13G Filing: Penbrook Management and Data I/O Corp (DAIO)

CUSIP No. 237690102 13G Page 6 of 12 Pages

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1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

Ralph Kaplan
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2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a) |x|
(b) |_|
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3. SEC USE ONLY

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4. CITIZENSHIP OR PLACE OF ORGANIZATION

US Citizen
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NUMBER OF 5. SOLE VOTING POWER

SHARES 0
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BENEFICIALLY 6. SHARED VOTING POWER

OWNED BY 110,000
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EACH 7. SOLE DISPOSITIVE POWER

REPORTING 0
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PERSON 8. SHARED DISPOSITIVE POWER

WITH 469,090
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9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
469,090
(Reporting person disclaims beneficial ownership of shares managed by
Penbrook Management, LLC on behalf of its investment Advisory clients
and disclaims beneficial ownership of shares held by AnKap Partners,
L.P. which represent the interest of the other partners of AnKap
Partners, L.P.)
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10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

|_|
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11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
5.90%
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12. TYPE OF REPORTING PERSON*

IN
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