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FSLY · Fastly, Inc.

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$23.29 +0.29 (+1.26%) At close · Aug 26
Market Cap
$3.66B
Shares
159.30M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 287
Total Value: $2,983,811,895
Total Shares: 162,517,037

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 287 13F filers · Δ vs Mar 31, 2026
Top Holder
9.4%
Sep 2023 → Jun 2026 · range 8.1% – 15.7%
+1.3 pts
Top 5
32.5%
Sep 2023 → Jun 2026 · range 30.7% – 53.4%
+1.8 pts
Top 10
49.7%
Sep 2023 → Jun 2026 · range 46.4% – 67.7%
+3.3 pts
HHI
352
Sep 2023 → Jun 2026 · range 313 – 719
Broadly held+39

Quarterly Activity

vs Mar 31, 2026
New
53
Increased
102
Decreased
94
Sold Out
115
Unchanged
38
Holder count: -62
Institutional value: -33.3%
Shares held: +5.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 314
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1517413 CUSIP 31188V100 13F (30d) 247 filings 243 filers Visit website Investor relations