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Saturday, November 28, 2009, 1:08PM ET - U.S. Markets Closed. Dow Down 1.48% Nasdaq Down 1.73%
Natus Medical Inc. (BABY)On Nov 27: 13.51  Down 0.47 (3.36%)  
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Major HoldersGet Major Holders for:
BREAKDOWN
% of Shares Held by All Insider and 5% Owners: 2%
% of Shares Held by Institutional & Mutual Fund Owners: 80%
% of Float Held by Institutional & Mutual Fund Owners: 82%
Number of Institutions Holding Shares: 129

MAJOR DIRECT HOLDERS (FORMS 3 & 4)
HolderSharesReported
NIERENBERG INVESTMENT MANAGEMENT COMPANY, INC.N/A4-Apr-08
NIERENBERG DAVIDN/A18-Mar-09
NIERENBERG INVESTMENT MANAGEMENT OFFSHORE INCN/A30-Apr-09
HAWKINS JAMES B175,5685-Aug-09
TRAVERSO KENNETH M80,5235-Aug-09


TOP INSTITUTIONAL HOLDERS
HolderShares% OutValue*Reported
Barclays Global Investors UK Holdings Ltd2,256,5367.95$34,818,35030-Sep-09
VANGUARD GROUP, INC. (THE)1,256,6254.43$19,389,72330-Sep-09
Bank of New York Mellon Corporation1,205,7284.25$18,604,38330-Sep-09
JP MORGAN CHASE & COMPANY1,125,3553.96$17,364,22730-Sep-09
MARXE, AUSTIN W. & GREENHOUSE, DAVID M.1,112,8653.92$17,171,50630-Sep-09
THOMSON HORSTMANN & BRYANT, INC.1,095,5503.86$16,904,33630-Sep-09
WESTWOOD MANAGEMENT CORP.,(DALLAS, TEXAS)851,7193.00$13,142,02430-Sep-09
Tygh Capital Management, Inc.820,1622.89$12,655,09930-Sep-09
OPPENHEIMER FUNDS, INC.706,8862.49$10,907,25030-Sep-09
NIERENBERG INVESTMENT MANAGEMENT COMPANY, INC.3,602,04412.69$55,579,53830-Sep-09

TOP MUTUAL FUND HOLDERS
HolderShares% OutValue*Reported
BARON SMALL CAP FUND1,150,0004.05$13,271,00030-Jun-09
JP MORGAN SMALL CAP EQUITY FUND806,9762.84$12,451,63930-Sep-09
ISHARES RUSSELL 2000 INDEX FD411,2731.45$6,345,94230-Sep-09
BLAIR (WILLIAM) MUTUAL FUNDS, INC.-SMALL CAP GROWTH FUND392,5251.38$6,056,66030-Sep-09
ISHARES S&P SMALLCAP 600 INDEX FD368,7511.30$5,121,95131-Oct-09
VANGUARD SMALL-CAP INDEX FUND340,9991.20$3,935,12830-Jun-09
Professionally Managed Portf-TCM Small Cap Growth Fund290,3191.02$4,479,62230-Sep-09
VANGUARD TOTAL STOCK MARKET INDEX FUND267,375.94$3,085,50730-Jun-09
IShares S&P Small Cap 600 Growth Index Fund216,237.76$3,003,53131-Oct-09
VANGUARD SMALL-CAP GROWTH INDEX FUND215,970.76$2,492,29330-Jun-09

View Transactions for Insiders & Institutional Holders
* Value shown is computed using the security's price on the report date given.


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