Dark
Light
System
Security
WESTERN DIGITAL CORP
WESTERN DIGITAL CORP. Institutional holdings reported to the SEC.

Institutional Holders (2016Q3)
Portfolio Summary: 724 Institutional holders with a total value of $15,716,903,450.
#
Manager Name
Shares
Value ($)
%
Options
Notes
201 CITIGROUP INC 145,089 8,483,000 0.05%
202 Gilman Hill Asset Management, LLC 143,831 8,410,000 0.05%
203 Retirement Systems of Alabama 143,774 8,406,000 0.05%
204 ZURICH FINANCIAL SERVICES/ /FI 138,861 8,119,000 0.05%
205 JANE STREET GROUP, LLC 138,300 8,086,000 0.05% Call
206 BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp 138,230 8,082,000 0.05%
207 Dynamic Capital Management Ltd 134,613 7,871,000 0.05%
208 HONEYWELL INTERNATIONAL INC 131,500 7,689,000 0.05%
209 PRUDENTIAL PLC 131,476 7,687,000 0.05%
210 Walleye Trading LLC 131,026 7,661,000 0.05% Put
211 BlueCrest Capital Management Ltd 130,666 7,640,000 0.05%
212 GRIMES & Co WEALTH MANAGEMENT, LLC 130,571 7,635,000 0.05%
213 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 127,364 7,447,000 0.05%
214 DekaBank Deutsche Girozentrale 127,259 7,443,000 0.05%
215 EQUITEC SPECIALISTS, LLC 126,000 7,367,000 0.05% Put
216 Neuberger Berman Group LLC 126,000 7,367,000 0.05% Call
217 CANADA PENSION PLAN INVESTMENT BOARD 125,711 7,350,000 0.05%
218 KEYBANK NATIONAL ASSOCIATION/OH 121,818 7,123,000 0.05%
219 PUTNAM INVESTMENTS LLC 119,493 6,987,000 0.04%
220 L & S Advisors Inc 117,665 6,880,000 0.04%
221 QS Investors, LLC 114,331 6,685,000 0.04%
222 Spot Trading L.L.C 114,300 6,683,000 0.04% Put
223 QUENTEC ASSET MANAGEMENT LLC 112,400 6,572,000 0.04%
224 SENTINEL TRUST CO LBA 110,893 6,484,000 0.04%
225 SG Americas Securities, LLC 108,933 6,369,000 0.04%
226 VALTURA CAPITAL PARTNERS LLC 108,472 6,342,000 0.04%
227 IPG Investment Advisors LLC 108,080 6,319,438 0.04%
228 SPROTT INC. 107,000 6,256,000 0.04%
229 STONERIDGE INVESTMENT PARTNERS LLC 105,678 6,179,000 0.04%
230 ENVESTNET ASSET MANAGEMENT INC 103,876 6,074,000 0.04%
231 J.P. Morgan Private Wealth Advisors LLC 101,933 5,960,000 0.04%
232 QUADRATURE CAPITAL LTD 99,949 5,844,000 0.04%
233 STATE OF MICHIGAN RETIREMENT SYSTEM 99,185 5,799,000 0.04%
234 Apriem Advisors 98,568 5,763,000 0.04%
235 Foundry Partners, LLC 95,400 5,578,000 0.04%
236 OREGON PUBLIC EMPLOYEES RETIREMENT FUND 94,251 5,511,000 0.04%
237 NOMURA HOLDINGS INC 94,300 5,490,000 0.03% Call
238 STEEL GROVE CAPITAL ADVISORS, LLC 92,463 5,453,000 0.03%
239 Parallax Volatility Advisers, L.P. 93,100 5,444,000 0.03% Call
240 CITIGROUP INC 92,484 5,408,000 0.03% Call
241 AMP Capital Investors Ltd 92,598 5,395,000 0.03%
242 PHILADELPHIA TRUST CO 92,200 5,391,000 0.03%
243 Smith, Graham & Co., Investment Advisors, LP 90,949 5,318,000 0.03%
244 Employees Retirement System of Texas 89,864 5,254,000 0.03%
245 Candriam S.C.A. 89,550 5,236,000 0.03%
246 COMERICA BANK 89,402 5,189,000 0.03%
247 VestGen Investment Management 88,586 5,180,000 0.03%
248 NATIXIS ADVISORS, LLC 88,061 5,149,000 0.03%
249 TEXAS PERMANENT SCHOOL FUND CORP 87,544 5,119,000 0.03%
250 TRUST CO 86,540 5,060,000 0.03%
Page 5 of 15

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.