MBWM MERCANTILE BANK CORP Insider Trading

Director Sanchez buys 1,000 (1.0K) MBWM shares at $43.50; holdings rise to 3,502 (3.5K) shares

Director Nelson F Sanchez purchased 1,000 shares of MERCANTILE BANK CORP at $43.50 on 2025-10-31, increasing his holdings by 40.0% to 3,502 shares. The stock currently trades at $44.07, down 1.8% over the past 30 days and -1.3% over 90 days from the transaction date, placing it 14.9% below its 52-week high of $51.79. His prior trades at this ticker show a 20% win rate at the 90-day mark (1 of 5 prior trades were well-timed), with most prior buys generating negative 90-day returns ranging from -7.8% to -4.2%. The company trades at a P/E of 8.38 with a market cap of $716.3M and net income of $23.8M, suggesting a value-oriented profile.

Director RAMAKER DAVID B bought 1,500 shares of MBWM at $46.71 on 2025-08-18, raising stake to 15,014 shares; stock trading -9.3% from 52-week high.

Director RAMAKER DAVID B executed a $70,065.00 purchase of 1,500 shares at $46.71, growing his stake by 11.1% to 15,014 shares. His prior transaction at MBWM (a buy on 2023-04-21) was well-timed, with a 90-day return of +17.0%, indicating selective execution during favorable entry points. The current stock price of $46.98 sits -9.3% below the 52-week high of $51.79, and the company trades at a P/E of 9.38 with $22.6M in net income and a market cap of $763.4M. The timing of this purchase near the lower end of the recent range, combined with a demonstrated pattern of 100% 90-day win rate on prior open-market buys, suggests accumulation during a period when the stock has retreated from recent peaks.

Director Williams Shoran R bought 200 MBWM shares at $47.28; 0% success rate on 1 prior MBWM buy; stock down -10.9% from 52-week high.

Director Williams Shoran R purchased 200 shares of Mercantile Bank Corp at $47.28 on 2025-07-29, increasing his holdings by 3.9% to 5,266 shares. This is a modest transaction ($9,457.00 total value) in a modestly valued company trading at a P/E of 9.65. However, the insider's prior purchase of MBWM shares on 2025-01-31 experienced a 90-day return of -13.9%, establishing a 0% track record of well-timed purchases at this ticker. The current stock price of $46.14 is -10.9% from its 52-week high of $51.79, suggesting the director is buying after recent price declines, yet his prior similar action at this company did not produce positive subsequent returns.

Director Sanchez Nelson F bought 212 shares at $47.00, sold 100 at $47.31; net +112 shares to 2,216 holdings

Director Sanchez Nelson F executed 2 separate transactions on 2025-02-26: purchased 212 shares at $47.00 for $9,964.00 and sold 100 shares at $47.31 for $4,731.00, resulting in a net acquisition of 112 shares (+5.3% vs pre-transaction holdings of 2.1K shares). The net purchase price averaged approximately $47.07 per share, slightly below the current price of $48.21. Within five calendar days (2025-02-21 through 2025-02-26), Sanchez has filed five separate buy transactions at MBWM, with no measurable 90-day outcomes yet available to assess pattern. His cross-ticker track record shows 80% win rate across 12 prior buys with +15.5% average 90-day return, but those results do not apply to timing accuracy at this specific ticker where outcomes remain pending.

Director Sanchez Nelson F bought 393 shares at blended average $47.75 (two transactions, $18.8K total)

Sanchez Nelson F (Director) executed two separate purchases totaling 393 shares for $18,767.50 at Mercantile Bank Corp on 2025-02-20, raising his post-transaction holdings to 2,290 shares (20.7% increase from prior 1,897 shares). The purchases occurred at a blended average price of $47.75, above the current price of $47.33 and within the 52-week range ($33.62–$51.79). At the company level, fundamentals show a P/E of 9.54 with market cap of $763,997,499.57 ($764.0M), suggesting a low valuation environment. However, the timing signal is mixed: his cross-ticker track record shows 10 prior buys with an 80.00% win rate and average 90-day return of +15.5%, but at MBWM specifically, all 5 prior trades (including buys on 2025-02-19 and 2025-02-18) lack measurable outcomes as they occurred within the past 90 days and 0 of 0 prior buys at this ticker were well-timed at the 90-day mark. The stock has declined 3.8% over 30 days and 5.5% over 90 days from the highs, and is currently 8.6% below its 52-week high.

Director Sanchez Nelson F bought 386 shares of MBWM in 2 transactions for $18,625.50 total, raising holdings 25.5%

Sanchez Nelson F completed 2 separate purchases totaling 386 shares for $18,625.50, executed on 2025-02-18 and 2025-02-19 at a blended average price of $48.25, increasing his stake by 25.5% from 1,511 to 1,897 shares. The current price of $48.44 sits -6.5% from the 52-week high and the stock is up 3.6% over 30 days, placing this purchase slightly above recent price support. His cross-ticker track record shows 80.00% win rate with an average 90-day return of +15.5% on prior buys, though his 5 prior trades at MBWM remain too recent to evaluate outcome (all filed between 2025-01-29 and 2025-02-20). The company's P/E of 9.77 and $781.9M market cap provide fundamental context, but without a FLAG indicating scheduled trading, the frequency of purchases within this narrow 3-week window merits monitoring to clarify whether these represent discretionary conviction or part of an ongoing plan.

Director MacDonald buys 511 MBWM shares for $24,996.43; holdings surge 42.1% to 1,725 shares

MacDonald Richard D, a director of Mercantile Bank Corp, purchased 511 shares at $48.92 on 2025-02-19, increasing his post-transaction holdings to 1,725 shares—a 42.1% increase from his prior stake of 1,214 shares. At a company market cap of $781,915,040.76 and P/E of 9.77, this discretionary purchase of $24,996.43 represents a meaningful equity commitment by a board member. The current price of $48.44 sits 6.5% below the 52-week high of $51.79, placing the transaction near recent ranges with a modest 30-day gain of 3.6%, though the stock is down 3.9% over 90 days. The purchase occurred in the open market without indication of scheduling or plan constraints, reflecting an active decision by an insider with governance oversight.

Director Sanchez Nelson F bought 376 shares at blended $47.69 over 2 days, raising holdings 33.1% to 1,511 shares

Sanchez Nelson F, a Director, executed 2 purchases totaling 376 shares for $17,932.93 on 2025-02-03 and 2025-02-04 at prices of $47.89 and $47.50, respectively. This transaction increased his holdings by 33.1% from 1,135 to 1,511 shares, representing a substantial accumulation within a two-day window. His prior trades at MBWM demonstrate a strong timing pattern: 4 of 4 prior measured buys were well-timed at the 90-day mark, with returns ranging from +3.2% to +18.2%, all positive. The current price of $49.30 is only 3.6% below the 52-week high of $51.16, and the stock has appreciated +13.1% over the last 30 days, suggesting recent upward momentum. The company's valuation metrics are relatively modest (P/E: 9.94, market cap: $795.8M, net income: $19.6M), and the director's historical track record across all tickers shows an 80% win rate at 90 days with average gains of +15.5%. This filing presents a director significantly increasing exposure to MBWM at elevated valuations following a strong recent rally.

Director Williams Shoran R bought 123 MBWM shares at $49.28 on 2025-01-31; holds 4,147 shares post-trade

Williams Shoran R, a MERCANTILE BANK CORP director, purchased 123 shares at $49.28 on 2025-01-31, increasing his stake to 4,147 shares from 4,024 shares. The purchase price of $49.28 is within the 52-week range of $33.62–$51.16, near recent resistance. At the current price of $48.67, the purchase sits just below cost, with the stock up 10.2% over the past 30 days but down 4.9% from its 52-week high. The company trades at a P/E of 9.81 with a $785.6M market cap and $19.6M net income. The transaction is modest in absolute terms ($6.1K) and represents a +3.1% increase in the director's pre-transaction holdings, suggesting routine portfolio activity rather than a major conviction signal.

Director Nelson Sanchez buys 103 MBWM shares at $48.50; prior 4 of 5 buys at ticker well-timed with 90d returns averaging +19.6%–+19.8%.

Director Nelson Sanchez purchased 103 shares at $48.50 on 2025-01-29, bringing his holdings to 1,135 shares (+10.0% vs pre-transaction). His prior four buys at MBWM (June 2024) were well-timed, with 90-day returns of +19.8%, +18.7%, +19.7%, and +19.6%, though a May trade showed -3.6% / -0.3% over the same period. Current price of $48.75 is -4.7% from the 52-week high of $51.16, placing the stock within its recent trading range. The timing pattern at this ticker—where the majority of prior purchases preceded substantial gains—provides a factual reference point for this acquisition, though forward performance remains uncertain.