WELLINGTON MANAGEMENT GROUP LLP

CIK

902219

City

Boston

State / Country

MA

Stock

CABA — Cabaletta Bio, Inc.

Top Portfolio Positions

1,690 positions · $527,586,893,040 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio	Open
NVDA	Nvidia Corp Technology	133,857,990	$23,344,833,450	4.42%
MSFT	Microsoft Corp Technology	52,742,167	$19,523,567,954	3.70%
AAPL	Apple Inc. Technology	65,033,441	$16,504,836,987	3.13%
AVGO	Broadcom Inc. Technology	49,687,982	$15,378,927,305	2.91%
GOOGL	Alphabet Inc. Communication Services	47,620,485	$13,693,746,664	2.60%
AMZN	Amazon Com Inc Consumer Cyclical	62,407,139	$12,997,534,834	2.46%
LLY	ELI LILLY & Co Healthcare	13,427,061	$12,349,807,890	2.34%
MRK	Merck & Co., Inc. Healthcare	84,314,971	$10,142,247,857	1.92%
META	Meta Platforms, Inc. Communication Services	11,690,324	$6,688,385,065	1.27%
MA	Mastercard Inc Financial Services	13,001,582	$6,496,370,458	1.23%

Portfolio Trend

25 quarters · across all stocks

Holdings in CABA

Compact Export CSV

Shares Held

Position Value (USD)

11 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$666,201	247,659	+37.5%	Shares	Defined	2026-05-15
2024-12-31	$408,956	180,157	+14.7%	Shares	Defined	2025-02-12
2024-09-30	$741,280	157,051	-1.1%	Shares	Defined	2024-11-14
2024-06-30	$1,187,890	158,809	-84.2%	Shares	Defined	2024-08-14
2024-03-31	$17,200,895	1,008,259	+86.8%	Shares	Defined	2024-05-15
2023-12-31	$12,255,184	539,876	+119.0%	Shares	Defined	2024-02-12
2023-09-30	$3,752,795	246,570	-53.9%	Shares	Defined	2023-11-14
2021-09-30	$6,501,952	534,700	0.0%	Shares	Defined	2021-11-15
2021-06-30	$4,598,420	534,700	+193.8%	Shares	Defined	2021-08-16
2021-03-31	$2,020,200	182,000	+65.9%	Shares	Defined	2021-05-17
2020-12-31	$1,369,056	109,700	—	Shares	Defined	2021-02-12
No 13F history on record for this holder in this stock.