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

TECX

Tectonic Therapeutic Inc.
NASDAQHealth Care

Latest close: 20.65 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 30, 2026Reported sale · Form 4Peter McNamara, Chief Scientific Officer · $12.3KOpen the filing ↗
  2. Sep 30, 2026Notice of sale · Form 144PETER MCNAMARA · Officer · $11.5KOpen the filing ↗
  3. Sep 29, 2026Material event · 8-KFiled by the company itself.Open the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record53718 flagged findings
Reported transactions (Form 4)80since Feb 4, 2025 · and 2 other holdings
Corporate events (8-K)30since Feb 13, 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.

Identity

Formerly traded as AVRO.

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.

  • 2026-05-07share offering or dilution eventrecentOpen filing ↗
    “…Deficit Total Stockholders’ Equity Balance as of January 1, 2026 18,738,249 $ 2 $ 474,160 $ ( 96 ) $ ( 222,737 ) $ 251,329 Issuance…”
    +1 more passage from the same document
    • “…expenses and other current liabilities 1,633 ( 3,417 ) Operating lease liabilities ( 147 ) ( 553 ) Net cash used in operating…”
  • 2026-05-07Department of Justice inquiryrecentOpen filing ↗
    “…as well as at the federal and local levels. The evolving patchwork of differing state and federal privacy and data security laws…”

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

Reverse splits in 5 years

1 reverse split in 5 years (1:12 on Jun 21, 2024) · 1:12 cumulative

The other times: of 818 securities that did their first reverse split in 5 years, a year later the median was worth 0.53× the price on the day of the split; 382 lost more than half and 209 rose (809 with a price a year later).

Our own series, not the whole market: based on the splits we have on record (provider and SEC); an unrecorded one does not count. Historical distribution, not a prediction.

SEC record

SEC dossier

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

The 25 most recent filings (of 537)

Everything filed

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

537 filings on record, the oldest from May 7, 18.

Listing the 25 most recent filings of the 537 on record.

8-Ks, explained

Stress5Structure12Governance19
  • Apr 23, 26GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Feb 24, 26GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Feb 3, 25StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Jul 5, 24GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • Jun 20, 24StructureEntered a material agreement+11 more in the same filing8-K 1.01 ↗
  • Jan 30, 24StructureEntered a material agreement+4 more in the same filing8-K 1.01 ↗
  • Jul 12, 23StressRestructuring plan with committed costs+2 more in the same filing8-K 2.05 ↗
  • Jun 14, 23StressRestructuring plan with committed costs8-K/A 2.05 ↗
  • Jun 12, 23StructureA material agreement was terminated+4 more in the same filing8-K 1.02 ↗
  • Jun 9, 23GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
  • May 22, 23StressRestructuring plan with committed costs+3 more in the same filing8-K 2.05 ↗
  • May 1, 23GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗

6 older filings not shown · The record reaches back to Jun 25, 18.

Notable in the record

Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.

  • Oct 7, 22StressListing notice (8-K 3.01)8-K 3.01 ↗
  • Jan 7, 22StressRestructuring plan with committed costs+1 more in the same filing8-K 2.05 ↗

The full record holds 5 stress filings.

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 13D: stake and stated purpose

Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.

  • Timothy A. Springer31.5%Apr 3, 25SCHEDULE 13D/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • Terrance McGuire6.3%Apr 3, 25SCHEDULE 13D/A ↗8 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • VV Manager II, LLC5.6%Feb 5, 25SCHEDULE 13D/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.

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.

  • FMR LLC15.0%Mar 31, 25SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
  • Deep Track Capital, LP7.6%Feb 3, 25SCHEDULE 13G ↗3 co-filers on this document — the figure is the largest single stake, not their sum.
  • ADAR1 Partners, LP7.4%Feb 15, 24SCHEDULE 13G ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
  • Chen Yu6.2%Feb 12, 26SCHEDULE 13G ↗5 co-filers on this document — the figure is the largest single stake, not their sum.
  • Aberdeen Group plc6.1%Dec 31, 25SCHEDULE 13G ↗2 co-filers on this document — the figure is the largest single stake, not their sum.
show one more holderhide
  • EcoR1 Capital, LLC5.0%Mar 31, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum.

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.

Sale intention announced

On Sep 30, PETER MCNAMARA filed notice of intent to sell up to $12K. It is filed under a scheduled plan (10b5-1), arranged in advance.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

After the notice, they sold $12K on Sep 30, per their Form 4. Their sales over those 90 days add up to 109% of the amount announced. 1 other notice of theirs overlaps this window.

View notice (Form 144) ↗+4 more recent notices · 2 with a later sale

SEC record

Insider transactions

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

Buys and sells

  • Sep 30, 26Sell$12KPeter McNamaraChief Scientific Officer↗
  • Aug 25, 26Sell$2KPeter McNamaraChief Scientific Officer↗
  • Aug 12, 26Sell$2KPeter McNamaraChief Scientific Officer↗
  • Jun 30, 26Sell$6KPeter McNamaraChief Scientific Officer↗
  • May 4, 26Sell$32KMarcella K. RuddyChief Medical Officer↗
  • Apr 1, 26Sell$31KMarcella K. RuddyChief Medical Officer↗
  • Mar 6, 26Sell$181KPeter McNamaraChief Scientific Officer↗
  • Mar 6, 26Sell$8KPeter McNamaraChief Scientific Officer↗
  • Mar 6, 26Sell$300KMarcella K. RuddyChief Medical Officer↗
  • Mar 4, 26Sell$41KPeter McNamaraChief Scientific Officer↗
  • Mar 3, 26Sell$36KPeter McNamaraChief Scientific Officer↗
  • Feb 11, 26Buy$53KALISE REICINChief Executive Officer↗

There is 1 more transaction in this stretch.

Stock compensation, tax and giftsshow the 27 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.

  • Sep 25, 26Tax$37KALISE REICINChief Executive Officer↗
  • Sep 25, 26Tax$12KDaniel LochnerChief Financial Officer↗
  • Sep 25, 26Tax$10KMarc SchwabishChief Business Officer↗
  • Sep 25, 26Tax$11KPeter McNamaraChief Scientific Officer↗
  • Sep 25, 26Tax$12KMarcella K. RuddyChief Medical Officer↗
  • Aug 25, 26Compensation$633Peter McNamaraChief Scientific Officer↗
  • Aug 12, 26Compensation$633Peter McNamaraChief Scientific Officer↗
  • Jun 30, 26Compensation$3KPeter McNamaraChief Scientific Officer↗
  • Jun 20, 26Tax$28KALISE REICINChief Executive Officer↗
  • Mar 6, 26Compensation$6KPeter McNamaraChief Scientific Officer↗
  • Mar 6, 26Compensation$3KPeter McNamaraChief Scientific Officer↗
  • Mar 4, 26Compensationamount n/aALISE REICINChief Executive Officer↗
  • Mar 4, 26Compensationamount n/aDaniel LochnerChief Financial Officer↗
  • Mar 4, 26Compensationamount n/aMarc SchwabishChief Business Officer↗
  • Mar 4, 26Compensationamount n/aPeter McNamaraChief Scientific Officer↗
  • Mar 4, 26Compensationamount n/aMarcella K. RuddyChief Medical Officer↗
  • Feb 10, 26Compensation$11KMarc SchwabishChief Business Officer↗
  • Feb 4, 26Tax$95KALISE REICINChief Executive Officer↗
  • Feb 4, 26Tax$48KDaniel LochnerChief Financial Officer↗
  • Feb 4, 26Tax$38KMarc SchwabishChief Business Officer↗
  • Feb 4, 26Tax$41KPeter McNamaraChief Scientific Officer↗
  • Feb 4, 26Tax$48KMarcella K. RuddyChief Medical Officer↗
  • Dec 31, 25Compensation$26KALISE REICINChief Executive Officer↗
  • Dec 22, 25Compensation$21KPeter McNamaraChief Scientific Officer↗
  • Sep 25, 25Compensationamount n/aALISE REICINChief Executive Officer↗
  • Sep 25, 25Compensationamount n/aDaniel LochnerChief Financial Officer↗
  • Sep 25, 25Compensationamount n/aMarc SchwabishChief Business Officer↗

The full record holds 105 transactions and goes back to Dec 28, 22.

Its sector and its market

Tectonic Therapeutic Inc. among Health Care companies

The profile shows what is on record. Context and Radar place the company among those of its sector and region.

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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
250 clean closes in the period.
SEC records
537 documents on file, from May 7, 2018 to Oct 2, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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No. It is one close per session, from the provider and with the date shown on the profile; it does not update during the trading day.

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.

Why does a European company show no SEC records?

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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