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The company

Cabaletta Bio, Inc.

CABA · Nasdaq

Health CareBiotechnologyNot moving yet

CABA stood above a rising 150-day average in 39 of the last 52 weekly readings, and has been out of that trend for the last 6 weeks. It is 49.4% below that average now. Biotechnology: 16% of its 561 stocks in an uptrend (−15 points in four weeks); Health Care: 26% (−10 points in four weeks).

SEC filings

Statistics

Rotation: Not moving yet
Weeks in an uptrend: out for 6
Industry in uptrend: 16% -15 in 4 wk
Insider buys, 12 months: $592K
Insider sales, 12 months: $0
Officials’ trades on record: 0
Institutions holding: 136 (+34)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 39 of 52 weeks.

20 Apr – 19 Oct

Biotechnology: Few of its stocks are in an uptrend and the share has fallen sharply over four weeks. Health Care: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

No member of Congress or official has disclosed a trade in it.

Insiders

Buy orders, 12 months8

Sale orders, 12 months0

Buyers · sellers8 · 0

Who	Did	Shares	Traded
Michael GerardGeneral Counsel	bought	6,600at $2.27	21 Jan 2026filed 21 Jan 2026
Mark SimonDirector	bought	11,061at $2.28	21 Jan 2026filed 21 Jan 2026
Steven NichtbergerPresident & CEO	bought	45,000at $2.24	21 Jan 2026filed 21 Jan 2026
Catherine BollardDirector	bought	4,405at $2.27	21 Jan 2026filed 21 Jan 2026
Steve GavelChief Commercial Officer	bought	22,170at $2.27	21 Jan 2026filed 21 Jan 2026
Shawn TomaselloDirector	bought	22,725at $2.21	21 Jan 2026filed 21 Jan 2026
Gwendolyn BinderPresident, Science & Tech.	bought	11,312at $2.19	21 Jan 2026filed 21 Jan 2026
David J. ChangChief Medical Officer	bought	8,800at $2.26	21 Jan 2026filed 21 Jan 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders136+34 on the quarter

New · exited55 · 21

Reported value$416.8M

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
JENNISON ASSOCIATES LLCadded · filed 3 Aug 2026	20,033,730$62.3M	+11,063,152+123.3%
Bain Capital Life Sciences Investors, LLCadded · filed 14 Aug 2026	17,241,445$53.6M	+7,564,320+78.2%
BlackRock, Inc.added · filed 7 Aug 2026	10,754,701$33.4M	+8,381,698+353.2%
ADAGE CAPITAL PARTNERS GP, L.L.C.added · filed 14 Aug 2026	9,174,758$28.5M	+345,000+3.9%
STATE STREET CORPadded · filed 7 Aug 2026	7,839,305$24.4M	+7,369,327+1568.0%
VANGUARD CAPITAL MANAGEMENT LLCadded · filed 13 Aug 2026	7,227,018$22.5M	+3,198,027+79.4%
Cormorant Asset Management, LPreduced · filed 14 Aug 2026	5,000,000$15.6M	-500,000−9.1%
Woodline Partners LPadded · filed 14 Aug 2026	4,200,142$13.1M	+2,949,900+235.9%
NORGES BANKnew · filed 12 Aug 2026	4,112,401$12.8M	+4,112,401
Opaleye Management Inc.added · filed 14 Aug 2026	3,863,800$12.0M	+2,483,800+180.0%