Dark Forest Capital Management’s Bio-Rad Laboratories Class A BIO Stock Holding History

Dark Forest Capital Management’s Portfolio BIO Stock Details BIO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$652K	Sell	2,219 -1,125	-34%	-$319K	0.04%	600
2026 Q1	$932K	Buy	+3,344	New	+$963K	0.08%	391
2025 Q4	–	Sell	-2,308	Closed	-$647K	–	987
2025 Q3	$647K	Sell	2,308 -2,287	-50%	-$622K	0.02%	862
2025 Q2	$1.11M	Buy	+4,595	New	+$1.09M	0.04%	702
2024 Q4	–	Sell	-655	Closed	-$219K	–	952
2024 Q3	$219K	Buy	+655	New	+$208K	0.03%	831
2023 Q2	–	Sell	-126	Closed	-$60.4K	–	1058
2023 Q1	$60.4K	Buy	126 +116	+1,160%	+$54.3K	0.01%	804
2022 Q4	$4.21K	Buy	+10	New	+$4.04K	﹤0.01%	889
2022 Q2	–	Sell	-33	Closed	-$18K	–	911
2022 Q1	$18K	Buy	33 +20	+154%	+$12.1K	﹤0.01%	807
2021 Q4	$10K	Buy	13 +9	+225%	+$6.74K	﹤0.01%	916
2021 Q3	$3K	Buy	+4	New	+$3K	﹤0.01%	1141

Other funds holding BIO

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Ariel Investments Chicago, Illinois $10B AUM 42.59% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

EARNEST Partners Atlanta, Georgia $27.7B AUM 52.44% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

Dark Forest Capital Management's BIO Position: Q2 2026 in Review

Dark Forest Capital Management reduced its Bio-Rad Laboratories Class A (BIO) stake by 34% in Q2 2026, selling an estimated $319K and leaving 2,219 shares worth $652K. The position accounts for 0.04% of the portfolio, ranked #600.

Dark Forest Capital Management first reported a position in BIO in Q3 2021 and has held it in 10 quarters since. The position peaked at $1.11M in Q2 2025. 398 funds tracked by Wall St. Rank hold BIO as of Q2 2026.

Dark Forest Capital Management held 2,219 shares of Bio-Rad Laboratories Class A worth $652K as of Q2 2026.
Dark Forest Capital Management sold 1,125 Bio-Rad Laboratories Class A shares in Q2 2026, an estimated $319K.
Bio-Rad Laboratories Class A made up 0.04% of Dark Forest Capital Management's portfolio in Q2 2026, its #600 holding.
Dark Forest Capital Management first reported a position in Bio-Rad Laboratories Class A in Q3 2021 and has held it in 10 quarters since.
Dark Forest Capital Management's Bio-Rad Laboratories Class A position peaked at $1.11M in Q2 2025.
398 funds tracked by Wall St. Rank held Bio-Rad Laboratories Class A as of Q2 2026.

Based on Dark Forest Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.