Skip to main content

CITADEL ADVISORS LLC

Position in FSLY — Fastly, Inc.

CIK 1423053 MIAMI, FL

Position in FSLY

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$10,947,791
-$2,428,933 QoQ
Shares Held
596,285
+29.5% QoQ
Ownership
0.374%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#43
of 280 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in FSLY Over Time

Shares Held

Position Value (USD)

Derivatives in FSLY

reported options exposure · as of Jun 30, 2026
CallValue
$25,654,428
CallShares
1,397,300
PutValue
$39,989,916
PutShares
2,178,100

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Software - Application

Technology · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $5,175,016,677 across 166 Software - Application names. FSLY ranks #51 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in FSLY

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $25,654,428 1,397,300
2026-06-30 $39,989,916 2,178,100
2026-06-30 $10,947,791 596,285
2026-03-31 $13,376,724 460,314
2026-03-31 $72,074,612 2,480,200
2026-03-31 $24,680,658 849,300
2025-12-31 $20,488,572 2,012,630
2025-12-31 $2,025,820 199,000
2025-12-31 $3,268,798 321,100
2025-09-30 $5,719,025 668,892
2025-09-30 $1,044,810 122,200
2025-09-30 $3,182,310 372,200
2025-06-30 $5,849,414 828,529
2025-06-30 $1,230,558 174,300
2025-06-30 $3,066,864 434,400
2025-03-31 $1,551,483 245,100
2025-03-31 $4,520,253 714,100
2025-03-31 $7,203,456 1,137,987
2024-12-31 $3,393,680 359,500
2024-12-31 $3,642,896 385,900
2024-12-31 $6,931,158 734,233
2024-09-30 $5,922,011 782,300
2024-09-30 $2,527,623 333,900
2024-09-30 $5,954,879 786,642
2024-06-30 $6,109,730 829,000
2024-06-30 $3,145,516 426,800
2024-06-30 $3,776,284 512,386
2024-03-31 $19,886,901 1,533,300
2024-03-31 $5,925,318 456,848
2024-03-31 $11,813,076 910,800
2023-12-31 $3,905,141 219,390
2023-12-31 $5,240,320 294,400
2023-12-31 $13,460,360 756,200
2023-09-30 $11,164,608 582,400
2023-09-30 $5,750,443 299,971
2023-09-30 $5,540,130 289,000
2023-06-30 $5,393,340 342,000
2023-06-30 $7,117,001 451,300
2023-06-30 $33,916,159 2,150,676
2023-03-31 $9,348,864 526,400
2023-03-31 $8,134,080 458,000
2023-03-31 $31,478,285 1,772,426
2022-12-31 $2,144,142 261,800
2022-12-31 $12,280,715 1,499,477
2022-12-31 $5,002,452 610,800
2022-09-30 $2,202,064 240,400
2022-09-30 $17,456,541 1,905,736
2022-09-30 $6,659,320 727,000
2022-06-30 $11,363,868 978,800
2022-06-30 $4,923,801 424,100