Comparable stake leader
MAK Capital Fund LP
SEC ownership of Autolus Therapeutics plc
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001730463.
Disclosed value leader
MAK Capital Fund LP
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- AUTL on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
MAK Capital Fund LP
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
MAK Capital Fund LP
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001730463
- Issuer location
- London, United Kingdom
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Autolus Therapeutics plc (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 Fund LP
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 13%
13D/G row: MAK Capital Fund LP
Showing 1-8 of 50 holder rows.
Quick read
MAK Capital Fund LP leads the comparable SEC ownership view at 13%.
50 of 50 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 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| MAK Capital Fund LP |
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
|
11%
|
$37,755,579
28,821,053 shares
|
$0 | 31 Mar 2025 |
| ARMISTICE CAPITAL, LLC |
13D/G
13F
Company
|
5.9%
|
$23,226,000
15,800,000 shares
|
-$2,499,000 | 31 Mar 2026 |
| FMR LLC |
13D/G
|
3.8%
|
$13,312,676
10,162,348 shares
|
$0 | 31 Mar 2025 |
| Deep Track Capital, LP |
13D/G
|
0.97%
|
$4,186,839
2,568,613 shares
|
$0 | 30 Sep 2025 |
| Christian Itin |
3/4/5
Chief Executive Officer, Director
|
0.42%
|
—
1,116,009 shares
|
— | 18 Mar 2026 |
| Christopher Andrew Vann |
3/4/5
Chief Operating Officer
|
0.06%
|
—
152,211 shares
|
— | 18 Mar 2026 |
| John E. Berriman |
3/4/5
Director
|
0.05%
|
—
136,331 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.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 13 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to Autolus Therapeutics plc. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Miranda Suzette Neville
Net 12M change
$0
Latest report
29 Jun 2026
Recent insider transactions for Autolus Therapeutics plc
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| William D. Young | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| William D. Young | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Madduri Ravin Rao | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Madduri Ravin Rao | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Ryan Richardson | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Ryan Richardson | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Elisabeth Leiderman | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Elisabeth Leiderman | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Robert Iannone | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Robert Iannone | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Cynthia M. Butitta | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Cynthia M. Butitta | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Linda Bain | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Linda Bain | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Robert Azelby | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Robert Azelby | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct | |||
| Michael W. Bonney | AUTL | Share Option (Right to Buy) | Award | 47,500 | 47,500 | 29 Jun 2026 | Direct | |||
| Michael W. Bonney | AUTL | Restricted Share Units | Award | 31,667 | 31,667 | 29 Jun 2026 | Direct |
* marks a reported price that did not pass the local price check.