PDT Partners’s Fastly Inc FSLY Stock Holding History

PDT Partners’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
2026 Q1	$8.43M	Sell	290,072 -543,343	-65%	-$8.92M	0.5%	52
2025 Q4	$8.48M	Hold	833,415	–	–	0.55%	38
2025 Q3	$7.13M	Hold	833,415	–	–	0.45%	52
2025 Q2	$5.88M	Buy	833,415 +213,790	+35%	+$1.43M	0.33%	76
2025 Q1	$3.92M	Buy	619,625 +364,682	+143%	+$3.05M	0.28%	110
2024 Q4	$2.41M	Buy	254,943 +181,519	+247%	+$1.51M	0.21%	163
2024 Q3	$556K	Sell	73,424 -95,520	-57%	-$663K	0.05%	478
2024 Q2	$1.25M	Buy	+168,944	New	+$1.65M	0.12%	294
2022 Q2	–	Sell	-95,259	Closed	-$1.66M	–	1024
2022 Q1	$1.66M	Sell	95,259 -19,244	-17%	-$449K	0.14%	219
2021 Q4	$4.06M	Buy	114,503 +90,320	+373%	+$3.93M	0.31%	88
2021 Q3	$978K	Buy	+24,183	New	+$1.12M	0.07%	346

Other funds holding FSLY

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

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

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

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

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

PDT Partners's FSLY Position: Q1 2026 in Review

PDT Partners reduced its Fastly Inc (FSLY) stake by 65% in Q1 2026, selling an estimated $8.92M and leaving 290,072 shares worth $8.43M. The position accounts for 0.5% of the portfolio, ranked #52.

PDT Partners first reported a position in FSLY in Q3 2021 and has held it in 11 quarters since. The position peaked at $8.48M in Q4 2025. 339 funds tracked by Wall St. Rank hold FSLY as of Q1 2026.

PDT Partners held 290,072 shares of Fastly Inc worth $8.43M as of Q1 2026.
PDT Partners sold 543,343 Fastly Inc shares in Q1 2026, an estimated $8.92M.
Fastly Inc made up 0.5% of PDT Partners's portfolio in Q1 2026, its #52 holding.
PDT Partners first reported a position in Fastly Inc in Q3 2021 and has held it in 11 quarters since.
PDT Partners's Fastly Inc position peaked at $8.48M in Q4 2025.
339 funds tracked by Wall St. Rank held Fastly Inc as of Q1 2026.

Based on PDT Partners's 13F filing for Q1 2026, filed 15 May 2026.