Cubist Systematic Strategies’s Fastly Inc FSLY Stock Holding History

Cubist Systematic Strategies’s Portfolio FSLY Stock Details FSLY Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2024 Q4	–	Sell	-17,900	Closed	-$136K	–	3175
2024 Q3	$136K	Sell	17,900 -6,900	-28%	-$47.9K	﹤0.01%	2651
2024 Q2	$183K	Buy	+24,800	New	+$243K	﹤0.01%	2528
2023 Q4	–	Sell	-84,500	Closed	-$1.62M	–	3750
2023 Q3	$1.62M	Buy	84,500 +6,900	+9%	+$135K	0.01%	1516
2023 Q2	$1.22M	Buy	77,600 +5,800	+8%	+$88.8K	0.01%	1839
2023 Q1	$1.28M	Buy	+71,800	New	+$912K	0.01%	1991

Other funds holding FSLY

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

PCM

Penserra Capital Management Orinda, California $8.52B AUM 37.76% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

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

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

First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

Cubist Systematic Strategies's FSLY Position: Q3 2025 in Review

Cubist Systematic Strategies reduced its Fastly Inc (FSLY) stake by 57% in Q3 2025, selling an estimated $3.98M and leaving 411,801 shares worth $3.52M. The position accounts for 0.02% of the portfolio, ranked #1207.

Cubist Systematic Strategies first reported a position in FSLY in Q2 2019 and has held it in 19 quarters since. The position peaked at $12.5M in Q1 2022. 239 funds tracked by Wall St. Rank hold FSLY as of Q3 2025.

Cubist Systematic Strategies held 411,801 shares of Fastly Inc worth $3.52M as of Q3 2025.
Cubist Systematic Strategies sold 536,852 Fastly Inc shares in Q3 2025, an estimated $3.98M.
Fastly Inc made up 0.02% of Cubist Systematic Strategies's portfolio in Q3 2025, its #1207 holding.
Cubist Systematic Strategies first reported a position in Fastly Inc in Q2 2019 and has held it in 19 quarters since.
Cubist Systematic Strategies's Fastly Inc position peaked at $12.5M in Q1 2022.
239 funds tracked by Wall St. Rank held Fastly Inc as of Q3 2025.

Based on Cubist Systematic Strategies's 13F filing for Q3 2025, filed 14 Nov 2025.