Twin Tree Management
BIRK icon

Twin Tree Management’s Birkenstock BIRK Stock Holding History

Twin Tree Management’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
2026
Q2 		$646K Buy
+15,007
New +$606K 0.01% 964
2026
Q1 		– Sell
-8,122
Closed -$317K – 1296
2025
Q4 		$332K Buy
8,122
+3,923
+93% +$166K ﹤0.01% 1190
2025
Q3 		$190K Buy
+4,199
New +$205K ﹤0.01% 1344

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T. Rowe Price Investment Management
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Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Twin Tree Management's BIRK Position: Q2 2026 in Review

Twin Tree Management opened a new position in Birkenstock (BIRK) in Q2 2026: 15,007 shares worth $646K. The stake represents 0.01% of the portfolio and ranks #964 among its holdings. This is a return to the name: Twin Tree Management previously reported a position in BIRK as recently as Q4 2025.

Twin Tree Management first reported a position in BIRK in Q3 2025 and has held it in 3 quarters since. 235 funds tracked by Wall St. Rank hold BIRK as of Q2 2026.

  • Twin Tree Management held 15,007 shares of Birkenstock worth $646K as of Q2 2026.
  • Birkenstock was a new Twin Tree Management position in Q2 2026.
  • Birkenstock made up 0.01% of Twin Tree Management's portfolio in Q2 2026, its #964 holding.
  • Twin Tree Management first reported a position in Birkenstock in Q3 2025 and has held it in 3 quarters since.
  • 235 funds tracked by Wall St. Rank held Birkenstock as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.