SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

CABA

Cabaletta Bio Inc.
NASDAQHealth Care

Latest close: 1.41 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Sep 14, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  2. Aug 13, 2026Quarterly report · 10-QFiled by the company itself.Open the filing ↗
  3. Aug 13, 2026Material event · 8-KFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record41317 flagged findings
Reported transactions (Form 4)73since May 19, 2023
Corporate events (8-K)12since May 28, 2020

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-05-14share offering or dilution eventrecentOpen filing ↗
    “…a commercial supply agreement with Cellares under which Cellares would supply rese-cel using Cellares’ automated Cell Shuttle TM and…”
    +1 more passage from the same document
    • “…with Cellares under which Cellares would supply rese-cel using Cellares’ automated Cell Shuttle TM and through future…”
  • 2026-05-14capital return (buybacks/dividends)recentOpen filing ↗
    “…date using a relative fair value allocation method. The pre-funded warrants and common stock warrants are equity classified…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 413)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Sep 14, 268-K ↗Current report · Other events
  • Aug 14, 26SCHEDULE 13G/A ↗Passive stake · T. Rowe Price Investment Management, Inc. · 11.6% · event on Jun 30, 26 · amendment
  • Aug 14, 26SCHEDULE 13G/A ↗Passive stake · Bain Capital Life Sciences Opportunities III, LP · 10.0% · event on Jun 30, 26 · amendment
  • Aug 14, 26SCHEDULE 13G/A ↗Passive stake · Cormorant Asset Management, LP · 6.0% · event on Jun 30, 26 · amendment
  • Aug 13, 2610-Q ↗Quarterly report
  • Aug 13, 268-K ↗Current report · Results
  • Aug 12, 26SCHEDULE 13G ↗Passive stake · Norges Bank · 5.4% · event on Jun 30, 26
  • Aug 12, 26SCHEDULE 13G/A ↗Passive stake · Adage Capital Management, L.P. · 8.4% · event on Jun 30, 26 · amendment
  • Jul 31, 26SCHEDULE 13G ↗Passive stake · Vanguard Capital Management · 5.1% · event on Jun 30, 26
  • Jul 27, 26SCHEDULE 13G ↗Passive stake · BlackRock, Inc. · 5.9% · event on Jun 30, 26
  • Jul 23, 26SCHEDULE 13G/A ↗Passive stake · Millennium Management LLC · 1.3% · event on Jun 30, 26 · amendment
  • Jun 11, 268-K ↗Current report · Bylaws or fiscal year change · Shareholder vote results
  • Insider transaction · 5 Form 4 filingsshow all 5hide
  • Jun 5, 26SCHEDULE 13G/A ↗Passive stake · PRUDENTIAL FINANCIAL INC · 11.4% · event on May 31, 26 · amendment
  • Jun 4, 26SCHEDULE 13G/A ↗Passive stake · Jennison Associates LLC · 11.4% · event on May 29, 26 · amendment
  • Jun 3, 268-K ↗Current report · Communication to the market · Other events
  • Jun 1, 26DEFA14A ↗Shareholder meeting and votes
  • May 15, 26SCHEDULE 13G/A ↗Passive stake · Cormorant Asset Management, LP · 9.0% · event on Mar 31, 26 · amendment
  • May 14, 2610-Q ↗Quarterly report
  • May 14, 268-K ↗Current report · Results
  • May 14, 268-K ↗Current report · Communication to the market · Other events

413 filings on record, the oldest from Aug 28, 19.

Listing the 25 most recent filings of the 413 on record.

8-Ks, explained

Structure8Governance4
  • May 4, 26StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Jun 12, 25StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Jun 11, 25StructureA material agreement was terminated+3 more in the same filing8-K 1.02 ↗
  • May 19, 25GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Sep 30, 24StructureEntered a material agreement8-K 1.01 ↗
  • Jul 24, 23GovernanceA senior executive left or was appointed+3 more in the same filing8-K 5.02 ↗
  • Jun 1, 23GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Structure3 material agreements entered2022 – 2023show all 3hide
    • May 18, 23StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Dec 12, 22StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
    • Oct 11, 22StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Jun 28, 21GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • May 28, 20StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

show 6 more holdershide
  • Cormorant Asset Management, LP6.0%Jun 30, 26SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
  • BlackRock, Inc.5.9%Jun 30, 26SCHEDULE 13G ↗
  • Norges Bank5.4%Jun 30, 26SCHEDULE 13G ↗
  • Vanguard Capital Management5.1%Jun 30, 26SCHEDULE 13G ↗
  • Alyeska Investment Group, L.P.4.7%Dec 31, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • Millennium Management LLC1.3%Jun 30, 26SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Jan 21, 26Buy$15KMichael GerardGeneral Counsel↗
  • Jan 21, 26Buy$25KMark Simon↗
  • Jan 21, 26Buy$101KSteven NichtbergerPresident & CEO↗
  • Jan 21, 26Buy$10KCatherine Bollard↗
  • Jan 21, 26Buy$50KSteve GavelChief Commercial Officer↗
  • Jan 21, 26Buy$50KShawn Tomasello↗
  • Jan 21, 26Buy$25KGwendolyn BinderPresident, Science & Tech.↗
  • Jan 21, 26Buy$20KDavid J. ChangChief Medical Officer↗
  • Jan 19, 24Sell$201KGwendolyn BinderSee Remarks↗
  • Jan 19, 24Sell$14KGwendolyn BinderSee Remarks↗
  • Dec 19, 23Sell$171KGwendolyn BinderSee Remarks↗
  • Dec 19, 23Sell$70KGwendolyn BinderSee Remarks↗

There are 12 more transactions in this stretch.

Stock compensation, tax and giftsshow the 9 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Jan 19, 24Compensation$11KGwendolyn BinderSee Remarks↗
  • Dec 19, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • Nov 20, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • Oct 19, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • Sep 19, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • Aug 21, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • Jul 19, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • Jun 20, 23Compensation$11KGwendolyn BinderSee Remarks↗
  • May 19, 23Compensation$22KGwendolyn BinderSee Remarks↗

The full record holds 33 transactions and goes back to Jan 18, 23.

Its sector and its market

Cabaletta Bio Inc. among Health Care companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
Series with incidents in the period; the chart shows what could be kept.
SEC records
413 documents on file, from Aug 28, 2019 to Sep 14, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

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It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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