Balyasny Asset Management
IOSP icon

Balyasny Asset Management’s Innospec IOSP Stock Holding History

Balyasny Asset Management’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
2025
Q4 		– Sell
-11,000
Closed -$849K – 3309
2025
Q3 		$849K Sell
11,000
-36,239
-77% -$3.03M ﹤0.01% 2186
2025
Q2 		$3.97M Buy
47,239
+11,238
+31% +$984K 0.01% 1394
2025
Q1 		$3.41M Buy
+36,001
New +$3.81M 0.01% 1435
2024
Q4 		– Sell
-11,920
Closed -$1.35M – 2992
2024
Q3 		$1.35M Sell
11,920
-3,893
-25% -$453K ﹤0.01% 1846
2024
Q2 		$1.95M Buy
15,813
+13,651
+631% +$1.71M ﹤0.01% 1543
2024
Q1 		$279K Sell
2,162
-7,872
-78% -$956K ﹤0.01% 2291
2023
Q4 		$1.24M Buy
10,034
+808
+9% +$86K ﹤0.01% 1601
2023
Q3 		$943K Sell
9,226
-629
-6% -$65.7K ﹤0.01% 1580
2023
Q2 		$990K Buy
9,855
+3,284
+50% +$329K ﹤0.01% 1630
2023
Q1 		$675K Buy
6,571
+1,100
+20% +$118K ﹤0.01% 1871
2022
Q4 		$563K Buy
+5,471
New +$555K ﹤0.01% 1825
2020
Q1 		– Sell
-2,533
Closed -$262K – 1320
2019
Q4 		$262K Buy
+2,533
New +$242K ﹤0.01% 1079
2018
Q3 		– Sell
-6,832
Closed -$523K – 1840
2018
Q2 		$523K Sell
6,832
-4,310
-39% -$323K ﹤0.01% 1342
2018
Q1 		$764K Buy
+11,142
New +$775K ﹤0.01% 1316
2016
Q3 		– Sell
-7,901
Closed -$363K – 1128
2016
Q2 		$363K Buy
+7,901
New +$374K ﹤0.01% 879

Other funds holding IOSP

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $59.7B AUM 29.08% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
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
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
WHG
Westwood Holdings Group Dallas, Texas $13.7B AUM 21.48% 1-Year Est. Return

Balyasny Asset Management's IOSP Position: Q4 2025 in Review

Balyasny Asset Management sold out of Innospec (IOSP) in Q4 2025, closing a stake of 11,000 shares — an estimated $849K sold.

Balyasny Asset Management first reported a position in IOSP in Q2 2016 and held it in 15 quarters. The position peaked at $3.97M in Q2 2025. 260 funds tracked by Wall St. Rank hold IOSP as of Q4 2025.

  • Balyasny Asset Management reported no remaining Innospec position as of Q4 2025 after selling out during the quarter.
  • Balyasny Asset Management sold 11,000 Innospec shares in Q4 2025, an estimated $849K.
  • Balyasny Asset Management first reported a position in Innospec in Q2 2016 and held it in 15 quarters.
  • Balyasny Asset Management's Innospec position peaked at $3.97M in Q2 2025.
  • 260 funds tracked by Wall St. Rank held Innospec as of Q4 2025.

Based on Balyasny Asset Management's 13F filing for Q4 2025, filed 17 Feb 2026.