Notable Holders of Stamps.com, Inc. (STMP)
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* Does Not Fully Represent All Holders
Fund | Title | Shares | % Owned | Source |
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BlackRock Fund Advisors | COM NEW | 1,230,570 | 7.60% | 13F |
BlackRock Institutional Trust Company, N.A. | COM NEW | 407,523 | 2.52% | 13F |
WEATHERBIE M A & CO INC/MA | COM | 369,298 | 2.28% | 13F |
PEAK6 Investments, L.P. (PUT) | COM NEW | 179,200 | 1.11% | 13F |
RUSSELL FRANK CO/ | Common Stocks | 170,668 | 1.05% | 13F |
TEACHERS ADVISORS INC | CS | 157,683 | 0.97% | 13F |
GW CAPITAL INC | COM NEW | 111,192 | 0.69% | 13F |
BATTERYMARCH FINANCIAL MANAGEMENT INC | COM NEW | 95,172 | 0.59% | 13F |
BlackRock Investment Management, LLC | COM NEW | 81,741 | 0.51% | 13F |
OLD MUTUAL ASSET MANAGERS UK LTD | COM NEW | 56,132 | 0.35% | 13F |
Marshall Wace North America, L.P. | COMMON STOCK | 53,001 | 0.33% | 13F |
Emerald Acquisition Ltd. | Common Stocks | 49,293 | 0.30% | 13F |
Elk Creek Partners, LLC | COM NEW | 47,023 | 0.29% | 13F |
PIONEER INVESTMENT MANAGEMENT INC | COM NEW | 41,342 | 0.26% | 13F |
Keane Capital Partners, LLC | COM NEW | 36,000 | 0.22% | 13F |
TIAA CREF INVESTMENT MANAGEMENT LLC | CS | 33,097 | 0.20% | 13F |
Shinko Asset Management Co., Ltd. | COM NEW | 31,288 | 0.19% | 13F |
BlackRock Group LTD | COM NEW | 31,272 | 0.19% | 13F |
AHL Partners LLP | COM NEW | 28,084 | 0.17% | 13F |
Airain ltd | Com | 23,810 | 0.15% | 13F |
SPOT TRADING L.L.C. (PUT) | COM NEW | 21,600 | 0.13% | 13F |
MANAGED ACCOUNT ADVISORS LLC | COM NEW | 20,674 | 0.13% | 13F |
Thrax Management, LLC | COM NEW | 20,000 | 0.12% | 13F |
Aperio Group, LLC | COM NEW | 13,622 | 0.08% | 13F |
VIRGINIA RETIREMENT SYSTEM | COM NEW | 12,900 | 0.08% | 13F |
Fox Point Capital Management LLC | COM NEW | 12,500 | 0.08% | 13F |
GENEVA INVESTMENT MANAGEMENT OF CHICAGO LLC | COM | 10,481 | 0.06% | 13F |
BLACKROCK ADVISORS LLC | COM NEW | 8,673 | 0.05% | 13F |
Spot Trading L.L.C (CALL) | COM NEW | 8,600 | 0.05% | 13F |
ROYAL BANK OF CANADA \ | COM NEW | 5,929 | 0.04% | 13F |
Glen Harbor Capital Management LLC | COM | 5,644 | 0.03% | 13F |
BKS ADVISORS, LLC | COM NEW | 5,099 | 0.03% | 13F |
DIALECTIC CAPITAL MANAGEMENT, LLC (CALL) | COM NEW | 5,000 | 0.03% | 13F |
Meadow Creek Investment Management LLC | COM | 4,648 | 0.03% | 13F |
CAPSTONE ASSET MANAGEMENT CO | COM | 4,414 | 0.03% | 13F |
NEW CENTURY INVESTMENT MANAGEMENT, INC | COM NEW | 4,100 | 0.03% | 13F |
Elkfork Partners LLC | COM | 3,652 | 0.02% | 13F |
OPPENHEIMER FUNDS INC | COM NEW | 3,593 | 0.02% | 13F |
NATIONAL PENN INVESTORS TRUST CO /PA | Domestic Common | 3,490 | 0.02% | 13F |
INTEGRAL DERIVATIVES, LLC | COM | 3,464 | 0.02% | 13F |
Xact Kapitalforvaltning AB | COM | 3,372 | 0.02% | 13F |
Jump Trading, LLC | Common Stock | 3,019 | 0.02% | 13F |
Tyers Asset Management LLC | COM | 2,656 | 0.02% | 13F |
SOCIETE GENERALE | COM | 2,116 | 0.01% | 13F |
CenterStar Fund, LLC (CALL) | COM NEW | 2,100 | 0.01% | 13F |
SMITH ASSET MANAGEMENT GROUP LP | Common Stock - Long | 1,965 | 0.01% | 13F |
RIVERHEAD CAPITAL MANAGEMENT LLC | COM | 1,851 | 0.01% | 13F |