Innospec
IOSP
97.42
-1.13
-1.15%
Innospec
US · IOSP
#2663 by market cap
Listed 1970
97.42
-1.13
-1.15%
Live - 5344 symbols - heartbeat 59s ago
· 2026-10-08 04:29
Pre-market
97.39
-0.03%
After-hours
97.42
0.00%
- Market cap
- 2.40B
- P/E (TTM)i
- 19.88
- P/Bi
- 1.79
- EPSi
- 4.67
- Div yieldi
- 1.84%
- 52W posi
- 91%
Reader sentiment
Are you bullish or bearish on IOSP?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Accumulating
- The number of reporting institutions decreased by 1 in the most recent period (2026/Q3).
- Total institutional ownership rose 0.2 percentage points.
Institutional ownership
- Held by institutions
- 101.44% +0.18pp
- Institutions
- 327 -1
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions added shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund84.31%
Hedge Fund11.02%
Public Company2.39%
Government Pension Fund1.48%
Insurance Company1.32%
Individual/Insider1.21%
Private Company0.85%
Top holders as of 2026-06-30
BlackRock
17.79% · 4.38M sh
Allspring Global Investments, LLC
7.68% · 1.89M sh
Vanguard Portfolio Management, LLC
7.65% · 1.88M sh
Dimensional Fund Advisors
5.30% · 1.31M sh
Vanguard Capital Management, LLC
5.16% · 1.27M sh
State Street Global Advisors
4.04% · 996.03K sh
Geode Capital Management, LLC
2.71% · 666.59K sh
Victory Capital Management Inc.
2.68% · 660.11K sh
Teachers Insurance and Annuity Association-College Retirement Equities Fund
2.32% · 570.44K sh
Two Sigma Investments, LP
2.31% · 568.71K sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 33 buys · 17 sells
| Name | Role | Stake |
|---|---|---|
| Patrick Williams | Chief Executive Officer | 0.75% |
| Ian McRobbie | Chief Technology Officer and Senior VP of Research & Technology | 0.15% |
| Philip Boon | Chief Operating Officer | 0.07% |
| Ian Cleminson | Chief Financial Officer | 0.04% |
| David Jones | Senior VP, General Counsel, Chief Compliance Officer & Corporate Secretary | 0.03% |
| Corbin Barnes | Senior Vice President of Corporate Development & Investor Relations | 0.03% |
| Milton Blackmore | Independent Non-Executive Chairperson | 0.03% |
| Lawrence Padfield | Independent Non-Executive Director | 0.02% |
| Hardy Griffin | -- | 0.02% |
| David Landless | Independent Non-Executive Director | 0.02% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-30 | Ian McRobbie | Chief Technology Officer and Senior VP of Research & Technology | Other Derivative Acquisition | +3,164 | -- |
| 2026-09-30 | Patrick Williams | Chief Executive Officer | Other Derivative Acquisition | +22,203 | -- |
| 2026-09-30 | Ian Cleminson | Chief Financial Officer | Other Derivative Acquisition | +4,792 | -- |
| 2026-09-30 | David Jones | Senior VP, General Counsel, Chief Compliance Officer & Corporate Secretary | Other Derivative Acquisition | +3,188 | -- |
| 2026-09-30 | Corbin Barnes | Senior Vice President of Corporate Development & Investor Relations | Other Derivative Acquisition | +2,642 | -- |
| 2026-09-30 | Hardy Griffin | -- | Other Derivative Acquisition | +2,685 | -- |
| 2026-03-02 | David Jones | Senior VP, General Counsel, Chief Compliance Officer & Corporate Secretary | Open Market Disposition | -1,028 | $75.64 |
| 2026-02-26 | Claudia Poccia | Independent Non-Executive Director | Open Market Disposition | -119 | $76.30–76.79 |
| 2026-02-26 | David Landless | Independent Non-Executive Director | Open Market Disposition | -594 | $76.30–76.79 |
| 2026-02-26 | Patrick Williams | Chief Executive Officer | Sale to Issuer | -7,966 | $78.34 |
| 2026-02-26 | Ian Cleminson | Chief Financial Officer | Open Market Disposition | -2,380 | $76.30–76.79 |
| 2026-02-26 | Lawrence Padfield | Independent Non-Executive Director | Open Market Disposition | -594 | $76.30–76.79 |
| 2026-02-26 | Milton Blackmore | Independent Non-Executive Chairperson | Open Market Disposition | -594 | $76.30–76.79 |
| 2026-02-26 | David Jones | Senior VP, General Counsel, Chief Compliance Officer & Corporate Secretary | Sale to Issuer | -875 | $78.34 |
| 2026-02-26 | Corbin Barnes | Senior Vice President of Corporate Development & Investor Relations | Sale to Issuer | -166 | $78.34 |
| 2026-02-26 | Hardy Griffin | -- | Sale to Issuer | -401 | $78.34 |
| 2026-02-22 | Leslie Parrette | Independent Non-Executive Director | Other Acquisition | +1,539 | -- |
| 2026-02-22 | Ian McRobbie | Chief Technology Officer and Senior VP of Research & Technology | Other Derivative Acquisition | +2,228 | -- |
| 2026-02-22 | Claudia Poccia | Independent Non-Executive Director | Other Acquisition | +1,539 | -- |
| 2026-02-22 | David Landless | Independent Non-Executive Director | Other Acquisition | +1,539 | -- |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 04:29:19 · For reference only, not investment advice and not tailored to your situation.