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Home > Insider Trading > Filing (0001140361-10-001932)

Filing Details

Accession Number:: 0001140361-10-001932
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-01-15 12:00:00
Reporting Period:: 2010-01-13

Filing Date:: 2010-01-15
Accepted Time:: 2010-01-15 16:24:16
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
878526	Natus Medical Inc	BABY	Electromedical & Electrotherapeutic Apparatus (3845)	770154833

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1040899	David Nierenberg	19605 Ne 8Th Street Camas WA 98607		No	No	Yes	No
1282683	Nierenberg Investment Management Company, Inc.	19605 Ne 8Th Street Camas WA 98607		No	No	Yes	No
1282684	Diii Offshore Fund, Lp	19605 Ne 8Th Street Camas WA 98607		No	No	Yes	No
1365745	D3 Family Bulldog Fund, Lp	19605 Ne 8Th Street Camas WA 98607		No	No	Yes	No
1365764	Nierenberg Investment Management Offshore Inc.	19605 Ne 8Th Street Camas WA 98607		No	No	Yes	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2010-01-13	100,000	$14.36	446,056	No	4	S	Indirect	By The DIII Offshore Fund, LP
Common Stock	Disposition	2010-01-14	45,400	$14.56	2,291,595	No	4	S	Indirect	By The D3 Family Bulldog Fund, LP
Common Stock	Disposition	2010-01-15	38,340	$14.50	2,253,255	No	4	S	Indirect	By The D3 Family Bulldog Fund, LP

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	By The DIII Offshore Fund, LP
No	4	S	Indirect	By The D3 Family Bulldog Fund, LP
No	4	S	Indirect	By The D3 Family Bulldog Fund, LP

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	550,291	Indirect	By The D3 Family Fund, LP
Common Stock	129,931	Indirect	By The D3 Family Canadian Fund, LP

Footnotes

Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of the reporting person's pecuniary interest therein.