Cabaletta Bio Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 22.7%.

Top 25 shareholders own 89.35% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
11.4%	Jennison Associates LLC	5,546,467	US$24.2m	62%	0.02%
9.74%	BlackRock, Inc.	4,756,219	US$20.8m	17.2%	no data
9.13%	T. Rowe Price Group, Inc.	4,460,485	US$19.5m	44.7%	no data
6.69%	Adage Capital Management, L.P.	3,266,645	US$14.3m	0%	0.03%
5.65%	Bain Capital Life Sciences Investors, LLC	2,760,888	US$12.1m	67.3%	1.28%
5.16%	Fred Alger Management, LLC	2,522,882	US$11.0m	-18.9%	0.06%
4.84%	The Vanguard Group, Inc.	2,366,057	US$10.3m	3.95%	no data
4.54%	Alkeon Capital Management, LLC	2,216,650	US$9.7m	432%	0.07%
4.11%	State Street Global Advisors, Inc.	2,005,801	US$8.8m	-46.4%	no data
3.2%	VR Adviser, LLC	1,563,952	US$6.8m	0%	0.3%
2.76%	Steven Nichtberger	1,349,483	US$5.9m	0%	no data
2.57%	Polar Capital Holdings Plc	1,253,500	US$5.5m	0.28%	0.02%
2.5%	Sofinnova Investment, Inc.	1,220,400	US$5.3m	184%	0.34%
2.41%	StemPoint Capital LP	1,178,105	US$5.1m	17.4%	1.51%
2.25%	Commodore Capital LP	1,100,000	US$4.8m	0%	0.31%
1.99%	Geode Capital Management, LLC	970,573	US$4.2m	25.5%	no data
1.83%	JP Morgan Asset Management	892,988	US$3.9m	106,000%	no data
1.43%	Millennium Management LLC	698,317	US$3.1m	52%	no data
1.3%	Victory Capital Management Inc.	634,217	US$2.8m	70.7%	no data
1.2%	Perceptive Advisors LLC	585,045	US$2.6m	-65.9%	0.06%
1.01%	Lynx1 Capital Management LP	492,103	US$2.2m	-76.4%	0.88%
0.97%	UBS Asset Management AG	471,709	US$2.1m	112%	no data
0.95%	Deerfield Management Company, L.P. Series C	464,252	US$2.0m	-63.1%	0.03%
0.91%	Redmile Group, LLC	442,826	US$1.9m	0%	0.09%
0.87%	Integral Health Asset Management, LLC	425,000	US$1.9m	0%	0.18%