Cabaletta Bio (CABA) Institutional Ownership

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Number of Institutional Buyers (last 12 months): 66
Total Institutional Inflows (last 12 months): $79.24M

Number of Institutional Sellers (last 12 months): 19
Total Institutional Outflows (last 12 months): $33.48M

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CABA Institutional Buying and Selling by Quarter

Cabaletta Bio Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
8/26/2026	HighTower Advisors LLC	11,054	$34K	0.0%	N/A	0.007%
8/22/2026	Raiffeisen Bank International AG	430,000	$1.34M	0.0%	-4.4%	0.254%
8/20/2026	Susquehanna Fundamental Investments LLC	152,964	$476K	0.0%	N/A	0.090%
8/20/2026	Two Sigma Securities LLC	26,663	$83K	0.0%	N/A	0.016%
8/19/2026	Wellington Management Group LLP	286,212	$890K	0.0%	+15.6%	0.169%
8/18/2026	Stonepine Capital Management LLC	917,100	$2.85B	1.5%	N/A	0.541%
8/17/2026	Almitas Capital LLC	125,900	$392K	0.1%	N/A	0.074%
8/17/2026	Bank of America Corp DE	493,314	$1.53M	0.0%	N/A	0.291%
8/14/2026	ADAR1 Capital Management LLC	50,000	$156K	0.0%	N/A	0.031%
8/14/2026	Legal & General Group Plc	10,918	$34K	0.0%	N/A	0.007%
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8/14/2026	The Manufacturers Life Insurance Company	182,055	$566K	0.0%	N/A	0.112%
8/13/2026	Clear Harbor Asset Management LLC	19,500	$61K	0.0%	N/A	0.012%
8/12/2026	Quantbot Technologies LP	37,208	$116K	0.0%	N/A	0.023%
8/12/2026	Callan Family Office LLC	17,434	$54K	0.0%	N/A	0.011%
8/11/2026	Blue Owl Capital Holdings LP	714,710	$2.22M	0.3%	N/A	0.438%
8/11/2026	E Fund Management Co. Ltd.	20,601	$64K	0.0%	N/A	0.013%
8/8/2026	Wealthfront Advisers LLC	24,389	$76K	0.0%	N/A	0.015%
8/7/2026	BlackRock Inc.	10,754,701	$33.45M	0.0%	N/A	6.596%
8/7/2026	Deutsche Bank AG	110,962	$345K	0.0%	N/A	0.068%
8/6/2026	Bank of New York Mellon Corp	304,819	$948K	0.0%	N/A	0.187%
8/6/2026	GSA Capital Partners LLP	668,563	$2.08M	0.1%	N/A	0.410%
5/19/2026	Bank of America Corp DE	269,257	$724K	0.0%	+1,770.9%	0.242%
5/16/2026	SummitTX Capital L.P.	12,522	$34K	0.0%	N/A	0.011%
5/15/2026	OMERS ADMINISTRATION Corp	54,100	$146K	0.0%	-43.3%	0.049%
5/14/2026	Renaissance Technologies LLC	2,036,663	$5.48M	0.0%	+33.8%	1.830%
5/7/2026	Dimensional Fund Advisors LP	740,648	$1.99M	0.0%	+63.8%	0.665%
5/6/2026	Jennison Associates LLC	8,970,578	$24.13M	0.0%	+0.7%	8.058%
4/30/2026	Kestra Advisory Services LLC	11,750	$32K	0.0%	N/A	0.011%
4/27/2026	Private Advisor Group LLC	18,025	$48K	0.0%	+22.4%	0.016%
4/21/2026	Grey Ledge Advisors LLC	20,000	$54K	0.0%	N/A	0.018%
2/19/2026	T. Rowe Price Investment Management Inc.	9,858,257	$21.59M	0.0%	+17.9%	10.241%
2/19/2026	Invesco Ltd.	189,195	$414K	0.0%	+54.1%	0.197%
2/18/2026	Mercer Global Advisors Inc. ADV	26,510	$58K	0.0%	N/A	0.028%
2/18/2026	KVP Capital Advisors LP	505,431	$1.11M	1.1%	N/A	0.525%
2/18/2026	XTX Topco Ltd	155,387	$340K	0.0%	-45.3%	0.161%
2/18/2026	Ikarian Capital LLC	900,000	$1.97M	0.2%	N/A	0.935%
2/18/2026	Superstring Capital Management LP	2,253,550	$4.94M	2.6%	+45.9%	2.341%
2/18/2026	Quadrature Capital Ltd	66,377	$145K	0.0%	+54.7%	0.069%
2/18/2026	Opaleye Management Inc.	900,000	$1.97M	0.3%	+11.3%	0.935%
2/18/2026	Millennium Management LLC	2,736,912	$5.99M	0.0%	+298.5%	2.843%
Trump Takes Emergency Action - Plus Elon Musk's New Venture (Ad) Elon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. Trump has issued emergency support to accelerate the rollout, and it's already live in multiple states. The Financial Times reports Sam Altman is personally calling people to build this for OpenAI. A few little-known companies control the entire supply chain - meaning anyone who wants access must go through them. Their stocks are available to buy right now. See which companies control the supply chain behind this emerging tech
2/18/2026	Cormorant Asset Management LP	4,400,000	$9.64M	0.4%	-12.0%	4.571%
2/18/2026	Balyasny Asset Management L.P.	51,552	$113K	0.0%	N/A	0.054%
2/18/2026	Boothbay Fund Management LLC	243,445	$533K	0.0%	N/A	0.253%
2/18/2026	Bridgeway Capital Management LLC	130,675	$286K	0.0%	+36.6%	0.136%
2/18/2026	683 Capital Management LLC	388,562	$851K	0.0%	N/A	0.404%
2/17/2026	Schonfeld Strategic Advisors LLC	1,204,070	$2.64M	0.0%	+15.3%	1.251%
2/17/2026	Price T Rowe Associates Inc. MD	1,093,959	$2.40M	0.0%	-15.5%	1.136%
2/17/2026	T. Rowe Price Investment Management Inc.	4,004,046	$8.77M	0.0%	-52.1%	4.160%
2/17/2026	Fred Alger Management LLC	28,021	$61K	0.0%	-53.2%	0.029%
2/17/2026	Graham Capital Management L.P.	151,451	$332K	0.0%	N/A	0.157%
2/16/2026	Squarepoint Ops LLC	149,094	$327K	0.0%	+1,156.3%	0.155%
2/16/2026	OMERS ADMINISTRATION Corp	95,400	$209K	0.0%	N/A	0.099%
2/16/2026	Barclays PLC	220,696	$483K	0.0%	+7,058.5%	0.229%
2/13/2026	Marshall Wace LLP	959,076	$2.10M	0.0%	-27.7%	0.996%
2/13/2026	Hudson Bay Capital Management LP	138,729	$304K	0.0%	N/A	0.144%
2/13/2026	Schroder Investment Management Group	756,637	$1.63M	0.0%	N/A	0.786%
2/13/2026	State Street Corp	425,478	$932K	0.0%	+12.9%	0.442%
2/13/2026	Dynamic Technology Lab Private Ltd	66,789	$146K	0.0%	N/A	0.069%
2/12/2026	Renaissance Technologies LLC	1,522,583	$3.33M	0.0%	+13.7%	1.582%
2/12/2026	Dimensional Fund Advisors LP	452,039	$990K	0.0%	N/A	0.470%
2/12/2026	Ensign Peak Advisors Inc	550,000	$1.20M	0.0%	N/A	0.571%
2/12/2026	Raiffeisen Bank International AG	450,000	$968K	0.0%	+28.6%	0.467%
2/11/2026	Letko Brosseau & Associates Inc.	90,475	$198K	0.0%	N/A	0.094%
2/11/2026	LPL Financial LLC	42,615	$93K	0.0%	N/A	0.044%
2/10/2026	Clear Harbor Asset Management LLC	19,500	$43K	0.0%	N/A	0.020%
2/9/2026	Geode Capital Management LLC	1,085,816	$2.38M	0.0%	+18.0%	1.128%
2/5/2026	ANTIPODES PARTNERS Ltd	17,187	$38K	0.0%	N/A	0.018%
1/30/2026	Jennison Associates LLC	8,905,699	$19.50M	0.0%	+4.8%	9.252%
1/29/2026	China Universal Asset Management Co. Ltd.	15,686	$34K	0.0%	N/A	0.016%
1/16/2026	Matauro LLC	55,108	$121K	0.0%	N/A	0.057%
1/9/2026	SG Americas Securities LLC	30,629	$67K	0.0%	+44.0%	0.032%
1/1/2026	JPMorgan Chase & Co.	537,649	$1.26M	0.0%	+565.4%	0.559%
11/18/2025	Heights Capital Management Inc.	2,084,202	$4.88M	1.3%	-33.7%	2.165%
11/17/2025	Woodline Partners LP	2,135,348	$5.00M	0.0%	+75.2%	2.218%
11/17/2025	XTX Topco Ltd	284,299	$665K	0.0%	+192.3%	0.295%
11/17/2025	Alyeska Investment Group L.P.	1,300,000	$3.04M	0.0%	-72.9%	1.351%
11/17/2025	Qube Research & Technologies Ltd	89,157	$209K	0.0%	N/A	0.093%
11/17/2025	Millennium Management LLC	686,813	$1.61M	0.0%	-19.7%	0.713%
11/17/2025	Bank of America Corp DE	268,058	$627K	0.0%	-46.2%	0.278%
11/17/2025	Almitas Capital LLC	387,491	$907K	0.2%	+5.4%	0.403%
11/14/2025	Schonfeld Strategic Advisors LLC	1,044,169	$2.44M	0.0%	-29.7%	1.085%
11/14/2025	Burkehill Global Management LP	700,000	$1.64M	0.1%	-63.2%	0.727%
11/14/2025	Two Sigma Investments LP	470,475	$1.10M	0.0%	+86.4%	0.489%
11/14/2025	Bridgeway Capital Management LLC	95,675	$224K	0.0%	+109.5%	0.099%
11/14/2025	Squarepoint Ops LLC	11,868	$28K	0.0%	-83.4%	0.012%
11/13/2025	UBS Group AG	405,120	$948K	0.0%	-14.2%	0.421%
11/13/2025	Jefferies Financial Group Inc.	47,500	$111K	0.0%	-97.6%	0.049%
11/10/2025	Raiffeisen Bank International AG	350,000	$833K	0.0%	+16.7%	0.383%
11/7/2025	Vanguard Group Inc.	4,190,759	$9.81M	0.0%	+21.4%	4.582%
11/7/2025	JPMorgan Chase & Co.	537,649	$1.26M	0.0%	+565.4%	0.588%
Trump Takes Emergency Action - Plus Elon Musk's New Venture (Ad) Elon Musk has quietly launched a new venture - one that has nothing to do with rockets, EVs, or Neuralink. Trump has issued emergency support to accelerate the rollout, and it's already live in multiple states. The Financial Times reports Sam Altman is personally calling people to build this for OpenAI. A few little-known companies control the entire supply chain - meaning anyone who wants access must go through them. Their stocks are available to buy right now. See which companies control the supply chain behind this emerging tech
11/4/2025	Jones Financial Companies Lllp	20,007	$47K	0.0%	N/A	0.022%
11/3/2025	Federated Hermes Inc.	112,028	$262K	0.0%	-67.5%	0.122%
10/31/2025	Vanguard Personalized Indexing Management LLC	22,151	$52K	0.0%	-11.2%	0.024%
10/16/2025	CRA Financial Services LLC	15,000	$35K	0.0%	+36.4%	0.016%
8/15/2025	Tower Research Capital LLC TRC	51,036	$78K	0.0%	+695.6%	0.056%
8/15/2025	BNP Paribas Financial Markets	49,066	$75K	0.0%	-20.1%	0.097%
8/15/2025	Bain Capital Life Sciences Investors LLC	9,677,125	$14.71M	1.8%	+250.5%	19.072%
8/15/2025	Bank of America Corp DE	498,243	$757K	0.0%	-49.4%	0.982%
8/15/2025	Adage Capital Partners GP L.L.C.	8,829,758	$13.42M	0.0%	+142.9%	17.402%
8/14/2025	The Manufacturers Life Insurance Company	39,770	$60K	0.0%	-30.3%	0.078%

CABA Institutional Ownership - Frequently Asked Questions

During the previous two years, 114 institutional investors and hedge funds held shares of Cabaletta Bio. The most heavily invested institutionals were Stonepine Capital Management LLC ($2.85B), BlackRock Inc. ($33.45M), Jennison Associates LLC ($24.13M), T. Rowe Price Investment Management Inc. ($21.59M), Bain Capital Life Sciences Investors LLC ($14.71M), Adage Capital Partners GP L.L.C. ($13.42M), and Vanguard Group Inc. ($9.81M).Learn more on Cabaletta Bio's institutional investors.

Of the 98 institutional investors that purchased Cabaletta Bio's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($10.75M), Bain Capital Life Sciences Investors LLC ($6.92M), Adage Capital Partners GP L.L.C. ($5.79M), Jennison Associates LLC ($4.15M), Millennium Management LLC ($2.05M), Jefferies Financial Group Inc. ($2.00M), and T. Rowe Price Investment Management Inc. ($1.90M).

Institutional investors have bought a total of 29,527,923 shares in the last 24 months. This purchase volume represents approximately $79.24M in transactions.

Of the 19 institutional investors that sold Cabaletta Bio's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($4.36M), Alyeska Investment Group L.P. ($3.50M), Jefferies Financial Group Inc. ($1.95M), Burkehill Global Management LP ($1.20M), Heights Capital Management Inc. ($1.06M), Cormorant Asset Management LP ($600K), and Schonfeld Strategic Advisors LLC ($440.67K).

Institutional investors have sold a total of 14,659,189 shares in the last 24 months. This volume of shares sold represents approximately $33.48M in transactions.

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Institutional ownership data for NASDAQ:CABA is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/26/2026. New 13F filings are added each quarter as they're published.

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Cabaletta Bio (CABA) Institutional Ownership

CABA Institutional Buying and Selling by Quarter

Cabaletta Bio Major Shareholders & Ownership History

CABA Institutional Ownership - Frequently Asked Questions

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Cabaletta Bio (CABA) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Cabaletta Bio (NASDAQ:CABA)

CABA Institutional Buying and Selling by Quarter

Cabaletta Bio Major Shareholders & Ownership History

CABA Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of CABA shares?

Which institutional investors have been buying Cabaletta Bio's stock?

How much institutional buying is happening at Cabaletta Bio?

Which of Cabaletta Bio's major shareholders have been selling company stock?

How much institutional selling is happening at Cabaletta Bio?

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