Kern Tracy A SEC insider disclosures

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Issuer relationships

Kern Tracy A: source evidence dated 2026-10-12T05:54:58.330Z.

Issuer: CHAD THERAPEUTICS INC
CIK: 0000713492
Tickers: CTU
Officer: Yes
Director: No

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Step 2 of 3

Which issuer and transaction does this person appear in?

Match the reviewed owner identity, issuer and transaction code. Directory eligibility does not turn every filing into a strategy signal.

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Step 3 of 3

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Use the linked SEC receipts and company profiles to verify what became public and when.

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What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Issuer relationships

See the complete issuer relationships

A reporting-owner CIK identifies the filer across issuer relationships and name aliases. A filer may be an individual or an organization; the filing role is the relevant evidence.

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CHAD THERAPEUTICS INC	0000713492	CTU	Yes	No
INTERLINK ELECTRONICS INC	0000828146	LINK	Yes	No
CDTI ADVANCED MATERIALS, INC.	0000949428	CDTI	Yes	No

CHAD THERAPEUTICS INC ↗INTERLINK ELECTRONICS INC ↗CDTI ADVANCED MATERIALS, INC. ↗

Recent SEC transactions

Code P identifies a purchase, S a sale and A an award. Awards and open-market purchases describe different events. Use the public availability date when deciding when a researcher could have known about the transaction.

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Source evidence and strategy eligibility

The transactions below come from filings; a historical tracker separately simulates following eligible events. Joint filers can report the same transaction, and an owner can have filings at multiple companies. Public availability, amendment lineage and verified coverage determine which events a historical tracker may use.

The current directory marks this owner's filing coverage verified.