Jane Street
FSLY icon

Jane Street’s Fastly Inc FSLY Stock Holding History

Jane Street’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
Q3 		$26.5M Buy
1,031,100
+267,500
+35% +$6.18M ﹤0.01% 1837
2026
Q2 		$14M Sell
763,600
-752,800
-50% -$16.4M ﹤0.01% 2465
2026
Q1 		$44.1M Buy
1,516,400
+1,485,000
+4,729% +$24.4M 0.01% 1148
2025
Q4 		$320K Buy
31,400
+3,400
+12% +$33.5K ﹤0.01% 8695
2025
Q3 		$239K Sell
28,000
-4,000
-13% -$29.6K ﹤0.01% 9336
2025
Q2 		$226K Sell
32,000
-28,000
-47% -$188K ﹤0.01% 8346
2025
Q1 		$380K Buy
60,000
+37,000
+161% +$309K ﹤0.01% 7391
2024
Q4 		$217K Buy
23,000
+12,600
+121% +$105K ﹤0.01% 8283
2024
Q3 		$78.7K Sell
10,400
-5,700
-35% -$39.6K ﹤0.01% 9073
2024
Q2 		$119K Sell
16,100
-43,100
-73% -$422K ﹤0.01% 8667
2024
Q1 		$768K Sell
59,200
-11,200
-16% -$189K ﹤0.01% 5896
2023
Q4 		$1.25M Sell
70,400
-1,300
-2% -$21.9K ﹤0.01% 5162
2023
Q3 		$1.37M Sell
71,700
-24,900
-26% -$486K ﹤0.01% 4674
2023
Q2 		$1.52M Buy
96,600
+82,300
+576% +$1.26M ﹤0.01% 4574
2023
Q1 		$254K Sell
14,300
-28,000
-66% -$356K ﹤0.01% 7460
2022
Q4 		$346K Sell
42,300
-41,100
-49% -$360K ﹤0.01% 6770
2022
Q3 		$764K Sell
83,400
-279,300
-77% -$2.97M ﹤0.01% 5918
2022
Q2 		$4.21M Sell
362,700
-164,500
-31% -$2.32M ﹤0.01% 2922
2022
Q1 		$9.16M Buy
527,200
+83,700
+19% +$1.95M ﹤0.01% 2107
2021
Q4 		$15.7M Sell
443,500
-103,100
-19% -$4.48M 0.01% 1398
2021
Q3 		$22.1M Sell
546,600
-300,200
-35% -$13.9M 0.01% 1069
2021
Q2 		$50.5M Sell
846,800
-156,800
-16% -$8.91M 0.02% 549
2021
Q1 		$67.5M Buy
1,003,600
+51,300
+5% +$4.41M 0.03% 387
2020
Q4 		$83.2M Buy
952,300
+403,200
+73% +$35.5M 0.04% 295
2020
Q3 		$51.4M Buy
549,100
+56,400
+11% +$4.89M 0.03% 380
2020
Q2 		$41.9M Buy
492,700
+461,300
+1,469% +$18.2M 0.03% 413
2020
Q1 		$596K Sell
31,400
-49,100
-61% -$1.01M ﹤0.01% 3435
2019
Q4 		$1.62M Buy
+80,500
New +$1.7M ﹤0.01% 2191

Other funds holding FSLY

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Capital World Investors
Capital World Investors Los Angeles, California $824B AUM 37.44% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 38.25% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $109B AUM 51.53% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Jane Street's FSLY Position: Q3 2026 in Review

Jane Street reduced its Fastly Inc (FSLY) stake by 92% in Q3 2026, selling an estimated $55.1M and leaving 215,107 shares worth $5.52M. The position accounts for ﹤0.01% of the portfolio, ranked #3596.

Jane Street first reported a position in FSLY in Q2 2019 and has held it in 29 quarters since. The position peaked at $73.8M in Q1 2026. 244 funds tracked by Wall St. Rank hold FSLY as of Q3 2026.

  • Jane Street held 215,107 shares of Fastly Inc worth $5.52M as of Q3 2026.
  • Jane Street sold 2,384,080 Fastly Inc shares in Q3 2026, an estimated $55.1M.
  • Fastly Inc made up ﹤0.01% of Jane Street's portfolio in Q3 2026, its #3596 holding.
  • Jane Street first reported a position in Fastly Inc in Q2 2019 and has held it in 29 quarters since.
  • Jane Street's Fastly Inc position peaked at $73.8M in Q1 2026.
  • 244 funds tracked by Wall St. Rank held Fastly Inc as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.