Who owns Constellation Software Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of CNSWF from SEC Form 13F filings across 13 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 13 institutions disclosed 16,202 shares of Constellation Software Inc. worth $30.7M — about 0.1% of shares outstanding; the largest disclosed holder is Mn Services Vermogensbeheer B.V.. Source: SEC Form 13F filings, parsed by EvidInvest.
13
13F holders
$30.7M
value, 2026 filers
0.1%
of shares outstanding (16,202 sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of CNSWF's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Mn Services Vermogensbeheer B.V. | 5,867 | $11.0M | 0.1% | 0% | -24.5% |
| 2 | O'Brien Greene & Co. Inc | 3,411 | $6.4M | 1.8% | 0% | +254.2% |
| 3 | APPLETON PARTNERS INC/MA | 3,159 | $6.0M | 0.4% | 0% | +38.8% |
| 4 | Bretton Capital Management, LLCNEW | 2,100 | $4.1M | 3.3% | 0% | new |
| 5 | DF DENT & CO INCNEW | 573 | $1.1M | 0.0% | 0% | new |
| 6 | ATLAS CAPITAL ADVISORS INC. | 427 | $806,176 | 0.1% | 0% | +21250.0% |
| 7 | Ancora Advisors LLC | 321 | $604,103 | 0.0% | 0% | -2.4% |
| 8 | LOUNTZIS ASSET MANAGEMENT, LLC | 285 | $538,365 | 0.2% | 0% | 0.0% |
| 9 | KELLEHER FINANCIAL ADVISORS | 24 | $45,171 | 0.0% | 0% | +100.0% |
| 10 | GAMMA Investing LLC | 17 | $32,096 | 0.0% | 0% | -26.1% |
| 11 | Ascentis Wealth Management, LLC | 10 | $18,821 | 0.0% | 0% | 0.0% |
| 12 | PNC Financial Services Group, Inc. | 4 | $7,528 | 0.0% | 0% | 0.0% |
| 13 | Sterling Capital Management LLCNEW | 4 | $7,552 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.