Flex
FLEX
764 hedge funds and large institutions have $22.1B invested in Flex in 2025 Q4 according to their latest regulatory filings, with 147 funds opening new positions, 205 increasing their positions, 307 reducing their positions, and 63 closing their positions.
133% more first-time investments, than exits
New positions opened: 147 | Existing positions closed: 63
23% more call options, than puts
Call options by funds: $111M | Put options by funds: $90M
9% more funds holding
Funds holding: 698 → 764 (+66)
7% more capital invested
Capital invested by funds: $20.6B → $22.1B (+$1.41B)
3.96% more ownership
Funds ownership: 94.86% → 98.82% (+4%)
33% less repeat investments, than reductions
Existing positions increased: 205 | Existing positions reduced: 307
42% less funds holding in top 10
Funds holding in top 10: 19 → 11 (-8)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Vanguard Group
Malvern,
Pennsylvania
|
+$1.59B |
| 2 |
BlackRock
New York
|
+$428M |
| 3 |
UBS AM
Chicago,
Illinois
|
+$163M |
| 4 |
PCH
Polar Capital Holdings
London,
United Kingdom
|
+$134M |
| 5 |
State Street
Boston,
Massachusetts
|
+$131M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Boston Partners
Boston,
Massachusetts
|
-$428M |
| 2 |
AllianceBernstein
Nashville,
Tennessee
|
-$269M |
| 3 |
Janus Henderson Group
London,
|
-$246M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
-$229M |
| 5 |
Primecap Management
Pasadena,
California
|
-$180M |
FLEX Hedge Fund Activity: Q4 2025 in Review
764 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Flex (FLEX) for Q4 2025, worth a combined $22.1B — up 6.9% from $20.6B a quarter earlier.
Buyers outnumbered sellers: 147 funds opened new FLEX positions and 63 closed out — a net gain of 84 holders — while 205 added to existing stakes and 307 trimmed.
The largest buyer was Vanguard Group, adding an estimated $1.59B. The largest seller was Boston Partners, cutting an estimated $428M.
- 764 institutional investors held Flex (FLEX) as of Q4 2025, up from 698 in Q3 2025.
- Funds reported $22.1B of Flex stock for Q4 2025, up 6.9% quarter-over-quarter.
- 147 funds opened new Flex positions in Q4 2025 and 63 closed out, a net change of +84 holders.
- The largest Flex buyer in Q4 2025 was Vanguard Group, an estimated $1.59B added.
- The largest Flex seller in Q4 2025 was Boston Partners, an estimated $428M sold.
Based on aggregated 13F filings for Q4 2025.