SecBot SecBot
SC 13G ·Filed Oct 13, 2026

AVBP

ArriVent BioPharma, Inc.
NEUTRAL
Impact 3/10
Horizonweeks Processed12d 17h ago SEC0001213900-26-109019
Passive investor 5%+ stake
Actionable Insight • Neutral

Vivo is a healthcare-focused venture/growth investor — this is a passive position, not an activist precursor. Monitor for any subsequent 13D conversion or additional insider buying that could signal a shift in intent.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d ⚠ clustered
AVBP ▲ +18.02% at T+5d
NEUTRAL call +18.02% · α vs SPY +17.57% · entry $16.20 → $19.12
Next anchor: T+20d in 15d
Latest observation: T+7 +21.53% FF3 residual α
Entry = T+0 close
Oct 13, 2026
via day close
T+1d
+3.64%
call +3.64% · α +3.36%
$16.79
settled 12d ago
T+5d
+18.02%
call +18.02% · α +17.57%
$19.12
settled 6d ago
T+20d
Pending
in 15d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Vivo Opportunity Fund Holdings, L.P. and affiliated entities filed a new Schedule 13G disclosing a 5.0% aggregate beneficial ownership stake in ArriVent BioPharma as of October 6, 2026. The filing is passive (Rule 13d-1(c)) with no intent to influence control. This is a new disclosure for this filer, adding to the existing passive stakes from Fidelity and Hillhouse.

Key Financial Metrics

Stake
5%
Investor
Vivo Opportunity, LLC (on behalf of affiliated funds)

Key Facts

  • Vivo Opportunity, LLC beneficially owns 2,472,701 shares (5.0%) of ArriVent BioPharma common stock as of October 6, 2026.
  • The filing is a new Schedule 13G, not an amendment, indicating a new 5%+ passive stake.
  • Stake is held across multiple Vivo funds: Vivo Opportunity Fund Holdings (1,514,446 shares, 3.1%), Vivo Opportunity Co-Invest (176,752 shares, 0.3%), Vivo Opportunity Co-Invest Cycle 3 (781,503 shares, 1.6%), and Vivo Opportunity Cayman Fund (152,971 shares, 0.3%).
  • Filer certifies passive intent under Rule 13d-1(c) — no control or activist purpose.
  • Percentage based on 49,307,729 shares outstanding as of August 10, 2026 (per ArriVent's 10-Q).
  • Previous 13G filers include Fidelity (FMR LLC) and Hillhouse Investment Management, with filings in May and February 2026.

Financial Impact

Vivo's aggregate stake of 2,472,701 shares represents 5.0% of outstanding shares. No transaction value disclosed.

ownership concentration

Risk Factors

  • Passive 13G filers may convert to 13D if they later seek board representation or strategic changes, though no indication here.
  • Concentration of ownership among multiple large passive holders (Fidelity, Hillhouse, Vivo) could reduce trading liquidity.

Investment Themes

Biotech & Drug Discovery

Documents Analyzed

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

DocumentAccession Number
SC 13G Filing (Primary)0001213900-26-109019
Document: 0001213900-26-109019-index-headers.html0001213900-26-109019
Document: 0001213900-26-109019-index.html0001213900-26-109019
Document: 0001213900-26-109019.txt0001213900-26-109019
15 reports for AVBP
Performance horizon
80% Hit rate @ T+5 4 of 5 directional calls Went positive at some point 5 of 6 best @ T+20▲ +10.31%Jun 11, 2026
Filters
Rows
Reports for AVBP — sortable, filterable
TypeNow
Oct 26, 2026
today
8-K
BULLISH ★ 6/10
$23.64awaiting T+5—$17.00 (−28.09%)
Oct 25, 2026
1d ago
Press Release
BULLISH ★ 5/10
$21.00awaiting T+5—$17.00 (−19.05%)
Oct 23, 2026
2d ago
Press Release
BULLISH ★ 7/10
$21.00awaiting T+5—$17.00 (−19.05%)
Oct 19, 2026
7d ago
8-K
BULLISH ★ 6/10
$17.94awaiting T+5—$17.00 (−5.24%)
Oct 13, 2026
12d ago
SC 13G
NEUTRAL ★ 3/10
$16.20 $19.12▲ +18.02%▲ +17.57%$17.00 (+4.94%)
Oct 13, 2026
13d ago
8-K
NEUTRAL ★ 4/10
$16.09 $18.85▲ +17.15%▲ +18.31%$17.00 (+5.66%)
Oct 8, 2026
17d ago
SC 13D/A
BEARISH ★ 5/10
$16.73 $16.66▲ +0.42%▼ −1.55%$17.00 (−1.61%)
Oct 6, 2026
20d ago
8-K
BEARISH ★ 7/10
$15.09 $16.09▼ −6.63%▼ −6.77%$17.00 (−12.66%)
Aug 12, 2026
10w ago
Press Release
BEARISH ★ 6/10
$30.00 $29.18▲ +2.73%▲ +0.77%$17.00 (+43.33%)
Jun 11, 2026
19w ago
Institutional Cluster
BULLISH ★ 4/10
$30.54 $31.74▲ +3.93%▲ +3.26%$17.00 (−44.34%)
Showing 10 of 15

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Report published Oct 13, 2026