SRB Management, L.P.

Former 10% Owner at WORLD HEART CORP · on record since Jan 25, 2007
10% owner at WORLD HEART CORP · on record since Jan 25, 2007
10% owner at ICAGEN INC · on record since Feb 8, 2007
Member of a 10% Group at RESPONSE GENETICS INC · on record since Mar 10, 2010
Member of a 13(d) 10% Group at ALLOY INC · on record since Mar 5, 2010
10% owner at PLATO LEARNING INC · on record since Jan 29, 2009
10% owner at PHYSICIANS FORMULA HOLDINGS, INC. · on record since Aug 20, 2010
10% owner at GLU MOBILE INC · on record since Sep 7, 2010
10% owner at RESPONSE GENETICS INC · on record since Oct 29, 2010
Director at GLU MOBILE INC · on record since Mar 2, 2011
10% owner at STANDARD DIVERSIFIED INC. · on record since May 19, 2011
10% owner at PIXELWORKS, INC · on record since Sep 28, 2012
Member of a 13(d) 10% Group at Speed Commerce, Inc. · on record since Oct 2, 2012
Former 10% Owner at PIXELWORKS, INC · on record since Mar 10, 2014
See Remarks at EMCORE CORP · on record since Jun 23, 2015
10% owner at Fuel Systems Solutions, Inc. · on record since Sep 1, 2015
Member of 13D 10% Group at Fuel Systems Solutions, Inc. · on record since Nov 4, 2015
Member of 13D 10% Group at INTEVAC INC · on record since Nov 4, 2015
10% owner at · on record since Feb 27, 2023
Member of 13D 10% Group at · on record since Feb 27, 2023

Insider trading activity of SRB Management, L.P.

Transactions on record: 75; since Jan 29, 2009

Open-market buys: 38; $3.8M

Open-market sells: 27; $19.1M

Companies traded: 7; last filing Jul 14, 2026

Figures computed from official regulatory filings — .

Companies where SRB Management, L.P. has traded

22 tx · $1.3M · Jul 14, 2026
16 tx · $18.2M · Mar 10, 2014
14 tx · $626.5K · Jan 30, 2014
9 tx · $722K · Mar 9, 2012
3 tx · $149.1K · Dec 16, 2010
1 tx · $51.7K · Mar 22, 2010
10 tx · $2.2M · Feb 10, 2009

Track record of SRB Management, L.P.

Statistical track record

Free account

Open-market buys: 38

Last buy: May 31, 2023

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

Transaction history of SRB Management, L.P.

Co-insiders of SRB Management, L.P.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Great Elm Group, Inc.Listing on record	Jul 14, 2026	Other	7,887	2.18 USD	$17.2K		SEC
Great Elm Group, Inc.Listing on record	Jul 14, 2026	OtherD (derivative)	0	100.00 USD	n/a (Converted to USD in the nightly refresh)		SEC
Great Elm Group, Inc.Listing on record	Jul 14, 2026	Other	-7,887	2.18 USD	$17.2K		SEC
Great Elm Group, Inc.Listing on record	Jul 14, 2026	OtherD (derivative)	0	100.00 USD	n/a (Converted to USD in the nightly refresh)		SEC
Great Elm Group, Inc.Listing on record	May 31, 2023	Buy	4,678	2.06 USD	$9.6K	conv 28Cluster	SEC
Great Elm Group, Inc.Listing on record	May 31, 2023	Buy	4,491	2.05 USD	$9.2K	conv 30Cluster	SEC
Great Elm Group, Inc.Listing on record	May 22, 2023	Buy	50,000	1.97 USD	$98.5K	conv 40Cluster	SEC
Great Elm Group, Inc.Listing on record	May 22, 2023	Buy	2,612	2.06 USD	$5.4K	conv 28Cluster	SEC
Great Elm Group, Inc.Listing on record	May 22, 2023	Buy	243,991	2.00 USD	$488K	conv 50ClusterUnusual size	SEC
Great Elm Group, Inc.Listing on record	Oct 28, 2022	Buy	3,964	1.99 USD	$7.9K	conv 27Cluster	SEC
Great Elm Group, Inc.Listing on record	Oct 28, 2022	Buy	4,468	2.00 USD	$8.9K	conv 27Cluster	SEC
Great Elm Group, Inc.Listing on record	Oct 28, 2022	Buy	3,168	1.99 USD	$6.3K	conv 27Cluster	SEC
Great Elm Group, Inc.Listing on record	Oct 20, 2022	Buy	21,493	2.00 USD	$43K	conv 29Cluster	SEC
Great Elm Group, Inc.Listing on record	Aug 17, 2022	Buy	2,027	2.05 USD	$4.2K	conv 23Cluster	SEC
Great Elm Group, Inc.Listing on record	Aug 17, 2022	Buy	26,150	2.02 USD	$52.8K	conv 24Cluster	SEC
Great Elm Group, Inc.Listing on record	Aug 17, 2022	Buy	15,877	2.02 USD	$32.1K	conv 23Cluster	SEC
Great Elm Group, Inc.Listing on record	Jul 20, 2022	Buy	3,658	1.98 USD	$7.2K	conv 23Cluster	SEC
Great Elm Group, Inc.Listing on record	Jul 20, 2022	Buy	3,282	2.00 USD	$6.6K	conv 24Cluster	SEC
Great Elm Group, Inc.Listing on record	May 25, 2022	Buy	50,000	2.19 USD	$109.5K	conv 36ClusterFirst in 12mo	SEC
Great Elm Group, Inc.Listing on record	May 20, 2021	Award	29,277	2.32 USD	$67.9K		SEC
Great Elm Group, Inc.Listing on record	May 20, 2021	Award	129,938	2.40 USD	$311.9K	Unusual size	SEC
Great Elm Group, Inc.Listing on record	May 20, 2021	Award	5,077	2.18 USD	$11.1K		SEC
PIXELWORKS, INCListing on record	Mar 10, 2014	Sell	-90,944	6.81 USD	$619.3K		SEC
PIXELWORKS, INCListing on record	Mar 10, 2014	Sell	-199,627	7.43 USD	$1.5M	Unusual size	SEC
PIXELWORKS, INCListing on record	Mar 10, 2014	Sell	-111,111	7.92 USD	$880K	Unusual size	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Great Elm Group, Inc.Listing on record	Jul 14, 2026	Other	7,887	2.18 USD	$17.2K		SEC
Great Elm Group, Inc.Listing on record	Jul 14, 2026	OtherD (derivative)	0	100.00 USD	n/a (Converted to USD in the nightly refresh)		SEC
Great Elm Group, Inc.Listing on record	Jul 14, 2026	Other	-7,887	2.18 USD	$17.2K		SEC
Great Elm Group, Inc.Listing on record	Jul 14, 2026	OtherD (derivative)	0	100.00 USD	n/a (Converted to USD in the nightly refresh)		SEC
Great Elm Group, Inc.Listing on record	May 31, 2023	Buy	4,678	2.06 USD	$9.6K	conv 28Cluster	SEC
Great Elm Group, Inc.Listing on record	May 31, 2023	Buy	4,491	2.05 USD	$9.2K	conv 30Cluster	SEC
Great Elm Group, Inc.Listing on record	May 22, 2023	Buy	50,000	1.97 USD	$98.5K	conv 40Cluster	SEC
Great Elm Group, Inc.Listing on record	May 22, 2023	Buy	2,612	2.06 USD	$5.4K	conv 28Cluster	SEC
Great Elm Group, Inc.Listing on record	May 22, 2023	Buy	243,991	2.00 USD	$488K	conv 50ClusterUnusual size	SEC
Great Elm Group, Inc.Listing on record	Oct 28, 2022	Buy	3,964	1.99 USD	$7.9K	conv 27Cluster	SEC
Great Elm Group, Inc.Listing on record	Oct 28, 2022	Buy	4,468	2.00 USD	$8.9K	conv 27Cluster	SEC
Great Elm Group, Inc.Listing on record	Oct 28, 2022	Buy	3,168	1.99 USD	$6.3K	conv 27Cluster	SEC
Great Elm Group, Inc.Listing on record	Oct 20, 2022	Buy	21,493	2.00 USD	$43K	conv 29Cluster	SEC
Great Elm Group, Inc.Listing on record	Aug 17, 2022	Buy	2,027	2.05 USD	$4.2K	conv 23Cluster	SEC
Great Elm Group, Inc.Listing on record	Aug 17, 2022	Buy	26,150	2.02 USD	$52.8K	conv 24Cluster	SEC
Great Elm Group, Inc.Listing on record	Aug 17, 2022	Buy	15,877	2.02 USD	$32.1K	conv 23Cluster	SEC
Great Elm Group, Inc.Listing on record	Jul 20, 2022	Buy	3,658	1.98 USD	$7.2K	conv 23Cluster	SEC
Great Elm Group, Inc.Listing on record	Jul 20, 2022	Buy	3,282	2.00 USD	$6.6K	conv 24Cluster	SEC
Great Elm Group, Inc.Listing on record	May 25, 2022	Buy	50,000	2.19 USD	$109.5K	conv 36ClusterFirst in 12mo	SEC
Great Elm Group, Inc.Listing on record	May 20, 2021	Award	29,277	2.32 USD	$67.9K		SEC
Great Elm Group, Inc.Listing on record	May 20, 2021	Award	129,938	2.40 USD	$311.9K	Unusual size	SEC
Great Elm Group, Inc.Listing on record	May 20, 2021	Award	5,077	2.18 USD	$11.1K		SEC
PIXELWORKS, INCListing on record	Mar 10, 2014	Sell	-90,944	6.81 USD	$619.3K		SEC
PIXELWORKS, INCListing on record	Mar 10, 2014	Sell	-199,627	7.43 USD	$1.5M	Unusual size	SEC
PIXELWORKS, INCListing on record	Mar 10, 2014	Sell	-111,111	7.92 USD	$880K	Unusual size	SEC