SEC FORM 3

SEC FORM 3SEC 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^*

Will Matthias

(Last)

(First)

(Middle)

C/O AUTOLUS THERAPEUTICS PLC

THE MEDIAWORKS, 191 WOOD LN, WHITE CITY

(Street)

LONDON

W12 7FP

(City)

(State)

(Zip)

UNITED KINGDOM

(Country)

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

3. Issuer Name and Ticker or Trading Symbol
Autolus Therapeutics plc [ AUTL ]

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)
	Chief Development Officer

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)

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Share Option (right to buy)	⁽¹⁾	09/30/2034	American Depositary Shares	800,000	$3.63	D
Share Option (right to buy)	⁽²⁾	03/14/2035	American Depositary Shares	250,000	$1.89	D
Share Option (right to buy)	⁽³⁾	01/26/2036	American Depositary Shares	375,000	$1.46	D
Restricted Share Units	⁽⁴⁾	⁽⁴⁾	American Depositary Shares	83,300	⁽⁵⁾	D

Explanation of Responses:

1. This option vested 25% on September 30, 2025 and the remainder vests in 36 equal monthly installments thereafter.

2. This option vested 25% on March 14, 2026 and the remainder vests in 36 equal monthly installments thereafter.

3. This option vests 25% on January 26, 2027 and the remainder vests in 36 equal monthly installments thereafter.

4. The restricted share units ("RSUs") vest in four equal annual installments commencing on January 26, 2027.

5. Each RSU represents a contingent right to receive one Issuer American Depositary Share.

	/s/ Matthias Will	03/18/2026
	** 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)

SEC Form 3 filed by new insider Will Matthias