added to | 427 | 806 | 0.09% | 0.0% | 7 | +425 | 21250.0% | Q2 2026 | Aug 13, 2026 |
| Ancora Advisors LLC | History | Reduced | 321 | 604 | 0.01% | 0.01% | 8 | -8 | -2.43% | Q2 2026 | Aug 14, 2026 |
| LOUNTZIS ASSET MANAGEMENT, LLC | History | No change | 285 | 538 | 0.17% | 0.18% | 9 | 0 | 0.0% | Q2 2026 | Jul 31, 2026 |
| KELLEHER FINANCIAL ADVISORS | History | Added to | 24 | 45 | 0.01% | 0.01% | 10 | +12 | 100.0% | Q2 2026 | Aug 06, 2026 |
| GAMMA Investing LLC | History | Reduced | 17 | 32 | 0.0% | 0.0% | 11 | -6 | -26.09% | Q2 2026 | Jul 07, 2026 |
| Ascentis Wealth Management, LLC | History | No change | 10 | 18 | 0.0% | 0.0% | 12 | 0 | 0.0% | Q2 2026 | Jul 30, 2026 |
| Sterling Capital Management LLC | History | New | 4 | 7 | 0.0% | — | 14 | +4 | New | Q2 2026 | Jul 28, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 4 | 7 | 0.0% | 0.0% | 13 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| WELLINGTON-ALTUS USA INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -4 | -100.0% | Q2 2026 | Sep 17, 2026 |