Dimensional Fund Advisors’s Koss Corp KOSS Stock Holding History

Dimensional Fund Advisors’s Portfolio KOSS Stock Details KOSS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$77.4K	Sell	21,611 -1,731	-7%	-$7.31K	﹤0.01%	3138
2025 Q4	$96.6K	Hold	23,342	–	–	﹤0.01%	3152
2025 Q3	$119K	Buy	23,342 +12,661	+119%	+$71.7K	﹤0.01%	3170
2025 Q2	$54.5K	Buy	+10,681	New	+$54K	﹤0.01%	3234
2024 Q3	–	Sell	-145,958	Closed	-$650K	–	3366
2024 Q2	$650K	Buy	145,958 +9,813	+7%	+$35.8K	﹤0.01%	2985
2024 Q1	$350K	Sell	136,145 -360	-0.3%	-$1K	﹤0.01%	3110
2023 Q4	$457K	Buy	136,505 +2,514	+2%	+$7.66K	﹤0.01%	3054
2023 Q3	$403K	Hold	133,991	–	–	﹤0.01%	3086
2023 Q2	$496K	Sell	133,991 -4	-0%	-$16	﹤0.01%	3063
2023 Q1	$619K	Sell	133,995 -8,000	-6%	-$41.8K	﹤0.01%	2999
2022 Q4	$693	Buy	141,995 +2,330	+2%	+$14.3K	﹤0.01%	2983
2022 Q3	$887K	Sell	139,665 -3,371	-2%	-$26.3K	﹤0.01%	2912
2022 Q2	$994K	Sell	143,036 -3,030	-2%	-$21K	﹤0.01%	2914
2022 Q1	$1.34M	Sell	146,066 -8,480	-5%	-$72.3K	﹤0.01%	2921
2021 Q4	$1.65M	Buy	154,546 +7,935	+5%	+$118K	﹤0.01%	2896
2021 Q3	$2.4M	Buy	146,611 +7,568	+5%	+$140K	﹤0.01%	2805
2021 Q2	$3.23M	Sell	139,043 -11,357	-8%	-$244K	﹤0.01%	2729
2021 Q1	$3.38M	Sell	150,400 -2,003	-1%	-$35.4K	﹤0.01%	2695
2020 Q4	$524K	Hold	152,403	–	–	﹤0.01%	3085
2020 Q3	$325K	Sell	152,403 -5,749	-4%	-$11.5K	﹤0.01%	3141
2020 Q2	$212K	Sell	158,152 -8,899	-5%	-$10.9K	﹤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%	+$8.29K	﹤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%	-$28.7K	﹤0.01%	3181
2017 Q4	$548K	Sell	177,205 -8,300	-4%	-$13.4K	﹤0.01%	3085
2017 Q3	$278K	Sell	185,505 -24,341	-12%	-$40.4K	﹤0.01%	3174
2017 Q2	$397K	Hold	209,846	–	–	﹤0.01%	3126
2017 Q1	$447K	Sell	209,846 -7,959	-4%	-$18.2K	﹤0.01%	3105
2016 Q4	$497K	Sell	217,805 -735	-0.3%	-$1.82K	﹤0.01%	3089
2016 Q3	$476K	Sell	218,540 -4,930	-2%	-$10.2K	﹤0.01%	3076
2016 Q2	$454K	Hold	223,470	–	–	﹤0.01%	3070
2016 Q1	$469K	Sell	223,470 -2,621	-1%	-$5.31K	﹤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%	+$287	﹤0.01%	3133
2015 Q1	$549K	Sell	225,977 -710	-0.3%	-$1.54K	﹤0.01%	3091
2014 Q4	$397K	Sell	226,687 -7,280	-3%	-$12.5K	﹤0.01%	3166
2014 Q3	$473K	Sell	233,967 -2,055	-0.9%	-$5.29K	﹤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%	-$5.18K	﹤0.01%	3001
2013 Q2	$1.15M	Buy	+237,026	New	+$1.15M	﹤0.01%	2985

Other funds holding KOSS

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

VFT

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

JIR

James Investment Research Alpha, Ohio $984M AUM 36.03% 1-Year Est. Return

NewEdge Advisors New Orleans, Louisiana $27.7B AUM 22.98% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

XTX Topco George Town, Cayman Islands $5.75B AUM 30.56% 1-Year Est. Return

PNC Financial Services Group Pittsburgh, Pennsylvania $173B AUM 20.72% 1-Year Est. Return

Dimensional Fund Advisors's KOSS Position: Q1 2026 in Review

Dimensional Fund Advisors reduced its Koss Corp (KOSS) stake by 7.4% in Q1 2026, selling an estimated $7.31K and leaving 21,611 shares worth $77.4K. The position accounts for ﹤0.01% of the portfolio, ranked #3138.

Dimensional Fund Advisors first reported a position in KOSS in Q2 2013 and has held it in 49 quarters since. The position peaked at $3.38M in Q1 2021. 23 funds tracked by Wall St. Rank hold KOSS as of Q1 2026.

Dimensional Fund Advisors held 21,611 shares of Koss Corp worth $77.4K as of Q1 2026.
Dimensional Fund Advisors sold 1,731 Koss Corp shares in Q1 2026, an estimated $7.31K.
Koss Corp made up ﹤0.01% of Dimensional Fund Advisors's portfolio in Q1 2026, its #3138 holding.
Dimensional Fund Advisors first reported a position in Koss Corp in Q2 2013 and has held it in 49 quarters since.
Dimensional Fund Advisors's Koss Corp position peaked at $3.38M in Q1 2021.
23 funds tracked by Wall St. Rank held Koss Corp as of Q1 2026.

Based on Dimensional Fund Advisors's 13F filing for Q1 2026, filed 7 May 2026.