Company · Ownership research

Cabaletta Bio, Inc. CABA

CIK 0001759138 · CUSIP 12674W109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 12674W109 (CABA), not CUSIP 12674W909 (CABA), CUSIP 12674W959 (CABA), and does not merge CUSIPs.

This page lists the top 20 of 143 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	JENNISON ASSOCIATES LLC CIK 53417 · View history	$41.49M 5,546,467 shares	0.03%	+2.12M(+62.00%)Added	SEC filing ↗ Aug 5, 2024	▾
02	BlackRock Inc. CIK 1364742 · View history	$35.58M 4,756,219 shares	0.00%	+699.11K(+17.20%)Added	SEC filing ↗ Aug 13, 2024	▾
03	T. Rowe Price Investment Management, Inc. CIK 1897612 · View history	$29.01M 3,878,210 shares	0.02%	+1.41M(+57.00%)Added	SEC filing ↗ Aug 14, 2024	▾
04	ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history	$22.71M 3,036,645 shares	0.04%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
05	ALKEON CAPITAL MANAGEMENT LLC CIK 1230239 · View history	$19.58M 2,618,000 shares	0.10%	+2.12M(+423.60%)Added	SEC filing ↗ Aug 14, 2024	▾
06	FRED ALGER MANAGEMENT, LLC CIK 3520 · View history	$18.87M 2,522,882 shares	0.09%	-587.43K(-18.90%)Reduced	SEC filing ↗ Aug 14, 2024	▾
07	VANGUARD GROUP INC CIK 102909 · View history	$17.70M 2,366,057 shares	0.00%	+89.83K(+3.90%)Added	SEC filing ↗ Aug 13, 2024	▾
08	STATE STREET CORP CIK 93751 · View history	$15.00M 2,005,801 shares	0.00%	-1.74M(-46.40%)Reduced	SEC filing ↗ Aug 14, 2024	▾
09	Bain Capital Life Sciences Investors, LLC CIK 1703031 · View history	$12.34M 1,649,964 shares	1.35%	+32.60K(+2.00%)Added	SEC filing ↗ Aug 12, 2024	▾
10	VR Adviser, LLC CIK 1615982 · View history	$11.70M 1,563,952 shares	0.75%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
11	Polar Capital Holdings Plc CIK 1837309 · View history	$9.38M 1,253,500 shares	0.06%	+3.50K(+0.30%)Added	SEC filing ↗ Aug 14, 2024	▾
12	Sofinnova Investments, Inc. CIK 1631134 · View history	$9.13M 1,220,400 shares	0.58%	+790.65K(+184.00%)Added	SEC filing ↗ Aug 9, 2024	▾
13	STEMPOINT CAPITAL LP CIK 1952142 · Amended · View history	$8.81M 1,178,105 shares	2.59%	+174.19K(+17.40%)Added	SEC filing ↗ Aug 13, 2024	▾
14	COMMODORE CAPITAL LP CIK 1831942 · View history	$8.23M 1,100,000 shares	0.56%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
15	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$7.26M 970,573 shares	0.00%	+197.48K(+25.50%)Added	SEC filing ↗ Aug 9, 2024	▾
16	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$7.16M 956,689 shares	0.00%	+933.03K(+3,944.30%)Added	SEC filing ↗ Dec 26, 2024	▾
17	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$5.22M 698,317 shares	0.00%	+238.95K(+52.00%)Added	SEC filing ↗ Aug 14, 2024	▾
18	VICTORY CAPITAL MANAGEMENT INC CIK 1040188 · View history	$4.74M 634,217 shares	0.00%	+262.59K(+70.70%)Added	SEC filing ↗ Aug 5, 2024	▾
19	PERCEPTIVE ADVISORS LLC CIK 1224962 · Amended · View history	$4.38M 585,045 shares	0.11%	-1.13M(-65.90%)Reduced	SEC filing ↗ Aug 16, 2024	▾
20	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$4.36M 582,275 shares	0.00%	-30.12K(-4.90%)Reduced	SEC filing ↗ Aug 14, 2024	▾

Showing 20 / 143 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

143

Cancelled or null records excluded

Disclosed shares

50,801,749

Not deduplicated across managers

Disclosed value

$380.00M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Cabaletta Bio, Inc. · Q2 2024

Explore all 143 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.