FSLYFastly, Inc.

$29.33+240% 1Y

Who owns FSLY

279 institutions reported holding FSLY for 2026Q2, together 97% of the company, fewer than the 331 a quarter earlier.

279

Institutions reporting a position · as of 2026Q2 · down from 331 the quarter before

Shares held by institutions
148.3M

Shares held by institutions · 97% of the company · long US equity positions only, as reported on Form 13F

Reported value
$2.73B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
39%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
29
New positions
57
Positions exited
109
Added to
91
Reduced
86
Top 10 holdersof the company
56%
Shares sold shortsettled Sep 15, 2026
21.6M
Short interestof shares outstanding
14%
Days to coverat the average daily volume
4.0
Change in the short positionsince the Aug 31, 2026 count
+6.7%
Institutional ownership by quarter, 2019Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2279148.3M$2.73B
2026Q1331137.8M$3.99B
2025Q4249115.3M$1.18B
2025Q3236105.2M$899M
2025Q2233100.1M$707M
2025Q122798.0M$620M
2024Q422692.7M$875M
2024Q321497.4M$747M
2024Q224190.9M$671M
2024Q125687.8M$1.14B
2023Q426292.9M$1.65B
2023Q324993.5M$1.79B
2023Q224285.4M$1.35B
2023Q125684.5M$1.50B
2022Q423079.9M$655M
2022Q324475.9M$696M
Largest reported holders, 2026Q2
HolderShares% of companyValue
VANGUARD GROUP INC17.4M11%$320M
BlackRock Inc.15.2M9.9%$279M
FMR LLC11.9M7.7%$218M
Capital World Investors8.2M5.4%$151M
FIRST TRUST ADVISORS LP7.7M5.0%$141M
D. E. Shaw & Co., INC.6.6M4.3%$121M
TWO SIGMA INVESTMENTS, LP6.1M3.9%$111M
Penserra Capital Management LLC4.6M3.0%$85M
Legal & General Group Plc4.4M2.8%$80M
GEODE CAPITAL MANAGEMENT LLC3.9M2.5%$72M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202621.6M14%4.0
Aug 31, 202620.2M13%4.4
Aug 14, 202621.4M14%2.6
Jul 31, 202622.6M15%4.5
Jul 15, 202625.5M17%6.4
Jun 30, 202625.4M17%4.4
Jun 15, 202618.7M12%2.4
May 29, 202619.7M13%3.2
May 15, 202621.3M14%1.5
Apr 30, 202618.9M12%2.3
Apr 15, 202619.6M13%1.1
Mar 31, 202618.4M12%1.5

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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