SIMPLEX TRADING, LLC - LAYNE CHRISTENSEN CO ownership

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LAYNE CHRISTENSEN CO's ticker is LAYN and the CUSIP is 521050104. A total of 61 filers reported holding LAYNE CHRISTENSEN CO in Q4 2015. The put-call ratio across all filers is - and the average weighting 0.2%.

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Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of LAYNE CHRISTENSEN CO
ValueSharesWeighting
Q1 2018$287,000
+28600.0%
19,294
+8958.2%
0.01%–
Q1 2016$1,000
-97.8%
213
-97.0%
0.00%
-100.0%
Q3 2015$45,000
+4400.0%
7,068
+1703.1%
0.00%–
Q1 2015$1,000
-87.5%
392
-51.5%
0.00%
-100.0%
Q4 2014$8,000–809–0.00%–
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Other shareholders
LAYNE CHRISTENSEN CO shareholders Q4 2015
NameSharesValueWeighting ↓
Renaissance Technologies 891,600$13,303,0000.01%
LADENBURG THALMANN FINANCIAL SERVICES INC. 33$00.00%
View complete list of LAYNE CHRISTENSEN CO shareholders