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Institutional Holdings of SEAGATE TECHNOLOGY. (STX) on 12/31/2011

1. Company Information

Company/StockSEAGATE TECHNOLOGY. (stock symbol: STX)
Funds Ownership285 out of total 3028 funds (9%) own this stock
Funds own total 328,196,767 shares, 76.31% of all outstanding shares
Funds SOLD -2,270,914 shares (-0.69%) in the quarter ended on 12/31/2011

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

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)FMR LLC36,192,911Cut -15.95%0.12%8.42%
2.)CLEARBRIDGE ADVISORS LLC21,466,942Cut -11.61%0.72%4.99%
3.)FRANKLIN RESOURCES INC16,333,562Added 0.66%0.20%3.80%
4.)GREENLIGHT CAPITAL INC14,448,973Unchanged4.53%3.36%
5.)VANGUARD GROUP INC14,291,883Added 0.85%0.04%3.32%
6.)LSV ASSET MANAGEMENT13,804,067Cut -5.74%0.70%3.21%
7.)AMERIPRISE FINANCIAL INC9,700,672Added 370.77%0.12%2.26%
8.)IRIDIAN ASSET MANAGEMENT LLC CT9,070,611Cut -8.30%2.93%2.11%
9.)BLACKROCK ADVISORS LLC8,520,759Cut -15.90%0.16%1.98%
10.)ROBECO INVESTMENT MANAGEMENT INC8,175,709Cut -17.44%0.66%1.90%
11.)SYSTEMATIC FINANCIAL MANAGEMENT LP7,168,800New1.09%1.67%
12.)RBS PARTNERS L P CT6,977,149Cut -28.29%2.00%1.62%
13.)ING INVESTMENT MANAGEMENT CO6,972,443Added 1,315.09%0.44%1.62%
14.)MORGAN STANLEY6,801,969Added 79.88%0.07%1.58%
15.)BLACKROCK INSTITUTIONAL TRUST COMPANY NA6,797,458Added 0.43%0.03%1.58%
16.)INVESCO LTD6,359,886Added 35.34%0.06%1.48%
17.)JAT CAPITAL MANAGEMENT LP5,501,322New3.34%1.28%
18.)BRANDYWINE ASSET MANAGEMENT LLC5,320,567Added 31.05%1.01%1.24%
19.)CI INVESTMENTS INC5,268,668Added 23.85%1.02%1.23%
20.)BLACKROCK GROUP LTD4,117,614Cut -9.52%0.06%0.96%



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

No.FundSharesPut/CallActivity(Shr)% Port.% Out. Shrs
1.)KARAMAAN GROUP LLC612,607Cut -39.65%16.43%0.14%
2.)SLS MANAGEMENT LLC310,245Cut -36.24%9.75%0.07%
3.)KINGDOM RIDGE CAPITAL LLC1,125,000New9.16%0.26%
4.)RAMSEY ASSET MANAGEMENT749,966Added 40.67%8.66%0.17%
5.)CAVALRY MANAGEMENT GROUP LLC2,400,000New5.26%0.56%
6.)JMP ASSET MANAGEMENT LLC1,336,700Added 15.38%4.88%0.31%
7.)GREENLIGHT CAPITAL INC14,448,973Unchanged4.53%3.36%
8.)TAHITHROMOS LLC454,008New4.50%0.11%
9.)NEEDHAM INVESTMENT MANAGEMENT LLC1,180,000Cut -6.35%4.43%0.27%
10.)JERICHO CAPITAL ASSET MANAGEMENT LP967,210New4.38%0.22%
11.)BHR CAPITAL LLC1,441,629Cut -42.27%4.38%0.34%
12.)CUMBERLAND ASSOCIATES LLC266,000Added 36.41%4.17%0.06%
13.)KINGDOM RIDGE CAPITAL LLC500,000CALLNew4.07%0.12%
14.)WESTCLIFF CAPITAL MANAGEMENT LLC CA145,616Added 24.07%3.99%0.03%
15.)CASTLEROCK ASSET MANAGEMENT INC694,016New3.93%0.16%
16.)NOKOMIS CAPITAL LLC282,100New3.67%0.07%
17.)JAT CAPITAL MANAGEMENT LP5,501,322New3.34%1.28%
18.)SAGE ASSET MANAGEMENT151,600New3.09%0.04%
19.)IRIDIAN ASSET MANAGEMENT LLC CT9,070,611Cut -8.30%2.93%2.11%
20.)LMM LLC MD 1,494,300Cut -35.06%2.34%0.35%

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

No.FundSharesPut/Call% Port.% Out. Shrs
1.)SYSTEMATIC FINANCIAL MANAGEMENT LP7,168,8001.09%1.67%
2.)JAT CAPITAL MANAGEMENT LP5,501,3223.34%1.28%
3.)CAVALRY MANAGEMENT GROUP LLC2,400,0005.26%0.56%
4.)AXA2,323,9900.26%0.54%
5.)TWO SIGMA INVESTMENTS LLC2,190,1130.43%0.51%
6.)APG ALL PENSIONS GROUP1,610,8000.11%0.37%
7.)ORIGIN ASSET MANAGEMENT LLP1,496,3741.41%0.35%
8.)FRIESS ASSOCIATES LLC1,400,0000.56%0.33%
9.)KINGDOM RIDGE CAPITAL LLC1,125,0009.16%0.26%
10.)COBALT CAPITAL MANAGEMENT INC1,000,0001.22%0.23%
11.)CONTOUR ASSET MANAGEMENT LLC1,000,0001.32%0.23%
12.)JERICHO CAPITAL ASSET MANAGEMENT LP967,2104.38%0.22%
13.)MOORE CAPITAL MANAGEMENT LLC800,0000.46%0.19%
14.)CLOUGH CAPITAL PARTNERS L P737,1000.34%0.17%
15.)STELLIAM INVESTMENT MANAGEMENT LP700,0001.32%0.16%
16.)CONTOUR ASSET MANAGEMENT LLC700,000CALL0.93%0.16%
17.)CASTLEROCK ASSET MANAGEMENT INC694,0163.93%0.16%
18.)CHILTON INVESTMENT CO LLC670,6780.28%0.16%
19.)QS INVESTORS LLC546,3000.14%0.13%
20.)KINGDOM RIDGE CAPITAL LLC500,000CALL4.07%0.12%

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

No.FundSharesPut/Call% Port.% Out. Shrs
1.)OWL CREEK ASSET MANAGEMENT LP9,596,3003.11%2.23%
2.)HIGHFIELDS CAPITAL MANAGEMENT LP7,721,2950.98%1.80%
3.)SUNTRUST BANKS INC3,262,0440.17%0.76%
4.)LEVIN CAPITAL STRATEGIES LP1,943,7310.75%0.45%
5.)PRICE T ROWE ASSOCIATES INC MD 1,629,8000.01%0.38%
6.)SERENGETI ASSET MANAGEMENT LP700,000CALL0.87%0.16%
7.)CHUBB CORP700,0000.53%0.16%
8.)7X7 ASSET MANAGEMENT LLC586,4392.26%0.14%
9.)MAGNETAR FINANCIAL LLC564,8120.32%0.13%
10.)SURSUM CAPITAL MANAGEMENT LP500,0002.57%0.12%
11.)PGGM INVESTMENTS484,1900.03%0.11%
12.)HGK ASSET MANAGEMENT INC411,6500.21%0.10%
13.)BODRI CAPITAL MANAGEMENT LLC282,1632.66%0.07%
14.)TIMBER HILL LLC215,600CALL0.01%0.05%
15.)CONNABLE OFFICE INC117,3680.42%0.03%
16.)TIMBER HILL LLC117,100PUT0.00%0.03%
17.)ZACKS INVESTMENT MANAGEMENT112,8080.10%0.03%
18.)ARBITER PARTNERS LP96,231CALL0.16%0.02%
19.)MESSNER & SMITH THEME VALUE INVESTMENT MANAGEMENT LTD CA 95,0131.25%0.02%
20.)BASCOM HILL PARTNERS LLC81,6000.53%0.02%