Portolan Capital Management’s Qualys QLYS Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $21M | Buy |
239,028
+187,173
| +361% | +$20.7M | 1.12% | 28 |
|
|
2025
Q4 | $6.89M | Buy |
+51,855
| New | +$7.13M | 0.37% | 88 |
|
|
2023
Q1 | – | Sell |
-36,715
| Closed | -$4.12M | – | 164 |
|
|
2022
Q4 | $4.12M | Buy |
36,715
+12,672
| +53% | +$1.58M | 0.41% | 83 |
|
|
2022
Q3 | $3.35M | Sell |
24,043
-54
| -0.2% | -$7.61K | 0.35% | 96 |
|
|
2022
Q2 | $3.04M | Sell |
24,097
-15,089
| -39% | -$1.98M | 0.31% | 97 |
|
|
2022
Q1 | $5.58M | Buy |
+39,186
| New | +$5M | 0.44% | 83 |
|
|
2021
Q4 | – | Sell |
-23,205
| Closed | -$2.58M | – | 149 |
|
|
2021
Q3 | $2.58M | Buy |
+23,205
| New | +$2.54M | 0.19% | 111 |
|
|
2021
Q1 | – | Sell |
-60,177
| Closed | -$7.33M | – | 175 |
|
|
2020
Q4 | $7.33M | Sell |
60,177
-24,325
| -29% | -$2.41M | 0.67% | 56 |
|
|
2020
Q3 | $8.28M | Buy |
84,502
+18,544
| +28% | +$1.98M | 0.94% | 35 |
|
|
2020
Q2 | $6.86M | Sell |
65,958
-130,122
| -66% | -$13.6M | 0.78% | 43 |
|
|
2020
Q1 | $17.1M | Buy |
196,080
+90,582
| +86% | +$7.6M | 2.56% | 6 |
|
|
2019
Q4 | $8.79M | Buy |
+105,498
| New | +$8.75M | 0.89% | 44 |
|
|
2019
Q1 | – | Sell |
-8,932
| Closed | -$668K | – | 93 |
|
|
2018
Q4 | $668K | Sell |
8,932
-1,741
| -16% | -$131K | 0.08% | 79 |
|
|
2018
Q3 | $951K | Sell |
10,673
-22,577
| -68% | -$2.03M | 0.09% | 92 |
|
|
2018
Q2 | $2.8M | Sell |
33,250
-64,008
| -66% | -$5.14M | 0.29% | 77 |
|
|
2018
Q1 | $7.08M | Sell |
97,258
-101,088
| -51% | -$6.98M | 0.78% | 51 |
|
|
2017
Q4 | $11.8M | Sell |
198,346
-114,881
| -37% | -$6.46M | 1.29% | 27 |
|
|
2017
Q3 | $16.2M | Buy |
313,227
+157,559
| +101% | +$7.23M | 1.93% | 11 |
|
|
2017
Q2 | $6.35M | Buy |
155,668
+51,782
| +50% | +$2.08M | 0.82% | 45 |
|
|
2017
Q1 | $3.94M | Sell |
103,886
-38,953
| -27% | -$1.37M | 0.51% | 71 |
|
|
2016
Q4 | $4.52M | Buy |
142,839
+103,508
| +263% | +$3.64M | 0.61% | 71 |
|
|
2016
Q3 | $1.5M | Buy |
+39,331
| New | +$1.32M | 0.21% | 105 |
|
|
2016
Q2 | – | Sell |
-162,593
| Closed | -$4.12M | – | 118 |
|
|
2016
Q1 | $4.12M | Buy |
162,593
+47,526
| +41% | +$1.23M | 0.55% | 64 |
|
|
2015
Q4 | $3.81M | Sell |
115,067
-220,518
| -66% | -$7.78M | 0.48% | 78 |
|
|
2015
Q3 | $9.55M | Buy |
335,585
+192,240
| +134% | +$6.45M | 1.27% | 21 |
|
|
2015
Q2 | $5.78M | Buy |
143,345
+113,169
| +375% | +$5.08M | 0.81% | 48 |
|
|
2015
Q1 | $1.4M | Hold |
30,176
| – | – | 0.26% | 109 |
|
|
2014
Q4 | $1.14M | Sell |
30,176
-122,178
| -80% | -$4.08M | 0.23% | 99 |
|
|
2014
Q3 | $4.05M | Sell |
152,354
-65,654
| -30% | -$1.66M | 0.92% | 50 |
|
|
2014
Q2 | $5.6M | Sell |
218,008
-76,640
| -26% | -$1.74M | 1.22% | 27 |
|
|
2014
Q1 | $7.49M | Buy |
294,648
+118,354
| +67% | +$3.19M | 1.73% | 11 |
|
|
2013
Q4 | $4.07M | Buy |
+176,294
| New | +$3.92M | 0.9% | 44 |
|
Other funds holding QLYS
VPM
VCM
BTW
Portolan Capital Management's QLYS Position: Q1 2026 in Review
Portolan Capital Management increased its Qualys (QLYS) stake by 361% in Q1 2026, buying an estimated $20.7M and bringing the position to 239,028 shares worth $21M. The position accounts for 1.12% of the portfolio, ranked #28.
Portolan Capital Management first reported a position in QLYS in Q4 2013 and has held it in 32 quarters since. 420 funds tracked by Wall St. Rank hold QLYS as of Q1 2026.
- Portolan Capital Management held 239,028 shares of Qualys worth $21M as of Q1 2026.
- Portolan Capital Management bought 187,173 Qualys shares in Q1 2026, an estimated $20.7M.
- Qualys made up 1.12% of Portolan Capital Management's portfolio in Q1 2026, its #28 holding.
- Portolan Capital Management first reported a position in Qualys in Q4 2013 and has held it in 32 quarters since.
- 420 funds tracked by Wall St. Rank held Qualys as of Q1 2026.
Based on Portolan Capital Management's 13F filing for Q1 2026, filed 15 May 2026.