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^*

Bain Linda

(Last)

(First)

(Middle)

C/O AUTOLUS THERAPEUTICS PLC

THE MEDIAWORKS, 191 WOOD LN, WHITE CITY

(Street)

LONDON

W12 7FP

(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
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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

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⁾	06/21/2028	American Depositary Shares	31,397	$17	D
Share Option (right to buy)	⁽¹⁾	03/28/2029	American Depositary Shares	25,000	$30.24	D
Share Option (right to buy)	⁽¹⁾	06/18/2030	American Depositary Shares	12,500	$13.25	D
Share Option (right to buy)	⁽¹⁾	06/18/2031	American Depositary Shares	12,500	$7.57	D
Share Option (right to buy)	⁽¹⁾	06/28/2032	American Depositary Shares	20,000	$2.84	D
Share Option (right to buy)	⁽¹⁾	06/30/2033	American Depositary Shares	105,000	$2.38	D
Share Option (right to buy)	⁽¹⁾	06/28/2034	American Depositary Shares	80,000	$3.48	D
Share Option (right to buy)	⁽²⁾	06/26/2035	American Depositary Shares	80,000	$2.32	D

Explanation of Responses:

1. Fully vested and exercisable.

2. This option vested or vests in twelve equal monthly installments commencing on July 26, 2025.

	/s/ Linda Bain	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 Bain Linda