As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Scientific Industries Inc. The largest reported stake is Bleichroeder LP's, at 21.19%. 5 filings are on record since August 13, 2025 (Schedule 13D/A, November 14, 2025).
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Key facts
- · Reporting person: Lytton Laurence W · Sole voting: 75,000 · Shared voting: 1,151,104 · Sole dispositive: 75,000 · Shared dispositive: 1,151,104 · SCHEDULE 13G/A, 2026-08-13
- · Holder: Bleichroeder LP · Percent: 21.19% · SCHEDULE 13D/A
- · Holder: North Run Capital, LP · Percent: 9.99% · SCHEDULE 13G/A
- · Holder: Pessin Sandra F · Percent: 4.7% · SCHEDULE 13D/A
- · Holder: North Run Capital, LP · Percent: 9.99% · SCHEDULE 13G/A
Scientific Industries Inc has 5 Schedule 13D or 13G filings on record since 2025-08-13. 3 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 |
|---|---|---|---|---|
| Bleichroeder LP | 21.19% | 2,715,026 | SCHEDULE 13D/A, 2025-11-14 | 2025-09-30 |
| North Run Capital, LP | 9.99% | 1,189,632 | SCHEDULE 13G/A, 2025-11-13 | 2025-09-30 |
| 9.99% | 1,226,104 | SCHEDULE 13G/A, 2026-08-13 | 2026-06-30 | |
| 4.7% | 466,507 | SCHEDULE 13D/A, 2025-08-22 | 2025-08-21 |
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More on Scientific Industries Inc and the records around it.
Scientific Industries Inc elsewhere on the record
- Form D filing May 2025
- Who owns it
Companies that share a holder
- Bleichroeder LP also filed stake reports on 16 other companies: MDxHealth SA (Oct 2026), Identiv, Inc. (INVE) (Aug 2026), Cellectar Biosciences, Inc. (Aug 2026)
- LYTTON LAURENCE W also filed stake reports on 28 other companies: Retension Pharmaceuticals, Inc. (Oct 2026), Rank One Computing Corp (Aug 2026), MDxHealth SA (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Lytton Laurence W | 75,000 | 1,151,104 | 75,000 | 1,151,104 | SCHEDULE 13G/A, 2026-08-13 |
| Lytton-Kambara Foundation | 0 | 1,245,527 | 0 | 1,245,527 | SCHEDULE 13G/A, 2026-08-13 |
The latest filing identifies Scientific Industries Inc by CUSIP 808757108 and gives its principal executive office as 70 Orville Dr, Airport International Plz, Bohemia, NY 11716 (SCHEDULE 13G/A, 2026-08-13).
Purpose of Transaction (Item 4)
Pessin Sandra F
The Reporting Persons originally purchased the Shares based on the belief that the Shares, when purchased, were undervalued and represented an attractive investment opportunity. Depending upon overall market conditions, other investment opportunities available to the Reporting Persons, and the availability of Shares at prices that would make the purchase or sale of Shares desirable, the Reporting Persons may endeavor to increase or decrease their position in the Issuer through, among other things, the purchase or sale of Shares on the open market or in private transactions or otherwise, on such terms and at such times as the Reporting Persons may deem advisable. The Reporting Persons intend to review their investment in the Issuer on a continuing basis. Depending on various factors including, without limitation, the Issuer's financial position and investment strategy, the price levels of the Shares, conditions in the securities markets and general economic and industry conditions, the Reporting Persons may in the future take such actions with respect to their investment in the Issuer as they deem appropriate including, without limitation, communications with management and the Board of Directors of the Issuer, engaging in discussions with third parties about the Issuer, making proposals to the Issuer concerning changes to the capitalization or operations of the Issuer, purchasing additional Shares, selling some or all of their Shares, engaging in short selling of or any …The first part of Item 4 of the SCHEDULE 13D/A filed 2025-08-22; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-13 | North Run Capital, LP | 9.99% | SCHEDULE 13G/A |
| 2025-08-22 | Pessin Sandra F | 4.7% | SCHEDULE 13D/A |
| 2025-11-13 | North Run Capital, LP | 9.99% | SCHEDULE 13G/A |
| 2025-11-14 | Bleichroeder LP | 21.19% | SCHEDULE 13D/A |
| 2026-08-13 | Lytton Laurence W | 9.99% | SCHEDULE 13G/A |
Questions about who owns Scientific Industries Inc
Who owns Scientific Industries Inc?
On this page, 3 holders' latest ownership filings report 5% or more of Scientific Industries Inc: Bleichroeder LP (21.19%, Schedule 13D/A, filed 2025-11-14), North Run Capital, LP (9.99%, Schedule 13G/A, filed 2025-11-13) and Lytton Laurence W (9.99%, Schedule 13G/A, filed 2026-08-13).
Who are the largest shareholders of Scientific Industries Inc?
By the share each holder's latest filing reports, the largest holders of Scientific Industries Inc on this page are Bleichroeder LP (21.19%), North Run Capital, LP (9.99%) and Lytton Laurence W (9.99%).
When did Bleichroeder LP buy into Scientific Industries Inc?
The filings give report dates, not purchase dates. The earliest filing from Bleichroeder LP on this page is the Schedule 13D/A, filed 2025-11-14, reporting 21.19%. That earliest filing is itself an amendment, which updates an earlier report.
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%); 5 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 Scientific Industries Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| May 1, 2025 | Form D, private offering | $1.55M sold | Form D page | 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.