As of November 7, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Aeluma Inc. The largest reported stake is Perry George Herbert's, at 5.6%. 6 filings are on record since November 14, 2025 (Schedule 13G, March 31, 2026).
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Key facts
- · Reporting person: BlackRock, Inc. · Sole voting: 951,382 · Shared voting: 0 · Sole dispositive: 963,791 · Shared dispositive: 0 · SCHEDULE 13G, 2026-07-27
- · Holder: Mark N. Tompkins · Percent: 4.83% · SCHEDULE 13G/A
- · Holder: Perry George Herbert · Percent: 5.6% · SCHEDULE 13G
- · Holder: Mark N. Tompkins · Percent: 11.34% · SCHEDULE 13G/A
- · Holder: Lee McCarthy · Percent: 1.5% · SCHEDULE 13D/A
Aeluma Inc has 6 Schedule 13D or 13G filings on record since 2025-11-14. 2 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 5.6% | 1,000,000 | SCHEDULE 13G, 2026-03-31 | 2026-03-30 | |
| BlackRock, Inc. | 5.3% | 963,791 | SCHEDULE 13G, 2026-07-27 | 2026-06-30 |
| 4.83% | 885,000 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 | |
| 1.5% | 270,064 | SCHEDULE 13D/A, 2026-01-02 | 2024-08-01 |
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More on Aeluma Inc and the records around it.
Aeluma Inc elsewhere on the record
Companies that share a holder
- Mark N. Tompkins also filed stake reports on 8 other companies: Los Altos Ventures Corp. (Jun 2026), Deep Fission, Inc. (May 2026), Deep Isolation Nuclear, Inc. (May 2026)
- BlackRock, Inc. also filed stake reports on 1596 other companies: AvePoint, Inc. (Nov 2026), BIOMARIN PHARMACEUTICAL INC (Nov 2026), MSG RANGERS CORP (Nov 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 951,382 | 0 | 963,791 | 0 | SCHEDULE 13G, 2026-07-27 |
The latest filing identifies Aeluma Inc by CUSIP 00776X109 and gives its principal executive office as 27 Castilian Drive, Goleta, CA 93117 (SCHEDULE 13G, 2026-07-27).
Purpose of Transaction (Item 4)
Lee McCarthy
Since Mr. McCarthy filed Schedule 13D on June 30, 2021, he has not acquired any shares of Common Stock. He started selling shares of Common Stock on August 1, 2024, as set forth below, and as of March 30, 2025, beneficially owned 743,425 shares of the Issuer, representing approximately 4.7% of the outstanding shares following the Issuer engaging in a firm commitment underwriting for the sale of 2,285,714 shares of its common stock and an uplisting to the Nasdaq Capital Market. Date Action Price ($1)1 Quantity Percent of holdings 8/1/2024 - 8/5/2024 Sale 3.07 10352 -1.1% 8/14/24 Donation - Transfer 2.93 10000 -1.0% shares to charity 8/23/24 - 9/5/2024 Sale 2.93 1500 -0.2% 9/9/24 Donation - Transfer 2.82 10000 -1.1% shares to charity 9/20/24 - 9/23/24 Sale 3.28 12500 -1.3% 9/26/2024 - 10/18/2024 Sale 3.15 11655 -1.3% 10/22/2024 - 11/8/2024 …The first part of Item 4 of the SCHEDULE 13D/A filed 2026-01-02; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-14 | Mark N. Tompkins | 15.99% | SCHEDULE 13G/A |
| 2026-01-02 | Lee McCarthy | 1.5% | SCHEDULE 13D/A |
| 2026-02-17 | Mark N. Tompkins | 11.34% | SCHEDULE 13G/A |
| 2026-03-31 | Perry George Herbert | 5.6% | SCHEDULE 13G |
| 2026-05-15 | Mark N. Tompkins | 4.83% | SCHEDULE 13G/A |
| 2026-07-27 | BlackRock, Inc. | 5.3% | SCHEDULE 13G |
Questions about who owns Aeluma Inc
Who owns Aeluma Inc?
On this page, 2 holders' latest ownership filings report 5% or more of Aeluma Inc: Perry George Herbert (5.6%, Schedule 13G, filed 2026-03-31) and BlackRock, Inc. (5.3%, Schedule 13G, filed 2026-07-27).
Who are the largest shareholders of Aeluma Inc?
By the share each holder's latest filing reports, the largest holders of Aeluma Inc on this page are Perry George Herbert (5.6%) and BlackRock, Inc. (5.3%).
When did Perry George Herbert buy into Aeluma Inc?
The filings give report dates, not purchase dates. The earliest filing from Perry George Herbert on this page is the Schedule 13G, filed 2026-03-31, reporting 5.6%.
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%); 6 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.
Also on the record for Aeluma Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 13, 2026 | SBIR award, Department of Defense | $2.05M | SBIR or STTR award | Source |
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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.