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

13F Institutional Holders and Ownership History from Q2 2018 to Q4 2025

Type / Class
Equity / Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share
Symbol
AUTL on Nasdaq
Shares outstanding
266,212,950
Price per share
$1.99
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
143,479,673
Total reported value
$233,506,297
% of total 13F portfolios
0%
Share change
-24,720,638
Value change
-$67,552,891
Number of holders
94
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share (AUTL) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Syncona Portfolio Ltd 11% $39,196,632 28,821,053 Syncona Portfolio Limited 31 Mar 2025
MAK Capital Fund LP 10% +72% $34,416,010 +$14,692,954 26,887,508 +74% MAK Capital Fund LP 01 Dec 2025
ARMISTICE CAPITAL, LLC 5.9% $25,428,000 15,600,000 Armistice Capital, LLC 30 Sep 2025
FMR LLC 3.8% $13,820,793 10,162,348 FMR LLC 31 Mar 2025
Deep Track Capital, LP 0.97% $4,186,839 2,568,613 Deep Track Capital, LP 30 Sep 2025

As of 30 Sep 2025, 94 institutional investors reported holding 143,479,673 shares of Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share (AUTL). This represents 54% of the company’s total 266,212,950 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Autolus Therapeutics plc - Ordinary Shares, nominal value $0.000042 per share, and American Depositary Shares ("ADS"). Each ADS represents one Ordinary Share (AUTL) together control 52% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
MAK CAPITAL ONE LLC 9.8% 26,017,616 +53% 8.5% $42,408,714
Blackstone Inc. 7.7% 20,485,611 0% 0.14% $33,391,546
Syncona Portfolio Ltd 6.3% 16,640,720 0% 98% $27,124,374
ARMISTICE CAPITAL, LLC 5.9% 15,600,000 +30% 0.8% $25,428,000
TFG Asset Management GP Ltd 3.6% 9,500,000 0% 2.2% $15,485,000
SCHRODER INVESTMENT MANAGEMENT GROUP 3.2% 8,433,253 +134% 0.01% $13,408,872
CITADEL ADVISORS LLC 2.3% 6,044,243 +502% 0.01% $9,852,116
RENAISSANCE TECHNOLOGIES LLC 1.8% 4,881,372 +179% 0.01% $7,956,636
Frazier Life Sciences Management, L.P. 1.7% 4,623,324 0% 0.23% $7,536,018
BlackRock, Inc. 1.3% 3,474,775 -0.47% 0% $5,663,884
AXA Investment Managers S.A. 1.3% 3,361,156 0% 0.02% $5,478,684
Laurion Capital Management LP 1.2% 3,316,626 0% 0.74% $5,406,100
Deep Track Capital, LP 0.96% 2,568,613 -85% 0.12% $4,186,839
BANK OF AMERICA CORP /DE/ 0.76% 2,029,593 +108% 0% $3,308,237
ACADIAN ASSET MANAGEMENT LLC 0.7% 1,853,422 0.01% $3,014,000
Affinity Asset Advisors, LLC 0.66% 1,750,000 -43% 0.27% $2,852,500
MORGAN STANLEY 0.46% 1,213,773 +162% 0% $1,978,450
JPMORGAN CHASE & CO 0.34% 903,068 -1.3% 0% $1,472,001
JANE STREET GROUP, LLC 0.33% 874,474 0% $1,425,392
Cetera Investment Advisers 0.3% 801,250 +30% 0% $1,306,038
Alphabet Inc. 0.26% 698,262 0% 0.05% $1,138,167
MARSHALL WACE, LLP 0.24% 641,952 0% $1,046,381
GOLDMAN SACHS GROUP INC 0.19% 493,753 +1948% 0% $804,817
Perpetual Ltd 0.18% 481,081 -42% 0.01% $784,162
Hennion & Walsh Asset Management, Inc. 0.16% 420,581 -1.8% 0.02% $685,547

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

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 584,313 $1,163,094 -$68,995 $1.99 5
2025 Q3 143,479,673 $233,506,297 -$67,552,891 $1.63 94
2025 Q2 165,944,662 $378,376,899 +$9,844,423 $2.28 93
2025 Q1 168,007,270 $260,819,692 -$3,531,766 $1.55 94
2024 Q4 168,313,648 $395,039,824 -$37,132,339 $2.35 106
2024 Q3 178,602,235 $648,320,594 +$2,536,355 $3.63 97
2024 Q2 177,931,561 $619,155,914 -$54,391,608 $3.48 105
2024 Q1 175,580,707 $1,120,176,480 +$376,499,430 $6.38 114
2023 Q4 379,227 $2,479,272 +$1,186,422 $6.44 3
2023 Q3 110,512,409 $257,493,010 +$2,926,169 $2.33 66
2023 Q2 109,135,876 $259,736,867 +$12,434,859 $2.38 67
2023 Q1 105,767,470 $194,607,215 -$3,026,252 $1.84 63
2022 Q4 107,176,378 $203,623,162 +$109,704,106 $1.90 68
2022 Q3 49,240,551 $105,382,361 -$3,357,848 $2.14 60
2022 Q2 50,705,958 $143,501,265 -$7,116,223 $2.83 55
2022 Q1 45,540,710 $190,003,650 +$1,658,631 $4.17 58
2021 Q4 52,343,220 $271,659,730 +$101,856,146 $5.19 68
2021 Q3 24,956,458 $163,467,184 -$7,867,465 $6.55 56
2021 Q2 25,258,541 $168,790,310 +$23,305,255 $6.64 63
2021 Q1 22,274,704 $127,628,939 +$52,994,695 $5.73 57
2020 Q4 12,595,898 $112,605,120 +$4,279,291 $8.94 45
2020 Q3 12,386,365 $143,379,095 -$24,849,884 $11.64 44
2020 Q2 14,288,922 $229,059,396 -$16,424,844 $16.03 47
2020 Q1 15,976,643 $96,353,056 +$6,951,684 $5.99 48
2019 Q4 13,423,801 $177,193,289 +$26,775,464 $13.20 53
2019 Q3 13,444,843 $166,969,346 +$17,512,683 $12.42 42
2019 Q2 9,789,344 $157,564,698 +$59,869,890 $16.10 44
2019 Q1 18,088,058 $569,233,000 +$34,029,483 $31.47 32
2018 Q4 16,988,795 $557,884,000 -$24,061,515 $32.84 36
2018 Q3 17,853,077 $546,310,000 +$278,737,346 $30.66 39
2018 Q2 9,009,943 $237,773,483 +$233,742,457 $26.79 49