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Iron Mountain Inc New
Iron Mountain Inc New . Institutional holdings reported to the SEC.

Institutional Holders (2014Q2)
Portfolio Summary: 404 Institutional holders with a total value of $7,270,463,030.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 Capital World Investors 23,273,014 825,028,000 11.35%
2 VANGUARD GROUP INC 12,366,885 438,406,000 6.03%
3 HIGHFIELDS CAPITAL MANAGEMENT LP 10,805,428 383,052,000 5.27%
4 SCHOONER CAPITAL CORP 8,251,277 292,508,000 4.02%
5 PARNASSUS INVESTMENTS, LLC 7,665,475 271,741,000 3.74%
6 STATE STREET CORP 7,084,438 251,146,000 3.45%
7 PRICE T ROWE ASSOCIATES INC /MD/ 6,995,308 247,984,000 3.41%
8 BROOKFIELD Corp /ON/ 5,541,114 196,432,000 2.70%
9 Capital International Investors 5,188,584 183,935,000 2.53%
10 CAPITAL GUARDIAN TRUST CO 4,621,202 163,822,000 2.25%
11 BlackRock Institutional Trust Company, N.A. 4,528,697 160,542,000 2.21%
12 RS INVESTMENT MANAGEMENT CO LLC 3,650,033 129,387,000 1.78%
13 Bank of New York Mellon Corp 3,522,515 124,872,000 1.72%
14 River Road Asset Management, LLC 3,425,937 121,449,000 1.67%
15 Owl Creek Asset Management, L.P. 3,243,011 114,965,000 1.58%
16 WASATCH ADVISORS LP 3,124,807 110,774,000 1.52%
17 ELLIOTT MANAGEMENT CORP 3,000,000 106,350,000 1.46%
18 Invesco Ltd. 2,808,825 99,573,000 1.37%
19 GOLDMAN SACHS GROUP INC 2,488,100 88,203,000 1.21% Call
20 NORTHERN TRUST CORP 2,395,048 84,905,000 1.17%
21 MUNDER CAPITAL MANAGEMENT 2,378,101 84,304,000 1.16%
22 JENNISON ASSOCIATES LLC 2,300,035 81,536,000 1.12%
23 BlackRock Fund Advisors 2,119,521 75,137,000 1.03%
24 BARCLAYS PLC 2,044,730 71,565,000 0.98%
25 HIGHFIELDS CAPITAL MANAGEMENT LP 2,000,000 70,900,000 0.98% Call
26 Makaira Partners LLC 1,996,251 70,767,000 0.97% SH
27 Westchester Capital Management, LLC 1,934,900 68,592,000 0.94%
28 GOLDMAN SACHS GROUP INC 1,891,971 67,070,000 0.92%
29 FMR LLC 1,870,681 66,316,000 0.91%
30 JET CAPITAL INVESTORS L P 1,657,800 58,769,000 0.81% Put
31 Westchester Capital Management, LLC 1,607,600 56,990,000 0.78% Put
32 ING GROEP NV 1,500,000 53,198,000 0.73%
33 MORGAN STANLEY 1,446,346 51,273,000 0.71%
34 NORGES BANK 1,419,468 50,320,000 0.69%
35 GEODE CAPITAL MANAGEMENT, LLC 1,252,930 44,389,000 0.61%
36 WELCH & FORBES LLC 1,241,832 44,023,000 0.61%
37 D. E. Shaw & Co., Inc. 1,229,979 43,602,000 0.60%
38 CONFLUENCE INVESTMENT MANAGEMENT LLC 1,124,096 39,849,000 0.55%
39 BlackRock Group LTD 1,111,752 39,412,000 0.54%
40 CREDIT SUISSE AG/ 1,037,680 36,785,000 0.51%
41 GOLDMAN SACHS GROUP INC 1,004,700 35,617,000 0.49% Put
42 MACKENZIE FINANCIAL CORP 1,000,268 35,460,000 0.49%
43 Stonerise Capital Management, LLC 1,000,000 35,450,000 0.49%
44 SUSQUEHANNA INTERNATIONAL GROUP, LLP 994,300 35,248,000 0.48% Put
45 GW CAPITAL INC 991,618 35,153,000 0.48%
46 CAPSTONE INVESTMENT ADVISORS, LLC 938,200 33,259,000 0.46% Call
47 PICTET ASSET MANAGEMENT LTD 798,437 28,305,000 0.39%
48 TOBAM 792,573 28,097,000 0.39%
49 Legal & General Group Plc 790,950 28,039,000 0.39%
50 DIMENSIONAL FUND ADVISORS LP 772,019 27,366,000 0.38%
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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.