Parallax Volatility Advisers
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Parallax Volatility Advisers’s Birkenstock BIRK Stock Holding History

Parallax Volatility Advisers’s Portfolio BIRK Stock Details BIRK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-200,000
Closed -$9.84M – 1604
2025
Q2 		$9.84M Buy
+200,000
New +$10.3M 0.02% 435
2024
Q3 		– Sell
-100
Closed -$5.44K – 2024
2024
Q2 		$5.44K Buy
+100
New +$4.96K ﹤0.01% 1891

Other funds holding BIRK

CMC
Catterton Management Company Greenwich, Connecticut $4.33B AUM 14.37% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
AM
AGF Management Toronto, Ontario, Canada $22.3B AUM 46.42% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Parallax Volatility Advisers's BIRK Position: Q3 2025 in Review

Parallax Volatility Advisers sold out of Birkenstock (BIRK) in Q3 2025, closing a stake of 9,174 shares — an estimated $451K sold.

Parallax Volatility Advisers first reported a position in BIRK in Q2 2024 and held it in 2 quarters. The position peaked at $451K in Q2 2025. 257 funds tracked by Wall St. Rank hold BIRK as of Q3 2025.

  • Parallax Volatility Advisers reported no remaining Birkenstock position as of Q3 2025 after selling out during the quarter.
  • Parallax Volatility Advisers sold 9,174 Birkenstock shares in Q3 2025, an estimated $451K.
  • Parallax Volatility Advisers first reported a position in Birkenstock in Q2 2024 and held it in 2 quarters.
  • Parallax Volatility Advisers's Birkenstock position peaked at $451K in Q2 2025.
  • 257 funds tracked by Wall St. Rank held Birkenstock as of Q3 2025.

Based on Parallax Volatility Advisers's 13F filing for Q3 2025, filed 14 Nov 2025.