WSL
IOSP icon

Western Standard LLC’s Innospec IOSP Stock Holding History

Western Standard LLC’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
Q2 		$19.3M Buy
236,833
+10,000
+4% +$791K 6.53% 6
2026
Q1 		$16.6M Sell
226,833
-41,534
-15% -$3.23M 8.71% 4
2025
Q4 		$20.5M Buy
268,367
+241,367
+894% +$18.2M 9.48% 4
2025
Q3 		$2.08M Buy
+27,000
New +$2.25M 0.62% 22

Other funds holding IOSP

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Allspring Global Investments
Allspring Global Investments Charlotte, North Carolina $65.2B AUM 39.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Western Standard LLC's IOSP Position: Q2 2026 in Review

Western Standard LLC increased its Innospec (IOSP) stake by 4.4% in Q2 2026, buying an estimated $791K and bringing the position to 236,833 shares worth $19.3M. The position accounts for 6.53% of the portfolio, ranked #6.

Western Standard LLC first reported a position in IOSP in Q3 2025 and has held it in 4 quarters since. The position peaked at $20.5M in Q4 2025. 281 funds tracked by Wall St. Rank hold IOSP as of Q2 2026.

  • Western Standard LLC held 236,833 shares of Innospec worth $19.3M as of Q2 2026.
  • Western Standard LLC bought 10,000 Innospec shares in Q2 2026, an estimated $791K.
  • Innospec made up 6.53% of Western Standard LLC's portfolio in Q2 2026, its #6 holding.
  • Western Standard LLC first reported a position in Innospec in Q3 2025 and has held it in 4 quarters since.
  • Western Standard LLC's Innospec position peaked at $20.5M in Q4 2025.
  • 281 funds tracked by Wall St. Rank held Innospec as of Q2 2026.

Based on Western Standard LLC's 13F filing for Q2 2026, filed 10 Aug 2026.