Citadel Advisors
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Citadel Advisors’s Fastly Inc FSLY Stock Holding History

Citadel Advisors’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 		$24.7M Buy
849,300
+650,300
+327% +$10.7M ﹤0.01% 2075
2025
Q4 		$2.03M Buy
199,000
+76,800
+63% +$757K ﹤0.01% 5878
2025
Q3 		$1.04M Sell
122,200
-52,100
-30% -$386K ﹤0.01% 7446
2025
Q2 		$1.23M Sell
174,300
-70,800
-29% -$475K ﹤0.01% 6640
2025
Q1 		$1.55M Sell
245,100
-140,800
-36% -$1.18M ﹤0.01% 6024
2024
Q4 		$3.64M Sell
385,900
-396,400
-51% -$3.29M ﹤0.01% 4501
2024
Q3 		$5.92M Sell
782,300
-46,700
-6% -$324K ﹤0.01% 3678
2024
Q2 		$6.11M Sell
829,000
-704,300
-46% -$6.89M ﹤0.01% 3437
2024
Q1 		$19.9M Buy
1,533,300
+777,100
+103% +$13.1M ﹤0.01% 2074
2023
Q4 		$13.5M Buy
756,200
+173,800
+30% +$2.93M ﹤0.01% 2467
2023
Q3 		$11.2M Buy
582,400
+240,400
+70% +$4.69M ﹤0.01% 2550
2023
Q2 		$5.39M Sell
342,000
-184,400
-35% -$2.82M ﹤0.01% 3538
2023
Q1 		$9.35M Sell
526,400
-84,400
-14% -$1.07M ﹤0.01% 2899
2022
Q4 		$5M Sell
610,800
-116,200
-16% -$1.02M ﹤0.01% 3864
2022
Q3 		$6.66M Sell
727,000
-251,800
-26% -$2.68M ﹤0.01% 3403
2022
Q2 		$11.4M Sell
978,800
-150,000
-13% -$2.12M ﹤0.01% 2521
2022
Q1 		$19.6M Sell
1,128,800
-32,700
-3% -$764K ﹤0.01% 2009
2021
Q4 		$41.2M Sell
1,161,500
-259,000
-18% -$11.3M 0.01% 1322
2021
Q3 		$57.4M Sell
1,420,500
-220,700
-13% -$10.2M 0.01% 1022
2021
Q2 		$97.8M Buy
1,641,200
+741,800
+82% +$42.2M 0.02% 687
2021
Q1 		$60.5M Sell
899,400
-157,100
-15% -$13.5M 0.01% 892
2020
Q4 		$92.3M Buy
1,056,500
+362,000
+52% +$31.9M 0.02% 599
2020
Q3 		$65.1M Buy
694,500
+160,700
+30% +$13.9M 0.02% 693
2020
Q2 		$45.4M Buy
533,800
+337,800
+172% +$13.3M 0.02% 859
2020
Q1 		$3.72M Buy
196,000
+63,000
+47% +$1.3M ﹤0.01% 3130
2019
Q4 		$2.67M Sell
133,000
-66,700
-33% -$1.41M ﹤0.01% 3965
2019
Q3 		$4.79M Buy
199,700
+165,900
+491% +$3.91M ﹤0.01% 3166
2019
Q2 		$685K Buy
+33,800
New +$696K ﹤0.01% 6309

Other funds holding FSLY

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
First Trust Advisors
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
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Citadel Advisors's FSLY Position: Q1 2026 in Review

Citadel Advisors reduced its Fastly Inc (FSLY) stake by 77% in Q1 2026, selling an estimated $25.5M and leaving 460,314 shares worth $13.4M. The position accounts for ﹤0.01% of the portfolio, ranked #2840.

Citadel Advisors first reported a position in FSLY in Q2 2019 and has held it in 28 quarters since. The position peaked at $52.8M in Q4 2021. 339 funds tracked by Wall St. Rank hold FSLY as of Q1 2026.

  • Citadel Advisors held 460,314 shares of Fastly Inc worth $13.4M as of Q1 2026.
  • Citadel Advisors sold 1,552,316 Fastly Inc shares in Q1 2026, an estimated $25.5M.
  • Fastly Inc made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #2840 holding.
  • Citadel Advisors first reported a position in Fastly Inc in Q2 2019 and has held it in 28 quarters since.
  • Citadel Advisors's Fastly Inc position peaked at $52.8M in Q4 2021.
  • 339 funds tracked by Wall St. Rank held Fastly Inc as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.