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	$3.55M	Buy	82,400 +69,400	+534%	+$2.8M	0.07%	382
2026 Q1	$466K	Sell	13,000 -13,100	-50%	-$511K	0.01%	947
2025 Q4	$1.07M	Buy	26,100 +5,100	+24%	+$216K	0.01%	999
2025 Q3	$950K	Buy	+21,000	New	+$1.03M	﹤0.01%	1189

Other funds holding BIRK

CMC

Catterton Management Company Greenwich, Connecticut $4.33B AUM 14.37% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

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.