Autolus Therapeutics plc - ADSs, each representing one ordinary share, nominal value $0.000042 per share, and ordinary shares, nominal value $0.000042 per share (AUTL)

Q: What does CUSIP 05280R100 represent in this 13F holders report?

CUSIP 05280R100 is the security identifier for AUTL - Autolus Therapeutics plc - ADSs, each representing one ordinary share, nominal value $0.000042 per share, and ordinary shares, nominal value $0.000042 per share used to aggregate holder disclosures.

Q: How many institutions held AUTL - Autolus Therapeutics plc - ADSs, each representing one ordinary share, nominal value $0.000042 per share, and ordinary shares, nominal value $0.000042 per share in Q3 2025?

95 institutional investors reported AUTL - Autolus Therapeutics plc - ADSs, each representing one ordinary share, nominal value $0.000042 per share, and ordinary shares, nominal value $0.000042 per share for Q3 2025. Use the holders table for investor-level position and value details.

CUSIP: 05280R100

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class: Equity / ADSs, each representing one ordinary share, nominal value $0.000042 per share, and ordinary shares, nominal value $0.000042 per share
Total 13F shares: 143,579,673
Total 13F value: $233,669,297
Share change: -24,720,638
Put/Call ratio: 170%
SEC-reported price per share: $1.63
Number of holders: 95
Value change: -$67,552,879
Number of buys: 46
Number of sells: 35
Shares outstanding: 263,969,196

Security key

05280R100

Report period

Q3 2025

Institutions

Top holders

AUTL full security history Ownership snapshot Full 13F holder table Autolus Therapeutics plc SEC filings Autolus Therapeutics plc company facts

Broader feeds

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Ownership snapshot

Top reported holders of AUTL - Autolus Therapeutics plc - ADSs, each representing one ordinary share, nominal value $0.000042 per share, and ordinary shares, nominal value $0.000042 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Syncona Portfolio Ltd

Disclosed value leader

WELLINGTON MANAGEMENT GRO...

Comparable rows

15/15

Latest evidence

30 Jun 2025

13F 13D/G Lead comparable stake: 11% 13D/G row: Syncona Portfolio Ltd Showing 1-6 of 15 holder rows.

Quick read

Syncona Portfolio Ltd leads the comparable SEC ownership view at 11%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Syncona Portfolio Ltd's linked filing trail.

Comparable ownership Top 5

Syncona Portfolio Ltd 11%

FMR LLC 3.8%

Deep Track Capital, LP 0.97%

WELLINGTON MANAGEMENT GROUP LLP 10%

Blackstone Inc. 7.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Syncona Portfolio Ltd	13F 13D/G Company · Syncona Portfolio Limited 13F 13D/G	11% from 13D/G	$37,940,842 16,640,720 shares	—	30 Jun 2025
FMR LLC	13F 13D/G Company 13F 13D/G	3.8% from 13D/G	$16,200,733 7,105,585 shares	—	30 Jun 2025
Deep Track Capital, LP	13F 13D/G Company 13F 13D/G	0.97% from 13D/G	$38,422,895 16,852,147 shares	—	30 Jun 2025
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	10%	$61,895,240 27,147,035 shares	—	30 Jun 2025
Blackstone Inc.	13F Company 13F	7.8%	$46,707,193 20,485,611 shares	—	30 Jun 2025
MAK CAPITAL ONE LLC	13F Company 13F	6.4%	$38,657,623 16,955,098 shares	—	30 Jun 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

143,579,673

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders

Q3 2025 holders

Holder diff

Investor	Q2 2025 Shares	Q3 2025 Shares	Share Diff	Share Chg %	Q2 2025 value	Q3 2025 value	Value change	Value Chg %