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.

AgomAb Therapeutics NV

CIK 0002020932AGMB· quarter ending 2026-06-30

Shares outstanding

34,167,168

as of 2025-12-31 · 20-F cover page, filed 2026-04-23

Held by 13F filers

27,523,670

80.6% of shares outstanding

Holders

+2 vs 2026-03-31 · 9 new, 7 exited

Value

$357.3M

shares +17.9% vs prior quarter

Share classes (cover page of the 20-F filed 2026-04-23, as of 2025-12-31)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	AGMB · NASDAQ	34,167,168	27,523,670	80.6%	34	00860C102

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
	00860C102	SPONSORED ADS	34	27,523,670	34,167,168	80.6%	$357.3M	—	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 (34 of 34 · 00860C102)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	EQT Fund Management S.a r.l.	5,141,992	15.05%	$66.7M	—
2	Nantahala Capital Management, LLC	3,136,376	9.18%	$40.7M	+1,936,376 (+161.4%)
3	Sanofi	2,783,096	8.15%	$36.1M	—
4	Redmile Group, LLC	2,733,926	8.00%	$35.5M	+2,577,676 (+1649.7%)
5	Cormorant Asset Management, LP	2,465,348	7.22%	$32.0M	—
6	TCG Crossover Management, LLC	2,053,233	6.01%	$26.7M	—
7	FEDERATED HERMES, INC.	1,618,000	4.74%	$21.0M	—
8	Casdin Capital, LLC	1,550,000	4.54%	$20.1M	—
9	ANDERA PARTNERS	1,538,702	4.50%	$20.0M	—
10	FMR LLC	1,458,677	4.27%	$18.9M	—
11	Aberdeen Group plc	846,695	2.48%	$11.0M	+139,039 (+19.6%)
12	PERCEPTIVE ADVISORS LLC	600,000	1.76%	$7.8M	—
13	SAMSARA BIOCAPITAL, LLC	600,000	1.76%	$7.8M	—
14	Siren, L.L.C.	411,250	1.20%	$5.3M	—
15	ORBIMED ADVISORS LLC	192,740	0.56%	$2.5M	NEW
16	Pfizer Inc	75,000	0.22%	$1.0M	—
17	ALPS ADVISORS INC	49,984	0.15%	$649K	NEW
18	Bellevue Group AG	49,248	0.14%	$639K	-752 (-1.5%)
19	SEVEN GRAND MANAGERS, LLC	47,600	0.14%	$618K	-152,400 (-76.2%)
20	SECTORAL ASSET MANAGEMENT INC	43,500	0.13%	$565K	—
21	Burkehill Global Management, LP	35,000	0.10%	$454K	—
22	Quadrature Capital Ltd	20,461	0.06%	$266K	NEW
23	TWO SIGMA INVESTMENTS, LP	18,072	0.05%	$235K	+3,831 (+26.9%)
24	HRT FINANCIAL LP	17,075	0.05%	$221K	-6,651 (-28.0%)
25	GOLDMAN SACHS GROUP INC	11,800	0.03%	$153K	-23,939 (-67.0%)
26	XTX Topco Ltd	10,271	0.03%	$133K	NEW
27	CITIGROUP INC	9,496	0.03%	$123K	NEW
28	UBS Group AG	2,128	0.01%	$28K	-4,309 (-66.9%)
29	GAMMA Investing LLC	1,344	0.00%	$17K	NEW
30	MORGAN STANLEY	1,200	0.00%	$16K	-1,825 (-60.3%)
31	BNP PARIBAS FINANCIAL MARKETS	754	0.00%	$10K	NEW
32	Larson Financial Group LLC	698	0.00%	$9K	NEW
33	Caitong International Asset Management Co., Ltd	2	0.00%	$26	NEW
34	SBI Securities Co., Ltd.	2	0.00%	$26	—

Exited since 2026-03-31 (7 filers; largest 7 shown)

LMR Partners LLP	−300,000
MILLENNIUM MANAGEMENT LLC	−95,233
Alyeska Investment Group, L.P.	−75,000
Laurion Capital Management LP	−50,000
CITADEL ADVISORS LLC	−35,000
D. E. Shaw & Co., Inc.	−15,326
JANE STREET GROUP, LLC	−12,794

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
Redmile Biopharma Investments III, L.P.	SCHEDULE 13G	2026-05-15	2026-03-31	2,735,926	5.6%
Bihua Chen	SCHEDULE 13G	2026-05-15	2026-03-31	2,465,348	5.01%
Cormorant Asset Management, LP	SCHEDULE 13G	2026-05-15	2026-03-31	2,465,348	5.01%
Jeremy C. Green	SCHEDULE 13G	2026-05-15	2026-03-31	2,735,926	5.6%
Redmile Group, LLC	SCHEDULE 13G	2026-05-15	2026-03-31	2,735,926	5.6%
SANOFI	SCHEDULE 13G	2026-05-06	2026-03-31	2,783,096	5.71%
Tomer Kariv	SCHEDULE 13G	2026-04-16	2026-03-31	3,305,846	6.8%
Pontifax Management 4 G.P. (2015) Ltd.	SCHEDULE 13G	2026-04-16	2026-03-31	3,305,846	6.8%
Pontifax VI G.P. L.P.	SCHEDULE 13G	2026-04-16	2026-03-31	3,305,846	6.8%
Ran Nussbaum	SCHEDULE 13G	2026-04-16	2026-03-31	3,305,846	6.8%
FMR LLC	SCHEDULE 13G	2026-03-06	2026-02-27	4,873,680	10%
Abigail P. Johnson	SCHEDULE 13G	2026-03-06	2026-02-27	4,873,680	10%
LSP 7 Management B.V.	SCHEDULE 13D	2026-02-17	2026-02-09	5,141,992	10.6%
LSP 7 Cooperatieve U.A.	SCHEDULE 13D	2026-02-17	2026-02-09	5,141,992	10.6%

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.