Tudor Investment Corp
QLYS icon

Tudor Investment Corp’s Qualys QLYS Stock Holding History

Tudor Investment Corp’s Portfolio QLYS Stock Details QLYS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$22M Buy
250,885
+33,410
+15% +$3.7M 0.04% 389
2025
Q4 		$28.9M Buy
217,475
+156,558
+257% +$21.5M 0.05% 295
2025
Q3 		$8.06M Sell
60,917
-62,265
-51% -$8.44M 0.01% 889
2025
Q2 		$17.6M Buy
123,182
+80,559
+189% +$10.7M 0.04% 382
2025
Q1 		$5.37M Buy
+42,623
New +$5.76M 0.02% 759
2024
Q3 		– Sell
-13,998
Closed -$2M – 3031
2024
Q2 		$2M Buy
+13,998
New +$2.13M 0.01% 1067
2024
Q1 		– Sell
-92,199
Closed -$18.1M – 2685
2023
Q4 		$18.1M Buy
92,199
+54,514
+145% +$9.53M 0.15% 146
2023
Q3 		$5.75M Buy
+37,685
New +$5.42M 0.06% 443
2022
Q3 		– Sell
-59,067
Closed -$7.45M – 2626
2022
Q2 		$7.45M Buy
59,067
+20,392
+53% +$2.67M 0.2% 86
2022
Q1 		$5.51M Sell
38,675
-1,133
-3% -$145K 0.13% 192
2021
Q4 		$5.46M Buy
+39,808
New +$5.09M 0.09% 238
2021
Q3 		– Sell
-42,313
Closed -$4.26M – 2735
2021
Q2 		$4.26M Buy
42,313
+9,677
+30% +$985K 0.08% 283
2021
Q1 		$3.42M Buy
+32,636
New +$3.65M 0.07% 301
2020
Q1 		– Sell
-23,364
Closed -$1.95M – 1269
2019
Q4 		$1.95M Buy
23,364
+20,373
+681% +$1.69M 0.09% 291
2019
Q3 		$226K Buy
+2,991
New +$249K 0.01% 932
2017
Q1 		– Sell
-9,729
Closed -$308K – 1520
2016
Q4 		$308K Buy
+9,729
New +$342K 0.01% 1010
2016
Q1 		– Sell
-9,403
Closed -$311K – 1930
2015
Q4 		$311K Sell
9,403
-6,098
-39% -$215K 0.01% 1203
2015
Q3 		$441K Buy
15,501
+4,609
+42% +$155K 0.01% 844
2015
Q2 		$439K Sell
10,892
-6,042
-36% -$271K 0.01% 852
2015
Q1 		$787K Buy
16,934
+9,600
+131% +$411K 0.03% 483
2014
Q4 		$277K Sell
7,334
-3,455
-32% -$115K 0.01% 1087
2014
Q3 		$287K Buy
+10,789
New +$272K 0.01% 1034

Other funds holding QLYS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
BTW
Boston Trust Walden Boston, Massachusetts $12.2B AUM 12.45% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Tudor Investment Corp's QLYS Position: Q1 2026 in Review

Tudor Investment Corp increased its Qualys (QLYS) stake by 15% in Q1 2026, buying an estimated $3.7M and bringing the position to 250,885 shares worth $22M. The position accounts for 0.04% of the portfolio, ranked #389.

Tudor Investment Corp first reported a position in QLYS in Q3 2014 and has held it in 22 quarters since. The position peaked at $28.9M in Q4 2025. 420 funds tracked by Wall St. Rank hold QLYS as of Q1 2026.

  • Tudor Investment Corp held 250,885 shares of Qualys worth $22M as of Q1 2026.
  • Tudor Investment Corp bought 33,410 Qualys shares in Q1 2026, an estimated $3.7M.
  • Qualys made up 0.04% of Tudor Investment Corp's portfolio in Q1 2026, its #389 holding.
  • Tudor Investment Corp first reported a position in Qualys in Q3 2014 and has held it in 22 quarters since.
  • Tudor Investment Corp's Qualys position peaked at $28.9M in Q4 2025.
  • 420 funds tracked by Wall St. Rank held Qualys as of Q1 2026.

Based on Tudor Investment Corp's 13F filing for Q1 2026, filed 15 May 2026.