Innospec Ownership | Who Owns Innospec?


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Innospec Ownership Summary


Innospec is owned by 95.83% institutional investors, 1.27% insiders, and 2.91% retail investors. Blackrock is the largest institutional shareholder, holding 15.70% of IOSP shares. Allspring Special Small Cap Value A is the top mutual fund, with 6.48% of its assets in Innospec shares.

IOSP Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockInnospec95.83%1.27%2.91%
SectorBasic Materials Stocks 36.61%12.69%50.70%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock3.91M15.70%$482.97M
Blackrock funding, inc. /de3.63M14.56%$280.32M
Vanguard group3.14M12.60%$242.55M
Allspring global investments2.39M9.58%$183.76M
Dimensional fund advisors lp1.17M4.68%$90.04M
State street929.12K3.72%$71.69M
Victory capital management835.89K3.35%$64.50M
First trust advisors lp640.56K2.57%$49.43M
Geode capital management614.21K2.46%$47.40M
Royce & associates lp492.61K1.97%$38.01M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Medina value partners235.96K4.25%$18.21M
Qsv equity investors12.16K0.96%$938.65K
Numerai gp81.54K0.89%$6.29M
Cm management12.00K0.77%$925.92M
Semanteon capital management, lp7.32K0.71%$565.12K
Western standard27.00K0.62%$2.08M
Round hill asset management11.97K0.61%$923.91K
Royce & associates lp492.61K0.38%$38.01M
Entrypoint capital10.69K0.32%$824.46K
Allspring global investments2.39M0.29%$183.76M

Top Buyers

HolderShares% AssetsChange
Medina value partners235.96K4.25%235.96K
Goldman sachs group282.64K0.00%177.97K
Millennium management170.41K0.01%168.35K
Nuveen411.28K0.01%115.27K
Walleye capital150.81K0.04%110.69K

Top Sellers

HolderShares% AssetsChange
Wasatch advisors lp---528.14K
Pacer advisors---485.71K
Champlain investment partners---223.39K
First trust advisors lp640.56K0.04%-161.94K
Invesco80.84K0.00%-142.92K

New Positions

HolderShares% AssetsChangeValue
Medina value partners235.96K4.25%235.96K$18.21M
Norges bank102.78K0.00%102.78K$11.31M
Western standard27.00K0.62%27.00K$2.08M
Canada pension plan investment board26.00K0.00%26.00K$2.01M
Jacobs levy equity management12.82K0.01%12.82K$1.58M

Sold Out

HolderChange
Tfc financial management-1.00
Tfo-tdc-1.00
Financial gravity asset management-2.00
Claris advisors, llc / mo /-2.00
Innealta capital-2.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025255-2.30%23,912,768-0.63%951.03%132-5.71%949.30%
Jun 30, 2025256-6.91%24,009,943-1.59%961.01%138-2.13%83-8.79%
Mar 31, 20254-98.48%319,463-98.68%10.01%4-96.92%--100.00%
Dec 31, 2024248-5.34%23,103,575-3.76%921.00%1221.67%90-13.46%
Sep 30, 2024259-1.89%23,997,2920.04%961.04%117-18.18%10418.18%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Allspring Special Small Cap Value A1.61M6.48%-
iShares Core S&P Small-Cap ETF1.48M5.98%-
Vanguard Total Stock Mkt Idx Inv787.43K3.17%-16.81K
Vanguard US Total Market Shares ETF791.22K3.15%864.00
Victory Sycamore Small Company Opp R690.00K2.76%-130.00K
Victory Small Cap Value CIT (Net 75)685.00K2.75%19.00K
Wasatch Core Growth639.99K2.57%-78.52K
Vanguard Small Cap Index605.35K2.44%-4.21K
iShares Russell 2000 ETF597.74K2.41%-
First Trust Value Line® Dividend ETF454.63K1.83%115.00

Recent Insider Transactions


DateNameRoleActivityValue
Nov 14, 2025PARRETTE LESLIE J-Buy$25.19K
May 13, 2025PARRETTE LESLIE J-Sell$24.46K
May 13, 2025PARRETTE LESLIE J-Sell$15.96K
Mar 03, 2025Cleminson Ian EVP & CFOSell$431.68K
Feb 24, 2025BARNES CORBIN SVP, Corporate Dev and IRSell$61.63K

Insider Transactions Trends


DateBuySell
2025 Q2-2
2025 Q1-7
2024 Q4-4
2024 Q314
2024 Q211

IOSP Ownership FAQ


Who owns the most shares of Innospec?

Innospec’s largest shareholders are Blackrock (3.91M shares, 15.70%), Blackrock funding, inc. /de (3.63M shares, 14.56%), and Vanguard group (3.14M shares, 12.60%). Together, they hold 42.85% of Innospec’s total shares outstanding.

Does Blackrock own Innospec?

Yes, BlackRock owns 15.70% of Innospec, totaling 3.91M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 482.97M$. In the last quarter, BlackRock decreased its holdings by -18.226K shares, a -0.46% change.

Who is Innospec’s biggest shareholder by percentage of total assets invested?

Medina value partners is Innospec’s biggest shareholder by percentage of total assets invested, with 4.25% of its assets in 235.96K Innospec shares, valued at 18.21M$.

Who is the top mutual fund holder of Innospec shares?

Allspring Special Small Cap Value A is the top mutual fund holder of Innospec shares, with 6.48% of its total shares outstanding invested in 1.61M Innospec shares.

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