| Item 1. | Security and Issuer |
| (a) | Title of Class of Securities:
Common Stock, par value $0.00001 per share |
| (b) | Name of Issuer:
Swarmer, Inc |
| (c) | Address of Issuer's Principal Executive Offices:
4515 Seton Center Pkwy #330, Austin,
TEXAS
, 78759. |
| Item 2. | Identity and Background |
|
| (a) | Serhii Kupriienko |
| (b) | The address of the principal business and principal office of the Reporting Person is c/o Swarmer, Inc, 4515 Seton Center Pkwy #330, Austin, TX 78759. |
| (c) | The Reporting Person is the CEO (Global) of the Issuer. |
| (d) | During the last five years, the Reporting Person has not been (i) convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. |
| (e) | During the last five years, the Reporting Person has not been (i) convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. |
| (f) | The Reporting Person is a citizen of Ukraine. |
| Item 3. | Source and Amount of Funds or Other Consideration |
| | The securities covered by this Schedule 13D are owned by the Reporting Person. This Schedule 13D relates to (i) 3,409,856 shares of common stock underlying vested options owned by the Reporting Person, (ii) 55,910 RSUs owned by the Reporting Person, which vest within 60 days of the date hereof and (iii) an aggregate of 341,829 shares of common stock underlying options owned by the Reporting Person, which vest within 60 days of the date hereof. The securities reported in rows (7), (9) and (11) do not include, and the percentage in row (13) does not reflect, (i) 1,285,930 RSUs and (ii) an aggregate of 2,292,215 shares of common stock underlying options vesting beyond 60 days of the date hereof. |
| Item 4. | Purpose of Transaction |
| | 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 CEO (Global) of the Issuer and a member of the Issuer's Board of Directors and, in such capacity, may have influence over the corporate activities of the Issuer, including activities which may relate to items described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.
Except as described in this Schedule 13D, the Reporting Person does not have any present plans or proposals that relate to or would result in any of the actions described in subparagraphs (a) through (j) of Item 4 of Schedule 13D, although, the Reporting Person, at any time and from time to time, may review, reconsider and change their position and/or purpose and/or develop such plans. |
| Item 5. | Interest in Securities of the Issuer |
| (a) | (a)-(c) The information as of the date of the event which requires filing of this statement required by Items 5(a)-(c) is set forth in rows (7)-(13) of the cover page hereto and is incorporated herein by reference. The percentage set forth in row (13) of the cover page is based on 10,998,609, as reported in the Issuer's Current Report on Form 8-K filed on March 18, 2026.
The securities reported in rows (7), (9) and (11) do not include, and the percentage in row (13) does not reflect, (i) 1,285,930 RSUs and (ii) an aggregate of 2,292,215 shares of common stock underlying options vesting beyond 60 days of the date hereof. |
| (b) | See Item 5 a) |
| (c) | See Item 5 a) |
| (d) | (d) Except as described in Item 3, no person other than the Reporting Person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the shares of the Common Stock of the Issuer beneficially owned by the Reporting Person as reported in this Schedule 13D. |
| (e) | Not applicable. |
| Item 6. | Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer |
| | Employment Agreement
The Issuer entered into an employment agreement with the Reporting Person with respect to his service as Chief Executive Officer (Global) on September 22, 2025, as amended by the Amendment to the Employment Agreement on February 18, 2026. Under the terms of the Employment Agreement, as amended, the Reporting Person is entitled to an initial annual base salary of $250,000. Additionally, pursuant to the terms of the employment agreement, the Reporting Person received 1,341,840 RSUs and 400,000 options. The RSUs and options shall vest, subject to the Reporting Person's continued employment, in 1/48th monthly installments on each monthly anniversary of the date of grant, commencing on the first month anniversary of the date of grant; provided, however, that 100% of the RSUs and options shall vest upon a change of control.
Lockup Agreement
In connection with the Issuer's initial public offering, the Reporting Person agreed that, without the prior written consent of Lucid Capital Markets, LLC, as representative of the several underwriters, he will not directly or indirectly offer to sell, sell, transfer or dispose of any shares of Common Stock or similar securities for a period of six (6) months following the closing of the Issuer's initial public offering without the prior written consent of the underwriter, subject to certain exceptions, including transactions relating to securities acquired in the Issuer's initial public offering or in open market transactions after the completion of the Issuer's initial public offering; transfers pursuant to bona fide gift(s), by will, other testamentary document or intestate succession; by operation of law; the establishment of a trading plan pursuant to Rule 10b5-1 promulgated under the Exchange Act; transfers of shares of Common Stock to any trust for the direct or indirect benefit of the transferor or their immediate family; if the stockholder is a corporation, limited liability company, partnership, trust or other entity, transfers to its stockholders, members, partners or trust beneficiaries as part of a distribution, or to any corporation, partnership or other entity that is its affiliate; and transfers to the Issuer in connection with the "net" or "cashless" exercise of options or other rights to purchase shares of Common Stock granted pursuant to an equity incentive plan, stock purchase plan or other arrangement described in this prospectus in satisfaction of any tax withholding obligations through cashless surrender or otherwise, provided, that any shares of Common Stock issued upon exercise of such option or other rights shall remain subject to the terms of the lock-up agreement.
Except as described herein, there are no contracts, arrangements, understandings or relationships (legal or otherwise) among the person named in Item 2 above or between such person and any other person with respect to any securities of the Issuer. |
| Item 7. | Material to be Filed as Exhibits. |
| | Exhibit A: Employment Agreement, dated September 22, 2025, by and between Swarmer, Inc and Serhii Kupriienko (incorporated by reference to the Issuer's Form S-1/A, filed with the SEC on February 19, 2026) https://www.sec.gov/Archives/edgar/data/2092574/000110465926009198/tm2529424d7_ex10-2.htm
Exhibit B: Amendment to Employment Agreement, dated February 18, 2026, by and between Swarmer, Inc and Serhii Kupriienko (incorporated by reference to the Issuer's Form S-1/A, filed with the SEC on February 19, 2026) https://www.sec.gov/Archives/edgar/data/2092574/000110465926017547/tm2529424d10_ex10-19.htm
Exhibit C: Form of Lockup Agreement |
