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IOSP INNOSPEC INC. Insider Trading

3 filings analyzed · Latest 2025-11-17
Insider buys
2
Insider sells
1
Unique insiders
2
Direction
Net buying

Historically, medium-priority insider buys have outperformed the S&P 500 by a median ~1% over the 30 days after filing — the edge is concentrated in that first month (n ≈ 7,520, 2022-2026). Past results don't predict the future. How we measure this ↗

November 2025
2025-11-17
medium
340 shares
$25,191
@ $74.09
Significance 4/10

Director Leslie J Parrette buys 340 IOSP shares at $74.09; stock down 40.8% from 52-week high.

Director Leslie J Parrette purchased 340 shares of Innospec Inc. at $74.09 on 2025-11-14, increasing holdings by 6.2% to 5,837 shares. The transaction occurs while the stock trades at $72.23, down 40.8% from its 52-week high of $121.93 and down 14.2% over the prior 90 days. Across his same-ticker history at IOSP, Parrette's prior four purchases show a 75% win rate at the 90-day mark (3 of 4 buys followed by positive returns), with returns ranging from +0.7% to +17.5% on the successful trades. However, the company's fundamentals show stress: annual revenue declined 5.3% year-over-year, and the P/E of 50.51 remains elevated despite the recent stock decline, suggesting limited margin of safety at current valuation.

August 2024
2024-08-27
medium
VP & CFO
10,000 shares
$1,139,889
@ $113.99
Significance 4/10

IOSP VP & CFO Cleminson Ian sold 10,000 shares over 3 days (Aug 23-26) for $1.1M at blended avg $113.99

Ian Cleminson, VP & CFO of Innospec, sold 10,000 shares (43.5% of pre-transaction holdings) across 4 separate sales totaling $1,139,889.06 between August 23-26, 2024. The blended average price of $113.99 compares to a current price of $113.89, with the stock down 12.5% over the prior 30 days and down 13.4% from its 52-week high of $131.58. His single prior sale at IOSP in February 2024 showed a 90-day return of 5.1%, indicating the stock rose after that sale; this sale similarly occurred as the stock has declined recently. Without a 10b5-1 plan FLAG, the timing pattern at this ticker remains that 0 of 1 prior sells were well-timed at the 90-day mark. The company's fundamentals show flat annual revenue growth (-0.8%) and a P/E of 18.98 on $2.8B market cap.

2024-08-14
low
143 shares
$15,135
@ $105.84
Significance 5/10

Director Leslie J Parrette bought 143 IOSP shares at $105.84 on 2024-08-13, +3.1% of holdings; stock down 18.4% from 52-week high.

Director Parrette purchased 143 shares at $105.84, increasing holdings by 3.1% to 4,734 shares. The timing of this buy merits scrutiny: the prior buy at this ticker on 2024-05-16 returned -18.4% over 90 days, and the current stock is already down 18.4% from its 52-week high of $131.58 while also declining 14.4% over the last 30 days. Among his three prior IOSP trades, two were well-timed at the 90-day mark (2024-02-22 and 2023-05-10 both delivered positive 90-day returns), but the most recent buy (2024-05-16) suffered a sharp decline. The company fundamentals remain modest—revenue growth is flat at -0.8% year-over-year with a P/E of 17.90—and the position size remains small relative to the director's prior accumulation pattern. This transaction occurs against a backdrop of near-term weakness and provides limited material signal about conviction given the mixed outcome history at this specific ticker.

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