Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share (AUTL)

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

CUSIP 05280R100 is the security identifier for AUTL - Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share used to aggregate holder disclosures.

Q: How many institutions held AUTL - Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share in Q1 2026?

84 institutional investors reported AUTL - Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: 05280R100

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share
Total 13F shares: 134,436,091
Total 13F value: $184,354,727
Share change: -3,613,694
Put/Call ratio: 0%
SEC-reported price per share: $1.38
Number of holders: 84
Value change: -$5,299,819
Number of buys: 32
Number of sells: 39
Shares outstanding: 266,837,198

Security key

05280R100

Report period

Q1 2026

Institutions

Top holders

AUTL full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Autolus Therapeutics plc SEC filings Autolus Therapeutics plc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 05280R100

Newer quarter: Q2 2026

Recent filing periods:

Q2 2026

Ownership snapshot

Top reported holders of AUTL - Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary 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

MAK Capital Fund LP

Disclosed value leader

MAK CAPITAL ONE LLC

Comparable rows

15/15

Latest evidence

31 Mar 2026

13D/G 13F 3/4/5 Lead comparable stake: 13% 13D/G row: MAK Capital Fund LP Showing 1-6 of 15 holder rows.

Quick read

MAK Capital Fund LP leads the comparable SEC ownership view at 13%.

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 MAK Capital Fund LP's linked filing trail.

Comparable ownership Top 5

MAK Capital Fund LP 13%

Syncona Portfolio Ltd 11%

ARMISTICE CAPITAL, LLC 5.9%

FMR LLC 3.8%

Deep Track Capital, LP 0.97%

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
MAK Capital Fund LP	13D/G 13D/G	13%	$49,423,586 33,621,487 shares	+$5,315,732	31 Mar 2026
Syncona Portfolio Ltd	13D/G 13F Syncona Portfolio Limited · Company 13D/G 13F	11%	$37,755,579 28,821,053 shares	$0	31 Mar 2025
ARMISTICE CAPITAL, LLC	13F 13D/G Company 13F 13D/G	5.9% from 13D/G	$34,825,000 17,500,000 shares	—	31 Dec 2025
FMR LLC	13D/G 13D/G	3.8%	$13,312,676 10,162,348 shares	$0	31 Mar 2025
Deep Track Capital, LP	13D/G 13D/G	0.97%	$4,186,839 2,568,613 shares	$0	30 Sep 2025
Christian Itin	3/4/5 Chief Executive Officer, Director 3/4/5	0.42%	— 1,116,009 shares	—	18 Mar 2026

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 Q1 2026

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

Institutions

134,436,091

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 Q1 2026 vs Q1 2026 Across Filers

Q1 2026 holders

Holder diff

Investor	Q1 2026 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q1 2026 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend