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Of the 12 tracked institutions holding FSLY, 5 have a 3-year clone track record — 5 of them beat the S&P. Average holder's clone alpha: +4.6pt. It's a gauge of who owns the name, not just how many.
Among the 12 tracked institutional investors we monitor, FSLY (FASTLY INC) is held with a combined value of $855.41M across 54,936,064 shares. The largest holder is BlackRock, Inc. with a position worth $279.49M. WELLINGTON MANAGEMENT GROUP LLP opened a new position in the most recent quarter. 8 funds increased their holdings. 3 funds reduced their position.
Total Institutional Value
$855.41M
Total Shares Held
54,936,064
Institutional Holders
12
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $279.49M | 0.00% | +22.4% |
| 2 | FMR LLC | $218.34M | 0.01% | +37.7% |
| 3 | VANGUARD GROUP INC | $172.82M | 0.00% | +1.9% |
| 4 | STATE STREET CORP | $64.94M | 0.00% | +8.7% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $42.03M | 0.00% | +8.6% |
| 6 | MILLENNIUM MANAGEMENT LLC | $27.82M | 0.02% | -3.2% |
| 7 | TWO SIGMA ADVISERS, LP | $17.84M | 0.03% | +159.6% |
| 8 | CITADEL ADVISORS LLC | $10.95M | 0.01% | +29.5% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $8.70M | 0.00% | New |
| 10 | AQR CAPITAL MANAGEMENT LLC | $6.17M | 0.00% | +6.9% |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of FSLY with a position worth $279.49M, representing 0.00% of their portfolio. In total, 12 institutional investors hold FSLY with a combined value of $855.41M.
In the most recent quarter, 1 fund opened a new position in FSLY. Additionally, 8 increased their holdings and 3 reduced their positions.
Institutional investors hold $855.41M worth of FSLY stock across 12 positions. The largest institutional holder is BlackRock, Inc. with $279.49M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For FSLY, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their FSLY positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| 2026-08-12 |
| 7.7% | 2026-08-06 |
| 8.9% | 2026-07-30 |
SEC Schedule 13D (activist) and 13G (passive) filings for FSLY. Filed when an investor acquires 5%+ ownership.
Last Close
$23.30
2026-10-21
YTD
+128.7%
60% of 52-week range
