STOCK TITAN

Ducommun (NYSE: DCO) CEO exercises 10,000 options, sells stock

(Very High)
(Negative)
Form Type
4

Rhea-AI Filing Summary

Ducommun Inc (DCO) Chairman, President & CEO Stephen G. Oswald reported a set of related equity transactions. On 2026-08-17 he exercised 10,000 stock options at $32.90 per share, receiving 10,000 shares of common stock and leaving 7,500 options outstanding from that grant. Also on 2026-08-17, 6,111 shares of common stock were delivered or withheld at $206.98 per share for payment of exercise price or tax liability. On 2026-08-18 he sold 2,500 shares of common stock at a weighted average price of $203.95 per share, in multiple trades between $202.49 and $204.80.

Positive

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Negative

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Insights

Analyzing...

Insider Oswald Stephen G
Role Chairman, President & CEO
Sold 2,500 shs ($510K)
Approx. gross sale proceeds $510K
Approx. exercise cost $329K
Type Security Shares Price Value
Sale Common Stock F1 2,500 $203.95 $510K
Exercise Option - Right to Buy F2, F3 10,000 $0.00 $0.00
Exercise Common Stock 10,000 $32.90 $329K
Exercise Price or Tax Liability Common Stock 6,111 $206.98 $1.26M
Holdings After Transaction: Option - Right to Buy — 7,500 shares (Direct); Common Stock — 383,864 shares (Direct)
Footnotes (3)
  1. F1. This transaction was executed in multiple trades at prices ranging from $202.49 to $204.80. 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 prices at which the transaction was effectuated.
  2. F2. This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.
  3. F3. This option vested in one-third increments on each of May 14, 2019, 2020 and 2021.
Shares sold 2500 shares Common stock sale on 2026-08-18 by CEO Stephen G. Oswald
Sale weighted average price $203.95 per share Weighted average sale price for 2,500 shares on 2026-08-18; trades between $202.49 and $204.80
Options exercised 10000 options Option exercise (Code M) into common stock on 2026-08-17
Option exercise price $32.90 per share Strike price of options exercised for 10,000 shares of common stock
Remaining options from grant 7500 options Options reported as outstanding after the 10,000-option exercise; expire 2028-05-14
Shares delivered/withheld 6111 shares Shares delivered or withheld at $206.98 per share for exercise price or tax liability
Tax/exercise settlement price $206.98 per share Price used for 6,111-share Code F transaction related to option exercise
Option expiration date 2028-05-14 Expiration of the option grant exercised for 10,000 shares
weighted average sale price financial
"The price reported above reflects the weighted average sale price."
Rule 16b-3 plan regulatory
"under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan."
Stock Incentive Plan financial
"represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan"
A stock incentive plan is a company program that gives employees or directors pieces of ownership or the right to buy shares over time, similar to receiving a bonus paid in company stock instead of cash. Investors pay attention because these plans align staff incentives with long‑term company performance but can also dilute existing shareholders and affect reported profits when grants are expensed, so they influence both ownership percentages and financial results.
Payment of exercise price or tax liability by delivering or withholding securities financial
"transaction code F is described as Payment of exercise price or tax liability"

FAQ

What insider transactions did DCO CEO Stephen G. Oswald report on August 17-18, 2026?

Stephen G. Oswald exercised 10,000 stock options, had 6,111 shares delivered or withheld for exercise price or tax liability, and later sold 2,500 shares of Ducommun common stock in market transactions.

How many Ducommun (DCO) options did the CEO exercise and what was the strike price?

He exercised 10,000 options to buy Ducommun common stock at a strike price of $32.90 per share. These options were granted under Ducommun Incorporated's Stock Incentive Plan and had previously vested in one-third increments over 2019–2021.

How many Ducommun (DCO) shares did the CEO sell and at what price range?

He sold 2,500 shares of Ducommun common stock at a $203.95 weighted average price, with individual trades executed between $202.49 and $204.80 per share, in open-market or private transactions.

What happened to the remaining Ducommun (DCO) stock options after the CEO’s exercise?

After exercising 10,000 options, the CEO reported 7,500 options remaining from that grant. These options carry an exercise price of $32.90 per share and an expiration date of 2028-05-14.

Why were 6,111 Ducommun (DCO) shares delivered or withheld in the CEO’s Form 4?

A total of 6,111 shares of common stock were delivered or withheld at $206.98 per share for payment of the option exercise price or related tax liability, as indicated by the transaction code F description.

Were Stephen G. Oswald’s Ducommun (DCO) trades made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as a plan transaction. The options exercised were granted under a Rule 16b-3 Stock Incentive Plan, but the sales themselves are not indicated as being under a 10b5-1 plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Oswald Stephen G

(Last)(First)(Middle)
600 ANTON BLVD.
SUITE 1100

(Street)
COSTA MESA CALIFORNIA 92626

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
DUCOMMUN INC /DE/ [ DCO ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chairman, President & CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/17/2026M10,000A$32.9392,475D
Common Stock08/17/2026F6,111D$206.98386,364D
Common Stock08/18/2026S2,500D$203.95(1)383,864D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Option - Right to Buy(2)$32.908/17/2026M10,00005/14/2021(3)05/14/2028Common Stock10,000$07,500D
Explanation of Responses:
1. This transaction was executed in multiple trades at prices ranging from $202.49 to $204.80. 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 prices at which the transaction was effectuated.
2. This option represents the right to purchase common stock under Ducommun Incorporated's Stock Incentive Plan, which is a Rule 16b-3 plan.
3. This option vested in one-third increments on each of May 14, 2019, 2020 and 2021.
Stephen G. Oswald08/19/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)