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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*
Bain Linda

(Last) (First) (Middle)
C/O AUTOLUS THERAPEUTICS PLC
THE MEDIAWORKS, 191 WOOD LN, WHITE CITY

(Street)
LONDON W12 7FP

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026
3. Issuer Name and Ticker or Trading Symbol
Autolus Therapeutics plc [ AUTL ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
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)
Date Exercisable Expiration Date Title Amount or Number of Shares
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.