Brown Christopher D.

Insider

Director

Trades at: MASS

30D 90D 1Y

Net shares · 90d

-90.0K

0 buy · 90.0K sell

Net value · 90d

-$696.9K

$0 in · $696.9K out

Sentiment · 90d

Net selling

0% buying · 100% selling

Open-market trades · 90d

0 buy · 90.0K 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

MASS Sell·S
May 28, 26

Director · 10b5-1

$270.0K

30.0K sh · $9.00

Own -3%
MASS Sell·S
May 6, 26

Director · 10b5-1

$144.6K

20.0K sh · $7.23

Own -2%
MASS Sell·S
Apr 10, 26

Director · 10b5-1

$124.3K

17.6K sh · $7.07

Own -2%
MASS Sell·S
Apr 9, 26

Director · 10b5-1

$52.0K

7.4K sh · $7.04

Own -1%
MASS Sell·S
Apr 8, 26

Director · 10b5-1

$106.0K

15.0K sh · $7.05

Own -2%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
May 28, 2026	MASS	Director	Sell S	30.0K	-3%	$9.00	$270.0K
May 6, 2026	MASS	Director	Sell S	20.0K	-2%	$7.23	$144.6K
Apr 10, 2026	MASS	Director	Sell S	17.6K	-2%	$7.07	$124.3K
Apr 9, 2026	MASS	Director	Sell S	7.4K	-1%	$7.04	$52.0K
Apr 8, 2026	MASS	Director	Sell S	15.0K	-2%	$7.05	$106.0K

About Brown Christopher D.

This profile aggregates every SEC Form 4 insider transaction reported by Brown Christopher D. 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.