KOSS CORP

Ticker: KOSS CUSIP: 500692108 Class: COM

VANGUARD GROUP INC's Holding History (CIK: 0000102909)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 222,991 Value ($000) $923 Avg Close $4.80 Range $4.12 - $5.70

Q3 2025

Shares 245,710 Value ($000) $1,248 Avg Close $5.66 Range $5.01 - $8.59

Q2 2025

Shares 246,512 Value ($000) $1,257 Avg Close $5.05 Range $4.00 - $6.73

Q1 2025

Shares 252,749 Value ($000) $1,193 Avg Close $6.03 Range $4.64 - $8.10

Q4 2024

Shares 250,941 Value ($000) $1,852 Avg Close $7.32 Range $6.68 - $8.58

Q3 2024

Shares 250,941 Value ($000) $1,854 Avg Close $8.15 Range $4.31 - $18.73

Q2 2024

Shares 262,506 Value ($000) $1,168 Avg Close $3.65 Range $2.27 - $6.95

Q1 2024

Shares 262,506 Value ($000) $675 Avg Close $2.78 Range $2.45 - $3.50

Q4 2023

Shares 262,506 Value ($000) $879 Avg Close $3.04 Range $2.62 - $3.92

Q3 2023

Shares 259,021 Value ($000) $767 Avg Close $3.65 Range $2.82 - $4.66

Q2 2023

Shares 251,613 Value ($000) $931 Avg Close $4.04 Range $3.45 - $4.80

Q1 2023

Shares 251,165 Value ($000) $1,160 Avg Close $5.22 Range $4.34 - $6.75

Q4 2022

Shares 231,196 Value ($000) $1,144 Avg Close $6.15 Range $4.44 - $7.20

Q3 2022

Shares 231,044 Value ($000) $1,467 Avg Close $7.81 Range $5.92 - $12.86

Q2 2022

Shares 224,393 Value ($000) $1,559 Avg Close $6.93 Range $5.00 - $9.52

Q1 2022

Shares 224,393 Value ($000) $2,056 Avg Close $8.52 Range $5.89 - $13.26

Q4 2021

Shares 183,931 Value ($000) $1,965 Avg Close $14.85 Range $10.66 - $22.92

Q3 2021

Shares 165,090 Value ($000) $2,699 Avg Close $18.44 Range $15.82 - $23.44

Q2 2021

Shares 164,178 Value ($000) $3,812 Avg Close $21.45 Range $15.57 - $43.92

Q1 2021

Shares 47,089 Value ($000) $1,059 Avg Close $17.67 Range $2.82 - $127.45

Q1 2020

Shares 22,362 Value ($000) $20 Avg Close $1.30 Range $0.80 - $1.68

Q4 2019

Shares 22,362 Value ($000) $34 Avg Close $1.71 Range $1.30 - $2.07

Q3 2019

Shares 22,362 Value ($000) $45 Avg Close $1.98 Range $1.73 - $2.90

Q2 2019

Shares 22,362 Value ($000) $45 Avg Close $2.07 Range $1.93 - $2.33

Q1 2019

Shares 22,362 Value ($000) $46 Avg Close $1.98 Range $1.79 - $2.28

Q4 2018

Shares 22,125 Value ($000) $42 Avg Close $2.31 Range $1.83 - $3.19

Q3 2018

Shares 22,125 Value ($000) $62 Avg Close $2.90 Range $2.27 - $4.69

Q2 2018

Shares 22,125 Value ($000) $52 Avg Close $2.11 Range $1.70 - $3.00

Q1 2018

Shares 22,125 Value ($000) $39 Avg Close $2.03 Range $1.75 - $2.52

Q4 2017

Shares 16,064 Value ($000) $50 Avg Close $1.61 Range $1.40 - $3.58

Q3 2017

Shares 16,064 Value ($000) $24 Avg Close $1.66 Range $1.40 - $2.07

Q2 2017

Shares 16,064 Value ($000) $30 Avg Close $1.95 Range $1.59 - $2.29

Q1 2017

Shares 16,064 Value ($000) $34 Avg Close $2.29 Range $2.01 - $2.76

Q4 2016

Shares 16,064 Value ($000) $37 Avg Close $2.46 Range $2.08 - $3.69

Q3 2016

Shares 16,064 Value ($000) $35 Avg Close $2.07 Range $1.96 - $2.60

Q2 2016

Shares 16,064 Value ($000) $33 Avg Close $2.10 Range $1.93 - $2.45

Q1 2016

Shares 16,064 Value ($000) $34 Avg Close $2.02 Range $1.51 - $2.35

Q4 2015

Shares 16,064 Value ($000) $31 Avg Close $2.13 Range $1.91 - $2.96

Q3 2015

Shares 16,064 Value ($000) $37 Avg Close $2.42 Range $2.14 - $2.61

Q2 2015

Shares 16,305 Value ($000) $38 Avg Close $2.52 Range $2.21 - $3.50

Q1 2015

Shares 12,313 Value ($000) $30 Avg Close $2.17 Range $1.80 - $2.90

Q4 2014

Shares 12,313 Value ($000) $22 Avg Close $1.72 Range $1.26 - $2.15

Q3 2014

Shares 16,113 Value ($000) $33 Avg Close $2.59 Range $1.85 - $3.45

Q2 2014

Shares 16,313 Value ($000) $52 Avg Close $4.11 Range $2.86 - $5.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	222,991	$923	$4.80	$4.12 - $5.70
Q3 2025	245,710	$1,248	$5.66	$5.01 - $8.59
Q2 2025	246,512	$1,257	$5.05	$4.00 - $6.73
Q1 2025	252,749	$1,193	$6.03	$4.64 - $8.10
Q4 2024	250,941	$1,852	$7.32	$6.68 - $8.58
Q3 2024	250,941	$1,854	$8.15	$4.31 - $18.73
Q2 2024	262,506	$1,168	$3.65	$2.27 - $6.95
Q1 2024	262,506	$675	$2.78	$2.45 - $3.50
Q4 2023	262,506	$879	$3.04	$2.62 - $3.92
Q3 2023	259,021	$767	$3.65	$2.82 - $4.66
Q2 2023	251,613	$931	$4.04	$3.45 - $4.80
Q1 2023	251,165	$1,160	$5.22	$4.34 - $6.75
Q4 2022	231,196	$1,144	$6.15	$4.44 - $7.20
Q3 2022	231,044	$1,467	$7.81	$5.92 - $12.86
Q2 2022	224,393	$1,559	$6.93	$5.00 - $9.52
Q1 2022	224,393	$2,056	$8.52	$5.89 - $13.26
Q4 2021	183,931	$1,965	$14.85	$10.66 - $22.92
Q3 2021	165,090	$2,699	$18.44	$15.82 - $23.44
Q2 2021	164,178	$3,812	$21.45	$15.57 - $43.92
Q1 2021	47,089	$1,059	$17.67	$2.82 - $127.45
Q1 2020	22,362	$20	$1.30	$0.80 - $1.68
Q4 2019	22,362	$34	$1.71	$1.30 - $2.07
Q3 2019	22,362	$45	$1.98	$1.73 - $2.90
Q2 2019	22,362	$45	$2.07	$1.93 - $2.33
Q1 2019	22,362	$46	$1.98	$1.79 - $2.28
Q4 2018	22,125	$42	$2.31	$1.83 - $3.19
Q3 2018	22,125	$62	$2.90	$2.27 - $4.69
Q2 2018	22,125	$52	$2.11	$1.70 - $3.00
Q1 2018	22,125	$39	$2.03	$1.75 - $2.52
Q4 2017	16,064	$50	$1.61	$1.40 - $3.58
Q3 2017	16,064	$24	$1.66	$1.40 - $2.07
Q2 2017	16,064	$30	$1.95	$1.59 - $2.29
Q1 2017	16,064	$34	$2.29	$2.01 - $2.76
Q4 2016	16,064	$37	$2.46	$2.08 - $3.69
Q3 2016	16,064	$35	$2.07	$1.96 - $2.60
Q2 2016	16,064	$33	$2.10	$1.93 - $2.45
Q1 2016	16,064	$34	$2.02	$1.51 - $2.35
Q4 2015	16,064	$31	$2.13	$1.91 - $2.96
Q3 2015	16,064	$37	$2.42	$2.14 - $2.61
Q2 2015	16,305	$38	$2.52	$2.21 - $3.50
Q1 2015	12,313	$30	$2.17	$1.80 - $2.90
Q4 2014	12,313	$22	$1.72	$1.26 - $2.15
Q3 2014	16,113	$33	$2.59	$1.85 - $3.45
Q2 2014	16,313	$52	$4.11	$2.86 - $5.15