David J Millstone Net Worth - Insider Trades and Bio as of Jun 23, 2026

GCP Applied Technologies Inc.SEC CIK: 0001572610

Estimated Net Worth

Last Updated: Sep 9, 2024 12:19 AM EST

Transaction Summary

Total Transactions21

Buy-Sell Ratio∞

Buy Transactions15

Sell Transactions0

Transaction Volume

Total Volume$217.31M

Net Volume$217.31M

Buy Volume$217.31M

Sell Volume$0.00

Trade Analysis

AVG Trade Size-$30.33M

Largest Trade$54.55M

Most Active MonthAug

Most Active Year2018

Trading Sentiment

OverallBullish

Recent TradeNeutral

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

David J. Millstone does not have any significant net worth to report based on the numbers we have. This is based on reported shares across multiple companies, which include MATTRESS FIRM HOLDING CORP., GCP Applied Technologies Inc., and W R GRACE & CO.

Holdings & Transactions

gcp applied technologies inc.

Updated: Sep 28, 2022

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	5.11M	$32.00	-$163.64M	Sep 28, 2022	—	Disposition	—	Sep 27	View
From 3	—	—	—	—	Aug 10, 2018	5.11M	—	—	—	View
From 3	—	—	—	—	Apr 13, 2018	5.11M	—	—	—	View

w r grace & co

Updated: Sep 22, 2021

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	9.87M	$70.00	-$690.55M	Sep 22, 2021	—	Disposition	—	Sep 22	View
From 4	0.00	28.49K	$64.87	$1.85M	Aug 27, 2019	9.87M	Purchase	—	Aug 23 - 26	View
From 4	0.01	106.61K	$64.65	$6.89M	Aug 22, 2019	9.84M	Purchase	—	Aug 20 - 22	View
From 4	0.01	96.58K	$64.61	$6.24M	Aug 19, 2019	9.73M	Purchase	—	Aug 15 - 19	View
From 4	0.03	288.83K	$63.88	$18.45M	Aug 14, 2019	9.63M	Purchase	—	Aug 12 - 14	View
From 4	0.03	233.72K	$60.70	$14.19M	Dec 27, 2018	9.34M	Purchase	—	Dec 24 - 27	View
From 4	0.11	893.30K	$61.06	$54.55M	Dec 21, 2018	9.11M	Purchase	—	Dec 19 - 21	View
From 4	0.10	779.66K	$60.52	$47.19M	Dec 18, 2018	8.22M	Purchase	—	Dec 14 - 18	View
From 4	0.03	237.82K	$61.33	$14.59M	Dec 13, 2018	7.44M	Purchase	—	Dec 11 - 13	View
From 4	0.07	501.02K	$61.05	$30.59M	Dec 10, 2018	7.20M	Purchase	—	Dec 06 - 10	View
From 3	—	—	—	—	Dec 10, 2018	6.70M	—	—	—	View

mattress firm holding corp.

Updated: Aug 03, 2016

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.03	53.60K	$29.13	$1.56M	Aug 03, 2016	4.56M	Purchase	—	Aug 01 - 02	View
From 4	0.02	37.50K	$29.09	$1.09M	Aug 01, 2016	4.50M	Purchase	—	Jul 28 - 29	View
From 4	0.26	401.77K	$29.81	$11.98M	Jul 28, 2016	4.47M	Purchase	—	Jul 26 - 27	View
From 4	0.05	78.31K	$30.64	$2.40M	Jul 21, 2016	4.06M	Purchase	—	Jul 19	View
From 4	0.03	48.70K	$32.40	$1.58M	Jun 28, 2016	3.99M	Purchase	—	Jun 24 - 27	View
From 4	0.10	128.96K	$32.44	$4.18M	Jun 20, 2016	3.94M	Purchase	—	Jun 16 - 17	View
From 3	—	—	—	—	Jun 20, 2016	3.81M	—	—	—	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions