Qualys
QLYS
422 hedge funds and large institutions have $3.25B invested in Qualys in 2026 Q1 according to their latest regulatory filings, with 63 funds opening new positions, 189 increasing their positions, 119 reducing their positions, and 83 closing their positions.
86% more call options, than puts
Call options by funds: $27.7M | Put options by funds: $14.9M
59% more repeat investments, than reductions
Existing positions increased: 189 | Existing positions reduced: 119
3.14% more ownership
Funds ownership: 100.57% → 103.71% (+3.1%)
6% less funds holding
Funds holding: 448 → 422 (-26)
24% less first-time investments, than exits
New positions opened: 63 | Existing positions closed: 83
32% less capital invested
Capital invested by funds: $4.8B → $3.25B (-$1.54B)
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$51.6M |
| 2 |
AQR Capital Management
Greenwich,
Connecticut
|
+$44.9M |
| 3 |
Alyeska Investment Group
Chicago,
Illinois
|
+$33.8M |
| 4 |
JP Morgan Chase
New York
|
+$30.2M |
| 5 |
PCM
Portolan Capital Management
Boston,
Massachusetts
|
+$20.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fuller & Thaler Asset Management
San Mateo,
California
|
-$78.6M |
| 2 |
Fundsmith LLP
London,
United Kingdom
|
-$46.7M |
| 3 |
First Trust Advisors
Wheaton,
Illinois
|
-$41.7M |
| 4 |
Neuberger Berman Group
New York
|
-$38.2M |
| 5 |
ACM
American Capital Management
New York
|
-$35.5M |
QLYS Hedge Fund Activity: Q1 2026 in Review
422 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in Qualys (QLYS) for Q1 2026, worth a combined $3.25B — down 32% from $4.8B a quarter earlier.
Sellers outnumbered buyers: 83 funds closed out of QLYS and 63 opened new positions — a net loss of 20 holders — while 119 trimmed existing stakes and 189 added.
The largest buyer was Arrowstreet Capital, adding an estimated $51.6M. The largest seller was Fuller & Thaler Asset Management, exiting entirely with an estimated $78.6M sold.
- 422 institutional investors held Qualys (QLYS) as of Q1 2026, down from 448 in Q4 2025.
- Funds reported $3.25B of Qualys stock for Q1 2026, down 32% quarter-over-quarter.
- 63 funds opened new Qualys positions in Q1 2026 and 83 closed out, a net change of -20 holders.
- The largest Qualys buyer in Q1 2026 was Arrowstreet Capital, an estimated $51.6M added.
- The largest Qualys seller in Q1 2026 was Fuller & Thaler Asset Management, an estimated $78.6M sold.
Based on aggregated 13F filings for Q1 2026.