BROWN DAVID A B

Director at PRIDE INTERNATIONAL INC · on record since Jan 17, 2006
Director at EMCOR Group, Inc. · on record since Jan 4, 2006
Director at LAYNE CHRISTENSEN CO · on record since Jun 12, 2006
Director at NS GROUP INC · on record since May 11, 2006
Director at PETROHAWK ENERGY CORP · on record since Jul 13, 2006
Director at MISSION RESOURCES CORP · on record since Aug 25, 2003
Director at Valaris Ltd · on record since Jun 3, 2011
Director at BTU INTERNATIONAL INC · on record since Oct 2, 2003
Director at TECHNICAL COMMUNICATIONS CORP · on record since Feb 11, 2004
10% owner at Global Innovative Platforms Inc. · on record since Jun 4, 2026
Director at HERCULES OFFSHORE, INC. · on record since Nov 16, 2015
Chairman of the Board at LAYNE CHRISTENSEN CO · on record since Oct 15, 2015
Director at NOS4-1, Inc. · on record since Jun 6, 2016
Director at Concrete Pumping Holdings, Inc. · on record since Jul 26, 2017

Insider trading activity of BROWN DAVID A B

Transactions on record: 682; since Aug 18, 2003

Open-market buys: 48; $2.1M

Open-market sells: 359; $15.9M

Companies traded: 13; last filing Sep 10, 2026

Figures computed from official regulatory filings — .

Companies where BROWN DAVID A B has traded

Global Innovative Platforms Inc.7 tx · $203.3K · Sep 10, 2026
NOS4-1, Inc.31 tx · $1.1M · Feb 3, 2023
474 tx · $18.1M · May 1, 2020
9 tx · $175.6K · Apr 17, 2020
60 tx · $1.5M · Jun 14, 2018
2 tx · Feb 12, 2016
31 tx · $2.9M · May 21, 2014
36 tx · $1.3M · Jun 2, 2011
2 tx · Jul 13, 2006
15 tx · $736.1K · May 11, 2006
10 tx · $35.4K · Jul 29, 2005
4 tx · $5 · Feb 11, 2004
1 tx · $5K · Oct 2, 2003

Track record of BROWN DAVID A B

Statistical track record

Free account

Open-market buys: 48

Last buy: Sep 8, 2026

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of BROWN DAVID A B

Co-insiders of BROWN DAVID A B

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Global Innovative Platforms Inc.Listing on record	Sep 10, 2026	Buy	2,500	0.50 USD	$1.3K	conv 29First in 12mo	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	2,000,000	0.10 USD	$200K	conv 67Unusual size	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 22	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 21	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 22	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 37	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	3,682,800	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	conv 46	SEC
NOS4-1, Inc.Listing unverified	Feb 3, 2023	Award	85,821	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOS4-1, Inc.Listing unverified	Nov 18, 2022	Buy	15,705	1.01 USD	$15.9K	conv 35Cluster	SEC
NOS4-1, Inc.Listing unverified	Nov 18, 2022	Buy	85,304	1.02 USD	$87K	conv 36Cluster	SEC
NOS4-1, Inc.Listing unverified	May 24, 2022	Buy	3,200	1.75 USD	$5.6K	conv 28Cluster	SEC
NOS4-1, Inc.Listing unverified	May 24, 2022	Buy	8,717	1.60 USD	$13.9K	conv 29Cluster	SEC
NOS4-1, Inc.Listing unverified	May 24, 2022	Buy	24,836	1.72 USD	$42.7K	conv 29Cluster	SEC
NOS4-1, Inc.Listing unverified	May 19, 2022	Buy	15,358	1.46 USD	$22.4K	conv 31Cluster	SEC
NOS4-1, Inc.Listing unverified	May 19, 2022	Buy	34,456	1.54 USD	$53.1K	conv 31Cluster	SEC
NOS4-1, Inc.Listing unverified	May 19, 2022	Buy	113,933	1.50 USD	$170.9K	conv 54ClusterUnusual size	SEC
NOS4-1, Inc.Listing unverified	Mar 23, 2022	Buy	58,263	1.78 USD	$103.7K	conv 42Cluster	SEC
NOS4-1, Inc.Listing unverified	Mar 23, 2022	Buy	41,737	1.73 USD	$72.2K	conv 39Cluster	SEC
NOS4-1, Inc.Listing unverified	Feb 7, 2022	Award	48,649	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOS4-1, Inc.Listing unverified	Nov 26, 2021	Buy	1,403	3.63 USD	$5.1K	conv 12	SEC
NOS4-1, Inc.Listing unverified	Nov 26, 2021	Buy	11,137	3.60 USD	$40.1K	conv 14	SEC
NOS4-1, Inc.Listing unverified	Nov 24, 2021	Buy	55,778	3.60 USD	$200.8K	conv 65Unusual sizeFirst in 12mo	SEC
NOS4-1, Inc.Listing unverified	Nov 24, 2021	Buy	32,682	3.59 USD	$117.3K	conv 33	SEC
NOS4-1, Inc.Listing unverified	Feb 8, 2021	Award	27,398	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EMCOR Group, Inc.Listing on record	May 1, 2020	Award	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Global Innovative Platforms Inc.Listing on record	Sep 10, 2026	Buy	2,500	0.50 USD	$1.3K	conv 29First in 12mo	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	2,000,000	0.10 USD	$200K	conv 67Unusual size	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 22	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 21	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 22	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	250,000	0.00 USD	$500	conv 37	SEC
Global Innovative Platforms Inc.Listing on record	Jun 4, 2026	Buy	3,682,800	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	conv 46	SEC
NOS4-1, Inc.Listing unverified	Feb 3, 2023	Award	85,821	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOS4-1, Inc.Listing unverified	Nov 18, 2022	Buy	15,705	1.01 USD	$15.9K	conv 35Cluster	SEC
NOS4-1, Inc.Listing unverified	Nov 18, 2022	Buy	85,304	1.02 USD	$87K	conv 36Cluster	SEC
NOS4-1, Inc.Listing unverified	May 24, 2022	Buy	3,200	1.75 USD	$5.6K	conv 28Cluster	SEC
NOS4-1, Inc.Listing unverified	May 24, 2022	Buy	8,717	1.60 USD	$13.9K	conv 29Cluster	SEC
NOS4-1, Inc.Listing unverified	May 24, 2022	Buy	24,836	1.72 USD	$42.7K	conv 29Cluster	SEC
NOS4-1, Inc.Listing unverified	May 19, 2022	Buy	15,358	1.46 USD	$22.4K	conv 31Cluster	SEC
NOS4-1, Inc.Listing unverified	May 19, 2022	Buy	34,456	1.54 USD	$53.1K	conv 31Cluster	SEC
NOS4-1, Inc.Listing unverified	May 19, 2022	Buy	113,933	1.50 USD	$170.9K	conv 54ClusterUnusual size	SEC
NOS4-1, Inc.Listing unverified	Mar 23, 2022	Buy	58,263	1.78 USD	$103.7K	conv 42Cluster	SEC
NOS4-1, Inc.Listing unverified	Mar 23, 2022	Buy	41,737	1.73 USD	$72.2K	conv 39Cluster	SEC
NOS4-1, Inc.Listing unverified	Feb 7, 2022	Award	48,649	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
NOS4-1, Inc.Listing unverified	Nov 26, 2021	Buy	1,403	3.63 USD	$5.1K	conv 12	SEC
NOS4-1, Inc.Listing unverified	Nov 26, 2021	Buy	11,137	3.60 USD	$40.1K	conv 14	SEC
NOS4-1, Inc.Listing unverified	Nov 24, 2021	Buy	55,778	3.60 USD	$200.8K	conv 65Unusual sizeFirst in 12mo	SEC
NOS4-1, Inc.Listing unverified	Nov 24, 2021	Buy	32,682	3.59 USD	$117.3K	conv 33	SEC
NOS4-1, Inc.Listing unverified	Feb 8, 2021	Award	27,398	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EMCOR Group, Inc.Listing on record	May 1, 2020	Award	2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC