Who Owns IOSP?

Innospec Inc. — Institutional Ownership & 13F Holdings

$76.56

-1.12 (-1.44%)

Market Cap

$1.9B

Shares Outstanding

24,890,467

Institutional Holders

271

Total Inst. Value

$2.1B

% of Float Held

100.3%

QoQ Holder Change

+72

Institutional data as of Q1 2025

New Positions

60

Closed Positions

36

Increased

89

Decreased

87

Institutional Ownership Trend

Top 10 Institutional Holders(Q1 2025)

#FundValueShares
1BlackRock, Inc.$355.1M3,747,726
2VANGUARD GROUP INC$304.2M3,210,768
3Allspring Global Investments Holdings, LLC$227.4M2,404,825
4DIMENSIONAL FUND ADVISORS LP$109.7M1,158,017
5VICTORY CAPITAL MANAGEMENT INC$104.8M1,106,482
6STATE STREET CORP$95.8M1,011,441
7FIRST TRUST ADVISORS LP$84.5M892,153
8GEODE CAPITAL MANAGEMENT, LLC$66.8M705,135
9ROYCE & ASSOCIATES LP$61.9M653,636
10WASATCH ADVISORS LP$50.0M528,144

Biggest Buyers & Sellers This Quarter

Top Sellers

FundShares RemovedValue
WASATCH ADVISORS LP-1.1M$50.0M
Invesco Ltd.-202K$23.7M
BlackRock, Inc.-160K$355.1M
BESSEMER GROUP INC-145K$43K
ROYCE & ASSOCIATES LP-124K$61.9M

Famous Fund Managers

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Frequently Asked Questions

How many institutional investors hold IOSP?

As of Q1 2025, 271 institutional investors report holding IOSP (Innospec Inc.) in their 13F filings.

What percentage of Innospec Inc. is owned by institutions?

Institutional investors hold approximately 100.3% of Innospec Inc.'s float as reported in SEC 13F filings.

Which hedge fund owns the most IOSP?

The largest institutional holder of IOSP is BlackRock, Inc. with $355.1M in shares.

Are institutions buying or selling IOSP?

This quarter, 60 institutions opened new positions in IOSP and 36 closed their positions.

What is 13F institutional ownership?

SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.

How often is institutional ownership data updated?

13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.