T. Rowe Price Investment Management’s Cabaletta Bio CABA Stock Holding History

T. Rowe Price Investment Management’s Portfolio CABA Stock Details CABA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$29.8M	Buy	11,080,005 +1,221,748	+12%	+$3.39M	0.02%	423
2025 Q4	$21.6M	Buy	9,858,257 +1,495,768	+18%	+$3.71M	0.01%	480
2025 Q3	$19.6M	Buy	8,362,489 +1,568,701	+23%	+$2.69M	0.01%	498
2025 Q2	$10.3M	Buy	6,793,788 +2,823,762	+71%	+$4.4M	0.01%	555
2025 Q1	$5.5M	Sell	3,970,026 -103,980	-3%	-$222K	﹤0.01%	585
2024 Q4	$9.25M	Buy	4,074,006 +400,282	+11%	+$1.41M	0.01%	557
2024 Q3	$17.3M	Sell	3,673,724 -204,486	-5%	-$1.18M	0.01%	528
2024 Q2	$29M	Buy	3,878,210 +1,407,717	+57%	+$17.3M	0.02%	462
2024 Q1	$42.1M	Buy	2,470,493 +637,639	+35%	+$13.7M	0.03%	420
2023 Q4	$41.6M	Buy	+1,832,854	New	+$30.8M	0.03%	409

Other funds holding CABA

BCLSI

Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

CAM

Cormorant Asset Management Boston, Massachusetts $1.99B AUM 737.95% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

T. Rowe Price Investment Management's CABA Position: Q1 2026 in Review

T. Rowe Price Investment Management increased its Cabaletta Bio (CABA) stake by 12% in Q1 2026, buying an estimated $3.39M and bringing the position to 11,080,005 shares worth $29.8M. The position accounts for 0.02% of the portfolio, ranked #423.

T. Rowe Price Investment Management first reported a position in CABA in Q4 2023 and has held it in 10 quarters since. The position peaked at $42.1M in Q1 2024. 108 funds tracked by Wall St. Rank hold CABA as of Q1 2026.

T. Rowe Price Investment Management held 11,080,005 shares of Cabaletta Bio worth $29.8M as of Q1 2026.
T. Rowe Price Investment Management bought 1,221,748 Cabaletta Bio shares in Q1 2026, an estimated $3.39M.
Cabaletta Bio made up 0.02% of T. Rowe Price Investment Management's portfolio in Q1 2026, its #423 holding.
T. Rowe Price Investment Management first reported a position in Cabaletta Bio in Q4 2023 and has held it in 10 quarters since.
T. Rowe Price Investment Management's Cabaletta Bio position peaked at $42.1M in Q1 2024.
108 funds tracked by Wall St. Rank held Cabaletta Bio as of Q1 2026.

Based on T. Rowe Price Investment Management's 13F filing for Q1 2026, filed 15 May 2026.