$AVBP

$15.40 +$0.04 (0.26%) Close

$AVBP Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 49.3M shares outstanding

Who owns AVBP?

By type of holder

Institutions 93.5% Insiders 6.5% Everyone else 0.0%

Concentration Top 10 holders own 58.6%

Montanova Capital, LLC 9.2% · Infinitum Asset Management, LLC 9.0%

Institutional ownership

93.5%

+8.1 pts vs last qtr

Institutional holders

155

+16 vs last qtr

Net shares bought

+4.0M

by institutions in Q2 2026

New / sold out

35 / 19

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Vivo Capital, LLC +796.2K
BlackRock, Inc. +720.1K

Biggest sellers in Q2 2026

Fund 1 Investments, LLC SOLD OUT −500.0K
Novo Holdings A/s −442.1K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for ArriVent BioPharma, Inc. in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2024–FY2025

+22.2%

+22.22% a year

Each share's claim on the business

−18.2%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $15.7M

over 2 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years83% Under 1 year17%

Quarterly turnover

10.1%

of institutional shares changed hands

Top 10 managers, median time held

2.3 years

Super Investors

Investment managers reporting AVBP on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MC Montanova Capital, LLC	4.5M	9.16%	+114.4K (+2.6%)	2024	2.9%
Shares held by quarter Peak holding4.5M (Q2'26) Change over 8 quarters+2.7M Share of the company9.160% Montanova Capital, LLC's full portfolio →
IA Infinitum Asset Management, LLC	4.4M	9.00%	+289.5K (+7.0%)	2024	15.7%
Shares held by quarter Peak holding4.4M (Q2'26) Change over 8 quarters+4.4M Share of the company9.000% Infinitum Asset Management, LLC's full portfolio →

Montanova Capital, LLC

4.5M

% of company

9.16%

Change vs last qtr

+114.4K (+2.6%)

Held since

2024

Infinitum Asset Management, LLC

4.4M

% of company

9.00%

Change vs last qtr

+289.5K (+7.0%)

Held since

2024

28 more super investors behind a free account

See every manager holding ArriVent BioPharma, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AVBP on Form N-PORT; together they hold 18.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$46.5M	1.3M	2.72%	0.00%	June 30, 2026
SB Select Biotechnology Portfolio Fidelity Select Portfolios	$39.7M	1.3M	2.68%	0.63%	August 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$46.5M

% of company

2.72%

% of the fund

0.00%

As of

June 30, 2026

Select Biotechnology Portfolio

Fidelity Select Portfolios

Position value

$39.7M

% of company

2.68%

% of the fund

0.63%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding ArriVent BioPharma, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
OA OrbiMed Advisors IV Limited 5%+ holder 13D · 2.9%	1.4M	2.92%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company2.920% Disclosed stake13D · 2.9% View the 13D/G filing →
OA OrbiMed Asia GP IV, L.P. 5%+ holder 13D · 2.9%	1.4M	2.92%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company2.920% Disclosed stake13D · 2.9% View the 13D/G filing →

OrbiMed Advisors IV Limited

5%+ holder13D · 2.9%

1.4M

% of company

2.92%

Change vs last qtr

—

Held since

—

OrbiMed Asia GP IV, L.P.

5%+ holder13D · 2.9%

1.4M

% of company

2.92%

Change vs last qtr

—

Held since

—

2 more holders behind a free account

See every insider and 5%+ holder of ArriVent BioPharma, Inc..

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