T. Rowe Price Investment Management, Inc.

Position in CABA — Cabaletta Bio, Inc.

CIK 1897612 BALTIMORE, MD

Position in CABA

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$58,685,410

+$28,880,197 QoQ

Shares Held

18,869,907

+70.3% QoQ

Ownership

11.1%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

of 139 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

T. Rowe Price Investment Management, Inc. holds $12,244,164,567 across 51 Biotechnology names. CABA ranks #32 (0.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASND	Ascendis Pharma A/S	6,754,846	$1,801,652,525
2	ALNY	Alnylam Pharmaceuticals, Inc.	5,642,173	$1,698,463,338
3	CYTK	Cytokinetics Inc	18,718,498	$1,594,628,844
4	KYMR	Kymera Therapeutics, Inc.	6,257,261	$717,520,118
5	PCVX	Vaxcyte, Inc.	12,207,450	$709,619,068
6	DYN	Dyne Therapeutics, Inc.	30,912,287	$686,561,894
7	CGON	CG Oncology, Inc.	6,616,899	$470,130,673
8	IMNM	Immunome Inc.	19,676,883	$416,953,150

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$58,685,410	18,869,907	+70.3%	Shares	Sole	2026-08-14
2026-06-30	$58,685,410	18,869,907	+82.1%	Shares	Sole	2026-08-14
2026-03-31	$29,805,213	11,080,005	+176.7%	Shares	Sole	2026-05-15
2025-12-31	$8,768,860	4,004,046	-52.1%	Shares	Sole	2026-02-17
2025-10-31	$37,400,776	10,360,326	—	Shares	Sole	2025-11-07
2025-09-30	$19,568,224	8,362,489	+23.1%	Shares	Sole	2025-11-14
2025-06-30	$10,326,557	6,793,788	+71.1%	Shares	Sole	2025-08-14
2025-03-31	$5,498,486	3,970,026	-2.6%	Shares	Sole	2025-05-14
2024-12-31	$9,247,993	4,074,006	+10.9%	Shares	Sole	2025-02-14
2024-09-30	$17,339,977	3,673,724	-5.3%	Shares	Sole	2024-11-14
2024-06-30	$29,009,010	3,878,210	+57.0%	Shares	Sole	2024-08-14
2024-03-31	$42,146,610	2,470,493	+34.8%	Shares	Sole	2024-05-15
2023-12-31	$41,605,785	1,832,854	—	Shares	Sole	2024-02-14
No filing history on record for this holder in this stock.