Simplex Trading’s Birkenstock BIRK Stock Holding History

Simplex Trading’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	$521K	Buy	12,104 +3,194	+36%	+$129K	﹤0.01%	3555
2026 Q1	$319K	Sell	8,910 -39,536	-82%	-$1.54M	﹤0.01%	3760
2025 Q4	$1.98M	Buy	48,446 +19,275	+66%	+$816K	﹤0.01%	1988
2025 Q3	$1.32M	Sell	29,171 -636	-2%	-$31.1K	﹤0.01%	2762
2025 Q2	$1.47M	Buy	29,807 +7,277	+32%	+$374K	﹤0.01%	2395
2025 Q1	$1.03M	Buy	22,530 +12,396	+122%	+$653K	﹤0.01%	2678
2024 Q4	$574K	Buy	+10,134	New	+$514K	﹤0.01%	3379
2024 Q3	–	Sell	-6,088	Closed	-$331K	–	8491
2024 Q2	$331K	Buy	6,088 +4,389	+258%	+$218K	﹤0.01%	4112
2024 Q1	$80K	Buy	+1,699	New	+$81.1K	﹤0.01%	5809

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

Simplex Trading's BIRK Position: Q2 2026 in Review

Simplex Trading increased its Birkenstock (BIRK) stake by 36% in Q2 2026, buying an estimated $129K and bringing the position to 12,104 shares worth $521K. The position accounts for ﹤0.01% of the portfolio, ranked #3555.

Simplex Trading first reported a position in BIRK in Q1 2024 and has held it in 9 quarters since. The position peaked at $1.98M in Q4 2025. 235 funds tracked by Wall St. Rank hold BIRK as of Q2 2026.

Simplex Trading held 12,104 shares of Birkenstock worth $521K as of Q2 2026.
Simplex Trading bought 3,194 Birkenstock shares in Q2 2026, an estimated $129K.
Birkenstock made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #3555 holding.
Simplex Trading first reported a position in Birkenstock in Q1 2024 and has held it in 9 quarters since.
Simplex Trading's Birkenstock position peaked at $1.98M in Q4 2025.
235 funds tracked by Wall St. Rank held Birkenstock as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.