GPGI INC (GPGI): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in GPGI. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders

13F filers

Aggregate Value

$107.1M

Across holders

Last Price

$13.06

2026-08-24

Sector

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GICS

Quarterly fund activity3 increased4 reduced1 exited

Institutional Holders of GPGI

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9 holders

Manager⇅	Type⇅	Shares⇅	Market Value▼	% of Total⇅	% of Portfolio⇅	Action⇅	QoQ Change⇅	Quarter⇅
Starboard Value LP CIK 0001517137	Hedge Fund	5.03M	$79.7M	74.4%	1.8%	Unchanged	+$0	Q2 2026
Clearbridge Investments, LLC CIK 0001348883	Hedge Fund	1.35M	$21.4M	20.0%	0.0%	Reduced	$-8.6M	Q2 2026
Bridgewater Associates, LP CIK 0001350694	Hedge Fund	115K	$1.8M	1.7%	0.0%	Added	—	Q2 2026
GAMCO INVESTORS, INC. ET AL CIK 0000807249	Institutional Manager	92K	$1.5M	1.4%	0.0%	Unchanged	+$0	Q2 2026
MARSHALL WACE, LLP CIK 0001318757	Hedge Fund	62K	$981K	0.9%	0.0%	Added	—	Q2 2026
AQR CAPITAL MANAGEMENT LLC CIK 0001167557	Hedge Fund	47K	$752K	0.7%	0.0%	Reduced	$-5.8M	Q2 2026
Holocene Advisors, LP CIK 0001700574	Hedge Fund	44K	$695K	0.6%	0.0%	Added	—	Q2 2026
Gotham Asset Management, LLC CIK 0001510387	Hedge Fund	19K	$296K	0.3%	0.0%	Reduced	$-560K	Q2 2026
Rockefeller Capital Management L.P. CIK 0001739439	Hedge Fund	10	$159	0.0%	0.0%	Reduced	$-24K	Q2 2026

$79.7M· 74.4% of total· 1.8% port· 5.03M sh· +$0 QoQ· Q2 2026

$21.4M· 20.0% of total· 0.0% port· 1.35M sh· $-8.6M QoQ· Q2 2026

$1.8M· 1.7% of total· 0.0% port· 115K sh· — QoQ· Q2 2026

$1.5M· 1.4% of total· 0.0% port· 92K sh· +$0 QoQ· Q2 2026

$981K· 0.9% of total· 0.0% port· 62K sh· — QoQ· Q2 2026

$752K· 0.7% of total· 0.0% port· 47K sh· $-5.8M QoQ· Q2 2026

$695K· 0.6% of total· 0.0% port· 44K sh· — QoQ· Q2 2026

$296K· 0.3% of total· 0.0% port· 19K sh· $-560K QoQ· Q2 2026

$159· 0.0% of total· 0.0% port· 10 sh· $-24K QoQ· Q2 2026

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