Citadel Advisors
FSLY icon

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
Q2 		$10.9M Buy
596,285
+135,971
+30% +$2.95M ﹤0.01% 3436
2026
Q1 		$13.4M Sell
460,314
-1,552,316
-77% -$25.5M ﹤0.01% 2840
2025
Q4 		$20.5M Buy
2,012,630
+1,343,738
+201% +$13.2M ﹤0.01% 2307
2025
Q3 		$5.72M Sell
668,892
-159,637
-19% -$1.18M ﹤0.01% 4119
2025
Q2 		$5.85M Sell
828,529
-309,458
-27% -$2.07M ﹤0.01% 3844
2025
Q1 		$7.2M Buy
1,137,987
+403,754
+55% +$3.37M ﹤0.01% 3325
2024
Q4 		$6.93M Sell
734,233
-52,409
-7% -$435K ﹤0.01% 3459
2024
Q3 		$5.95M Buy
786,642
+274,256
+54% +$1.9M ﹤0.01% 3669
2024
Q2 		$3.78M Buy
512,386
+55,538
+12% +$544K ﹤0.01% 4192
2024
Q1 		$5.93M Buy
456,848
+237,458
+108% +$4.01M ﹤0.01% 3676
2023
Q4 		$3.91M Sell
219,390
-80,581
-27% -$1.36M ﹤0.01% 4163
2023
Q3 		$5.75M Sell
299,971
-1,850,705
-86% -$36.1M ﹤0.01% 3436
2023
Q2 		$33.9M Buy
2,150,676
+378,250
+21% +$5.79M 0.01% 1377
2023
Q1 		$31.5M Buy
1,772,426
+272,949
+18% +$3.47M 0.01% 1491
2022
Q4 		$12.3M Sell
1,499,477
-406,259
-21% -$3.56M ﹤0.01% 2538
2022
Q3 		$17.5M Sell
1,905,736
-176,249
-8% -$1.88M ﹤0.01% 2028
2022
Q2 		$24.2M Sell
2,081,985
-187,486
-8% -$2.64M 0.01% 1653
2022
Q1 		$39.4M Buy
2,269,471
+780,362
+52% +$18.2M 0.01% 1304
2021
Q4 		$52.8M Buy
1,489,109
+1,476,319
+11,543% +$64.2M 0.01% 1129
2021
Q3 		$517K Sell
12,790
-1,722
-12% -$79.5K ﹤0.01% 9778
2021
Q2 		$865K Sell
14,512
-697,190
-98% -$39.6M ﹤0.01% 8730
2021
Q1 		$47.9M Buy
711,702
+524,731
+281% +$45.1M 0.01% 1081
2020
Q4 		$16.3M Buy
186,971
+47,096
+34% +$4.15M ﹤0.01% 2031
2020
Q3 		$13.1M Sell
139,875
-51,369
-27% -$4.46M ﹤0.01% 1984
2020
Q2 		$16.3M Buy
191,244
+142,170
+290% +$5.6M 0.01% 1687
2020
Q1 		$931K Sell
49,074
-349,093
-88% -$7.21M ﹤0.01% 5471
2019
Q4 		$7.99M Buy
398,167
+374,962
+1,616% +$7.91M ﹤0.01% 2470
2019
Q3 		$557K Sell
23,205
-160,941
-87% -$3.79M ﹤0.01% 6561
2019
Q2 		$3.73M Buy
+184,146
New +$3.79M ﹤0.01% 3516

Other funds holding FSLY

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
PCM
Penserra Capital Management Orinda, California $13B AUM 71.84% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return

Citadel Advisors's FSLY Position: Q2 2026 in Review

Citadel Advisors increased its Fastly Inc (FSLY) stake by 30% in Q2 2026, buying an estimated $2.95M and bringing the position to 596,285 shares worth $10.9M. The position accounts for ﹤0.01% of the portfolio, ranked #3436.

Citadel Advisors first reported a position in FSLY in Q2 2019 and has held it in 29 quarters since. The position peaked at $52.8M in Q4 2021. 283 funds tracked by Wall St. Rank hold FSLY as of Q2 2026.

  • Citadel Advisors held 596,285 shares of Fastly Inc worth $10.9M as of Q2 2026.
  • Citadel Advisors bought 135,971 Fastly Inc shares in Q2 2026, an estimated $2.95M.
  • Fastly Inc made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #3436 holding.
  • Citadel Advisors first reported a position in Fastly Inc in Q2 2019 and has held it in 29 quarters since.
  • Citadel Advisors's Fastly Inc position peaked at $52.8M in Q4 2021.
  • 283 funds tracked by Wall St. Rank held Fastly Inc as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.