Security key
45768S105
- Security type / class
- Equity / Common Stock SH
- Total 13F shares
- 23,954,256
- Total 13F value
- $2,464,210,922
- Share change
- -117,710
- Put/Call ratio
- 1060%
- SEC-reported price per share
- $102.86
- Number of holders
- 221
- Value change
- -$11,084,067
- Number of buys
- 125
- Number of sells
- 72
- Shares outstanding
- 24,577,545
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2022
Institutions
221
Top holders
10
IOSP full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
INNOSPEC INC. SEC filings
INNOSPEC INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 45768S105
Recent filing periods:
Ownership snapshot
Top reported holders of IOSP - INNOSPEC INC. - Common Stock SH (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2022
13F
Lead comparable stake: 16%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 16%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
16%
VANGUARD GROUP INC
12%
Allspring Global Investments Hold...
9.8%
WASATCH ADVISORS LP
6.5%
DIMENSIONAL FUND ADVISORS LP
4.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
16%
|
$338,189,000
3,947,599 shares
|
— | 30 Sep 2022 |
| VANGUARD GROUP INC |
13F
Company
|
12%
|
$243,847,000
2,846,362 shares
|
— | 30 Sep 2022 |
| Allspring Global Investments Holdings, LLC |
13F
Company
|
9.8%
|
$206,378,000
2,409,000 shares
|
— | 30 Sep 2022 |
| WASATCH ADVISORS LP |
13F
Company
|
6.5%
|
$136,775,000
1,596,529 shares
|
— | 30 Sep 2022 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
4.9%
|
$102,565,000
1,197,212 shares
|
— | 30 Sep 2022 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
4.3%
|
$89,755,000
1,047,688 shares
|
— | 30 Sep 2022 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2022
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
221
Shares
23,954,256
Rows available
221
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2022 vs Q3 2022 Across Filers
Q3 2022 holders
185
Q4 2022 holders
221
Holder diff
36
| Investor | Q3 2022 Shares | Q4 2022 Shares | Share Diff | Share Chg % | Q3 2022 value | Q4 2022 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend