Swarmer, Inc: 5%+ holders

As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Swarmer, Inc. The largest reported stake is Serhii Kupriienko's, at 28.7%. 8 filings are on record since March 23, 2026 (Schedule 13D/A, September 23, 2026).

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Key facts

• Filing 2026-09-23 · Reporting person: Serhii Kupriienko · Sole voting: 4,674,528 · Shared voting: 0 · Sole dispositive: 4,674,528 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-09-23
• Filing 2026-09-17 · Reporting person: Philip Wagenheim · Sole voting: 835,840 · Shared voting: 0 · Sole dispositive: 835,840 · Shared dispositive: 0 · SCHEDULE 13D/A, 2026-09-17
• Filing 2026-08-20 · Reporting person: RG.AI Technologies, Inc. · Sole voting: 0 · Shared voting: 1,309,331 · Sole dispositive: 0 · Shared dispositive: 1,309,331 · SCHEDULE 13G, 2026-08-20
• Filed 2026-05-12 · Holder: Michael Rapoport · Percent: 4.99% · SCHEDULE 13G/A
• Filed 2026-03-25 · Holder: Michael Rapoport · Percent: 9.9% · SCHEDULE 13G

Swarmer, Inc has 8 Schedule 13D or 13G filings on record since 2026-03-23. 3 holders' latest filing reports 5% or more of common stock, par value $0.00001 per share. Each figure below is the holder's own, as filed, with the filing linked.

Holders

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More on Swarmer, Inc and the records around it.

Swarmer, Inc elsewhere on the record

• Leadership changes Jul 2026
• IPO filing Jun 2026
• Form D filing Oct 2025
• Who owns it

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Voting and dispositive power, as filed

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The latest filing identifies Swarmer, Inc by CUSIP 86989Y109 and gives its principal executive office as 4515 Seton Center Pkwy #330, Austin, TX 78759 (SCHEDULE 13D/A, 2026-09-23).

What the percentages are based on

Oedipus Inc. 10.98% RG.AI Technologies, Inc. 10.98% Charles Eberly von Szecsey 10.98% The percentages are based on 11,922,750 shares of Common Stock outstanding as of August 10, 2026, as disclosed in the issuer's Quarterly Report on Form 10-Q filed on August 14, 2026.RG.AI Technologies, Inc., SCHEDULE 13G, 2026-08-20

Source of funds (Item 3)

The securities covered by this Schedule 13D are owned by the Reporting Person. This Schedule 13D relates to (i) 4,372,700 shares of common stock, (ii) 50,000 shares of common stock underlying options that have vested and are exercisable as of September 22, 2026 and (iii) 251,828 shares of common stock underlying options that will vest and become exercisable within 60 days after such date. The securities reported in rows (7), (9) and (11) do not include, and the percentage in row (13) does not reflect, an aggregate of 1,509,147 shares of common stock underlying options vesting beyond 60 days.Serhii Kupriienko, SCHEDULE 13D/A, 2026-09-23

Certain of the securities covered by this Schedule 13D are owned by Theseus. The Reporting Person is the managing member of Theseus and holds sole voting and dispositive power. This Schedule 13D relates to (i) 87,749 shares of common stock held by Philip Wagenheim, (ii) 2,511 shares of common stock underlying vested options and (iii) 745,580 shares of common stock issuable upon exercise of Warrants held by Theseus over which Philip Wagenheim holds sole voting and dispositive power (after giving effect to the blocker limitations described below).Philip Wagenheim, SCHEDULE 13D/A, 2026-09-17

Purpose of Transaction (Item 4)

Serhii Kupriienko

The information contained in rows 7, 8, 9, 10, 11 and 13 of the cover pages of this Schedule 13D and the information set forth in or incorporated by reference in Item 2, Item 3, Item 5 and Item 6 of the Schedule 13D is hereby incorporated by reference in its entirety into this Item 4. The Reporting Person holds the securities of the Issuer for general investment purposes. The Reporting Person may, from time to time, depending on prevailing market, economic and other conditions, acquire additional shares of Common Stock or other securities of the Issuer, dispose of any such securities, or engage in discussions with the Issuer concerning such acquisitions or dispositions or further investments in the Issuer. The Reporting Person intends to review its investment in the Issuer on a continuing basis and, depending upon the price and availability of shares of Common Stock or other securities of the Issuer, subsequent developments affecting the Issuer, the Issuer's business and prospects, other investment and business opportunities available to the Reporting Person, general stock market and economic conditions, tax considerations and other factors considered relevant, may decide at any time to increase or to decrease the size of its investment in the Issuer in the open market, in privately negotiated transactions, pursuant to 10b5-1 trading plans or otherwise. The Reporting Person is a member of the Issuer's Board of Directors and, in such capacity, may have influence over the …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-09-23; the filing has the rest

Philip Wagenheim

The information contained in rows 7, 8, 9, 10, 11 and 13 of the cover pages of this Schedule 13D and the information set forth in or incorporated by reference in Item 2, Item 3, Item 5 and Item 6 of the Schedule 13D is hereby incorporated by reference in its entirety into this Item 4. The Reporting Person holds the securities of the Issuer for general investment purposes. The Reporting Person may, from time to time, depending on prevailing market, economic and other conditions, acquire additional shares of Common Stock or other securities of the Issuer, dispose of any such securities, or engage in discussions with the Issuer concerning such acquisitions or dispositions or further investments in the Issuer. The Reporting Person intends to review its investment in the Issuer on a continuing basis and, depending upon the price and availability of shares of Common Stock or other securities of the Issuer, subsequent developments affecting the Issuer, the Issuer's business and prospects, other investment and business opportunities available to the Reporting Person, general stock market and economic conditions, tax considerations and other factors considered relevant, may decide at any time to increase or to decrease the size of its investment in the Issuer in the open market, in privately negotiated transactions, pursuant to 10b5-1 trading plans or otherwise. The Reporting Person is a member of the Issuer's Board of Directors and, in such capacity, may have influence over the …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-09-17; the filing has the rest

Alexander Fink

The information contained in rows (7), (8), (9), (10), (11) and (13) of the cover pages of this Schedule 13D and the information set forth in or incorporated by reference in Item 2, Item 3, Item 5 and Item 6 of the Schedule 13D is hereby incorporated by reference in its entirety into this Item 4. The Reporting Person holds the securities of the Issuer for general investment purposes. The Reporting Person may, from time to time, depending on prevailing market, economic and other conditions, acquire additional shares of Common Stock or other securities of the Issuer, dispose of any such securities, or engage in discussions with the Issuer concerning such acquisitions or dispositions or further investments in the Issuer. The Reporting Person intends to review its investment in the Issuer on a continuing basis and, depending upon the price and availability of shares of Common Stock or other securities of the Issuer, subsequent developments affecting the Issuer, the Issuer's business and prospects, other investment and business opportunities available to the Reporting Person, general stock market and economic conditions, tax considerations and other factors considered relevant, may decide at any time to increase or to decrease the size of its investment in the Issuer in the open market, in privately negotiated transactions, pursuant to 10b5-1 trading plans or otherwise. The Reporting Person is President and CEO (U.S.) of the Issuer and a member of the Issuer's Board of …The first part of Item 4 of the SCHEDULE 13D filed 2026-03-23; the filing has the rest

Timeline

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Questions about who owns Swarmer, Inc

Who owns Swarmer, Inc?

On this page, 3 holders' latest ownership filings report 5% or more of Swarmer, Inc: Serhii Kupriienko (28.7%, Schedule 13D/A, filed 2026-09-23), Alexander Fink (13.4%, Schedule 13D, filed 2026-03-23) and RG.AI Technologies, Inc. (10.98%, Schedule 13G, filed 2026-08-20).

Who are the largest shareholders of Swarmer, Inc?

By the share each holder's latest filing reports, the largest holders of Swarmer, Inc on this page are Serhii Kupriienko (28.7%), Alexander Fink (13.4%) and RG.AI Technologies, Inc. (10.98%).

When did Serhii Kupriienko buy into Swarmer, Inc?

The filings give report dates, not purchase dates. The earliest filing from Serhii Kupriienko on this page is the Schedule 13D, filed 2026-03-23, reporting 25.7%; its latest, Schedule 13D/A filed 2026-09-23, reports 28.7%.

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%); 8 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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