GPGI, Inc.: 5%+ holders

As of November 10, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of GPGI, Inc. The largest reported stake is Platinum Equity, LLC's, at 18.3%. 17 filings are on record since August 13, 2025 (Schedule 13D, January 20, 2026).

LOCUST WOOD CAPITAL ADVISERS, LLC also filed stake reports on 1 other company ↓

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Key facts

• Filing 2026-11-06 · Reporting person: Tungsten OpCo Holder LLC · Sole voting: 0 · Shared voting: 49,290,409 · Sole dispositive: 0 · Shared dispositive: 49,290,409 · SCHEDULE 13D/A, 2026-11-06
• Filing 2026-08-06 · Reporting person: Fmr LLC · Sole voting: 39,912,342 · Shared voting: 0 · Sole dispositive: 42,747,045 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-06
• Filing 2026-06-22 · Reporting person: Locust Wood Capital, LP · Sole voting: 0 · Shared voting: 3,400,000 · Sole dispositive: 0 · Shared dispositive: 3,400,000 · SCHEDULE 13G, 2026-06-22
• Filed 2026-05-15 · Holder: Alyeska Investment Group, L.P. · Percent: 7.39% · SCHEDULE 13G
• Filed 2026-05-14 · Holder: Capital Research Global Investors · Percent: 3.9% · SCHEDULE 13G/A

GPGI, Inc. has 17 Schedule 13D or 13G filings on record since 2025-08-13. 5 holders' latest filing reports 5% or more of class a common stock, $0.0001 par value per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

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More on GPGI, Inc. and the records around it.

GPGI, Inc. elsewhere on the record

• Who owns it

Companies that share a holder

• LOCUST WOOD CAPITAL ADVISERS, LLC also filed stake reports on 1 other company: Resolute Holdings Management, Inc. ("Issuer") (Aug 2026)
• Platinum Equity, LLC also filed stake reports on 4 other companies: Ingram Micro Holding Corp (Aug 2026), Ryerson Holding Corporation (Aug 2026), UWM Holdings Corp (Nov 2025)
• LMR Partners LLP also filed stake reports on 44 other companies: BuzzFeed Inc (Aug 2026), Cartesian Growth Corp IV (Aug 2026), Collective Acquisition Corp. II (Aug 2026)

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3. What They Do, And How The Money Works

4. Who Runs It, And How To Reach Them

5. The Money: Funding, Valuation, Runway

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7. Warning Bells

8. Sources

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Voting and dispositive power, as filed

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The latest filing identifies GPGI, Inc. by CUSIP 20459V105 and gives its principal executive office as 309 Pierce Street, Somerset, NJ 08873 (SCHEDULE 13D/A, 2026-11-06).

What the percentages are based on

The following percentage is based on 289,861,033 shares of Common Stock outstanding as of April 15, 2026, as disclosed in the Issuer's Form 8-K filed with the Securities and Exchange Commission on June 12, 2026. As of June 15, 2026, the Reporting Persons may be deemed to have beneficially owned approximately 5.1% of the outstanding Common Stock.Locust Wood Capital Advisers, LLC, SCHEDULE 13G, 2026-06-22

Source of funds (Item 3)

Item 3 is hereby amended and supplemented as specified in Appendix A.Tungsten OpCo Holder LLC, SCHEDULE 13D/A, 2026-11-06

Purpose of Transaction (Item 4)

Platinum Equity, LLC

Transaction Agreement Item 3 above summarizes certain provisions of the Transaction Agreement and is incorporated herein by reference. Investor Rights Agreement On the Closing Date, the Issuer and PE Titan CS Holdings, L.P. entered into an investor rights agreement (the "Investor Rights Agreement"), pursuant to which, PE Titan CS Holdings, L.P. has the right to nominate (i) two members of the Issuer's board of directors (the "Board"), for so long as it, together with its affiliates, continue to hold at least 10% of the outstanding shares of Class A Common Stock, and (ii) one member of the Board so long as it, together with its affiliates, continue to hold less than 10% but more than 5% of the outstanding shares of Class A Common Stock. Pursuant to the terms of the Investor Rights Agreement, PE Titan CS Holdings, L.P. nominated Delara Zarrabi and Louis Samson to serve on the Board. In addition, pursuant to the Investor Rights Agreement, PE Titan CS Holdings, L.P. has agreed to be subject to a lock-up period of 90 days following the Closing Date, subject to early release by the Issuer. Registration Rights Agreement In addition, on the Closing Date, the Issuer and PE Titan CS Holdings, L.P. entered into a registration rights agreement (the "Registration Rights Agreement") which, among other things, provides for customary resale, demand and piggyback registration rights. The foregoing descriptions of the Transaction Agreement, the Investor Rights Agreement and the …The first part of Item 4 of the SCHEDULE 13D filed 2026-01-20; the filing has the rest

Timeline

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Questions about who owns GPGI, Inc.

Who owns GPGI, Inc.?

On this page, 5 holders' latest ownership filings report 5% or more of GPGI, Inc.: Platinum Equity, LLC (18.3%, Schedule 13D, filed 2026-01-20), Tungsten OpCo Holder LLC (17.8%, Schedule 13D/A, filed 2026-11-06), Fmr LLC (14.7%, Schedule 13G/A, filed 2026-08-06), Alyeska Investment Group, L.P. (7.39%, Schedule 13G, filed 2026-05-15) and Locust Wood Capital Advisers, LLC (5.1%, Schedule 13G, filed 2026-06-22).

Who are the largest shareholders of GPGI, Inc.?

By the share each holder's latest filing reports, the largest holders of GPGI, Inc. on this page are Platinum Equity, LLC (18.3%), Tungsten OpCo Holder LLC (17.8%) and Fmr LLC (14.7%).

When did Platinum Equity, LLC buy into GPGI, Inc.?

The filings give report dates, not purchase dates. The earliest filing from Platinum Equity, LLC on this page is the Schedule 13D, filed 2026-01-20, reporting 18.3%.

Is this an audit or a full list?

Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 17 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

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