Stock
Constellation Software Inc
Ticker not mapped · held by 12 managers
Reported value
$4.73M
Holders
12
+2 new · −7 exited
Holders’ est. mark
−$1.41M
Price effect on 10 books still in the name
Largest holder
$1.69M
O'Brien Greene & Co. Inc
Holder count by quarter
Who holds it
Notable only| Investor | Shares | Value | Est. mark | Change |
|---|---|---|---|---|
| O'Brien Greene & Co. Inc | 963 | $1.69M | −$605.9K | Cut−$576K |
| DF DENT & CO INC | 573 | $1.01M | −$367K | Cut−$482.2K |
| McIlrath & Eck, LLC | 483 | $845.3K | — | New |
| Ancora Advisors LLC | 329 | $575.7K | −$216.7K | Cut−$315.4K |
| LOUNTZIS ASSET MANAGEMENT, LLC | 285 | $500.6K | −$185.3K | Cut−$185.3K |
| GAMMA Investing LLC | 23 | $40.5K | −$14.7K | Cut−$48.3K |
| KELLEHER FINANCIAL ADVISORS | 12 | $21K | −$7.91K | Cut−$7.91K |
| ORG Wealth Partners, LLC | 10 | $17.5K | — | New |
| Mn Services Vermogensbeheer B.V. | 7.77K | $13.6K | −$5.12K | Cut−$5.12K |
| PNC Financial Services Group, Inc. | 4 | $7K | −$2.63K | Cut−$5.04K |
| APPLETON PARTNERS INC/MA | 2.28K | $4K | −$1.46K | Cut−$1.96K |
| ATLAS CAPITAL ADVISORS INC. | 2 | $3.51K | −$1.3K | Cut−$1.3K |
Who left
Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.