Fastly Inc
FSLY
239 hedge funds and large institutions have $900M invested in Fastly Inc in 2025 Q3 according to their latest regulatory filings, with 44 funds opening new positions, 67 increasing their positions, 77 reducing their positions, and 40 closing their positions.
31% more call options, than puts
Call options by funds: $32.8M | Put options by funds: $25M
27% more capital invested
Capital invested by funds: $707M → $900M (+$193M)
10% more first-time investments, than exits
New positions opened: 44 | Existing positions closed: 40
2.17% more ownership
Funds ownership: 69.2% → 71.37% (+2.2%)
1% more funds holding
Funds holding: 236 → 239 (+3)
13% less repeat investments, than reductions
Existing positions increased: 67 | Existing positions reduced: 77
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PCM
Penserra Capital Management
Orinda,
California
|
+$53.6M |
| 2 |
DSCM
Divisadero Street Capital Management
Miami,
Florida
|
+$18.3M |
| 3 |
Nuveen
Charlotte,
North Carolina
|
+$12.6M |
| 4 |
AG
Algert Global
San Francisco,
California
|
+$8.37M |
| 5 |
Vanguard Group
Malvern,
Pennsylvania
|
+$4.11M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Marshall Wace
London,
United Kingdom
|
-$16M |
| 2 |
Balyasny Asset Management
Chicago,
Illinois
|
-$9.72M |
| 3 |
Two Sigma Investments
New York
|
-$7.02M |
| 4 |
Jane Street
New York
|
-$5.39M |
| 5 |
Two Sigma Advisers
New York
|
-$4.97M |
FSLY Hedge Fund Activity: Q3 2025 in Review
239 of the 7,640 institutional investors tracked by Wall St. Rank reported a position in Fastly Inc (FSLY) for Q3 2025, worth a combined $900M — up 27% from $707M a quarter earlier.
Buyers outnumbered sellers: 44 funds opened new FSLY positions and 40 closed out — a net gain of 4 holders — while 67 added to existing stakes and 77 trimmed.
The largest buyer was Penserra Capital Management, opening a new position worth an estimated $53.6M. The largest seller was Marshall Wace, cutting an estimated $16M.
- 239 institutional investors held Fastly Inc (FSLY) as of Q3 2025, up from 236 in Q2 2025.
- Funds reported $900M of Fastly Inc stock for Q3 2025, up 27% quarter-over-quarter.
- 44 funds opened new Fastly Inc positions in Q3 2025 and 40 closed out, a net change of +4 holders.
- The largest Fastly Inc buyer in Q3 2025 was Penserra Capital Management, an estimated $53.6M added.
- The largest Fastly Inc seller in Q3 2025 was Marshall Wace, an estimated $16M sold.
Based on aggregated 13F filings for Q3 2025.