Boston Partners - ALPHA PRO TECH LTD ownership

ALPHA PRO TECH LTD's ticker is APT and the CUSIP is 020772109. A total of 18 filers reported holding ALPHA PRO TECH LTD in Q4 2013. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
Boston Partners ownership history of ALPHA PRO TECH LTD
ValueSharesWeighting
Q1 2014$616,000
-48.2%
274,977
-50.3%
0.00%
-50.0%
Q4 2013$1,189,000
+37.6%
553,098
-4.0%
0.00%0.0%
Q3 2013$864,000
-6.3%
576,0300.0%0.00%
-33.3%
Q2 2013$922,000576,0300.00%
Other shareholders
ALPHA PRO TECH LTD shareholders Q4 2013
NameSharesValueWeighting ↓
SHEPHERD KAPLAN KROCHUK, LLC 20,000$81,0000.07%
Ancora Advisors LLC 177,000$681,0000.04%
Granite Investment Partners, LLC 139,314$536,0000.03%
Municipal Employees' Retirement System of Michigan 93,120$359,0000.02%
Founders Capital Management 6,000$23,0000.02%
Polar Asset Management Partners Inc. 215,573$830,0000.02%
WealthTrust Axiom LLC 10,000$38,0000.01%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 262,443$1,010,0000.01%
Spark Investment Management LLC 53,800$207,0000.01%
Renaissance Technologies 1,263,010$4,863,0000.01%
View complete list of ALPHA PRO TECH LTD shareholders