Mookerji Suman B. 4

What Happened

• Suman B. Mookerji, Senior Vice President and Chief Financial Officer of Ducommun (DCO), exercised options and received settlement of performance/restricted stock units, with related share-withholdings for taxes and an open-market sale.
• Transactions reported: received 14,315 and 3,361 shares from awards (no cost), exercised options for 4,700 shares at $42.25 (cost $198,575), and disposed of shares to cover taxes (7,695; 1,361; 3,186) and sold 14,709 shares in the open market for $1,974,095 (weighted average $134.21).

Key Details

• Dates: primary activity on March 4–5, 2026; Form 4 filed March 6, 2026.
• Prices and values reported (selected):
  • Open-market sale: 14,709 shares @ weighted avg $134.21 = $1,974,095 (trades ranged $127.00–$138.50).
  • Tax-withholding/share reductions: 7,695 shares @ $139.45 = $1,073,068; 3,186 shares @ $139.45 = $444,288; 1,361 shares @ $130.19 = $177,189.
  • Option exercise: 4,700 shares @ $42.25 = $198,575.
• Net share change from these transactions: +125 shares (27,076 acquired vs. 26,951 disposed). The filing does not state total post-transaction holdings explicitly.
• Notable footnotes:
  • F1/F3: 14,315 performance stock units settled (granted May 8, 2023) upon satisfaction of performance metrics; a portion of shares were withheld for taxes.
  • F4: 2,532 restricted stock units vested March 5, 2026, with shares withheld for taxes.
  • F5: Open-market sale executed in multiple trades (range provided); weighted average price reported.
  • F6/F7: The exercised option is under Ducommun’s Stock Incentive Plan (vested in one-third increments 2020–2022).
• Filing timeliness: filed March 6, 2026 (transactions occurred March 4–5); filing appears within the typical Form 4 reporting window.

Context

• This package of activity is largely routine compensation settlement and option exercise with shares surrendered to cover tax obligations and an open-market sale of shares (~$2.0M). The CFO did exercise options and receive award shares (acquisitions), but also sold a substantial block in the market and had shares withheld for taxes. For retail investors, purchases (net cash buys) are often more informative; here the net effect was essentially neutral (+125 shares), with significant sale proceeds reported.