CONSTELLATION SOFTWARE INC / Constellation Canadian Holdings Inc. / Mark Robert Miller

Insider

10% Owner

Trades at: SABR

30D 90D 1Y

Net shares · 365d

+10.6M

10.6M buy · 0 sell

Net value · 365d

$12.3M

$12.3M in · $0 out

Sentiment · 365d

Net buying

100% buying · 0% selling

Open-market trades · 365d

10.6M buy · 0 sell

Net buy / sell volume (all companies)

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions · open-market

Include grants & non-market

SABR Buy·P
Feb 27, 26

10% Owner

$12.3M

10.6M sh · $1.16

Own +27%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Feb 27, 2026	SABR	10% Owner	Buy P	10.6M	+27%	$1.16	$12.3M

About CONSTELLATION SOFTWARE INC / Constellation Canadian Holdings Inc. / Mark Robert Miller

This profile aggregates every SEC Form 4 insider transaction reported by CONSTELLATION SOFTWARE INC / Constellation Canadian Holdings Inc. / Mark Robert Miller across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.