This is a routine post-exercise diversification sale by a former director with no current management role. The small size (~0.05% of market cap) and non-executive status of the filer make this a non-event for traders. Monitor for any subsequent Form 4 filings from current executives or larger insider sales, but this filing alone does not warrant action.
Price Chart
Executive Summary
Former director Terrance McGuire filed a Form 144 notice to sell 10,200 shares of Tectonic Therapeutic (TECX) valued at approximately $383,671, acquired via stock option exercise. The sale is small relative to the $705M market cap and represents a routine post-exercise diversification move by a former board member, not a management signal. The filing is a single notice (not a batch of distinct filings) and carries limited directional significance.
Key Facts
- Former director Terrance McGuire filed Form 144 to sell 10,200 shares of TECX common stock.
- Estimated sale value: ~$383,671 based on filing date price.
- Shares were acquired via stock option exercise on the same day (08/21/2026).
- Broker: Morgan Stanley Smith Barney LLC Executive Financial Services.
- McGuire is a former director, not a current executive officer.
- Sale represents ~0.05% of TECX's $705M market cap.
- Only one distinct Form 144 was filed (accession number -26-008563); the 'batch' label reflects duplicate documents, not multiple filings.
Financial Impact
Proposed sale of 10,200 shares valued at ~$383,671; immaterial relative to $705M market cap.
Risk Factors
- Insider may not complete the sale (Form 144 is an intent notice).
- If followed by larger insider sales from current executives, could signal broader insider sentiment shift.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 6 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (TECX) — Batch item 1 | 0001950047-26-008563 |
| Document: 0001950047-26-008563-index.html | 0001950047-26-008563 |
| Document: 0001950047-26-008563.txt | 0001950047-26-008563 |
| 144 Filing (TECX) — Batch item 4 | 0001950047-26-008563 |
| Document: 0001950047-26-008563-index.html | 0001950047-26-008563 |
| Document: 0001950047-26-008563.txt | 0001950047-26-008563 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 21, 2026 9w ago | 144 | $36.47 | awaiting T+60 | — | $19.95 (−45.30%) |
Jun 11, 2026 19w ago | Institutional Cluster | $29.34 $30.75 | ▲ +4.81% | ▲ +0.41% | $19.95 (−32.00%) |
May 7, 2026 24w ago | 8-K | $29.00 $29.17 | ▼ −0.59% | ▲ +4.25% | $19.95 (+31.21%) |
May 7, 2026 24w ago | Press Release | $29.00 $29.17 | ▲ +0.59% | ▼ −4.25% | $19.95 (−31.21%) |
Apr 24, 2026 26w ago | DEFA14A | $28.75 $31.59 | ▲ +9.88% | ▲ +5.10% | $19.95 (−30.61%) |
Apr 3, 2026 29w ago | 3 | $29.98 $32.74 | ▲ +9.21% | ▼ −4.26% | $19.95 (−33.46%) |
Mar 6, 2026 33w ago | Insider Cluster | $35.87 $28.89 | ▼ −19.46% | ▼ −32.24% | $19.95 (−44.38%) |
Feb 24, 2026 34w ago | 8-K | $23.11 $28.84 | ▲ +24.79% | ▲ +17.84% | $19.95 (−13.67%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers