Dimensional Fund Advisors
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Dimensional Fund Advisors’s Koss Corp KOSS Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$54.5K Buy
+10,681
New +$54.5K ﹤0.01% 3234
2024
Q3
Sell
-145,958
Closed -$650K 3366
2024
Q2
$650K Buy
145,958
+9,813
+7% +$43.7K ﹤0.01% 2985
2024
Q1
$350K Sell
136,145
-360
-0.3% -$925 ﹤0.01% 3110
2023
Q4
$457K Buy
136,505
+2,514
+2% +$8.42K ﹤0.01% 3054
2023
Q3
$403K Hold
133,991
﹤0.01% 3086
2023
Q2
$496K Sell
133,991
-4
-0% -$15 ﹤0.01% 3063
2023
Q1
$619K Sell
133,995
-8,000
-6% -$37K ﹤0.01% 2999
2022
Q4
$693 Buy
141,995
+2,330
+2% +$11 ﹤0.01% 2983
2022
Q3
$887K Sell
139,665
-3,371
-2% -$21.4K ﹤0.01% 2912
2022
Q2
$994K Sell
143,036
-3,030
-2% -$21.1K ﹤0.01% 2914
2022
Q1
$1.34M Sell
146,066
-8,480
-5% -$77.7K ﹤0.01% 2921
2021
Q4
$1.65M Buy
154,546
+7,935
+5% +$84.8K ﹤0.01% 2896
2021
Q3
$2.4M Buy
146,611
+7,568
+5% +$124K ﹤0.01% 2805
2021
Q2
$3.23M Sell
139,043
-11,357
-8% -$264K ﹤0.01% 2729
2021
Q1
$3.38M Sell
150,400
-2,003
-1% -$45K ﹤0.01% 2695
2020
Q4
$524K Hold
152,403
﹤0.01% 3085
2020
Q3
$325K Sell
152,403
-5,749
-4% -$12.3K ﹤0.01% 3141
2020
Q2
$212K Sell
158,152
-8,899
-5% -$11.9K ﹤0.01% 3207
2020
Q1
$146K Hold
167,051
﹤0.01% 3233
2019
Q4
$257K Hold
167,051
﹤0.01% 3238
2019
Q3
$334K Hold
167,051
﹤0.01% 3206
2019
Q2
$334K Buy
167,051
+4,000
+2% +$8K ﹤0.01% 3250
2019
Q1
$334K Hold
163,051
﹤0.01% 3231
2018
Q4
$308K Hold
163,051
﹤0.01% 3219
2018
Q3
$453K Hold
163,051
﹤0.01% 3198
2018
Q2
$383K Hold
163,051
﹤0.01% 3163
2018
Q1
$290K Sell
163,051
-14,154
-8% -$25.2K ﹤0.01% 3181
2017
Q4
$548K Sell
177,205
-8,300
-4% -$25.7K ﹤0.01% 3085
2017
Q3
$278K Sell
185,505
-24,341
-12% -$36.5K ﹤0.01% 3174
2017
Q2
$397K Hold
209,846
﹤0.01% 3126
2017
Q1
$447K Sell
209,846
-7,959
-4% -$17K ﹤0.01% 3105
2016
Q4
$497K Sell
217,805
-735
-0.3% -$1.68K ﹤0.01% 3089
2016
Q3
$476K Sell
218,540
-4,930
-2% -$10.7K ﹤0.01% 3076
2016
Q2
$454K Hold
223,470
﹤0.01% 3070
2016
Q1
$469K Sell
223,470
-2,621
-1% -$5.5K ﹤0.01% 3058
2015
Q4
$443K Hold
226,091
﹤0.01% 3113
2015
Q3
$488K Hold
226,091
﹤0.01% 3116
2015
Q2
$522K Buy
226,091
+114
+0.1% +$263 ﹤0.01% 3133
2015
Q1
$549K Sell
225,977
-710
-0.3% -$1.73K ﹤0.01% 3091
2014
Q4
$397K Sell
226,687
-7,280
-3% -$12.8K ﹤0.01% 3166
2014
Q3
$473K Sell
233,967
-2,055
-0.9% -$4.15K ﹤0.01% 3158
2014
Q2
$746K Hold
236,022
﹤0.01% 3098
2014
Q1
$1.18M Hold
236,022
﹤0.01% 3005
2013
Q4
$1.21M Hold
236,022
﹤0.01% 2992
2013
Q3
$1.2M Sell
236,022
-1,004
-0.4% -$5.12K ﹤0.01% 3001
2013
Q2
$1.15M Buy
+237,026
New +$1.15M ﹤0.01% 2985