Marshall Wace
HROW icon

Marshall Wace’s Harrow HROW Stock Holding History

Marshall Wace’s Portfolio HROW Stock Details HROW Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$15.7M Sell
369,435
-275,483
-43% -$10.2M 0.01% 828
2026
Q1 		$22.7M Buy
644,918
+444,611
+222% +$19.5M 0.02% 656
2025
Q4 		$9.82M Sell
200,307
-307,809
-61% -$12.9M 0.01% 879
2025
Q3 		$24.5M Sell
508,116
-56,760
-10% -$2.14M 0.02% 568
2025
Q2 		$17.3M Buy
564,876
+135,202
+31% +$3.63M 0.02% 643
2025
Q1 		$11.4M Buy
+429,674
New +$12.9M 0.01% 721
2024
Q3 		– Sell
-53,249
Closed -$1.11M – 2695
2024
Q2 		$1.11M Buy
+53,249
New +$796K ﹤0.01% 1639
2024
Q1 		– Sell
-113,534
Closed -$1.27M – 2598
2023
Q4 		$1.27M Sell
113,534
-10,592
-9% -$125K ﹤0.01% 1399
2023
Q3 		$1.78M Buy
+124,126
New +$2.17M ﹤0.01% 1277
2023
Q2 		– Sell
-99,629
Closed -$2.11M – 2663
2023
Q1 		$2.11M Sell
99,629
-2,401
-2% -$40.9K ﹤0.01% 1428
2022
Q4 		$1.51M Buy
102,030
+75,031
+278% +$897K ﹤0.01% 1888
2022
Q3 		$326K Buy
26,999
+1,030
+4% +$8.36K ﹤0.01% 2915
2022
Q2 		$189K Buy
+25,969
New +$175K ﹤0.01% 3180
2021
Q2 		– Sell
-29,272
Closed -$198K – 2821
2021
Q1 		$198K Buy
+29,272
New +$240K ﹤0.01% 2266
2020
Q2 		– Sell
-10,693
Closed -$41K – 1724
2020
Q1 		$41K Buy
+10,693
New +$63.3K ﹤0.01% 1454
2019
Q2 		– Sell
-221,693
Closed -$1.1M – 1551
2019
Q1 		$1.1M Buy
+221,693
New +$1.34M 0.01% 897

Other funds holding HROW

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
OM
Opaleye Management Boston, Massachusetts $1.1B AUM 197.64% 1-Year Est. Return
PCMF
Private Capital Management (Florida) Naples, Florida $1.14B AUM 34.86% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM

Marshall Wace's HROW Position: Q2 2026 in Review

Marshall Wace reduced its Harrow (HROW) stake by 43% in Q2 2026, selling an estimated $10.2M and leaving 369,435 shares worth $15.7M. The position accounts for 0.01% of the portfolio, ranked #828.

Marshall Wace first reported a position in HROW in Q1 2019 and has held it in 16 quarters since. The position peaked at $24.5M in Q3 2025. 223 funds tracked by Wall St. Rank hold HROW as of Q2 2026.

  • Marshall Wace held 369,435 shares of Harrow worth $15.7M as of Q2 2026.
  • Marshall Wace sold 275,483 Harrow shares in Q2 2026, an estimated $10.2M.
  • Harrow made up 0.01% of Marshall Wace's portfolio in Q2 2026, its #828 holding.
  • Marshall Wace first reported a position in Harrow in Q1 2019 and has held it in 16 quarters since.
  • Marshall Wace's Harrow position peaked at $24.5M in Q3 2025.
  • 223 funds tracked by Wall St. Rank held Harrow as of Q2 2026.

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