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TECTONIC THERAPEUTIC INC (TECX)

Name: TECTONIC THERAPEUTIC INC (TECX) — Institutional ownership, SEC filings and insider activity
Creator: Sightfile
License: https://www.sec.gov/privacy#dissemination

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0001681087 · EDGAR filings · Updated 2026-07-01

TECTONIC THERAPEUTIC INC (TECX) has reported institutional ownership of 73.2%, with 111 institutional managers holding positions valued at $426.8M per the latest 13F reporting period. SEC filings include an active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), substantial-doubt (going concern) disclosure per the filings.

Institutional ownership

73.2%

Institutional managers

111

Reported 13F value

$426.8M

Insider activity

40 trans.

$1.97M net buying

Data flags

2 active

from SEC filings

Latest updates

2026-07-01 — Insider transaction reported (Form 4)
2026-06-30 — Notice of proposed sale filed (Form 144)
2026-06-23 — Insider transaction reported (Form 4)
2026-06-12 — Insider transaction reported (Form 4)
2026-06-10 — Current report (8-K) filed
2026-06-10 — Insider transaction reported (Form 4)

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, TECTONIC THERAPEUTIC INC has 111 institutional holders and institutional ownership of 73.2%.

Insider activity

Insiders reported 40 transactions (13 buys, 6 sells) across 7 reporting insiders, with a net reported value of $1.97M.

Data flags from SEC filings

Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2026-05-07 (recurring since 2023-03-23) — source filing. The authoritative details are those stated in the filing itself.

Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2022-10-07 (recurring since 2022-10-07) — source filing. The authoritative details are those stated in the filing itself.

Related companies

DBV TECHNOLOGIES S A (DBVT) · VERASTEM INC (VSTM) · RIGEL PHARMACEUTICALS INC (RIGL) · ACLARIS THERAPEUTICS (ACRS) · UPSTREAM BIO INC (UPB) · DESIGN THERAPEUTICS INC (DSGN)

See full history, cross-references and alerts on Sightfile

Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-01.