Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Altimmune, Inc.

CIK 0001326190ALT· quarter ending 2026-06-30

Shares outstanding

194,517,701

as of 2026-08-07 · 10-Q cover page, filed 2026-08-12

Held by 13F filers

151,560,945

77.9% of shares outstanding

Holders

210

+37 vs 2026-03-31 · 58 new, 21 exited

Value

$460.7M

shares +118.5% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-12, as of 2026-08-07)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	ALT · NASDAQ	194,517,701	151,560,945	77.9%	210	02155H200

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	02155H200	COM NEW	210	151,560,945	194,517,701	77.9%	$460.7M	7 call / 3 put	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (210 of 210 · 02155H200)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	BlackRock, Inc.	20,385,284	10.48%	$62.0M	+7,590,007 (+59.3%)
2	Deep Track Capital, LP	19,250,000	9.90%	$58.5M	NEW
3	STATE STREET CORP	12,098,540	6.22%	$36.8M	+4,952,990 (+69.3%)
4	TCG Crossover Management, LLC	10,000,000	5.14%	$30.4M	NEW
5	VANGUARD CAPITAL MANAGEMENT LLC	8,177,752	4.20%	$24.9M	+2,519,703 (+44.5%)
6	VANGUARD PORTFOLIO MANAGEMENT LLC	7,330,265	3.77%	$22.3M	+1,948,263 (+36.2%)
7	MARSHALL WACE, LLP	6,841,055	3.52%	$20.8M	+2,823,154 (+70.3%)
8	VIKING GLOBAL INVESTORS LP	6,700,000	3.44%	$20.4M	NEW
9	RA CAPITAL MANAGEMENT, L.P.	6,500,000	3.34%	$19.8M	NEW
10	GEODE CAPITAL MANAGEMENT, LLC	5,011,314	2.58%	$15.2M	+1,904,218 (+61.3%)
11	Woodline Partners LP	3,400,312	1.75%	$10.3M	NEW
12	MILLENNIUM MANAGEMENT LLC	3,309,122	1.70%	$10.1M	+50,931 (+1.6%)
13	Nantahala Capital Management, LLC	3,000,000	1.54%	$9.1M	NEW
14	Trails Edge Capital Partners, LP	2,660,000	1.37%	$8.1M	NEW
15	Nuveen, LLC	2,405,354	1.24%	$7.3M	+70,753 (+3.0%)
16	TWO SIGMA INVESTMENTS, LP	2,381,142	1.22%	$7.2M	-97,758 (-3.9%)
17	GOLDMAN SACHS GROUP INC	2,214,450	1.14%	$6.7M	+863,801 (+64.0%)
18	GREAT POINT PARTNERS LLC	1,741,232	0.90%	$5.3M	NEW
19	NORTHERN TRUST CORP	1,599,226	0.82%	$4.9M	+602,505 (+60.4%)
20	Weiss Asset Management LP	1,530,803	0.79%	$4.7M	NEW
21	VANGUARD FIDUCIARY TRUST CO	1,293,001	0.66%	$3.9M	+423,683 (+48.7%)
22	Cormorant Asset Management, LP	1,250,000	0.64%	$3.8M	NEW
23	AQR CAPITAL MANAGEMENT LLC	1,220,949	0.63%	$3.7M	+1,135,495 (+1328.8%)
24	CITADEL ADVISORS LLC	983,559	0.51%	$3.0M	+534,686 (+119.1%)
25	UBS Group AG	866,385	0.45%	$2.6M	-38,383 (-4.2%)
26	MORGAN STANLEY	758,435	0.39%	$2.3M	-16,823 (-2.2%)
27	BANK OF AMERICA CORP /DE/	757,919	0.39%	$2.3M	+187,716 (+32.9%)
28	Ghisallo Capital Management LLC	750,000	0.39%	$2.3M	NEW
29	FMR LLC	748,974	0.39%	$2.3M	+75,010 (+11.1%)
30	SUSQUEHANNA INTERNATIONAL GROUP, LLP	731,078	0.38%	$2.2M	-594,878 (-44.9%)
31	Bank of New York Mellon Corp	689,713	0.35%	$2.1M	+276,210 (+66.8%)
32	TANG CAPITAL MANAGEMENT LLC	666,022	0.34%	$2.0M	—
33	DIMENSIONAL FUND ADVISORS LP	639,436	0.33%	$1.9M	-406,490 (-38.9%)
34	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	624,499	0.32%	$1.9M	+272,818 (+77.6%)
35	Hennion & Walsh Asset Management, Inc.	518,198	0.27%	$1.6M	+316,209 (+156.5%)
36	Point72 Asset Management, L.P.	486,884	0.25%	$1.5M	-178,405 (-26.8%)
37	Rock Springs Capital Management LP	471,465	0.24%	$1.4M	NEW
38	Beirne Wealth Consulting Services, LLC	421,858	0.22%	$1.3M	+10,000 (+2.4%)
39	WELLINGTON MANAGEMENT GROUP LLP	420,300	0.22%	$1.3M	+172,142 (+69.4%)
40	BNP PARIBAS FINANCIAL MARKETS	371,176	0.19%	$1.1M	-63,902 (-14.7%)
41	BARCLAYS PLC	351,587	0.18%	$1.1M	+158,716 (+82.3%)
42	Invesco Ltd.	332,592	0.17%	$1.0M	+104,735 (+46.0%)
43	RHUMBLINE ADVISERS	309,606	0.16%	$941K	+153,935 (+98.9%)
44	Janney Montgomery Scott LLC	302,610	0.16%	$920K	+130,000 (+75.3%)
45	LMR Partners LLP	300,000	0.15%	$912K	NEW
46	CITIGROUP INC	293,948	0.15%	$894K	+217,621 (+285.1%)
47	Steward Partners Investment Advisory, LLC	266,671	0.14%	$811K	+14,890 (+5.9%)
48	MANGROVE PARTNERS IM, LLC	239,280	0.12%	$727K	—
49	Baird Financial Group, Inc.	237,522	0.12%	$722K	—
50	BROWN WEALTH MANAGEMENT, LLC	236,136	0.12%	$718K	—
51	Rafferty Asset Management, LLC	225,060	0.12%	$684K	-6,211 (-2.7%)
52	Creative Planning	218,281	0.11%	$664K	+179,052 (+456.4%)
53	WELLS FARGO & COMPANY/MN	217,430	0.11%	$661K	+121,523 (+126.7%)
54	COMMONWEALTH EQUITY SERVICES, LLC	214,574	0.11%	$652K	+54,200 (+33.8%)
55	Squarepoint Ops LLC	202,380	0.10%	$615K	+184,254 (+1016.5%)
56	D. E. Shaw & Co., Inc.	201,638	0.10%	$613K	-525,363 (-72.3%)
57	ALPS ADVISORS INC	197,374	0.10%	$600K	+91,493 (+86.4%)
58	DEUTSCHE BANK AG\	195,014	0.10%	$593K	+70,498 (+56.6%)
59	STIFEL FINANCIAL CORP	192,368	0.10%	$585K	+57,752 (+42.9%)
60	Jump Financial, LLC	190,000	0.10%	$578K	NEW
61	Man Group plc	173,872	0.09%	$529K	+44,026 (+33.9%)
62	PRICE T ROWE ASSOCIATES INC /MD/	165,390	0.09%	$503K	+72,878 (+78.8%)
63	Knoll Capital Management, LLC	160,000	0.08%	$486K	—
64	Birchview Capital, LP	152,681	0.08%	$464K	NEW
65	ALLIANCEBERNSTEIN L.P.	140,850	0.07%	$434K	+69,090 (+96.3%)
66	Brevan Howard Capital Management LP	130,781	0.07%	$398K	+52,378 (+66.8%)
67	XTX Topco Ltd	128,088	0.07%	$389K	NEW
68	Virtus Investment Advisers, LLC	125,363	0.06%	$381K	+73,620 (+142.3%)
69	WEALTH EFFECTS LLC	122,650	0.06%	$373K	-9,300 (-7.0%)
70	LPL Financial LLC	121,952	0.06%	$371K	+18,196 (+17.5%)
71	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	117,682	0.06%	$355K	+40,390 (+52.3%)
72	MetLife Investment Management, LLC	116,856	0.06%	$355K	+44,643 (+61.8%)
73	PROFUND ADVISORS LLC	113,598	0.06%	$345K	+10,457 (+10.1%)
74	Jefferies Financial Group Inc.	110,000	0.06%	$334K	—
75	JPMORGAN CHASE & CO	106,625	0.05%	$313K	-20,873 (-16.4%)
76	SILVERCREST ASSET MANAGEMENT GROUP LLC	103,500	0.05%	$315K	—
77	Susquehanna Portfolio Strategies, LLC	103,374	0.05%	$314K	NEW
78	Summit Financial Wealth Advisors, LLC	103,288	0.05%	$314K	—
79	ADAR1 Capital Management, LLC	102,823	0.05%	$313K	NEW
80	Mariner, LLC	101,123	0.05%	$307K	NEW
81	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	100,000	0.05%	$304K	—
82	CANADA PENSION PLAN INVESTMENT BOARD	87,300	0.04%	$265K	+34,000 (+63.8%)
83	Grantham, Mayo, Van Otterloo & Co. LLC	83,837	0.04%	$255K	-42,552 (-33.7%)
84	Vanguard Global Advisers, LLC	75,045	0.04%	$228K	+32,219 (+75.2%)
85	KINGSWOOD WEALTH ADVISORS, LLC	74,500	0.04%	$226K	-2,000 (-2.6%)
86	RENAISSANCE TECHNOLOGIES LLC	71,600	0.04%	$218K	NEW
87	AMERIPRISE FINANCIAL INC	68,571	0.04%	$208K	-3,397 (-4.7%)
88	IEQ CAPITAL, LLC	66,954	0.03%	$204K	NEW
89	PVG ASSET MANAGEMENT CORP	66,120	0.03%	$201K	—
90	HSBC HOLDINGS PLC	64,460	0.03%	$200K	-89,905 (-58.2%)
91	Leonteq Securities AG	64,000	0.03%	$195K	-1,000 (-1.5%)
92	Police & Firemen's Retirement System of New Jersey	58,625	0.03%	$178K	+23,192 (+65.5%)
93	AXQ CAPITAL, LP	56,810	0.03%	$173K	+9,058 (+19.0%)
94	ENVESTNET ASSET MANAGEMENT INC	56,743	0.03%	$172K	NEW
95	Corient Private Wealth LP	54,226	0.03%	$165K	+23,673 (+77.5%)
96	MERCER GLOBAL ADVISORS INC /ADV	53,115	0.03%	$161K	NEW
97	NEW YORK STATE COMMON RETIREMENT FUND	52,747	0.03%	$160K	+31,300 (+145.9%)
98	MANUFACTURERS LIFE INSURANCE COMPANY, THE	52,036	0.03%	$158K	+17,273 (+49.7%)
99	Cetera Investment Advisers	51,901	0.03%	$158K	+16,448 (+46.4%)
100	Rockefeller Capital Management L.P.	49,740	0.03%	$151K	+3,370 (+7.3%)
101	SG Americas Securities, LLC	47,089	0.02%	$143K	-8,536 (-15.3%)
102	Caption Management, LLC	46,617	0.02%	$142K	-27,821 (-37.4%)
103	INTECH INVESTMENT MANAGEMENT LLC	45,911	0.02%	$140K	+15,150 (+49.3%)
104	Quantbot Technologies LP	45,632	0.02%	$139K	NEW
105	Graham Capital Management, L.P.	44,940	0.02%	$137K	NEW
106	Russell Investments Group, Ltd.	43,696	0.02%	$133K	+27,604 (+171.5%)
107	VOYA INVESTMENT MANAGEMENT LLC	39,783	0.02%	$121K	+18,772 (+89.3%)
108	Engineers Gate Manager LP	38,037	0.02%	$116K	-78,075 (-67.2%)
109	Kovack Advisors, Inc.	36,000	0.02%	$109K	-250 (-0.7%)
110	Cerity Partners LLC	35,469	0.02%	$108K	NEW
111	PRUDENTIAL FINANCIAL INC	35,190	0.02%	$107K	+13,400 (+61.5%)
112	Schonfeld Strategic Advisors LLC	35,077	0.02%	$107K	NEW
113	MML INVESTORS SERVICES, LLC	34,550	0.02%	$105K	—
114	ProShare Advisors LLC	32,427	0.02%	$99K	+7,904 (+32.2%)
115	Sequoia Financial Advisors, LLC	32,285	0.02%	$98K	NEW
116	E Fund Management Co., Ltd.	31,734	0.02%	$96K	+2,662 (+9.2%)
117	China Universal Asset Management Co., Ltd.	30,951	0.02%	$94K	+8,728 (+39.3%)
118	BLAIR WILLIAM & CO/IL	30,660	0.02%	$93K	+2,437 (+8.6%)
119	HUB Investment Partners, LLC	30,319	0.02%	$92K	+101 (+0.3%)
120	Concurrent Investment Advisors, LLC	28,649	0.01%	$87K	+2,141 (+8.1%)
121	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	25,989	0.01%	$79K	NEW
122	TWO SIGMA SECURITIES, LLC	25,435	0.01%	$77K	NEW
123	Vontobel Holding Ltd.	25,000	0.01%	$76K	+5,000 (+25.0%)
124	nVerses Capital, LLC	24,408	0.01%	$74K	NEW
125	CAPTRUST FINANCIAL ADVISORS	23,960	0.01%	$73K	NEW
126	Cambridge Investment Research Advisors, Inc.	22,412	0.01%	$68K	+11,206 (+100.0%)
127	North Star Investment Management Corp.	22,000	0.01%	$67K	+5,000 (+29.4%)
128	RAYMOND JAMES FINANCIAL INC	21,384	0.01%	$65K	-32,412 (-60.2%)
129	VICTORY CAPITAL MANAGEMENT INC	21,218	0.01%	$65K	+6,455 (+43.7%)
130	OSAIC HOLDINGS, INC.	21,078	0.01%	$64K	+400 (+1.9%)
131	Voleon Capital Management LP	20,715	0.01%	$63K	-6,427 (-23.7%)
132	EverSource Wealth Advisors, LLC	19,717	0.01%	$60K	-15,933 (-44.7%)
133	Legal & General Group Plc	19,289	0.01%	$59K	+7,793 (+67.8%)
134	Atria Investments, Inc	19,017	0.01%	$58K	NEW
135	PFG Investments, LLC	19,000	0.01%	$58K	+5,500 (+40.7%)
136	Jain Global LLC	18,947	0.01%	$58K	NEW
137	XPONANCE LLC	18,917	0.01%	$58K	+8,134 (+75.4%)
138	Vines Capital Management, LLC	18,884	0.01%	$57K	—
139	NEUBERGER BERMAN GROUP LLC	18,664	0.01%	$57K	NEW
140	Ameritas Investment Partners, Inc.	18,039	0.01%	$55K	+7,359 (+68.9%)
141	Centiva Capital, LP	17,938	0.01%	$55K	NEW
142	SYON CAPITAL LLC	17,118	0.01%	$52K	NEW
143	Composition Wealth, LLC	17,000	0.01%	$52K	—
144	CHOREO, LLC	16,709	0.01%	$51K	+18 (+0.1%)
145	EFG International AG	16,500	0.01%	$50K	—
146	WINTON GROUP Ltd	16,100	0.01%	$49K	NEW
147	Vanguard Personalized Indexing Management, LLC	15,978	0.01%	$49K	+5,851 (+57.8%)
148	PKS Advisory Services, LLC	15,600	0.01%	$47K	NEW
149	DCF Advisers, LLC	14,700	0.01%	$45K	—
150	Polymer Capital Management (US) LLC	14,001	0.01%	$43K	-9,998 (-41.7%)
151	Sciencast Management LP	13,566	0.01%	$41K	NEW
152	Aigen Investment Management, LP	13,496	0.01%	$41K	NEW
153	R Squared Ltd	13,264	0.01%	$40K	NEW
154	SMITH, MOORE & CO.	13,205	0.01%	$40K	—
155	Xcelsior Advisor Partners LLC	13,000	0.01%	$40K	NEW
156	MARTINGALE ASSET MANAGEMENT L P	12,855	0.01%	$39K	-1,500 (-10.4%)
157	BRIGHTON JONES LLC	12,596	0.01%	$38K	NEW
158	Focus Partners Wealth	12,499	0.01%	$38K	NEW
159	ROYAL BANK OF CANADA	11,904	0.01%	$35K	-13,413 (-53.0%)
160	Abel Hall, LLC	11,527	0.01%	$35K	NEW
161	Arax Advisory Partners	11,350	0.01%	$35K	+11,011 (+3248.1%)
162	Foundations Investment Advisors, LLC	11,052	0.01%	$34K	—
163	CIBC Bancorp USA Inc.	10,974	0.01%	$33K	NEW
164	CreativeOne Wealth, LLC	10,850	0.01%	$33K	+350 (+3.3%)
165	Advisory Services Network, LLC	10,760	0.01%	$33K	-4,500 (-29.5%)
166	JONES FINANCIAL COMPANIES LLLP	10,156	0.01%	$29K	-15,713 (-60.7%)
167	Geneos Wealth Management Inc.	10,000	0.01%	$30K	—
168	Mirae Asset Global Investments Co., Ltd.	8,698	0.00%	$26K	+2,166 (+33.2%)
169	Walleye Capital LLC	8,499	0.00%	$26K	+8,497 (+424850.0%)
170	SBI Securities Co., Ltd.	8,062	0.00%	$25K	-251 (-3.0%)
171	Tower Research Capital LLC (TRC)	7,477	0.00%	$23K	-7,011 (-48.4%)
172	Allworth Financial LP	6,892	0.00%	$21K	+6,822 (+9745.7%)
173	Activest Wealth Management	5,001	0.00%	$15K	—
174	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	4,154	0.00%	$13K	—
175	Sterling Capital Management LLC	4,006	0.00%	$12K	+3,159 (+373.0%)
176	PNC Financial Services Group, Inc.	3,860	0.00%	$12K	+2,308 (+148.7%)
177	GF FUND MANAGEMENT CO. LTD.	3,844	0.00%	$12K	+1,513 (+64.9%)
178	Pacer Advisors, Inc.	3,759	0.00%	$11K	NEW
179	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	3,100	0.00%	$9K	+3,000 (+3000.0%)
180	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	2,737	0.00%	$8K	-4,387 (-61.6%)
181	BELLEVUE ASSET MANAGEMENT, LLC	2,433	0.00%	$7K	—
182	HighMark Wealth Management LLC	2,000	0.00%	$6K	—
183	Optiver Holding B.V.	1,910	0.00%	$6K	-1,948 (-50.5%)
184	NewEdge Advisors, LLC	1,888	0.00%	$6K	—
185	SUMMIT SECURITIES GROUP LLC	1,507	0.00%	$5K	NEW
186	Farther Finance Advisors, LLC	1,044	0.00%	$3K	+903 (+640.4%)
187	MassMutual Private Wealth & Trust, FSB	1,000	0.00%	$3K	—
188	NISA INVESTMENT ADVISORS, LLC	895	0.00%	$3K	+800 (+842.1%)
189	FEDERATED HERMES, INC.	760	0.00%	$2K	NEW
190	Strategic Wealth Partners, Ltd.	700	0.00%	$2K	NEW
191	ROTHSCHILD INVESTMENT LLC	551	0.00%	$2K	+538 (+4138.5%)
192	Stone House Investment Management, LLC	526	0.00%	$2K	—
193	Essential Partners LLC	400	0.00%	$1K	+373 (+1381.5%)
194	Clearstead Advisors, LLC	328	0.00%	$998	+288 (+720.0%)
195	Wealth Enhancement Trust Services, Inc.	306	0.00%	$930	NEW
196	Bogart Wealth, LLC	298	0.00%	$906	—
197	ELEVATION WEALTH PARTNERS, LLC	286	0.00%	$870	—
198	Caitong International Asset Management Co., Ltd	257	0.00%	$781	-16,960 (-98.5%)
199	Parkside Financial Bank & Trust	235	0.00%	$713	NEW
200	SJS Investment Consulting Inc.	234	0.00%	$712	+218 (+1362.5%)
201	RMG Wealth Management LLC	225	0.00%	$659	NEW
202	Bare Financial Services, Inc	196	0.00%	$596	NEW
203	True Wealth Design, LLC	196	0.00%	$596	NEW
204	GAMMA Investing LLC	134	0.00%	$407	NEW
205	HARBOUR INVESTMENTS, INC.	100	0.00%	$304	—
206	Parallel Advisors, LLC	40	0.00%	$122	—
207	Bernard Wealth Management Corp.	15	0.00%	$46	—
208	FIRST HORIZON CORP	3	0.00%	$9	—
209	HUNTINGTON NATIONAL BANK	2	0.00%	$6	—
210	Commonwealth Retirement Investments LLC	1	0.00%	$3	NEW

Exited since 2026-03-31 (21 filers; largest 21 shown)

Alyeska Investment Group, L.P.	−2,644,600
SCHRODER INVESTMENT MANAGEMENT GROUP	−667,837
Virtu Financial LLC	−70,540
AMERICAN CENTURY COMPANIES INC	−62,909
ExodusPoint Capital Management, LP	−48,619
FARALLON CAPITAL MANAGEMENT LLC	−27,600
SIMPLEX TRADING, LLC	−22,841
Scientech Research LLC	−21,840
Keudell/Morrison Wealth Management	−18,500
Northeast Financial Group, Inc.	−13,641
NINE MASTS CAPITAL Ltd	−11,850
Sunbelt Securities, Inc.	−10,870
Quantinno Capital Management LP	−10,636
IMC-Chicago, LLC	−10,004
ACADIAN ASSET MANAGEMENT LLC	−7,311
GROUP ONE TRADING LLC	−6,695
CWM, LLC	−4,519
US BANCORP \DE\	−890
Legacy Wealth Managment, LLC/ID	−250
MAI Capital Management	−150
Larson Financial Group LLC	−5

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
KEVIN TANG	SCHEDULE 13G/A	2026-05-15	2026-03-31	666,022	0.3%
TANG CAPITAL PARTNERS, LP	SCHEDULE 13G/A	2026-05-15	2026-03-31	0	0%
TANG CAPITAL PARTNERS IV, INC	SCHEDULE 13G/A	2026-05-15	2026-03-31	0	0%
TANG CAPITAL PARTNERS INTERNATIONAL, LP	SCHEDULE 13G/A	2026-05-15	2026-03-31	666,022	0.3%
TANG CAPITAL PARTNERS III, INC	SCHEDULE 13G/A	2026-05-15	2026-03-31	0	0%
TANG CAPITAL MANAGEMENT, LLC	SCHEDULE 13G/A	2026-05-15	2026-03-31	666,022	0.3%
STATE STREET CORPORATION	SCHEDULE 13G	2026-05-12	2026-03-31	7,145,550	5.5%
RA Capital Healthcare Fund, L.P.	SCHEDULE 13G	2026-05-01	2026-04-24	13,000,000	6.5%
VIKING GLOBAL INVESTORS LP	SCHEDULE 13G	2026-05-01	2026-04-24	13,400,000	6.7%
Peter Kolchinsky	SCHEDULE 13G	2026-05-01	2026-04-24	13,000,000	6.5%
Viking Global Opportunities Vintage IV Portfolio GP LLC	SCHEDULE 13G	2026-05-01	2026-04-24	4,020,000	2%
RA Capital Management, L.P.	SCHEDULE 13G	2026-05-01	2026-04-24	13,000,000	6.5%
Rajeev Shah	SCHEDULE 13G	2026-05-01	2026-04-24	13,000,000	6.5%
Shabet Rose Sharon	SCHEDULE 13G	2026-05-01	2026-04-24	13,400,000	6.7%
Viking Global Opportunities Vintage IV GP LLC	SCHEDULE 13G	2026-05-01	2026-04-24	4,020,000	2%
Viking Global Opportunities Vintage IV (Aggregator) LP	SCHEDULE 13G	2026-05-01	2026-04-24	4,020,000	2%
Viking Global Opportunities Portfolio GP LLC	SCHEDULE 13G	2026-05-01	2026-04-24	9,380,000	4.7%
Viking Global Opportunities Parent GP LLC	SCHEDULE 13G	2026-05-01	2026-04-24	13,400,000	6.7%
Viking Global Opportunities Illiquid Investments Sub-Master LP	SCHEDULE 13G	2026-05-01	2026-04-24	9,380,000	4.7%
Viking Global Opportunities GP LLC	SCHEDULE 13G	2026-05-01	2026-04-24	9,380,000	4.7%
Chen Yu	SCHEDULE 13G	2026-05-01	2026-04-24	20,000,000	9.8%
HALVORSEN OLE ANDREAS	SCHEDULE 13G	2026-05-01	2026-04-24	13,400,000	6.7%
TCG Crossover GP II, LLC	SCHEDULE 13G	2026-05-01	2026-04-24	10,000,000	5%
TCG Crossover Fund III, L.P.	SCHEDULE 13G	2026-05-01	2026-04-24	10,000,000	5%
TCG Crossover Fund II, L.P.	SCHEDULE 13G	2026-05-01	2026-04-24	10,000,000	5%
TCG Crossover GP III, LLC	SCHEDULE 13G	2026-05-01	2026-04-24	10,000,000	5%
David Kroin	SCHEDULE 13G	2026-04-30	2026-04-23	19,417,221	9.99%
Deep Track Special Opportunities Fund, LP.	SCHEDULE 13G	2026-04-30	2026-04-23	2,588,963	1.33%
Deep Track Capital, LP	SCHEDULE 13G	2026-04-30	2026-04-23	19,417,221	9.99%
Deep Track Biotechnology Master Fund, Ltd.	SCHEDULE 13G	2026-04-30	2026-04-23	16,828,258	8.65%
The Vanguard Group	SCHEDULE 13G/A	2026-03-26	2026-03-13	0	0%
BlackRock, Inc.	SCHEDULE 13G/A	2025-07-16	2025-06-30	6,133,427	7.6%
TC Financing Ltd	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
Threadneedle Investment Services Limited	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
Threadneedle Holdings Limited	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
Threadneedle Asset Management Limited	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
TAM UK International Holdings Limited	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
TAM UK Holdings Limited	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
Threadneedle Asset Management Holdings Limited	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,324,639	1.7%
Ameriprise Financial, Inc.	SCHEDULE 13G/A	2025-05-15	2025-03-31	1,443,932	1.9%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.