Spark Investment Management LLC - ALPHA PRO TECH LTD ownership

ALPHA PRO TECH LTD's ticker is APT and the CUSIP is 020772109. A total of 23 filers reported holding ALPHA PRO TECH LTD in Q4 2017. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
Spark Investment Management LLC ownership history of ALPHA PRO TECH LTD
ValueSharesWeighting
Q1 2019$48,000
-4.0%
13,5000.0%0.00%
-33.3%
Q4 2018$50,000
-44.4%
13,500
-46.9%
0.00%
-40.0%
Q3 2018$90,000
-6.2%
25,405
-12.1%
0.01%
-16.7%
Q2 2018$96,000
-8.6%
28,900
-8.5%
0.01%
-14.3%
Q1 2018$105,000
-38.2%
31,600
-25.6%
0.01%
-22.2%
Q4 2017$170,000
-17.9%
42,500
-21.0%
0.01%
-18.2%
Q3 2017$207,000
+3.5%
53,800
-20.9%
0.01%
-8.3%
Q2 2017$200,000
-5.2%
68,036
-11.6%
0.01%
-7.7%
Q1 2017$211,000
-12.4%
77,000
+11.6%
0.01%
-35.0%
Q4 2016$241,000
+12.6%
69,000
+15.6%
0.02%
+17.6%
Q3 2016$214,000
+170.9%
59,700
+70.1%
0.02%
+142.9%
Q2 2016$79,00035,1000.01%
Other shareholders
ALPHA PRO TECH LTD shareholders Q4 2017
NameSharesValueWeighting ↓
Ancora Advisors LLC 167,000$559,0000.02%
Polar Asset Management Partners Inc. 675,854$2,264,0000.02%
Founders Capital Management 6,000$20,0000.02%
Municipal Employees' Retirement System of Michigan 93,120$312,0000.02%
WealthTrust Axiom LLC 10,000$33,0000.01%
Granite Investment Partners, LLC 50,251$168,0000.01%
BRIDGEWAY CAPITAL MANAGEMENT, LLC 262,443$879,0000.01%
Spark Investment Management LLC 31,600$105,0000.01%
Renaissance Technologies 1,250,910$4,191,0000.01%
O'SHAUGHNESSY ASSET MANAGEMENT, LLC 12,036$40,0000.00%
View complete list of ALPHA PRO TECH LTD shareholders