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WESTERN DIGITAL CORP
WESTERN DIGITAL CORP. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 4 Institutional holders with a total value of $163,022,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1,078,920 99,066,000 60.77%
2 Mizuho Trust & Banking Co., Ltd. 695,547 63,865,000 39.18%
3 SpiderRock Trading LLC 1,000 89,000 0.05% PRN
4 SpiderRock Trading LLC 1,000 2,000 0.00% Put PRN

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.