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Institutional Holdings of HOLOGIC, INC. (HOLX) on 12/31/2011

1. Company Information

Company/StockHOLOGIC, INC. (stock symbol: HOLX)
Funds Ownership298 out of total 3028 funds (10%) own this stock
Funds own total 233,594,592 shares, 89.32% of all outstanding shares
Funds SOLD -2,601,207 shares (-1.10%) in the quarter ended on 12/31/2011

2. Top 20 Funds Held HOLX in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)CAPITAL RESEARCH GLOBAL INVESTORS31,154,950Unchanged0.24%11.91%
2.)WELLINGTON MANAGEMENT CO LLP19,888,864Cut -4.96%0.14%7.60%
3.)VANGUARD GROUP INC10,258,266Added 0.54%0.03%3.92%
4.)BLACKROCK ADVISORS LLC8,573,610Added 10.75%0.17%3.28%
5.)FMR LLC7,810,198Added 101.70%0.03%2.99%
6.)STATE STREET CORP7,659,512Cut -0.82%0.02%2.93%
7.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA7,000,707Added 8.00%0.03%2.68%
8.)PERKINS INVESTMENT MANAGEMENT LLC6,067,627Cut -8.59%0.67%2.32%
9.)GOLDMAN SACHS GROUP INC6,039,570Cut -2.51%0.05%2.31%
10.)INVESCO LTD5,667,508Cut -1.71%0.06%2.17%
11.)TIMESSQUARE CAPITAL MANAGEMENT LLC5,650,550Cut -1.55%0.77%2.16%
12.)WESTWOOD MANAGEMENT CORP TX5,336,897Added 31.20%0.91%2.04%
13.)BLACKROCK FUND ADVISORS5,118,260Added 3.23%0.05%1.96%
14.)TCW GROUP INC4,873,396Added 2.36%0.39%1.86%
15.)DIMENSIONAL FUND ADVISORS INC4,415,866Added 7.07%0.10%1.69%
16.)PENNANT CAPITAL MANAGEMENT LLC3,825,174Unchanged1.74%1.46%
17.)RCM CAPITAL MANAGEMENT LLC3,687,645Added 47.74%0.33%1.41%
18.)ROBECO INVESTMENT MANAGEMENT INC3,517,818Added 58.50%0.30%1.35%
19.)D E SHAW & CO INC3,081,438Cut -7.65%0.15%1.18%
20.)THOMPSON SIEGEL & WALMSLEY LLC2,765,562Added 14.58%0.93%1.06%



3. Top 20 Funds Held HOLX in this Quarter (By % of Portfolio) Add to Yahoo Finance Message Board

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)EXPO CAPITAL MANAGEMENT LLC1,350,000Cut -28.95%5.80%0.52%
2.)KAHN BROTHERS & CO INC DE 1,574,814Cut -0.70%5.80%0.60%
3.)KING INVESTMENT ADVISORS INC TX850,441Added 0.84%4.72%0.33%
4.)GLENROCK INC350,000Cut -4.11%4.00%0.13%
5.)OMT CAPITAL MANAGEMENT LLC301,450Added 10.26%3.36%0.12%
6.)CENTAUR CAPITAL PARTNERS LP132,000Cut -12.00%2.86%0.05%
7.)AMERICAN CAPITAL MANAGEMENT INC666,136Cut -1.75%2.56%0.25%
8.)SPEARS ABACUS ADVISORS LLC777,975Cut -4.26%2.41%0.30%
9.)BROADVIEW ADVISORS LLC603,500Added 8.99%2.23%0.23%
10.)ARISTEIA CAPITAL LLC539,100Cut -14.51%2.02%0.21%
11.)PENNANT CAPITAL MANAGEMENT LLC3,825,174Unchanged1.74%1.46%
12.)PENN CAPITAL MANAGEMENT CO INC2,190,462Cut -19.95%1.59%0.84%
13.)INVESTOR RESOURCES GROUP LLC1,476,805Cut -6.71%1.54%0.56%
14.)SECTOR GAMMA ASA276,900Cut -6.74%1.38%0.11%
15.)RHG CAPITAL LP56,158New0.97%0.02%
16.)DE BURLO GROUP INC139,400Cut -6.13%0.95%0.05%
17.)THOMPSON SIEGEL & WALMSLEY LLC2,765,562Added 14.58%0.93%1.06%
18.)WESTWOOD MANAGEMENT CORP TX5,336,897Added 31.20%0.91%2.04%
19.)SUTTONBROOK CAPITAL MANAGEMENT LP169,400Cut -14.27%0.88%0.06%
20.)SEGALL BRYANT & HAMILL1,415,894Added 1.17%0.86%0.54%

4. Top 20 Funds BOUGHT NEW HOLX in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)JANUS CAPITAL MANAGEMENT LLC564,1000.01%0.22%
2.)DUPONT CAPITAL MANAGEMENT422,6400.17%0.16%
3.)WASATCH ADVISORS INC331,4720.08%0.13%
4.)CR INTRINSIC INVESTORS LLC200,0000.21%0.08%
5.)ZURCHER KANTONALBANK (ZURICH CANTONALBANK)174,2950.14%0.07%
6.)HALE & DORR CAPITAL MANAGEMENT LLC152,3210.42%0.06%
7.)CATAPULT CAPITAL MANAGEMENT LLC105,0000.27%0.04%
8.)FJARDE AP FONDEN (THE FOURTH SWEDISH NATIONAL PENSIONFUND)102,1260.04%0.04%
9.)LIGHTBOX CAPITAL MANAGEMENT LLC68,2760.68%0.03%
10.)COLONY GROUP LLC62,6260.24%0.02%
11.)ANDRA AP FONDEN56,5000.03%0.02%
12.)RHG CAPITAL LP56,1580.97%0.02%
13.)CAPITAL FUND MANAGEMENT SA47,400CALL0.02%0.02%
14.)HSBC HOLDINGS PLC38,6870.01%0.01%
15.)PEAK6 INVESTMENTS LP32,600CALL0.00%0.01%
16.)ADVANCE CAPITAL I INC30,6000.27%0.01%
17.)WILMINGTON TRUST NATIONAL ASSOCIATION29,0930.03%0.01%
18.)HUTCHIN HILL CAPITAL LP27,8000.09%0.01%
19.)WESTPAC BANKING CORP25,3270.01%0.01%
20.)GRANITE INVESTMENT PARTNERS LLC24,5760.12%0.01%

5. Top 20 Funds SOLD OUT HOLX in this Quarter (By Shares) Add to Yahoo Finance Message Board

No.FundSharesPut/Call% Port.% Out. Shrs
1.)JANUS CAPITAL MANAGEMENT LLC990,7000.02%0.38%
2.)GOLDEN CAPITAL MANAGEMENT LLC959,6430.85%0.37%
3.)PECONIC PARTNERS LLC771,6002.13%0.30%
4.)REINHART MAHONEY CAPITAL MANAGEMENT INC601,3841.16%0.23%
5.)AXA FINANCIAL INC311,0530.03%0.12%
6.)TUDOR INVESTMENT CORP ET AL300,000CALL0.18%0.11%
7.)WADDELL & REED FINANCIAL INC225,0000.01%0.09%
8.)BP PLC215,0000.23%0.08%
9.)TYGH CAPITAL MANAGEMENT INC179,3470.19%0.07%
10.)UBS OCONNOR LLC161,0690.05%0.06%
11.)PERCEPTIVE ADVISORS LLC117,5000.85%0.04%
12.)LAFLEUR & GODFREY INC107,2720.52%0.04%
13.)TIMBER HILL LLC81,900PUT0.00%0.03%
14.)HAMBRECHT & QUIST CAPITAL MANAGEMENT LLC79,8360.28%0.03%
15.)TIMBER HILL LLC72,700CALL0.00%0.03%
16.)COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS64,5310.02%0.02%
17.)ESSEX INVESTMENT MANAGEMENT CO LLC63,6930.10%0.02%
18.)COLONY GROUP LLC63,2710.24%0.02%
19.)GSA CAPITAL PARTNERS LLP60,6390.18%0.02%
20.)WELLINGTON SHIELDS CAPITAL MANAGEMENT LLC53,4000.28%0.02%