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8-K ·Filed Jun 5, 2026

MBX

MBX Biosciences, Inc.
NEUTRAL
Impact 3/10
Horizonweeks Processed4mo ago SEC0001193125-26-258417
8-K context-dependent: Items 5.02
Actionable Insight • Neutral

The voting results and auditor ratification are routine. The more notable indicator is the DEFA14A cross-filing showing Executive Chair Hoerter became a consultant and lost independence on May 1—a governance change typical of a transition toward non-founder management. Monitor for any subsequent Form 4 filings from Hoerter or changes in strategic direction. For now, the event is neutral for the stock.

DirectionNeutral
Confidencehigh
Horizonweeks
Final — all horizons settled through T+60d
MBX ▲ +103.43% at T+60d
NEUTRAL call +103.43% · α vs SPY +99.43% · entry $30.28 → $61.60
Entry = T+0 close
Jun 5, 2026
via day close
T+1d
-4.23%
call -4.23% · α -4.45%
$29.00
settled 5mo ago
T+5d
+17.27%
call +17.27% · α +16.70%
$35.51
settled 5mo ago
T+20d
+90.55%
call +90.55% · α +88.69%
$57.70
settled 4mo ago
T+60d
+103.43%
call +103.43% · α +99.43%
$61.60
settled 8w ago

Price Chart

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Executive Summary

MBX Biosciences held its 2026 annual meeting on June 4, 2026, where stockholders elected Class II directors Patrick J. Heron and Edward T. Mathers and ratified Ernst & Young as the independent auditor. This 8-K reports routine governance results with no material financial disclosures; the nearby DEFA14A cross-filing disclosed Executive Chair Steven L. Hoerter's consulting agreement and loss of independent status as of May 1, 2026, signaling a governance change that warrants monitoring.

Key Facts

  • Annual Meeting held June 4, 2026; two Class II director nominees (Patrick J. Heron and Edward T. Mathers) elected for three-year terms ending 2029
  • Patrick J. Heron received 35,007,623 votes 'for' vs 4,579,129 'withheld'; Edward T. Mathers received 31,983,223 'for' vs 7,603,529 'withheld'
  • Ratification of Ernst & Young as auditor for FY2026 passed with 43,713,693 'for', 1,946 'against', 1,946 'abstain'
  • Outstanding shares at record date: 47,570,485
  • Cross-filing DEFA14A (May 8, 2026) disclosed that Executive Chair Steven L. Hoerter entered a consulting agreement on May 1, 2026, resigned from the Audit Committee, and is no longer independent under Nasdaq rules; Edward T. Mathers joined the Audit Committee

Financial Impact

No financial impact from this filing.

Risk Factors

  • Loss of independent chair may raise governance concerns for some institutional investors.
  • Consulting arrangement with the Executive Chair could signal management transition or succession planning.

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Analyst Consensus
88% bullish (16 analysts)

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
8-K Filing (Primary)0001193125-26-258417
Document: 0001193125-26-258417-index-headers.html0001193125-26-258417
Document: 0001193125-26-258417-index.html0001193125-26-258417
Document: 0001193125-26-258417.txt0001193125-26-258417
27 reports for MBX
Performance horizon
70% Hit rate @ T+1 7 of 10 directional calls Went positive at some point 8 of 10 best @ T+60▲ +85.57%May 7, 2026
Filters
Rows
Reports for MBX — sortable, filterable
TypeNow
Oct 22, 2026
4d ago
3
NEUTRAL ★ 2/10
$50.46 $48.50▼ −3.88%▼ −3.36%$50.29 (−0.34%)
Oct 22, 2026
4d ago
8-K
NEUTRAL ★ 2/10
$50.46 $48.50▼ −3.88%▼ −3.36%$50.29 (−0.34%)
Aug 27, 2026
8w ago
Press Release
BULLISH ★ 8/10
$66.39 $63.00▼ −5.11%▼ −4.88%$50.29 (−24.25%)
Aug 17, 2026
10w ago
144
NEUTRAL ★ 3/10
$68.25 $66.52▼ −2.53%▼ −1.86%$50.29 (−26.32%)
Aug 6, 2026
11w ago
8-K
BULLISH ★ 7/10
$67.11 $67.82▲ +1.06%▲ +0.45%$50.29 (−25.06%)
Jun 12, 2026
19w ago
8-K
BULLISH ★ 7/10
$35.51 $38.98▲ +9.77%▲ +8.01%$50.29 (+41.62%)
Jun 12, 2026
19w ago
Press Release
BULLISH ★ 6/10
$35.51 $38.98▲ +9.77%▲ +8.01%$50.29 (+41.62%)
Jun 11, 2026
19w ago
Institutional Cluster
BULLISH ★ 5/10
$37.25 $35.51▼ −4.67%▼ −5.21%$50.29 (+35.01%)
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$37.25 $35.51▼ −4.67%▼ −5.21%$50.29 (+35.01%)
Jun 10, 2026
19w ago
144
NEUTRAL ★ 2/10
$30.99 $37.25▲ +20.20%▲ +18.50%$50.29 (+62.28%)
Showing 10 of 27

US Market Status

Market Closed — Opens Tue (16h 37m)

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Report published Jun 5, 2026