Who Owns Innospec Inc. (IOSP)?Hedge Fund & Institutional Holders

$68.40-0.43 (-0.62%)Basic MaterialsNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$2.2402219900017959e+229T

% of Float Held

1.1965618403579437e+294%

QoQ Change in Holders

+14 / -1

Price History

$68.83$82.85$96.87$110.88$124.90Sep 24Jun 25Mar 26

IOSP — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
Allspring Global Investments Holdings, LLCNew Position+2.4M+$179.8M
NORGES BANKNew Position+139K+$10.0M
PRINCIPAL FINANCIAL GROUP INCNew Position+118K+$9.0M
Bank of New York Mellon CorpNew Position+138K+$9.0M
FIRST WILSHIRE SECURITIES MANAGEMENT INCNew Position+101K+$7.7M
TEACHER RETIREMENT SYSTEM OF TEXASNew Position+84K+$6.5M
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCNew Position+88K+$6.0M
SG Americas Securities, LLCNew Position+76K+$5.8M
Moran Wealth Management, LLCNew Position+42K+$3.2M
HRT FINANCIAL LPIncreased+27K+$1.1M
State of Alaska, Department of RevenueNew Position+14K+$1.1M
Cerity Partners LLCNew Position+19K+$1.0M
Y-Intercept (Hong Kong) LtdNew Position+25K+$1.0M
Jain Global LLCNew Position+22K+$1.0M
THRIVENT FINANCIAL FOR LUTHERANSNew Position+17K+$1.0M

IOSP — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
VANGUARD GROUP INCDecreased-22K-$242.3B
FIRST TRUST ADVISORS LPDecreased-628K-$49.4B
GEODE CAPITAL MANAGEMENT, LLCDecreased-5K-$47.4B
ROYCE & ASSOCIATES LPDecreased-187K-$38.0B
BANK OF AMERICA CORP /DE/Decreased-53K-$28.9B
Qube Research & Technologies LtdDecreased-34K-$27.3B
BROWN ADVISORY INCDecreased-44K-$27.0B
JPMORGAN CHASE & CODecreased-15K-$24.7B
NORTHERN TRUST CORPDecreased-24K-$23.1B
JANUS HENDERSON GROUP PLCDecreased-107K-$19.9B
MORGAN STANLEYDecreased-10K-$19.6B
UBS Group AGDecreased-23K-$12.7B
Cubist Systematic Strategies, LLCClosed Position-154K-$11.9B
Walleye Capital LLCDecreased-47K-$11.6B
RENAISSANCE TECHNOLOGIES LLCDecreased-26K-$11.3B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1VANGUARD GROUP INC2,926,874$224.0M0.00%Share
2BlackRock, Inc.2,601,567$199.0M0.00%Share
3Allspring Global Investments Holdings, LLC2,354,535$179.6M0.29%Share
4DIMENSIONAL FUND ADVISORS LP1,117,264$85.0M0.02%Share
5VICTORY CAPITAL MANAGEMENT INC950,074$72.0M0.04%Share
6STATE STREET CORP949,038$72.0M0.00%Share
7BlackRock, Inc.694,046$53.0M0.00%Share
8MILLENNIUM MANAGEMENT LLC533,312$40.0M0.02%Share
9GEODE CAPITAL MANAGEMENT, LLC528,979$40.0M0.00%Share
10WESTWOOD HOLDINGS GROUP INC491,451$37.6M0.31%Share
11Medina Value Partners, LLC378,769$29.0M6.77%Share
12CHARLES SCHWAB INVESTMENT MANAGEMENT INC373,540$28.0M0.00%Share
13GOLDMAN SACHS GROUP INC342,694$26.0M0.00%Share
14Qube Research & Technologies Ltd320,504$24.0M0.02%Share
15ROYCE & ASSOCIATES LP305,226$23.4M0.24%Share
16BROWN ADVISORY INC301,200$23.0M0.03%Share
17D. E. Shaw & Co., Inc.275,123$21.0M0.01%Share
18Western Standard LLC268,367$20.5M9.47%Share
19AQR CAPITAL MANAGEMENT LLC263,063$20.0M0.01%Share
20JPMORGAN CHASE & CO242,911$18.0M0.00%Share
21NORTHERN TRUST CORP237,166$18.0M0.00%Share
22Nuveen, LLC202,146$15.0M0.00%Share
23Assenagon Asset Management S.A.178,204$13.6M0.02%Share
24GENDELL JEFFREY L168,970$12.9M0.22%Share
25VANGUARD GROUP INC158,986$12.2M0.00%Share
26TWO SIGMA INVESTMENTS, LP159,514$12.0M0.02%Share
27TWO SIGMA ADVISERS, LP159,200$12.0M0.02%Share
28Nuveen, LLC154,843$11.0M0.00%Share
29Nuveen, LLC145,614$11.0M0.00%Share
30SUSQUEHANNA INTERNATIONAL GROUP, LLP150,600$11.0M0.00%Call
31UBS Group AG141,832$10.9M0.00%Share
32JANUS HENDERSON GROUP PLC140,477$10.0M0.00%Share
33GOLDMAN SACHS GROUP INC137,001$10.0M0.00%Share
34BANK OF AMERICA CORP /DE/140,966$10.0M0.00%Share
35NORGES BANK139,200$10.0M0.00%Share
36VOLORIDGE INVESTMENT MANAGEMENT, LLC138,401$10.0M0.04%Share
37HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC125,062$9.6M0.03%Share
38RENAISSANCE TECHNOLOGIES LLC120,300$9.0M0.01%Share
39PRINCIPAL FINANCIAL GROUP INC117,026$9.0M0.00%Share
40GENDELL JEFFREY L116,381$8.9M0.15%Share
41BANK OF AMERICA CORP /DE/116,826$8.0M0.00%Share
42BlackRock, Inc.105,872$8.0M0.00%Share
43HRT FINANCIAL LP116,932$8.0M0.03%Share
44FIRST WILSHIRE SECURITIES MANAGEMENT INC100,574$7.7M1.94%Share
45ZWJ INVESTMENT COUNSEL INC94,535$7.2M0.26%Share
46Point72 Asset Management, L.P.95,775$7.0M0.01%Share
47Numerai GP LLC98,269$7.0M0.84%Share
48Walleye Capital LLC103,935$7.0M0.02%Share
49MORGAN STANLEY98,207$7.0M0.00%Share
50SEI INVESTMENTS CO100,995$7.0M0.01%Share

IOSP Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025259$1.8B+60
Q3 2025199$1.6T-26
Q2 2025225$1.6T-47
Q1 2025272$2.3T+25
Q4 2024247$14.3T+24
Q3 2024223$1531.1T-6
Q2 2024229$1228.0T+30
Q1 2024199$1210.1T—

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As of Q4 2025, 50 institutional investors hold IOSP (Innospec Inc.). The largest holder is VANGUARD GROUP INC with $224.0M in shares. This quarter, 14 institutions opened new positions and 1 closed their positions.

Frequently Asked Questions

How many hedge funds own IOSP?

As of Q4 2025, 50 institutional investors report holding IOSP (Innospec Inc.) in their 13F filings.

Who is the largest institutional holder of IOSP?

The largest institutional holder of IOSP is VANGUARD GROUP INC with $224.0M in shares.

Is institutional ownership of IOSP increasing or decreasing?

This quarter, 14 institutions opened new positions in IOSP and 1 closed their positions.