JY
KOSS icon

Jeff Yass’s Koss Corp KOSS Stock Holding History

Jeff Yass’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 		– Sell
-14,558
Closed -$74K – 13026
2025
Q3 		$74K Buy
+14,558
New +$82.4K ﹤0.01% 11718
2025
Q1 		– Sell
-13,919
Closed -$103K – 13015
2024
Q4 		$103K Buy
+13,919
New +$102K ﹤0.01% 11322
2019
Q1 		– Sell
-11,277
Closed -$21K – 9379
2018
Q4 		$21K Sell
11,277
-10,057
-47% -$23.2K ﹤0.01% 8671
2018
Q3 		$59K Buy
+21,334
New +$61.8K ﹤0.01% 8795
2018
Q1 		– Sell
-37,372
Closed -$115K – 9776
2017
Q4 		$115K Buy
+37,372
New +$60.2K ﹤0.01% 8629

Other funds holding KOSS

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return
JIR
James Investment Research Alpha, Ohio $984M AUM 36.03% 1-Year Est. Return
NA
NewEdge Advisors New Orleans, Louisiana $33.6B AUM 31.03% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Jeff Yass's KOSS Position: Q4 2025 in Review

Jeff Yass sold out of Koss Corp (KOSS) in Q4 2025, closing a stake of 14,558 shares — an estimated $74K sold.

Jeff Yass first reported a position in KOSS in Q4 2017 and held it in 5 quarters. The position peaked at $115K in Q4 2017. 22 funds tracked by Wall St. Rank hold KOSS as of Q4 2025.

  • Jeff Yass reported no remaining Koss Corp position as of Q4 2025 after selling out during the quarter.
  • Jeff Yass sold 14,558 Koss Corp shares in Q4 2025, an estimated $74K.
  • Jeff Yass first reported a position in Koss Corp in Q4 2017 and held it in 5 quarters.
  • Jeff Yass's Koss Corp position peaked at $115K in Q4 2017.
  • 22 funds tracked by Wall St. Rank held Koss Corp as of Q4 2025.

Based on Susquehanna International Group's 13F filing for Q4 2025, filed 17 Feb 2026.