Security key
45768S105
- Type / Class
- Equity / Common Stock
- Shares outstanding
- 24,907,931
- Total 13F shares
- 23,963,379
- Share change
- -111,275
- Total reported value
- $1,848,287,053
- Put/Call ratio
- 2.7%
- Price per share
- $77.16
- Number of holders
- 264
- Value change
- -$12,042,822
- Number of buys
- 135
- Number of sells
- 121
Report period
Q3 2025
Institutions
264
Top holders
10
IOSP full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2025
Previous quarter: Q2 2025
INNOSPEC INC. SEC filings
INNOSPEC INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 45768S105
Recent filing periods:
Ownership snapshot
Top shareholders of IOSP - INNOSPEC INC. - Common Stock (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.
Lead holder
BlackRock, Inc.
13D/G signal
BlackRock, Inc.
Evidence rows
50
Latest as of
30 Jun 2025
13D/G
13F
Lead comparable stake: 15%
13D/G row: BlackRock, Inc.
Showing first 8 of 50 holder rows.
Open remaining rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
15%
|
$330,981,773
3,681,666 shares
|
$0 | 31 Mar 2025 |
| WASATCH ADVISORS LP |
13D/G
|
2.1%
|
$47,480,146
528,144 shares
|
-$94,572,193 | 31 Mar 2025 |
| VANGUARD GROUP INC |
13F
Company
|
13%
|
$265,971,708
3,162,941 shares
|
— | 30 Jun 2025 |
| Allspring Global Investments Holdings, LLC |
13F
Company
|
10%
|
$216,210,918
2,483,185 shares
|
— | 30 Jun 2025 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
4.7%
|
$98,295,933
1,168,925 shares
|
— | 30 Jun 2025 |
| STATE STREET CORP |
13F
Company
|
3.9%
|
$81,586,220
970,225 shares
|
— | 30 Jun 2025 |
| VICTORY CAPITAL MANAGEMENT INC |
13F
Company
|
3.8%
|
$80,599,088
958,486 shares
|
— | 30 Jun 2025 |
| FIRST TRUST ADVISORS LP |
13F
Company
|
3.2%
|
$67,482,571
802,504 shares
|
— | 30 Jun 2025 |
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 Q3 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
264
Shares
23,963,379
Rows loaded
265
| Investor | Option | Weight % | Change % | Reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* 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. An asterisk next to the price means the price is likely invalid.
Compare Q3 2025 vs Q2 2025 Across Filers
Q2 2025 holders
262
Q3 2025 holders
264
Holder diff
2
| Investor | Q2 2025 Shares | Q3 2025 Shares | Share Diff | Share Chg % | Q2 2025 value | Q3 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend