Marshall Wace
IOSP icon

Marshall Wace’s Innospec IOSP Stock Holding History

Marshall Wace’s Portfolio IOSP Stock Details IOSP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.45M Buy
33,526
+24,298
+263% +$1.89M ﹤0.01% 1667
2025
Q4 		$706K Buy
+9,228
New +$697K ﹤0.01% 2097
2024
Q3 		– Sell
-39,992
Closed -$4.94M – 2724
2024
Q2 		$4.94M Buy
+39,992
New +$5.01M 0.01% 991
2020
Q4 		– Sell
-13,260
Closed -$840K – 2017
2020
Q3 		$840K Sell
13,260
-79,053
-86% -$5.87M 0.01% 1088
2020
Q2 		$7.13M Buy
92,313
+27,484
+42% +$2.01M 0.05% 382
2020
Q1 		$4.5M Buy
+64,829
New +$5.92M 0.05% 410
2019
Q4 		– Sell
-5,275
Closed -$470K – 1884
2019
Q3 		$470K Buy
+5,275
New +$473K ﹤0.01% 1121
2016
Q3 		– Sell
-14,706
Closed -$676K – 1035
2016
Q2 		$676K Buy
14,706
+431
+3% +$20.4K 0.01% 781
2016
Q1 		$619K Buy
+14,275
New +$660K 0.01% 816
2015
Q4 		– Sell
-9,534
Closed -$443K – 1044
2015
Q3 		$443K Buy
+9,534
New +$437K 0.01% 753

Other funds holding IOSP

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Marshall Wace's IOSP Position: Q1 2026 in Review

Marshall Wace increased its Innospec (IOSP) stake by 263% in Q1 2026, buying an estimated $1.89M and bringing the position to 33,526 shares worth $2.45M. The position accounts for ﹤0.01% of the portfolio, ranked #1667.

Marshall Wace first reported a position in IOSP in Q3 2015 and has held it in 10 quarters since. The position peaked at $7.13M in Q2 2020. 266 funds tracked by Wall St. Rank hold IOSP as of Q1 2026.

  • Marshall Wace held 33,526 shares of Innospec worth $2.45M as of Q1 2026.
  • Marshall Wace bought 24,298 Innospec shares in Q1 2026, an estimated $1.89M.
  • Innospec made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #1667 holding.
  • Marshall Wace first reported a position in Innospec in Q3 2015 and has held it in 10 quarters since.
  • Marshall Wace's Innospec position peaked at $7.13M in Q2 2020.
  • 266 funds tracked by Wall St. Rank held Innospec as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.