| Filed | As-Of/On | Form | Fullname | Fund Class | Shares | Activity | Shares Change | Shares Pct. Change | Hypothetical Old Value | Hypothetical New Value | Hypothetical Value Chg. | Hypotheticals Return |
Hypotheticals Results |
Director |
Other |
Ten Pct |
Officer |
Officer Title |
News Article |
History |
|---|
| 2009-11-17 | 2009-09-30 | 13F-HR/A | Amvescap Plc | Institution | 232 | Sold Some | -11,537 | -98.02 % | $3,383 | $3,134 | $-248 | -7.33 % | $12,345 | | | | | | News Article | History of Amvescap Plc Ownership Of Natus Medical Inc |
| 2009-11-17 | 2009-09-30 | 13F-HR/A | Credit Suisse First Boston | Institution | 26,113 | Sold Some | -26,732 | -50.58 % | $380,728 | $352,787 | $-27,941 | -7.33 % | $28,603 | | | | | | News Article | History of Credit Suisse First Boston Ownership Of Natus Medical Inc |
| 2009-11-17 | 2009-09-30 | 13F-HR | Wells Fargo And Co | Institution | 24,122 | Sold Some | -806 | -3.23 % | $351,699 | $325,888 | $-25,811 | -7.33 % | $862 | | | | | | News Article | History of Wells Fargo And Co Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Ah Lisanti Capital Growth Llc | Institution | 92,280 | Added More | 67,585 | 273.67 % | $1,345,442 | $1,246,703 | $-98,740 | -7.33 % | $-72,316 | | | | | | News Article | History of Ah Lisanti Capital Growth Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | American International Group Inc | Institution | 42,400 | Added More | 988 | 2.38 % | $618,192 | $572,824 | $-45,368 | -7.33 % | $-1,057 | | | | | | News Article | History of American International Group Inc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Ashford Capital Management Inc | Institution | 47,100 | Added More | 27,300 | 137.87 % | $686,718 | $636,321 | $-50,397 | -7.33 % | $-29,211 | | | | | | News Article | History of Ashford Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Bridgeway Capital Management Inc | Institution | | Sold All | -33,400 | -100 % | | | | -7.33 % | $35,738 | | | | | | News Article | History of Bridgeway Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Catapult Capital Management Llc | Institution | 50,000 | Sold Some | -5,000 | -9.09 % | $729,000 | $675,500 | $-53,500 | -7.33 % | $5,350 | | | | | | News Article | History of Catapult Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Dafna Capital Management Llc | Institution | 8,000 | New Holding | 8,000 | 100 % | $116,640 | $108,080 | $-8,560 | -7.33 % | $-8,560 | | | | | | News Article | History of Dafna Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Decade Capital Management Llc | Institution | | Sold All | -300,000 | -100 % | | | | -7.33 % | $321,000 | | | | | | News Article | History of Decade Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Fmr Corp | Institution | 2,300 | Added More | 1,300 | 130.00 % | $33,534 | $31,073 | $-2,461 | -7.33 % | $-1,391 | | | | | | News Article | History of Fmr Corp Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Grt Capital Partners Llc | Institution | 22,000 | Sold Some | -3,000 | -12.00 % | $320,760 | $297,220 | $-23,540 | -7.33 % | $3,210 | | | | | | News Article | History of Grt Capital Partners Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Ing Groep Nv | Institution | 12,557 | New Holding | 12,557 | 100 % | $183,081 | $169,645 | $-13,436 | -7.33 % | $-13,436 | | | | | | News Article | History of Ing Groep Nv Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Julius Baer Investment Management Llc | Institution | 100,935 | Sold Some | -33,920 | -25.15 % | $1,471,632 | $1,363,632 | $-108,000 | -7.33 % | $36,294 | | | | | | News Article | History of Julius Baer Investment Management Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Madison Square Investors Llc | No Data | | Sold All | -2,158 | -100 % | | | | -7.33 % | $2,309 | | | | | | News Article | History of Madison Square Investors Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Millennium Management Llc | Institution | 67,247 | Sold Some | -229,584 | -77.34 % | $980,461 | $908,507 | $-71,954 | -7.33 % | $245,655 | | | | | | News Article | History of Millennium Management Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Morgan Stanley | Institution | 272,359 | Added More | 261,579 | 2426.52 % | $3,970,994 | $3,679,570 | $-291,424 | -7.33 % | $-279,890 | | | | | | News Article | History of Morgan Stanley Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | New York State Teachers Retirement System | Institution | 108,109 | New Holding | 108,109 | 100 % | $1,576,229 | $1,460,553 | $-115,677 | -7.33 % | $-115,677 | | | | | | News Article | History of New York State Teachers Retirement System Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Nierenberg Investment Management Co | Institution | 3,602,044 | No Change | 0 | 0 % | $52,517,802 | $48,663,614 | $-3,854,187 | -7.33 % | $0 | | | | | | News Article | History of Nierenberg Investment Management Co Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Northern Trust Corp | Institution | 379,259 | Added More | 41,798 | 12.38 % | $5,529,596 | $5,123,789 | $-405,807 | -7.33 % | $-44,724 | | | | | | News Article | History of Northern Trust Corp Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR/A | Oppenheimer Funds Inc | Institution | 706,886 | Added More | 308,821 | 77.58 % | $10,306,398 | $9,550,030 | $-756,368 | -7.33 % | $-330,438 | | | | | | News Article | History of Oppenheimer Funds Inc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR/A | Rafferty Asset Management Llc | Institution | 19,824 | Sold Some | -9,551 | -32.51 % | $289,034 | $267,822 | $-21,212 | -7.33 % | $10,220 | | | | | | News Article | History of Rafferty Asset Management Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Two Sigma Investments Llc | Institution | 16,700 | New Holding | 16,700 | 100 % | $243,486 | $225,617 | $-17,869 | -7.33 % | $-17,869 | | | | | | News Article | History of Two Sigma Investments Llc Ownership Of Natus Medical Inc |
| 2009-11-16 | 2009-09-30 | 13F-HR | Us Bancorp De | Institution | 2,040 | No Change | 0 | 0 % | $29,743 | $27,560 | $-2,183 | -7.33 % | $0 | | | | | | News Article | History of Us Bancorp De Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Ameriprise Financial Inc | Institution | 38,302 | Added More | 2,100 | 5.80 % | $537,760 | $517,460 | $-20,300 | -3.77 % | $-1,113 | | | | | | News Article | History of Ameriprise Financial Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Axa | Institution | 52,302 | Sold Some | -24,313 | -31.73 % | $734,320 | $706,600 | $-27,720 | -3.77 % | $12,886 | | | | | | News Article | History of Axa Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Bamco Inc | Institution | 544,392 | Sold Some | -605,608 | -52.66 % | $7,643,264 | $7,354,736 | $-288,528 | -3.77 % | $320,972 | | | | | | News Article | History of Bamco Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Barclays Plc | Institution | 42,242 | Added More | 41,676 | 7363.25 % | $593,078 | $570,689 | $-22,388 | -3.77 % | $-22,088 | | | | | | News Article | History of Barclays Plc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Cannell J Carlo | Institution | 386,000 | Added More | 130,800 | 51.25 % | $5,419,440 | $5,214,860 | $-204,580 | -3.77 % | $-69,324 | | | | | | News Article | History of Cannell J Carlo Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Delaware Management Business Trust | Institution | 17,600 | Sold Some | -1,400 | -7.36 % | $247,104 | $237,776 | $-9,328 | -3.77 % | $742 | | | | | | News Article | History of Delaware Management Business Trust Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Ensemble Capital Management Llc | Institution | | Sold All | -75,500 | -100 % | | | | -3.77 % | $40,015 | | | | | | News Article | History of Ensemble Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Gartmore Mutual Fund Capital Trust | Institution | 315 | Sold Some | -20,785 | -98.50 % | $4,423 | $4,256 | $-167 | -3.77 % | $11,016 | | | | | | News Article | History of Gartmore Mutual Fund Capital Trust Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Geode Capital Management Llc | Institution | 80,433 | Added More | 13,296 | 19.80 % | $1,129,279 | $1,086,650 | $-42,629 | -3.77 % | $-7,047 | | | | | | News Article | History of Geode Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Goldman Sachs Group Inc | Institution | 347,352 | Sold Some | -24,314 | -6.54 % | $4,876,822 | $4,692,726 | $-184,097 | -3.77 % | $12,886 | | | | | | News Article | History of Goldman Sachs Group Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Heartland Advisors Inc | Institution | | Sold All | -50,000 | -100 % | | | | -3.77 % | $26,500 | | | | | | News Article | History of Heartland Advisors Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Jacobs Levy Equity Management Inc | Institution | | Sold All | -17,800 | -100 % | | | | -3.77 % | $9,434 | | | | | | News Article | History of Jacobs Levy Equity Management Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Jennison Associates Llc | Institution | 360,200 | Sold Some | -6,400 | -1.74 % | $5,057,208 | $4,866,302 | $-190,906 | -3.77 % | $3,392 | | | | | | News Article | History of Jennison Associates Llc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Los Angeles Capital Management And Equity Research Inc | Institution | 32,030 | New Holding | 32,030 | 100 % | $449,701 | $432,725 | $-16,976 | -3.77 % | $-16,976 | | | | | | News Article | History of Los Angeles Capital Management And Equity Research Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Mason Street Advisors Llc | Institution | 1,750 | Added More | 72 | 4.29 % | $24,570 | $23,643 | $-928 | -3.77 % | $-38 | | | | | | News Article | History of Mason Street Advisors Llc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | New York State Common Retirement Fund | Institution | 57,200 | Added More | 4,900 | 9.36 % | $803,088 | $772,772 | $-30,316 | -3.77 % | $-2,597 | | | | | | News Article | History of New York State Common Retirement Fund Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Plante Moran Financial Advisors Ltd Partnership | Institution | | Sold All | -890 | -100 % | | | | -3.77 % | $472 | | | | | | News Article | History of Plante Moran Financial Advisors Ltd Partnership Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Public Sector Pension Investment Board | Institution | 25,700 | New Holding | 25,700 | 100 % | $360,828 | $347,207 | $-13,621 | -3.77 % | $-13,621 | | | | | | News Article | History of Public Sector Pension Investment Board Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Rbc Capital Markets Arbitrage S A | Institution | 4,961 | New Holding | 4,961 | 100 % | $69,652 | $67,023 | $-2,629 | -3.77 % | $-2,629 | | | | | | News Article | History of Rbc Capital Markets Arbitrage S A Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Rbc Dain Rauscher Inc | Institution | 4,231 | New Holding | 4,231 | 100 % | $59,403 | $57,161 | $-2,242 | -3.77 % | $-2,242 | | | | | | News Article | History of Rbc Dain Rauscher Inc Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Renaissance Technologies Corp | Institution | 62,774 | New Holding | 62,774 | 100 % | $881,347 | $848,077 | $-33,270 | -3.77 % | $-33,270 | | | | | | News Article | History of Renaissance Technologies Corp Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Sei Trust Co | Institution | 81,293 | Added More | 1,014 | 1.26 % | $1,141,354 | $1,098,268 | $-43,085 | -3.77 % | $-537 | | | | | | News Article | History of Sei Trust Co Ownership Of Natus Medical Inc |
| 2009-11-13 | 2009-09-30 | 13F-HR | Vanguard Group Inc | Institution | 1,256,625 | Added More | 20,534 | 1.66 % | $17,643,015 | $16,977,004 | $-666,011 | -3.77 % | $-10,883 | | | | | | News Article | History of Vanguard Group Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Bank Of America Corp | Institution | 121,620 | Added More | 16,325 | 15.50 % | $1,708,761 | $1,643,086 | $-65,675 | -3.84 % | $-8,816 | | | | | | News Article | History of Bank Of America Corp Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Barclays Global Investors Uk Holdings Ltd | Institution | 2,256,536 | Added More | 150,278 | 7.13 % | $31,704,331 | $30,485,801 | $-1,218,529 | -3.84 % | $-81,150 | | | | | | News Article | History of Barclays Global Investors Uk Holdings Ltd Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Bbt Capital Management Inc | Institution | 50,000 | Sold Some | -150,000 | -75.00 % | $702,500 | $675,500 | $-27,000 | -3.84 % | $81,000 | | | | | | News Article | History of Bbt Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Beddow Capital Management Inc | Institution | 154,300 | Added More | 38,950 | 33.76 % | $2,167,915 | $2,084,593 | $-83,322 | -3.84 % | $-21,033 | | | | | | News Article | History of Beddow Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR/A | Ing Investment Management Co | Institution | 11,280 | Added More | 1,930 | 20.64 % | $158,484 | $152,393 | $-6,091 | -3.84 % | $-1,042 | | | | | | News Article | History of Ing Investment Management Co Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Kbc Group Nv | Institution | 11,482 | Added More | 2,405 | 26.49 % | $161,322 | $155,122 | $-6,200 | -3.84 % | $-1,299 | | | | | | News Article | History of Kbc Group Nv Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Marxe Austin W And Greenhouse David M | Institution | 1,112,865 | No Change | 0 | 0 % | $15,635,753 | $15,034,806 | $-600,947 | -3.84 % | $0 | | | | | | News Article | History of Marxe Austin W And Greenhouse David M Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Merrill Lynch And Co Inc | Institution | 413 | Sold Some | -4,781 | -92.04 % | $5,803 | $5,580 | $-223 | -3.84 % | $2,582 | | | | | | News Article | History of Merrill Lynch And Co Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Mfc Global Investment Management Usa Ltd | Institution | 28,332 | Added More | 2,325 | 8.93 % | $398,065 | $382,765 | $-15,299 | -3.84 % | $-1,256 | | | | | | News Article | History of Mfc Global Investment Management Usa Ltd Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Padco Advisors Ii Inc | Institution | 8,998 | Added More | 2,085 | 30.16 % | $126,422 | $121,563 | $-4,859 | -3.84 % | $-1,126 | | | | | | News Article | History of Padco Advisors Ii Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Padco Advisors Inc | Institution | 4,716 | Sold Some | -284 | -5.68 % | $66,260 | $63,713 | $-2,547 | -3.84 % | $153 | | | | | | News Article | History of Padco Advisors Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Principal Financial Group Inc | Institution | 102,259 | Added More | 1,701 | 1.69 % | $1,436,739 | $1,381,519 | $-55,220 | -3.84 % | $-919 | | | | | | News Article | History of Principal Financial Group Inc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Susquehanna International Group Llp | Institution | | Sold All | -12,009 | -100 % | | | | -3.84 % | $6,485 | | | | | | News Article | History of Susquehanna International Group Llp Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Tewksbury Capital Management Ltd | Institution | 19,243 | New Holding | 19,243 | 100 % | $270,364 | $259,973 | $-10,391 | -3.84 % | $-10,391 | | | | | | News Article | History of Tewksbury Capital Management Ltd Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Welch Capital Partners Llc | Institution | | Sold All | -91,900 | -100 % | | | | -3.84 % | $49,626 | | | | | | News Article | History of Welch Capital Partners Llc Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Westwood Management Corp | Institution | 804,519 | Added More | 21,752 | 2.77 % | $11,303,492 | $10,869,052 | $-434,440 | -3.84 % | $-11,746 | | | | | | News Article | History of Westwood Management Corp Ownership Of Natus Medical Inc |
| 2009-11-12 | 2009-09-30 | 13F-HR | Zacks Investment Management | Institution | | Sold All | -12,826 | -100 % | | | | -3.84 % | $6,926 | | | | | | News Article | History of Zacks Investment Management Ownership Of Natus Medical Inc |
| 2009-11-10 | 2009-09-30 | 13F-HR | Citigroup Inc | Institution | 13,973 | Sold Some | -215,491 | -93.91 % | $206,241 | $188,775 | $-17,466 | -8.46 % | $269,364 | | | | | | News Article | History of Citigroup Inc Ownership Of Natus Medical Inc |
| 2009-11-10 | 2009-09-30 | 13F-HR | Comerica Bank | Institution | 33,454 | Added More | 2,036 | 6.48 % | $493,781 | $451,964 | $-41,818 | -8.46 % | $-2,545 | | | | | | News Article | History of Comerica Bank Ownership Of Natus Medical Inc |
| 2009-11-10 | 2009-09-30 | 13F-HR | Highbridge Capital Management Llc | Institution | 29,625 | New Holding | 29,625 | 100 % | $437,265 | $400,234 | $-37,031 | -8.46 % | $-37,031 | | | | | | News Article | History of Highbridge Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-10 | 2009-09-30 | 13F-HR | J P Morgan Chase And Co | Institution | 1,125,355 | Added More | 46,156 | 4.27 % | $16,610,240 | $15,203,546 | $-1,406,694 | -8.46 % | $-57,695 | | | | | | News Article | History of J P Morgan Chase And Co Ownership Of Natus Medical Inc |
| 2009-11-10 | 2009-09-30 | 13F-HR | Tesseract Capital Llc | No Data | 400 | Sold Some | -4,517 | -91.86 % | $5,904 | $5,404 | $-500 | -8.46 % | $5,646 | | | | | | News Article | History of Tesseract Capital Llc Ownership Of Natus Medical Inc |
| 2009-11-10 | 2009-09-30 | 13F-HR | Ubs Ag | Institution | 48,643 | Added More | 165 | 0.34 % | $717,971 | $657,167 | $-60,804 | -8.46 % | $-206 | | | | | | News Article | History of Ubs Ag Ownership Of Natus Medical Inc |
| 2009-11-09 | 2009-09-30 | 13F-HR | Cadence Capital Management Llc | Institution | 91,200 | New Holding | 91,200 | 100 % | $1,355,232 | $1,232,112 | $-123,120 | -9.08 % | $-123,120 | | | | | | News Article | History of Cadence Capital Management Llc Ownership Of Natus Medical Inc |
| 2009-11-09 | 2009-09-30 | 13F-HR | Ccm Partners | Institution | 1,600 | No Change | 0 | 0 % | $23,776 | $21,616 | $-2,160 | -9.08 % | $0 | | | | | | News Article | History of Ccm Partners Ownership Of Natus Medical Inc |
| 2009-11-09 | 2009-09-30 | 13F-HR | Missouri Valley Partners Inc | Institution | 22,072 | New Holding | 22,072 | 100 % | $327,990 | $298,193 | $-29,797 | -9.08 % | $-29,797 | | | | | | News Article | History of Missouri Valley Partners Inc Ownership Of Natus Medical Inc |
| 2009-11-09 | 2009-09-30 | 13F-HR | North Pointe Capital Llc | Institution | | Sold All | -84,100 | -100 % | | | | -9.08 % | $113,535 | | | | | | News Article | History of North Pointe Capital Llc Ownership Of Natus Medical Inc |
| 2009-11-09 | 2009-09-30 | 13F-HR | Vtl Associates Llc | Institution | | Sold All | -2 | -100 % | | | | -9.08 % | $3 | | | | | | News Article | History of Vtl Associates Llc Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR/A | Baird Robert W And Co Inc | Institution | 11,500 | Sold Some | -2,675 | -18.87 % | $168,935 | $155,365 | $-13,570 | -8.03 % | $3,157 | | | | | | News Article | History of Baird Robert W And Co Inc Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Blair William And Co | Institution | 467,295 | Sold Some | -286,105 | -37.97 % | $6,864,564 | $6,313,155 | $-551,408 | -8.03 % | $337,604 | | | | | | News Article | History of Blair William And Co Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Hartford Investment Management Co | Institution | 5,670 | Added More | 10 | 0.17 % | $83,292 | $76,602 | $-6,691 | -8.03 % | $-12 | | | | | | News Article | History of Hartford Investment Management Co Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Metropolitan Life Insurance Co | Institution | 26,883 | No Change | 0 | 0 % | $394,911 | $363,189 | $-31,722 | -8.03 % | $0 | | | | | | News Article | History of Metropolitan Life Insurance Co Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Pnc Financial Services Group Inc | Institution | 500 | Sold Some | -264 | -34.55 % | $7,345 | $6,755 | $-590 | -8.03 % | $312 | | | | | | News Article | History of Pnc Financial Services Group Inc Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Teachers Advisors Inc | Institution | 24,037 | No Change | 0 | 0 % | $353,104 | $324,740 | $-28,364 | -8.03 % | $0 | | | | | | News Article | History of Teachers Advisors Inc Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Tiaa Cref Investment Management Llc | Institution | 162,986 | No Change | 0 | 0 % | $2,394,264 | $2,201,941 | $-192,323 | -8.03 % | $0 | | | | | | News Article | History of Tiaa Cref Investment Management Llc Ownership Of Natus Medical Inc |
| 2009-11-06 | 2009-09-30 | 13F-HR | Tygh Capital Management Inc | Institution | 820,162 | New Holding | 820,162 | 100 % | $12,048,180 | $11,080,389 | $-967,791 | -8.03 % | $-967,791 | | | | | | News Article | History of Tygh Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-11-05 | 2009-09-30 | 13F-HR | Fixed Income Securities Lp | Institution | 1,318 | Sold Some | -900 | -40.57 % | $19,480 | $17,806 | $-1,674 | -8.59 % | $1,143 | | | | | | News Article | History of Fixed Income Securities Lp Ownership Of Natus Medical Inc |
| 2009-11-05 | 2009-09-30 | 13F-HR | Nisa Investment Advisors L L C | Institution | 11,400 | No Change | 0 | 0 % | $168,492 | $154,014 | $-14,478 | -8.59 % | $0 | | | | | | News Article | History of Nisa Investment Advisors L L C Ownership Of Natus Medical Inc |
| 2009-11-05 | 2009-09-30 | 13F-HR | Parametric Portfolio Associates | Institution | 10,313 | New Holding | 10,313 | 100 % | $152,426 | $139,329 | $-13,098 | -8.59 % | $-13,098 | | | | | | News Article | History of Parametric Portfolio Associates Ownership Of Natus Medical Inc |
| 2009-11-05 | 2009-09-30 | 13F-HR | Profund Advisors Llc | Institution | 11,490 | New Holding | 11,490 | 100 % | $169,822 | $155,230 | $-14,592 | -8.59 % | $-14,592 | | | | | | News Article | History of Profund Advisors Llc Ownership Of Natus Medical Inc |
| 2009-11-05 | 2009-09-30 | 13F-HR | Proshare Advisors Llc | Institution | 11,284 | Sold Some | -3,855 | -25.46 % | $166,778 | $152,447 | $-14,331 | -8.59 % | $4,896 | | | | | | News Article | History of Proshare Advisors Llc Ownership Of Natus Medical Inc |
| 2009-11-04 | 2009-09-30 | 13F-HR | Gw Capital Management Incco | Institution | 14,604 | Sold Some | -587 | -3.86 % | $211,758 | $197,300 | $-14,458 | -6.82 % | $581 | | | | | | News Article | History of Gw Capital Management Incco Ownership Of Natus Medical Inc |
| 2009-11-04 | 2009-09-30 | 13F-HR | Thomson Horstmann And Bryant Inc | Institution | 1,095,550 | Added More | 54,450 | 5.23 % | $15,885,475 | $14,800,881 | $-1,084,595 | -6.82 % | $-53,906 | | | | | | News Article | History of Thomson Horstmann And Bryant Inc Ownership Of Natus Medical Inc |
| 2009-11-03 | 2009-09-30 | 13F-HR | Private Trust Co Na | Institution | | Sold All | -25 | -100 % | | | | -7.14 % | $26 | | | | | | News Article | History of Private Trust Co Na Ownership Of Natus Medical Inc |
| 2009-11-03 | 2009-09-30 | 13F-HR | Prudential Financial Inc | Institution | 53,925 | Added More | 3,318 | 6.55 % | $784,609 | $728,527 | $-56,082 | -7.14 % | $-3,451 | | | | | | News Article | History of Prudential Financial Inc Ownership Of Natus Medical Inc |
| 2009-11-03 | 2009-09-30 | 13F-HR | Skylands Capital Llc | Institution | 12,700 | Sold Some | -65,300 | -83.71 % | $184,785 | $171,577 | $-13,208 | -7.14 % | $67,912 | | | | | | News Article | History of Skylands Capital Llc Ownership Of Natus Medical Inc |
| 2009-11-03 | 2009-09-30 | 13F-HR | Sparta Asset Management Llc | Institution | 285,404 | Sold Some | -61,891 | -17.82 % | $4,152,628 | $3,855,808 | $-296,820 | -7.14 % | $64,367 | | | | | | News Article | History of Sparta Asset Management Llc Ownership Of Natus Medical Inc |
| 2009-11-03 | 2009-09-30 | 13F-HR | Turner Investment Partners Inc | Institution | 47,760 | New Holding | 47,760 | 100 % | $694,908 | $645,238 | $-49,670 | -7.14 % | $-49,670 | | | | | | News Article | History of Turner Investment Partners Inc Ownership Of Natus Medical Inc |
| 2009-11-02 | 2009-09-30 | 13F-HR | Needham Investment Management Llc | Institution | | Sold All | -10,000 | -100 % | | | | -9.51 % | $14,200 | | | | | | News Article | History of Needham Investment Management Llc Ownership Of Natus Medical Inc |
| 2009-11-02 | 2009-09-30 | 13F-HR | Thrivent Financial For Lutherans | Institution | 14,600 | New Holding | 14,600 | 100 % | $217,978 | $197,246 | $-20,732 | -9.51 % | $-20,732 | | | | | | News Article | History of Thrivent Financial For Lutherans Ownership Of Natus Medical Inc |
| 2009-10-30 | 2009-09-30 | 13F-HR | Oxford Asset Management | Institution | 85,918 | New Holding | 85,918 | 100 % | $1,193,401 | $1,160,752 | $-32,649 | -2.73 % | $-32,649 | | | | | | News Article | History of Oxford Asset Management Ownership Of Natus Medical Inc |
| 2009-10-30 | 2009-09-30 | 13F-HR/A | Perkins Capital Management Inc | Institution | 50,725 | Added More | 26,500 | 109.39 % | $704,570 | $685,295 | $-19,276 | -2.73 % | $-10,070 | | | | | | News Article | History of Perkins Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-10-30 | 2009-09-30 | 13F-HR | Robeco Investment Management Inc | Institution | | Sold All | -131,084 | -100 % | | | | -2.73 % | $49,812 | | | | | | News Article | History of Robeco Investment Management Inc Ownership Of Natus Medical Inc |
| 2009-10-30 | 2009-09-30 | 13F-HR | Texas Permanent School Fund | Institution | 45,541 | Added More | 132 | 0.29 % | $632,564 | $615,259 | $-17,306 | -2.73 % | $-50 | | | | | | News Article | History of Texas Permanent School Fund Ownership Of Natus Medical Inc |
| 2009-10-29 | 2009-09-30 | 13F-HR | Dimensional Fund Advisors Inc | Institution | 556,648 | Added More | 23,216 | 4.35 % | $8,182,726 | $7,520,314 | $-662,411 | -8.09 % | $-27,627 | | | | | | News Article | History of Dimensional Fund Advisors Inc Ownership Of Natus Medical Inc |
| 2009-10-29 | 2009-09-30 | 13F-HR | Lyz Capital Advisors Llc | Institution | 18,100 | Sold Some | -900 | -4.73 % | $266,070 | $244,531 | $-21,539 | -8.09 % | $1,071 | | | | | | News Article | History of Lyz Capital Advisors Llc Ownership Of Natus Medical Inc |
| 2009-10-27 | 2009-09-30 | 13F-HR | Forward Management Llc | Institution | 850 | No Change | 0 | 0 % | $12,793 | $11,484 | $-1,309 | -10.23 % | $0 | | | | | | News Article | History of Forward Management Llc Ownership Of Natus Medical Inc |
| 2009-10-27 | 2009-09-30 | 13F-HR | Sterling Johnston Capital Management Lp | Institution | 80,850 | Sold Some | -49,350 | -37.90 % | $1,216,793 | $1,092,284 | $-124,509 | -10.23 % | $75,999 | | | | | | News Article | History of Sterling Johnston Capital Management Lp Ownership Of Natus Medical Inc |
| 2009-10-26 | 2009-06-30 | 13F-HR/A | Ameriprise Financial Inc | Institution | 36,202 | Sold Some | -23,433 | -39.29 % | $553,529 | $489,089 | $-64,440 | -11.64 % | $41,711 | | | | | | News Article | History of Ameriprise Financial Inc Ownership Of Natus Medical Inc |
| 2009-10-22 | 2009-09-30 | 13F-HR | Blackrock Group Ltd | Institution | 8,700 | No Change | 0 | 0 % | $133,371 | $117,537 | $-15,834 | -11.87 % | $0 | | | | | | News Article | History of Blackrock Group Ltd Ownership Of Natus Medical Inc |
| 2009-10-22 | 2009-09-30 | 13F-HR | Blackrock Inc | No Data | | Sold All | -8,624 | -100 % | | | | -11.87 % | $15,696 | | | | | | News Article | History of Blackrock Inc Ownership Of Natus Medical Inc |
| 2009-10-22 | 2009-09-30 | 13F-HR | Blackrock Investment Management Llc | Institution | 87,542 | Added More | 15,788 | 22.00 % | $1,342,019 | $1,182,692 | $-159,326 | -11.87 % | $-28,734 | | | | | | News Article | History of Blackrock Investment Management Llc Ownership Of Natus Medical Inc |
| 2009-10-21 | 2009-09-30 | 13F-HR | Bank Of New York Mellon Corp | Institution | 1,205,728 | Sold Some | -17,975 | -1.46 % | $18,061,805 | $16,289,385 | $-1,772,420 | -9.81 % | $26,423 | | | | | | News Article | History of Bank Of New York Mellon Corp Ownership Of Natus Medical Inc |
| 2009-10-21 | 2009-09-30 | 13F-HR | State Board Of Administration Of Florida Retirement System | Institution | 56,565 | Added More | 13,896 | 32.56 % | $847,344 | $764,193 | $-83,151 | -9.81 % | $-20,427 | | | | | | News Article | History of State Board Of Administration Of Florida Retirement System Ownership Of Natus Medical Inc |
| 2009-10-20 | 2009-09-30 | 13F-HR | Public Employees Retirement Association Of Colorado | Institution | 2,900 | No Change | 0 | 0 % | $44,689 | $39,179 | $-5,510 | -12.32 % | $0 | | | | | | News Article | History of Public Employees Retirement Association Of Colorado Ownership Of Natus Medical Inc |
| 2009-10-20 | 2009-09-30 | 13F-HR | Teachers Retirement System Of The State Of Kentucky | Institution | 16,900 | No Change | 0 | 0 % | $260,429 | $228,319 | $-32,110 | -12.32 % | $0 | | | | | | News Article | History of Teachers Retirement System Of The State Of Kentucky Ownership Of Natus Medical Inc |
| 2009-10-19 | 2009-09-30 | 13F-HR | Strs Ohio | Institution | 10,400 | New Holding | 10,400 | 100 % | $165,776 | $140,504 | $-25,272 | -15.24 % | $-25,272 | | | | | | News Article | History of Strs Ohio Ownership Of Natus Medical Inc |
| 2009-10-16 | 2009-09-30 | 13F-HR | Capstone Asset Management Co | Institution | 13,050 | No Change | 0 | 0 % | $207,104 | $176,306 | $-30,798 | -14.87 % | $0 | | | | | | News Article | History of Capstone Asset Management Co Ownership Of Natus Medical Inc |
| 2009-10-15 | 2009-09-30 | 13F-HR | Harris Financial Corp | Institution | 31,180 | Sold Some | -13,870 | -30.78 % | $501,686 | $421,242 | $-80,444 | -16.03 % | $35,785 | | | | | | News Article | History of Harris Financial Corp Ownership Of Natus Medical Inc |
| 2009-10-15 | 2009-09-30 | 13F-HR | Public Employees Retirement System Of Ohio | Institution | 34,138 | No Change | 0 | 0 % | $549,280 | $461,204 | $-88,076 | -16.03 % | $0 | | | | | | News Article | History of Public Employees Retirement System Of Ohio Ownership Of Natus Medical Inc |
| 2009-10-15 | 2008-06-30 | 13F-HR/A | Clarivest Asset Management Llc | Institution | 6,400 | No Change | 0 | 0 % | $102,976 | $86,464 | $-16,512 | -16.03 % | $0 | | | | | | News Article | History of Clarivest Asset Management Llc Ownership Of Natus Medical Inc |
| 2009-10-13 | 2009-09-30 | 13F-HR | Wb Capital Management Inc | Institution | 59,125 | Added More | 25,860 | 77.73 % | $914,073 | $798,779 | $-115,294 | -12.61 % | $-50,427 | | | | | | News Article | History of Wb Capital Management Inc Ownership Of Natus Medical Inc |
| 2009-10-08 | 2009-09-30 | 13F-HR | Rhumbline Advisers | Institution | 53,756 | Added More | 1,401 | 2.67 % | $828,380 | $726,244 | $-102,136 | -12.32 % | $-2,662 | | | | | | News Article | History of Rhumbline Advisers Ownership Of Natus Medical Inc |
| 2009-09-25 | 2009-06-30 | 13F-HR/A | Kbc Group Nv | Institution | 9,077 | Added More | 758 | 9.11 % | $137,880 | $122,630 | $-15,249 | -11.05 % | $-1,273 | | | | | | News Article | History of Kbc Group Nv Ownership Of Natus Medical Inc |
| 2009-09-17 | 2009-06-30 | 13F-HR/A | Delaware Management Business Trust | Institution | 19,000 | Added More | 4,000 | 26.66 % | $319,580 | $256,690 | $-62,890 | -19.67 % | $-13,240 | | | | | | News Article | History of Delaware Management Business Trust Ownership Of Natus Medical Inc |
| 2009-09-11 | 2009-06-30 | 13F-HR/A | Barclays Global Investors Uk Holdings Ltd | Institution | 2,106,258 | Added More | 88,819 | 4.40 % | $30,919,867 | $28,455,546 | $-2,464,322 | -7.97 % | $-103,918 | | | | | | News Article | History of Barclays Global Investors Uk Holdings Ltd Ownership Of Natus Medical Inc |
| 2009-09-04 | 2009-06-30 | N-CSRS | Sun Capital Advisers Trust - Sc Oppenheimer Main Street Small Cap Fund | Small-Cap Core | 8,460 | Sold Some | -1,640 | -16.23 % | $120,132 | $114,295 | $-5,837 | -4.85 % | $1,132 | | | | | | News Article | History of Sun Capital Advisers Trust - Sc Oppenheimer Main Street Small Cap Fund Ownership Of Natus Medical Inc |
| 2009-09-01 | 2009-06-30 | 13F-HR/A | Amvescap Plc | Institution | 11,769 | Sold Some | -8,461 | -41.82 % | $164,884 | $158,999 | $-5,885 | -3.56 % | $4,231 | | | | | | News Article | History of Amvescap Plc Ownership Of Natus Medical Inc |
| 2009-09-01 | 2009-06-30 | 13F-HR/A | Fmr Corp | Institution | 1,000 | No Change | 0 | 0 % | $14,010 | $13,510 | $-500 | -3.56 % | $0 | | | | | | News Article | History of Fmr Corp Ownership Of Natus Medical Inc |
| 2009-08-28 | 2009-06-30 | 13F-HR/A | Wells Fargo And Co | Institution | 24,928 | Added More | 4,746 | 23.51 % | $359,960 | $336,777 | $-23,183 | -6.44 % | $-4,414 | | | | | | News Article | History of Wells Fargo And Co Ownership Of Natus Medical Inc |
| 2009-08-20 | 2009-06-30 | 13F-HR | Cannell J Carlo | Institution | 255,200 | Added More | 40,000 | 18.58 % | $3,616,184 | $3,447,752 | $-168,432 | -4.65 % | $-26,400 | | | | | | News Article | History of Cannell J Carlo Ownership Of Natus Medical Inc |
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