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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
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 $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

Western Standard LLC's IOSP Position: Q1 2026 in Review

Western Standard LLC reduced its Innospec (IOSP) stake by 15% in Q1 2026, selling an estimated $3.23M and leaving 226,833 shares worth $16.6M. The position accounts for 8.71% of the portfolio, ranked #4.

Western Standard LLC first reported a position in IOSP in Q3 2025 and has held it in 3 quarters since. The position peaked at $20.5M in Q4 2025. 266 funds tracked by Wall St. Rank hold IOSP as of Q1 2026.

  • Western Standard LLC held 226,833 shares of Innospec worth $16.6M as of Q1 2026.
  • Western Standard LLC sold 41,534 Innospec shares in Q1 2026, an estimated $3.23M.
  • Innospec made up 8.71% of Western Standard LLC's portfolio in Q1 2026, its #4 holding.
  • Western Standard LLC first reported a position in Innospec in Q3 2025 and has held it in 3 quarters since.
  • Western Standard LLC's Innospec position peaked at $20.5M in Q4 2025.
  • 266 funds tracked by Wall St. Rank held Innospec as of Q1 2026.

Based on Western Standard LLC's 13F filing for Q1 2026, filed 5 May 2026.