Mookerji Suman B. 4

4 · DUCOMMUN INC /DE/ · Filed Mar 6, 2026

AI-generated summary of this filing

Updated Mar 6, 2026

Ducommun (DCO) CFO Suman Mookerji Exercises Options and Sells Shares

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.

Form 4

Period: 2026-03-04

S.V.P., CFO

Transactions

Award
Common Stock
[F1][F2]
2026-03-04+14,315→ 56,074 total
Tax Payment
Common Stock
[F3]
2026-03-04$139.45/sh−7,695$1,073,068→ 48,379 total
Award
Common Stock
2026-03-04+3,361→ 51,740 total
Tax Payment
Common Stock
[F4]
2026-03-05$130.19/sh−1,361$177,189→ 50,379 total
Exercise/Conversion
Common Stock
2026-03-05$42.25/sh+4,700$198,575→ 55,079 total
Tax Payment
Common Stock
2026-03-05$139.45/sh−3,186$444,288→ 51,893 total
Sale
Common Stock
[F5]
2026-03-04$134.21/sh−14,709$1,974,095→ 37,184 total
Exercise/Conversion
Option - Right to Purchase
[F6][F7]
2026-03-05+4,700→ 51,893 total
Exercise: $42.25From: 2022-06-17Exp: 2029-06-17→ Common Stock (1,514 underlying)

Footnotes (7)

[F1]Acquired upon the settlement of performance stock units granted on May 8, 2023 under the Ducommun Incorporated Stock Incentive Plan as a result of the satisfaction of performance metrics underlying the award.
[F2]Granted as compensation for services.
[F3]Represents a reduction in shares to satisfy the tax withholding obligations of the Issuer with respect to the settlement, on March 4, 2026, of 14,315 performance stock units as described in footnote (1) above.
[F4]Represents a reduction of shares to satisfy the tax withholding obligations of the Issuer with respect to the vesting, on March 5, 2026, of 2,532 restricted stock units.
[F5]This transaction was executed in multiple trades at prices ranging from $127.00 to $138.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder, full information regarding the number of shares and the prices at which the transaction was effectuated.
[F6]This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.
[F7]This option vested in one-third increments on each of June 17, 2020, 2021 and 2022.

Signature

Suman B. Mookerji|2026-03-06

1 file