Ardmore Shipping (ASC) SVP discloses 35,461 shares and RSU grants

Rhea-AI Filing Summary

Ardmore Shipping Corp executive O'Driscoll Aideen Siobhan, SVP & Sr. Dir. of Corporate Services, reports existing equity holdings on a Form 3. The filing lists 35,461 shares of common stock held directly, plus restricted stock units representing 1,821, 4,883 and 6,596 underlying common shares that vest over future dates.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider O'Driscoll Aideen Siobhan

Role SVP & Sr. Dir. of Corp. Svcs

Type	Security	Shares	Price	Value
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Restricted Stock Units	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Units — 1,821 shares (Direct); Common Stock — 35,461 shares (Direct)

Footnotes (1)

1. Restricted Stock Units ("RSUs") represent a contingent right to receive one share of the Issuer's common stock per RSU. RSUs have associated dividend equivalent rights ("DERs") that vest and become payable in shares of the Issuer's common stock proportionately with the RSUs to which they relate. Upon vesting of RSUs, the number of shares issuable under the associated DERs becomes calculable, based on the quotient of the accrued dividends with respect to the vested RSUs, divided by the common stock's fair market value on such vesting date (or in the event dividends are declared, but not yet paid to stockholders as of a vesting date, on the date of payment to stockholders). These RSUs vest in full on the date shown, subject to the reporting person's continued service to the Issuer through the vesting date. Date at which first vesting occurs is indicated. These RSUs vest in equal annual installments over 2 years, subject to the reporting person's continued service to the Issuer through each vesting date. Date at which first vesting occurs is indicated. These RSUs vest in equal annual installments over 3 years, subject to the reporting person's continued service to the Issuer through each vesting date.

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

O'Driscoll Aideen Siobhan

(Last) (First) (Middle)

C/O PERKINS COIE LLP

1301 SECOND AVENUE, SUITE 4200

(Street)

SEATTLE WASHINGTON 98101

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Ardmore Shipping Corp [ ASC ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & Sr. Dir. of Corp. Svcs

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	35,461	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units(1)	03/01/2027(2)	03/01/2027	Common Stock	1,821	$0.0000	D
Restricted Stock Units(1)	03/01/2027(3)	03/01/2028	Common Stock	4,883	$0.0000	D
Restricted Stock Units(1)	03/01/2027(4)	03/01/2029	Common Stock	6,596	$0.0000	D

Explanation of Responses:

1. Restricted Stock Units ("RSUs") represent a contingent right to receive one share of the Issuer's common stock per RSU. RSUs have associated dividend equivalent rights ("DERs") that vest and become payable in shares of the Issuer's common stock proportionately with the RSUs to which they relate. Upon vesting of RSUs, the number of shares issuable under the associated DERs becomes calculable, based on the quotient of the accrued dividends with respect to the vested RSUs, divided by the common stock's fair market value on such vesting date (or in the event dividends are declared, but not yet paid to stockholders as of a vesting date, on the date of payment to stockholders).

2. These RSUs vest in full on the date shown, subject to the reporting person's continued service to the Issuer through the vesting date.

3. Date at which first vesting occurs is indicated. These RSUs vest in equal annual installments over 2 years, subject to the reporting person's continued service to the Issuer through each vesting date.

4. Date at which first vesting occurs is indicated. These RSUs vest in equal annual installments over 3 years, subject to the reporting person's continued service to the Issuer through each vesting date.

Remarks:

Exhibit 24: Power of Attorney provided herewith. Due to technical difficulties, the reporting person's foreign address could not be provided.

	/s/ O'Driscoll Aideen	03/12/2026
	** Signature of Reporting Person	Date
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 5 (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 3: SEC 1473 (03-26)

FAQ

What does Ardmore Shipping (ASC) disclose in this Form 3 for O'Driscoll Aideen Siobhan?

The Form 3 discloses existing equity holdings for O'Driscoll Aideen Siobhan. It reports 35,461 Ardmore Shipping common shares held directly and several restricted stock unit (RSU) awards tied to 1,821, 4,883 and 6,596 underlying common shares with future vesting dates.

How many Ardmore Shipping (ASC) common shares does O'Driscoll Aideen Siobhan hold directly?

The filing shows direct ownership of 35,461 Ardmore Shipping common shares. This figure appears as the total shares following the reported holding entry for common stock and represents the baseline equity position reported for this executive on the Form 3.

What restricted stock units are reported for O'Driscoll Aideen Siobhan at Ardmore Shipping (ASC)?

The Form 3 lists three restricted stock unit positions. They correspond to 1,821, 4,883 and 6,596 underlying Ardmore Shipping common shares, each with an exercise price of 0.0000 and expiration dates in 2027, 2028 and 2029, respectively.

How do the RSUs for Ardmore Shipping (ASC) vest for O'Driscoll Aideen Siobhan?

The RSUs vest based on continued service to Ardmore Shipping. One grant vests in full on the stated date, another vests in equal annual installments over two years, and a third vests in equal annual installments over three years, all subject to continued service conditions.

What are dividend equivalent rights (DERs) mentioned in the Ardmore Shipping (ASC) Form 3 footnotes?

DERs are rights attached to RSUs that accrue value based on dividends on Ardmore Shipping common stock. When RSUs vest, DERs become payable in additional shares, calculated by dividing accrued dividends by the common stock’s fair market value on the relevant vesting or dividend payment date.

Does the Ardmore Shipping (ASC) Form 3 show new insider buying or selling activity?

The Form 3 presents holdings rather than explicit buy or sell transactions. All entries are coded as holdings with unknown transaction codes, indicating disclosure of existing common stock and RSU positions for the executive, not reported open-market purchases or sales.