Weichai America Corp.

10% owner Weichai America sells 79,839 shares ($7.5M) across 4 transactions at $91.72–$94.33; retains 10.6M shares post-sale

Weichai America, a 10% shareholder in PSIX, executed 4 separate open-market sales on 2025-09-11, selling 79,839 shares (79.8K shares) totaling $7,461,416.78 ($7.5M) at prices ranging from $91.72 to $94.33, with a blended average of $93.46. The reduction represents -0.7% of pre-transaction holdings, leaving the filer with 10,599,759 shares (10.60M shares) post-sale. PSIX trades at $95.52 currently, +11.5% over the prior 30 days and +81.1% over 90 days, placing the stock at -4.2% from its 52-week high of $99.70. The sale occurred one day after 5 prior sell transactions by the same filer at this ticker (2025-09-10), establishing a pattern of sequential divestitures. Weichai America's cross-ticker track record shows 20 prior sells across all tickers; no outcome measurement is yet available for the 5 same-ticker sales from 2025-09-10 or for this 2025-09-11 filing.

10% owner Weichai America sells 36,554 shares (36.6K) at $90.28–$95.20 for $3.4M on 2025-09-10

Weichai America, holding 10.68M shares post-transaction, executed 6 separate sales totaling 36,554 shares for $3,378,488.21 at a blended average price of $92.42 on 2025-09-10. This represents a -0.3% reduction in the filer's holdings. The transaction occurred while the stock trades near its 52-week high of $99.70 (currently $94.41, or -5.3% from peak) and follows strong momentum: the stock is +4.4% over 30 days and +89.1% over 90 days. The filer's cross-ticker track record shows 20 prior sells with no measurable timing pattern; at this specific ticker (PSIX), 5 prior trades have been recorded, with recent activity on 2025-09-11 and 2025-08-26, none yet measurable in outcome. Fundamentally, PSIX reports revenue of $191,907,000.00 and net income of $51,212,000.00 with a P/E of 19.59, suggesting the company is profitable and reasonably valued; annual revenue growth stands at +3.7%.

Weichai America (10% owner) sold 94,047 shares of PSIX for $7.8M across 10 tranches on 2025-08-26, blended at $83.28.

A substantial liquidation by Weichai America, the 10% beneficial owner of Power Solutions International, consisting of 10 separate sales totaling 94,047 shares for $7,832,203.80 executed on a single day. The tranches ranged from $80.66 to $89.00 per share, with a blended average of $83.28, representing a 0.9% reduction in the filer's post-transaction holdings of 10.72M shares. This filing follows a series of five prior sales by the same filer on 2025-08-25 (the preceding day), suggesting a coordinated liquidation sequence. The current stock price of $84.90 sits 14.8% below the 52-week high of $99.70, despite a 90-day gain of +100.4%, indicating the filer is exiting during a period of elevated valuation relative to recent lows but below recent peaks. The company's fundamentals remain solid—$191.9M in quarterly revenue, $51.2M net income, and a 17.61 P/E—but the concentration and timing of large share dispositions by a major shareholder warrant investor attention to any broader liquidity or strategic-intent signals.

Weichai America (10% owner) sold 51,426 shares for $4.7M at blended $91.00; stock now $81.46, -18.3% from 52-week high

Weichai America, a 10% holder of PSIX, executed 6 separate sales totaling 51,426 shares for $4,679,926.61 on 2025-08-25, reducing holdings by 0.5% to 10,810,199 shares. The sales occurred at prices ranging from $88.78 to $93.18, with a blended average price of $91.00, while the current price is $81.46, representing an 18.3% decline from the 52-week high of $99.70. This substantial transaction by a major stakeholder warrants close examination of the timing relative to recent price action and whether material events preceded or should be expected to follow the sale.

10% owner Weichai America Corp. sells 87,210 shares at blended avg $88.28 for $7.7M on 2025-08-22

Weichai America Corp., a 10% owner of POWER SOLUTIONS INTERNATIONAL, INC., executed 11 separate sales totaling 87,210 shares for $7,698,956.97 on 2025-08-22, reducing its holdings from 10,948,835 shares to 10,861,625 shares (-0.8%). The sales were executed across a price range of $81.57 to $91.20, with a blended average of $88.28. The current stock price of $82.74 is 17.0% below the 52-week high of $99.70 and 8.6% lower than 30 days ago, indicating the stock has declined significantly since these sales. Weichai maintains substantial ownership post-transaction and the company shows solid fundamentals (P/E of 17.17, revenue growth of 3.7%, net income of $51.2M), but the magnitude of the sale and the subsequent price decline warrant investor attention to whether this represents a material shift in major shareholder positioning.

Weichai America (10% owner) sells 42,314 shares at $80.41–$83.26 for $3.5M; retains 10.95M shares post-transaction

Weichai America Corp., holding 10% of PSIX, conducted 4 separate sales totaling 42,314 shares for $3,481,021.61 on 2025-08-21, with transaction prices ranging from $80.41 to $83.26 and a blended average of $82.27. The sale represents a 0.4% reduction in the filer's pre-transaction holdings of 10,991,149 shares, leaving 10.95M shares post-transaction. At the current price of $88.47, PSIX is down 2.3% over 30 days but up 115.9% over 90 days from a 52-week low of $16.11, suggesting the stock has appreciated significantly. The filer's cross-ticker track record shows 20 prior sells; timing outcomes for this sale cannot yet be measured due to the recent filing date. PSIX fundamentals show revenue of $191,907,000 (latest quarter) with net income of $51,212,000 and an 18.35 P/E, indicating profitability in a $2.0B market-cap company.

10% Owner Weichai America sells 15,802 shares at $80.50 avg for $1.27M, retains 10.99M shares at PSIX

Weichai America Corp., a 10% shareholder in POWER SOLUTIONS INTERNATIONAL, INC., executed two separate sales on 2025-08-20, selling 15,797 shares at $80.50 and 5 shares at $81.00, totaling 15,802 shares for $1,272,014.53 at a blended average price of $80.50. This represents a -0.1% reduction of pre-transaction holdings, leaving the insider with 10.99M shares post-transaction. The current price of $91.26 stands -8.5% from the 52-week high of $99.70, and the stock has appreciated +135.8% over the prior 90 days. The transaction occurred at prices ($80.50–$81.00) that are $10.76 below the current market level, suggesting the insider sold into relative strength within the stock's recent rally. No forward-looking timing characterization can be drawn from prior same-ticker trades at PSIX, as measurable 90-day outcomes are not yet available for any of the five prior trades at this ticker.

Weichai America (10% owner) sold 79,670 shares ($6.5M) across 5 transactions on 2025-08-19 at blended $81.08, retaining 11.01M shares (down 0.7%)

Weichai America executed a $6,459,803.65 reduction across 5 separate sales on 2025-08-19, disposing of 79,670 shares at prices ranging from $80.24 to $84.32. The shareholder retains 11,006,951 shares post-transaction, representing a modest 0.7% reduction in position size. The sales occurred while PSIX traded near its 52-week high of $99.70 (current price $82.40, -17.4% from peak), though the stock has appreciated 112.9% over 90 days. The company demonstrates solid fundamentals with annual revenue growth of 3.7%, a P/E of 17.10, and net income of $51,212,000.00 on $191,907,000.00 revenue in the latest quarter. As a 10% owner conducting a partial stake reduction, this represents a measured capital reallocation rather than a full liquidation.

Weichai America (10% owner) sells 125,220 shares at $80.43–$89.16 for $10.6M, reducing stake to 11.09M shares.

Weichai America executed 10 separate sales totaling 125,220 shares for $10,645,177.06 on 2025-08-18, with prices ranging from $80.43 to $89.16 and a blended average of $85.01. The sale reduces Weichai's holdings from 11,211,841 shares to 11,086,621 shares (a -1.1% net change), maintaining a substantial 10% ownership stake. The transaction occurred when PSIX traded at a blended price near the transaction average, but the current price of $80.73 is now -19.0% from the 52-week high and -8.1% over the past 30 days, representing a significant pullback since the sale date. Weichai's prior selling history at PSIX spans recent dates (2025-08-19 and 2025-08-20), indicating a sustained reduction pattern, though outcomes from those recent trades are not yet measurable; the cross-ticker track record shows 20 prior sells with no prior well-timed outcomes at the 90-day mark.

Weichai America Corp. (10% owner) sold 116,137 shares at avg $83.16 in 7 transactions totaling $9.7M on 2025-08-15

Weichai America Corp., a 10% owner of POWER SOLUTIONS INTERNATIONAL, executed 7 separate sales totaling 116,137 shares for $9,658,002.72 on 2025-08-15, reducing holdings by 1.0% to 11,211,841 shares post-transaction. The blended average price of $83.16 significantly exceeds the current price of $79.94, representing a 19.8% premium to the 52-week high—a marked price point relative to historical context. The company's fundamentals remain solid with a P/E of 16.59, latest quarterly revenue of $191,907,000.00, net income of $51,212,000.00, and 3.7% annual revenue growth; however, the 30-day price decline of 11.2% contrasts with a robust 90-day gain of 118.4%, suggesting recent momentum deterioration. This large reduction by a core long-term holder merits scrutiny into the timing and motivation, particularly given the magnitude and concentrated execution on a single date.