INNOSPEC INC.

PublicCIK: 1054905
IOSPNASDAQ
Location

ENGLEWOOD, CO

13F Filings

Institutional Holders

INNOSPEC INC.IOSP— Latest position per institution from SEC 13F filings

15

Institutional holders

25.10M

Total shares held

2.07B

Estimated value

1.25M

Avg. position size

1

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

3.91M

Value

482.97M

Filed

Jun 30, 2024

2

BLACKROCK, INC.

CIK 2012383

Shares

3.88M

Value

283.24M

Filed

Mar 31, 2026

3

VANGUARD GROUP INC

CIK 102909

Shares

3.12M

Value

238.89M

Filed

Dec 31, 2025

4

ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC

CIK 1890906

Shares

2.32M

Value

170.45M

Filed

Mar 31, 2026

5

VANGUARD PORTFOLIO MANAGEMENT LLC

CIK 2100121

Shares

1.86M

Value

135.82M

Filed

Mar 31, 2026

6

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

1.24M

Value

90.70M

Filed

Mar 31, 2026

7

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

1.11M

Value

81.39M

Filed

Mar 31, 2026

8

STATE STREET CORP

CIK 93751

Shares

964.34K

Value

70.42M

Filed

Mar 31, 2026

9

VICTORY CAPITAL MANAGEMENT INC

CIK 1040188

Shares

864.99K

Value

63.16M

Filed

Mar 31, 2026

10

NUVEEN, LLC

CIK 1871926

Shares

643.25K

Value

46.97M

Filed

Mar 31, 2026

11

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

630.59K

Value

46.05M

Filed

Mar 31, 2026

12

TWO SIGMA INVESTMENTS, LP

CIK 1179392

Shares

593.04K

Value

43.30M

Filed

Mar 31, 2026

13

UBS GROUP AG

CIK 1610520

Shares

565.91K

Value

41.32M

Filed

Mar 31, 2026

14

WASATCH ADVISORS LP

CIK 814133

Shares

528.14K

Value

50.04M

Filed

Mar 31, 2025

15

GOLDMAN SACHS GROUP INC

CIK 886982

Shares

492.01K

Value

35.93M

Filed

Mar 31, 2026

16

WESTWOOD HOLDINGS GROUP INC

CIK 1165002

Shares

491.45K

Value

37.62M

Filed

Dec 31, 2025

17

ASSENAGON ASSET MANAGEMENT S.A.

CIK 1546007

Shares

490.88K

Value

35.84M

Filed

Mar 31, 2026

18

PACER ADVISORS, INC.

CIK 1616667

Shares

485.71K

Value

53.46M

Filed

Dec 31, 2024

19

NUVEEN ASSET MANAGEMENT, LLC

CIK 1521019

Shares

471.10K

Value

51.85M

Filed

Dec 31, 2024

20

FINANCIAL HARVEST, LLC

CIK 2052933

Shares

433.84K

Value

12.63M

Filed

Mar 31, 2025

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.