Marshall Wace
JHG

Marshall Wace’s Janus Henderson JHG Stock Holding History

Marshall Wace’s Portfolio JHG Stock Details JHG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.6M Sell
222,776
-9,200
-4% -$476K 0.01% 975
2026
Q1 		$11.9M Buy
231,976
+186,341
+408% +$9.23M 0.01% 896
2025
Q4 		$2.17M Buy
45,635
+38,745
+562% +$1.71M ﹤0.01% 1539
2025
Q3 		$307K Sell
6,890
-16,468
-71% -$711K ﹤0.01% 2422
2025
Q2 		$907K Buy
+23,358
New +$823K ﹤0.01% 1898
2025
Q1 		– Sell
-70,314
Closed -$2.99M – 2869
2024
Q4 		$2.99M Sell
70,314
-153,181
-69% -$6.49M ﹤0.01% 1289
2024
Q3 		$8.51M Sell
223,495
-777,328
-78% -$28.1M 0.01% 815
2024
Q2 		$33.7M Buy
1,000,823
+327,819
+49% +$10.7M 0.05% 342
2024
Q1 		$22.1M Buy
673,004
+321,709
+92% +$9.84M 0.03% 480
2023
Q4 		$10.6M Buy
351,295
+338,998
+2,757% +$8.76M 0.02% 673
2023
Q3 		$318K Sell
12,297
-285,508
-96% -$7.81M ﹤0.01% 1864
2023
Q2 		$8.12M Buy
297,805
+74,555
+33% +$1.99M 0.02% 829
2023
Q1 		$5.95M Sell
223,250
-208,823
-48% -$5.56M 0.01% 908
2022
Q4 		$10.2M Buy
432,073
+177,035
+69% +$4.15M 0.02% 790
2022
Q3 		$5.18M Buy
255,038
+240,117
+1,609% +$5.8M 0.01% 1346
2022
Q2 		$350K Buy
+14,921
New +$429K ﹤0.01% 2964
2022
Q1 		– Sell
-10,747
Closed -$451K – 3674
2021
Q4 		$451K Buy
+10,747
New +$475K ﹤0.01% 2861
2021
Q3 		– Sell
-253,385
Closed -$9.83M – 3228
2021
Q2 		$9.83M Sell
253,385
-345,121
-58% -$12.5M 0.04% 494
2021
Q1 		$18.6M Buy
+598,506
New +$18.8M 0.09% 240
2020
Q3 		– Sell
-15,531
Closed -$329K – 1757
2020
Q2 		$329K Sell
15,531
-101,413
-87% -$1.96M ﹤0.01% 1304
2020
Q1 		$1.79M Buy
+116,944
New +$2.57M 0.02% 662
2019
Q2 		– Sell
-3,183
Closed -$80K – 1586
2019
Q1 		$80K Sell
3,183
-279,195
-99% -$6.48M ﹤0.01% 1469
2018
Q4 		$5.85M Buy
+282,378
New +$6.48M 0.06% 403

Other funds holding JHG

TFM
Trian Fund Management New York $4.23B AUM 31.93% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Marshall Wace's JHG Position: Q2 2026 in Review

Marshall Wace reduced its Janus Henderson (JHG) stake by 4% in Q2 2026, selling an estimated $476K and leaving 222,776 shares worth $11.6M. The position accounts for 0.01% of the portfolio, ranked #975.

Marshall Wace first reported a position in JHG in Q4 2018 and has held it in 23 quarters since. The position peaked at $33.7M in Q2 2024. 416 funds tracked by Wall St. Rank hold JHG as of Q2 2026.

  • Marshall Wace held 222,776 shares of Janus Henderson worth $11.6M as of Q2 2026.
  • Marshall Wace sold 9,200 Janus Henderson shares in Q2 2026, an estimated $476K.
  • Janus Henderson made up 0.01% of Marshall Wace's portfolio in Q2 2026, its #975 holding.
  • Marshall Wace first reported a position in Janus Henderson in Q4 2018 and has held it in 23 quarters since.
  • Marshall Wace's Janus Henderson position peaked at $33.7M in Q2 2024.
  • 416 funds tracked by Wall St. Rank held Janus Henderson as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.