William Blair & Company’s Flex FLEX Stock Holding History

William Blair & Company’s Portfolio FLEX Stock Details FLEX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.13M	Sell	17,265 -5,700	-25%	-$365K	﹤0.01%	902
2025 Q4	$1.39M	Sell	22,965 -2,291	-9%	-$142K	﹤0.01%	850
2025 Q3	$1.46M	Buy	25,256 +2,878	+13%	+$153K	﹤0.01%	821
2025 Q2	$1.12M	Buy	22,378 +9,435	+73%	+$368K	﹤0.01%	863
2025 Q1	$428K	Sell	12,943 -625	-5%	-$24.5K	﹤0.01%	1130
2024 Q4	$521K	Buy	13,568 +589	+5%	+$21.8K	﹤0.01%	1085
2024 Q3	$434K	Buy	12,979 +949	+8%	+$29.2K	﹤0.01%	1161
2024 Q2	$355K	Sell	12,030 -348	-3%	-$10.4K	﹤0.01%	1209
2024 Q1	$354K	Sell	12,378 -2,875	-19%	-$75.4K	﹤0.01%	1195
2023 Q4	$350K	Buy	+15,253	New	+$305K	﹤0.01%	1181

Other funds holding FLEX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Boston Partners Boston, Massachusetts $95.5B AUM 28.4% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

William Blair & Company's FLEX Position: Q1 2026 in Review

William Blair & Company reduced its Flex (FLEX) stake by 25% in Q1 2026, selling an estimated $365K and leaving 17,265 shares worth $1.13M. The position accounts for ﹤0.01% of the portfolio, ranked #902.

William Blair & Company first reported a position in FLEX in Q4 2023 and has held it in 10 quarters since. The position peaked at $1.46M in Q3 2025. 784 funds tracked by Wall St. Rank hold FLEX as of Q1 2026.

William Blair & Company held 17,265 shares of Flex worth $1.13M as of Q1 2026.
William Blair & Company sold 5,700 Flex shares in Q1 2026, an estimated $365K.
Flex made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #902 holding.
William Blair & Company first reported a position in Flex in Q4 2023 and has held it in 10 quarters since.
William Blair & Company's Flex position peaked at $1.46M in Q3 2025.
784 funds tracked by Wall St. Rank held Flex as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.