Vanguard Group’s Koss Corp KOSS Stock Holding History

Vanguard Group’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
2025 Q4	$923K	Sell	222,991 -22,719	-9%	-$109K	﹤0.01%	3792
2025 Q3	$1.25M	Sell	245,710 -802	-0.3%	-$4.54K	﹤0.01%	3722
2025 Q2	$1.26M	Sell	246,512 -6,237	-2%	-$31.5K	﹤0.01%	3679
2025 Q1	$1.19M	Buy	252,749 +1,808	+0.7%	+$10.9K	﹤0.01%	3659
2024 Q4	$1.85M	Hold	250,941	–	–	﹤0.01%	3583
2024 Q3	$1.85M	Sell	250,941 -11,565	-4%	-$94.2K	﹤0.01%	3580
2024 Q2	$1.17M	Hold	262,506	–	–	﹤0.01%	3739
2024 Q1	$675K	Hold	262,506	–	–	﹤0.01%	3939
2023 Q4	$879K	Buy	262,506 +3,485	+1%	+$10.6K	﹤0.01%	3870
2023 Q3	$767K	Buy	259,021 +7,408	+3%	+$27.1K	﹤0.01%	3925
2023 Q2	$931K	Buy	251,613 +448	+0.2%	+$1.81K	﹤0.01%	3926
2023 Q1	$1.16M	Buy	251,165 +19,969	+9%	+$104K	﹤0.01%	3873
2022 Q4	$1.14M	Buy	231,196 +152	+0.1%	+$935	﹤0.01%	3862
2022 Q3	$1.47M	Buy	231,044 +6,651	+3%	+$52K	﹤0.01%	3866
2022 Q2	$1.56M	Hold	224,393	–	–	﹤0.01%	3922
2022 Q1	$2.06M	Buy	224,393 +40,462	+22%	+$345K	﹤0.01%	3947
2021 Q4	$1.97M	Buy	183,931 +18,841	+11%	+$280K	﹤0.01%	4042
2021 Q3	$2.7M	Buy	165,090 +912	+0.6%	+$16.8K	﹤0.01%	3960
2021 Q2	$3.81M	Buy	164,178 +117,089	+249%	+$2.51M	﹤0.01%	3731
2021 Q1	$1.06M	Buy	+47,089	New	+$832K	﹤0.01%	3996
2020 Q2	–	Sell	-22,362	Closed	-$20K	–	4083
2020 Q1	$20K	Hold	22,362	–	–	﹤0.01%	4047
2019 Q4	$34K	Hold	22,362	–	–	﹤0.01%	4064
2019 Q3	$45K	Hold	22,362	–	–	﹤0.01%	4090
2019 Q2	$45K	Hold	22,362	–	–	﹤0.01%	4117
2019 Q1	$46K	Buy	22,362 +237	+1%	+$469	﹤0.01%	4066
2018 Q4	$42K	Hold	22,125	–	–	﹤0.01%	4084
2018 Q3	$62K	Hold	22,125	–	–	﹤0.01%	4109
2018 Q2	$52K	Hold	22,125	–	–	﹤0.01%	4095
2018 Q1	$39K	Buy	22,125 +6,061	+38%	+$12.3K	﹤0.01%	4075
2017 Q4	$50K	Hold	16,064	–	–	﹤0.01%	4030
2017 Q3	$24K	Hold	16,064	–	–	﹤0.01%	4055
2017 Q2	$30K	Hold	16,064	–	–	﹤0.01%	4049
2017 Q1	$34K	Hold	16,064	–	–	﹤0.01%	4046
2016 Q4	$37K	Hold	16,064	–	–	﹤0.01%	4050
2016 Q3	$35K	Hold	16,064	–	–	﹤0.01%	4052
2016 Q2	$33K	Hold	16,064	–	–	﹤0.01%	4097
2016 Q1	$34K	Hold	16,064	–	–	﹤0.01%	4104
2015 Q4	$31K	Hold	16,064	–	–	﹤0.01%	4160
2015 Q3	$37K	Sell	16,064 -241	-1%	-$585	﹤0.01%	4156
2015 Q2	$38K	Buy	16,305 +3,992	+32%	+$10.1K	﹤0.01%	4170
2015 Q1	$30K	Hold	12,313	–	–	﹤0.01%	4136
2014 Q4	$22K	Sell	12,313 -3,800	-24%	-$6.52K	﹤0.01%	4033
2014 Q3	$33K	Sell	16,113 -200	-1%	-$515	﹤0.01%	4000
2014 Q2	$52K	Buy	+16,313	New	+$66.7K	﹤0.01%	3952

Other funds holding KOSS

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

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 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

JIR

James Investment Research Alpha, Ohio $891M AUM 30.4% 1-Year Est. Return

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

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

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

Vanguard Group's KOSS Position: Q4 2025 in Review

Vanguard Group reduced its Koss Corp (KOSS) stake by 9.2% in Q4 2025, selling an estimated $109K and leaving 222,991 shares worth $923K. The position accounts for ﹤0.01% of the portfolio, ranked #3792.

Vanguard Group first reported a position in KOSS in Q2 2014 and has held it in 44 quarters since. The position peaked at $3.81M in Q2 2021. 22 funds tracked by Wall St. Rank hold KOSS as of Q4 2025.

Vanguard Group held 222,991 shares of Koss Corp worth $923K as of Q4 2025.
Vanguard Group sold 22,719 Koss Corp shares in Q4 2025, an estimated $109K.
Koss Corp made up ﹤0.01% of Vanguard Group's portfolio in Q4 2025, its #3792 holding.
Vanguard Group first reported a position in Koss Corp in Q2 2014 and has held it in 44 quarters since.
Vanguard Group's Koss Corp position peaked at $3.81M in Q2 2021.
22 funds tracked by Wall St. Rank held Koss Corp as of Q4 2025.

Based on Vanguard Group's 13F filing for Q4 2025, filed 29 Jan 2026.