Qualys
QLYS
436 hedge funds and large institutions have $5.01B invested in Qualys in 2025 Q2 according to their latest regulatory filings, with 57 funds opening new positions, 175 increasing their positions, 149 reducing their positions, and 46 closing their positions.
1,971% more call options, than puts
Call options by funds: $30.2M | Put options by funds: $1.46M
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
24% more first-time investments, than exits
New positions opened: 57 | Existing positions closed: 46
17% more repeat investments, than reductions
Existing positions increased: 175 | Existing positions reduced: 149
14% more capital invested
Capital invested by funds: $4.4B → $5.01B (+$609M)
2% more funds holding
Funds holding: 427 → 436 (+9)
0.73% more ownership
Funds ownership: 95.78% → 96.51% (+0.73%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AQR Capital Management
Greenwich,
Connecticut
|
+$42.8M |
| 2 |
Millennium Management
New York
|
+$22.8M |
| 3 |
BTW
Boston Trust Walden
Boston,
Massachusetts
|
+$11.7M |
| 4 |
Morgan Stanley
New York
|
+$11.4M |
| 5 |
Point72 Asset Management
Stamford,
Connecticut
|
+$11.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CU
CDAM (UK)
London,
United Kingdom
|
-$28M |
| 2 |
Ameriprise
Minneapolis,
Minnesota
|
-$24.2M |
| 3 |
UBS AM
Chicago,
Illinois
|
-$19.1M |
| 4 |
Marshall Wace
London,
United Kingdom
|
-$17.5M |
| 5 |
ACM
American Capital Management
New York
|
-$15.7M |
QLYS Hedge Fund Activity: Q2 2025 in Review
436 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Qualys (QLYS) for Q2 2025, worth a combined $5.01B — up 14% from $4.4B a quarter earlier.
Buyers outnumbered sellers: 57 funds opened new QLYS positions and 46 closed out — a net gain of 11 holders — while 175 added to existing stakes and 149 trimmed.
The largest buyer was AQR Capital Management, adding an estimated $42.8M. The largest seller was CDAM (UK), cutting an estimated $28M.
- 436 institutional investors held Qualys (QLYS) as of Q2 2025, up from 427 in Q1 2025.
- Funds reported $5.01B of Qualys stock for Q2 2025, up 14% quarter-over-quarter.
- 57 funds opened new Qualys positions in Q2 2025 and 46 closed out, a net change of +11 holders.
- The largest Qualys buyer in Q2 2025 was AQR Capital Management, an estimated $42.8M added.
- The largest Qualys seller in Q2 2025 was CDAM (UK), an estimated $28M sold.
Based on aggregated 13F filings for Q2 2025.