Comparable stake leader
Bleichroeder LP
SEC ownership of SCIENTIFIC INDUSTRIES INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000087802.
Disclosed value leader
Roy T. Eddleman
Comparable rows
5/18
Latest evidence
20 Aug 2026
- Public ticker
- SCND on OTC
- Parsed ownership sources
-
13D/G and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Bleichroeder LP
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
5 of 18
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Bleichroeder LP
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
20 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000087802
- Issuer location
- Bohemia, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of SCIENTIFIC INDUSTRIES INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Bleichroeder LP
Disclosed value leader
Roy T. Eddleman
Comparable rows
5/18
Latest evidence
20 Aug 2026
13D/G
3/4/5
Lead comparable stake: 21%
13 rows are not safely comparable across share classes.
13D/G row: Bleichroeder LP
Showing 1-8 of 18 holder rows.
Quick read
Bleichroeder LP leads the comparable SEC ownership view at 21%.
5 of 18 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Bleichroeder LP's linked filing trail.
Comparable ownership
Top 5
Bleichroeder LP
21%
NORTH RUN CAPITAL, LP
10%
Thomas A. Satterfield Jr.
9.9%
Laurence W. Lytton
9.9%
Sandra F. Pessin
4.7%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 18 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Bleichroeder LP |
13D/G
3/4/5
10%+ Owner
|
21%
|
$2,009,119
2,715,026 shares
|
-$185,000 | 30 Sep 2025 |
| NORTH RUN CAPITAL, LP |
3/4/5
13D/G
10%+ Owner
|
10%
from 13D/G
|
$1,150,000
575,000 shares
|
— | 13 Feb 2024 |
| Thomas A. Satterfield Jr. |
13D/G
|
9.9%
|
$1,183,577
1,138,055 shares
|
$0 | 31 Dec 2024 |
| Laurence W. Lytton |
13D/G
Lytton-Kambara Foundation
|
9.9%
|
$784,682
1,245,527 shares
|
$0 | 30 Jun 2026 |
| Sandra F. Pessin |
13D/G
Norman H. Pessin
|
4.7%
|
$370,500
570,000 shares
|
+$67,270 | 21 Aug 2025 |
| Roy T. Eddleman |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$2,465,776
1,443,414 shares
mixed-class rows
|
— | 29 Apr 2021 |
| Veradace Partners LP |
3/4/5
10%+ Owner
|
—
class O/S missing
|
$1,275,856
637,928 shares
|
— | 29 Apr 2021 |
| Marcus Horton Frampton |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$271,366
166,713 shares
mixed-class rows
|
— | 13 Dec 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$51,283.
Buys
$51,283
Insiders: 1
Sells
$0
Insiders: 0
Net
+$51,283
Shares: +82,299
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 82,299
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 18,700 | 0 | $13,300 | $0 | +$13,300 |
| 3-6 | 9,000 | 0 | $5,220 | $0 | +$5,220 |
| 6-9 | 39,200 | 0 | $22,560 | $0 | +$22,560 |
| 9-12 | 15,399 | 0 | $10,203 | $0 | +$10,203 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to SCIENTIFIC INDUSTRIES INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
Roy T. Eddleman
Net 12M change
+$51,283
Latest report
20 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Roy T. Eddleman | 10%+ Owner | $2,465,776 | Mixed | 29 Apr 2021 | ||
| Bleichroeder LP | 10%+ Owner | $1,453,351 | Filing P/S | 18 Apr 2025 | ||
| Veradace Partners LP | 10%+ Owner | $1,275,856 | Mixed | 29 Apr 2021 | ||
| NORTH RUN CAPITAL, LP | 10%+ Owner | $1,150,000 | Mixed | 13 Feb 2024 | ||
| John A. Moore | Chairman of the Board, Director | $672,539 | +$51,283 | +8.3% | Filing P/S | 20 Aug 2026 |
| Cox Christopher T. | Director | $602,490 | Filing P/S | 01 Jul 2024 | ||
| Jurgen Walter Schumacher | Director | $600,983 | Mixed | 01 Jul 2024 | ||
| Joseph G. Cremonese | Director | $472,248 | Mixed | 09 Jun 2022 | ||
| Marcus Horton Frampton | 10%+ Owner | $271,366 | Mixed | 13 Dec 2023 | ||
| John J. Nicols | Director | $90,778 | Mixed | 17 Feb 2026 | ||
| Michael Blechman | Director | $47,186 | Mixed | 17 Feb 2026 | ||
| Reginald Averilla | Cfo | Mixed | 01 Apr 2024 | |||
| Helena R. Santos | President and CEO, Director | Mixed | 17 Feb 2026 | |||
| Robert Nichols | Secretary | Mixed | 01 Dec 2021 | |||
| Zachary Rovinsky | Chief Financial Officer | Mixed | 17 Feb 2026 |
Recent insider transactions for SCIENTIFIC INDUSTRIES INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| John A. Moore | scnd | Common Stock | Purchase | 1.58% | $10,455 | $0.7112 | 14,700 | 945,641 | 20 Aug 2026 | Direct |
| John A. Moore | scnd | Common Stock | Purchase | 0.43% | $2,845 | $0.7113 | 4,000 | 930,871 | 02 Jun 2026 | Direct |
| John A. Moore | SCND | Common Stock | Purchase | 0.98% | $5,220 | $0.5800 | 9,000 | 926,871 | 23 Mar 2026 | Direct |
| John A. Moore | SCND | Common Stock | Purchase | 0.11% | $650 | $0.6500 | 1,000 | 917,871 | 19 Feb 2026 | Direct |
| Helena R. Santos | SCND | Stock Option | Award | 30% | 130,000 | 563,388 | 17 Feb 2026 | Direct | ||
| Helena R. Santos | SCND | Stock Option | Award | 13% | 50,000 | 433,388 | 17 Feb 2026 | Direct | ||
| Zachary Rovinsky | SCND | Stock Option | Award | 125% | 25,000 | 45,000 | 17 Feb 2026 | Direct | ||
| Michael Blechman | SCND | Stock Option | Award | 61% | 44,000 | 116,186 | 17 Feb 2026 | Direct | ||
| John A. Moore | SCND | Stock Option | Award | 39.6% | 260,000 | 916,871 | 17 Feb 2026 | Direct | ||
| John J. Nicols | SCND | Stock Option | Award | 103.1% | 140,000 | 275,778 | 17 Feb 2026 | Direct | ||
| John A. Moore | SCND | Common Stock | Purchase | 0.99% | $3,455 | $0.5315 | 6,500 | 663,371 | 17 Dec 2025 | Direct |
| John A. Moore | SCND | Common Stock | Purchase | 1.81% | $6,359 | $0.5435 | 11,700 | 656,871 | 17 Dec 2025 | Direct |
| John A. Moore | SCND | Common Stock | Purchase | 3.2% | $12,096 | $0.6048 | 20,000 | 645,171 | 05 Dec 2025 | Direct |
| John A. Moore | SCND | Common Stock | Purchase | 1.26% | $4,060 | $0.7000 | 5,800 | 467,089 | 17 Sep 2025 | Direct |
| John A. Moore | SCND | Common Stock | Purchase | 2.13% | $6,143 | $0.6400 | 9,599 | 461,289 | 16 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.