Comparable stake leader
Cao Yu
SEC ownership of FiEE, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001467761.
Disclosed value leader
Cao Yu
Comparable rows
3/25
Latest evidence
30 Jun 2026
- Public ticker
- FIEE on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Cao Yu
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
3 of 25
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Cao Yu
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001467761
- Issuer location
- Osaka
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 FiEE, 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
Cao Yu
Disclosed value leader
Cao Yu
Comparable rows
3/25
Latest evidence
30 Jun 2026
3/4/5
13D/G
13F
Lead comparable stake: 41%
22 rows are not safely comparable across share classes.
13D/G row: Cao Yu
Showing 1-8 of 25 holder rows.
Quick read
Cao Yu leads the comparable SEC ownership view at 41%.
3 of 25 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 Cao Yu's linked filing trail.
Comparable ownership
Top 3
Cao Yu
41%
Elements Corporate Services Ltd
37%
David E. Lazar
35%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 25 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Cao Yu |
3/4/5
13D/G
Chief Financial Officer, Director, 10%+ Owner
|
41%
from 13D/G
|
$12,191,355
2,874,760 shares
mixed-class rows
|
— | 12 May 2026 |
| Elements Corporate Services Ltd |
3/4/5
13D/G
10%+ Owner
|
37%
from 13D/G
|
$4,123,500
3,174,482 shares
mixed-class rows
|
+$2,857,174 | 10 Feb 2026 |
| David E. Lazar |
3/4/5
13D/G
Director, 10%+ Owner · Lazar David E.
|
35%
from 13D/G
|
$7,277,290
2,767,890 shares
mixed-class rows
|
— | 18 Feb 2025 |
| Bin Hu |
3/4/5
Director, 10%+ Owner
|
—
mixed-class rows
|
$478,049
1,712,978 shares
mixed-class rows
|
— | 09 May 2025 |
| Elizabeth Sarah Cash Hitchcock |
3/4/5
Director, 10%+ Owner
|
—
class O/S missing
|
—
116,059 shares
|
— | 14 Dec 2021 |
| Li Wai Chung |
3/4/5
Chief Executive Officer
|
—
mixed-class rows
|
$5,024,346
3,046,094 shares
mixed-class rows
|
— | 12 May 2026 |
| Joshua Horowitz |
3/4/5
Director
|
—
mixed-class rows
|
$2,346,855
1,556,742 shares
mixed-class rows
|
— | 23 Nov 2022 |
| David Natan |
3/4/5
Director
|
—
class O/S missing
|
$1,754,331
248,792 shares
|
— | 05 May 2026 |
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: +$2,857,174.
Buys
$2,857,174
Insiders: 1
Sells
$0
Insiders: 0
Net
+$2,857,174
Shares: +2,192,833
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 2,192,833
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 2,192,833 | 0 | $2,857,174 | $0 | +$2,857,174 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 26 reporting-owner rows connected to FiEE, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
26
Largest Forms 3/4/5 holder
Cao Yu
Net 12M change
+$2,857,174
Latest report
12 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Cao Yu | Chief Financial Officer, Director, 10%+ Owner | $12,191,355 | Mixed | 12 May 2026 | ||
| David E. Lazar | Director, 10%+ Owner | $7,277,290 | Mixed | 18 Feb 2025 | ||
| Li Wai Chung | Chief Executive Officer | $5,024,346 | Mixed | 12 May 2026 | ||
| Elements Corporate Services Ltd | 10%+ Owner | $4,123,500 | +$2,857,174 | +226% | Filing P/S | 10 Feb 2026 |
| Joshua Horowitz | Director | $2,346,855 | Mixed | 23 Nov 2022 | ||
| David Natan | Director | $1,754,331 | Mixed | 05 May 2026 | ||
| Chan Oi Fat | Director | $705,140 | Mixed | 05 May 2026 | ||
| Bin Hu | Director, 10%+ Owner | $478,049 | Mixed | 09 May 2025 | ||
| Avraham Ben-Tzvi | Director | $278,390 | Mixed | 26 Sep 2024 | ||
| Matthew Charles McMurdo | Director | $278,390 | Mixed | 26 Sep 2024 | ||
| Patrick William Rivard | Director | $175,042 | Mixed | 26 Sep 2024 | ||
| Philip Frank | Director | $165,588 | Mixed | 07 Apr 2023 | ||
| Andrew F. Papanicolau | Director | $153,895 | Mixed | 26 Sep 2024 | ||
| Sandra Kaye Howe | Director | $146,136 | Mixed | 07 Apr 2023 | ||
| Nicole Elisabeth Zheng | President & CMO | $121,852 | Mixed | 26 Aug 2022 | ||
| Graham James Chynoweth | Chief Executive Officer, Director | $55,974 | Mixed | 08 Sep 2022 | ||
| Daniel A. Artusi | Director | $51,216 | Mixed | 10 Jan 2023 | ||
| Sean Patrick Doherty | Chief Financial Officer | $33,598 | Mixed | 25 Aug 2021 | ||
| Dustin Tacker | Chief Financial Officer | $19,998 | Mixed | 07 Apr 2023 | ||
| Jeremy P. Hitchcock | 10%+ Owner | $0 | Mixed | 26 Dec 2024 |
Recent insider transactions for FiEE, 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Cao Yu | FIEE | Common Stock | Award | 9.06% | 143,561 | 1,728,927 | 12 May 2026 | Direct | ||
| Li Wai Chung | FIEE | Common Stock | Award | 143,561 | 143,561 | 12 May 2026 | Direct | |||
| David Natan | FIEE | Common Stock | Award | 67.2% | 100,000 | 248,792 | 05 May 2026 | Direct | ||
| Chan Oi Fat | FIEE | Common Stock | Award | 100,000 | 100,000 | 05 May 2026 | Direct | |||
| Elements Corporate Services Ltd | FIEE | Common Stock | Purchase | 217.8% | $2,758,253 | $1.29 | 2,138,181 | 3,119,830 | 10 Feb 2026 | Direct |
| Elements Corporate Services Ltd | FIEE | Series A Convertible Preferred Stock | Purchase | $98,920 | $1.81 | 54,652 | 54,652 | 10 Feb 2026 | Direct | |
| Elements Corporate Services Ltd | FIEE | Common Stock | Conversion of derivative security | 981,649 | 981,649 | 27 Oct 2025 | Direct | |||
| Elements Corporate Services Ltd | FIEE | Convertible Note | Conversion of derivative security | 0 | 0 | 27 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.