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ALPHA PRO TECH LTD
ALPHA PRO TECH LTD. Institutional holdings reported to the SEC.

Institutional Holders (2015Q1)
Portfolio Summary: 29 Institutional holders with a total value of $5,709,000.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 RENAISSANCE TECHNOLOGIES LLC 1,468,590 3,334,000 58.40%
2 BRIDGEWAY CAPITAL MANAGEMENT, LLC 242,700 551,000 9.65%
3 VANGUARD GROUP INC 240,393 546,000 9.56%
4 Municipal Employees' Retirement System of Michigan 94,400 214,000 3.75%
5 SHEPHERD KAPLAN KROCHUK, LLC 73,500 167,000 2.93%
6 DIMENSIONAL FUND ADVISORS LP 72,697 165,000 2.89%
7 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 40,800 104,000 1.82%
8 Virtu KCG Holdings LLC 45,035 102,000 1.79%
9 BlackRock Fund Advisors 43,391 98,000 1.72%
10 Rotella Capital Management, Inc. 36,890 84,000 1.47%
11 GOLDMAN SACHS GROUP INC 28,271 64,000 1.12%
12 CITADEL ADVISORS LLC 24,067 55,000 0.96%
13 Spot Trading L.L.C 16,100 37,000 0.65% Put
14 NORTHERN TRUST CORP 15,465 35,000 0.61%
15 SUSQUEHANNA INTERNATIONAL GROUP, LLP 10,000 23,000 0.40% Put
16 JAMES INVESTMENT RESEARCH, INC. 9,825 22,000 0.39%
17 WealthTrust Axiom LLC 10,000 22,000 0.39%
18 UBS Group AG 7,088 16,000 0.28%
19 ROYAL BANK OF CANADA 6,750 16,000 0.28%
20 Spot Trading L.L.C 6,825 15,000 0.26%
21 BANK OF AMERICA CORP /DE/ 5,548 13,000 0.23%
22 JBF Capital, Inc. 3,600 8,000 0.14%
23 MORGAN STANLEY 3,169 7,000 0.12%
24 BlackRock Investment Management, LLC 2,302 5,000 0.09%
25 Creative Planning 700 2,000 0.04%
26 Tower Research Capital LLC (TRC) 1,060 2,000 0.04%
27 WELLS FARGO & COMPANY/MN 500 1,000 0.02%
28 NEXT Financial Group, Inc 750 1,000 0.02%
29 SIMPLEX TRADING, LLC 358 0 0.00%

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.