| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director
1 company
Milton C Blackmore is Director at IOSP. Milton C Blackmore's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $879K at current prices.
Historically, Milton C Blackmore's trades have earned a middling insider score of 57/100 across 7 rated trades. Over a 12-month horizon, 60.0% of those trades were profitable, with an average 12-month return of +8.8%.
The IOSP filings lean toward selling, a net 7,737 shares.
Milton C Blackmore has 26 Form 4 filings on record from February 2015 to February 2026, all as Director at Innospec (IOSP), 2015–2026.
The 49 reported transactions were 15 option or other derivative awards, 13 open-market sales, 12 option exercises and 6 stock awards, plus smaller numbers of other types.
Counted by filing, the open-market trades come to 1 purchase worth about $24K and 12 sales worth about $739K.
The only open-market purchase was 442 shares of IOSP at an average $54.75 on September 7, 2017, about $24K.
The largest open-market sale was 1,035 shares of IOSP at an average $122.92 on November 13, 2024, about $127K. Twelve months later IOSP was down 39%.
None of the 5 sales since April 2023 was marked as made under a Rule 10b5-1 trading plan.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb 27, 2026 | IOSP Innospec Inc. | Director | Sell | 594 | $76.56 | $45,474.38 | -5.3% | +7.5% | - | |
| Feb 20, 2026 | IOSP Innospec Inc. | Director | Sale+OE | 1,030 | $81.84 | $84,296.13 | -9.7% | -3.1% | - | |
| Feb 21, 2025 | IOSP Innospec Inc. | Director | Sell | 652 | $103.30 | $67,352.38 | -7.2% | -16.7% | -21.4% | |
| Nov 13, 2024 | IOSP Innospec Inc. | Director | Sale+OE | 1,035 | $122.92 | $127,222.20 | -10.3% | -8.4% | -38.6% | |
| Feb 22, 2024 | IOSP Innospec Inc. | Director | Sell | 601 | $122.07 | $73,365.75 | -6.8% | +5.0% | -16.6% | |
| Feb 25, 2022 | IOSP Innospec Inc. | Director | Sale+OE | 740 | $96.77 | $71,612.76 | -9.3% | +6.2% | +14.3% | |
| Nov 10, 2021 | IOSP Innospec Inc. | Director | Sale+OE | 293 | $93.70 | $27,454.10 | -4.3% | +0.2% | +18.5% | |
| Feb 24, 2020 | IOSP Innospec Inc. | Director | Sale+OE | 283 | $91.75 | $25,964.17 | -4.5% | - | - | |
| Feb 25, 2019 | IOSP Innospec Inc. | Director | Sale+OE | 441 | $81.62 | $35,995.30 | -6.8% | - | - | |
| Jun 1, 2018 | IOSP Innospec Inc. | Director | Sale+OE | 444 | $76.83 | $34,111.99 | -6.9% | - | - |