Castleark Management’s Flex FLEX Stock Holding History

Castleark Management’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 Q2	$1.71M	Hold	10,580	–	–	0.05%	217
2026 Q1	$693K	Buy	10,580 +4,870	+85%	+$311K	0.02%	239
2025 Q4	$345K	Buy	5,710 +3,000	+111%	+$185K	0.01%	261
2025 Q3	$157K	Hold	2,710	–	–	﹤0.01%	269
2025 Q2	$135K	Buy	+2,710	New	+$106K	﹤0.01%	260
2020 Q2	–	Sell	-610,234	Closed	-$3.85M	–	358
2020 Q1	$3.85M	Buy	+610,234	New	+$5.28M	0.23%	120

Other funds holding FLEX

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

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

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

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

Jupiter Topco New York $245B AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

Castleark Management's FLEX Position: Q2 2026 in Review

Castleark Management held its Flex (FLEX) position steady in Q2 2026 at 10,580 shares worth $1.71M. The position accounts for 0.05% of the portfolio, ranked #217.

Castleark Management first reported a position in FLEX in Q1 2020 and has held it in 6 quarters since. The position peaked at $3.85M in Q1 2020. 1,117 funds tracked by Wall St. Rank hold FLEX as of Q2 2026.

Castleark Management held 10,580 shares of Flex worth $1.71M as of Q2 2026.
Castleark Management left its Flex share count unchanged in Q2 2026.
Flex made up 0.05% of Castleark Management's portfolio in Q2 2026, its #217 holding.
Castleark Management first reported a position in Flex in Q1 2020 and has held it in 6 quarters since.
Castleark Management's Flex position peaked at $3.85M in Q1 2020.
1,117 funds tracked by Wall St. Rank held Flex as of Q2 2026.

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