How many insider declarations has Yu Cao filed?

Yu Cao has filed 3 public insider declarations with SEC (Form 4).

What is Yu Cao's role?

Yu Cao reports trades in the capacity of Chief Financial Officer.

Which companies does Yu Cao report trades for?

Yu Cao reports trades for 2 companies, including FiEE, Inc..

What is Yu Cao's declared buy vs sell volume?

Across the available history, declared buys total 2.3M€ and disposals 0.

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YC

Yu Cao

Chief Financial Officer

CFO

US·SEC (Form 4)

FiEE, Inc.FiEE, Inc.

0

Total declarations

0

Companies

€2m

▲ Purchases (1 ops.)

—

▼ Sales (0 ops.)

Insider track record

CFO

Disclosed buys

1

Disclosed sells

0

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

Browse the detailed record of transactions filed by Yu Cao, Chief Financial Officer. Director active across 2 companies, notably FiEE, Inc.. Cumulatively, 3 filings have been published. Split: 1 buy · 0 sell. Total volume traded: €2.3m. Activity tracked since 9 May 2025. The latest transaction was filed on 12 May 2026 (Attribution). Regulator: SEC (Form 4). The full history is openly available.

Declarations3 total

◆

Yu Cao

Chief Financial OfficerExecutives12 May 2026FiEE, Inc.

19SEC ↗

143,561 shares0Common StockSEC:0000898432-26-000384:0

◆

Yu Cao

Chief Financial OfficerExecutives12 May 2026FiEE, Inc.

19SEC ↗

143,561 shares0Common StockSEC:0000898432-26-000384

▲

Yu Cao

Chief Financial OfficerExecutives9 May 2025FiEE, Inc.

$3M43SEC ↗

1,585,366 shares@ US$1.64100.0% of flowCommon StockSEC:0001829126-25-003622:0

Ideal exit: 3 Feb 2026 (T+270)

3 of 3 declarations

InsidersTradesSigma

← Executives ★ Sign in to follow

YC

Yu Cao

Chief Financial Officer

CFO

US·SEC (Form 4)

FiEE, Inc.FiEE, Inc.

0

Total declarations

0

Companies

€2m

▲ Purchases (1 ops.)

—

▼ Sales (0 ops.)

Insider track record

CFO

Disclosed buys

1

Disclosed sells

0

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

Browse the detailed record of transactions filed by Yu Cao, Chief Financial Officer. Director active across 2 companies, notably FiEE, Inc.. Cumulatively, 3 filings have been published. Split: 1 buy · 0 sell. Total volume traded: €2.3m. Activity tracked since 9 May 2025. The latest transaction was filed on 12 May 2026 (Attribution). Regulator: SEC (Form 4). The full history is openly available.

Declarations3 total

◆

Yu Cao

Chief Financial OfficerExecutives12 May 2026FiEE, Inc.

19SEC ↗

143,561 shares0Common StockSEC:0000898432-26-000384:0

◆

Yu Cao

Chief Financial OfficerExecutives12 May 2026FiEE, Inc.

19SEC ↗

143,561 shares0Common StockSEC:0000898432-26-000384

▲