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ArriVent BioPharma, Inc. (AVBP) is the issuer in a Schedule 13G reporting that Vivo Opportunity, LLC may be deemed to beneficially own an aggregate of 2,472,701 common shares, or 5.0% of the class. The aggregate consists of 1,514,446 shares held of record by Vivo Opportunity Fund Holdings, L.P., 176,752 by Vivo Opportunity Co-Invest, L.P., and 781,503 by Vivo Opportunity Co-Invest (Cycle 3), L.P.; Vivo Opportunity, LLC is their general partner. The three partnerships report 3.1%, 0.3%, and 1.6%, respectively.
Separately, Vivo Opportunity Cayman, LLC may be deemed to beneficially own 152,971 shares held of record by Vivo Opportunity Cayman Fund, L.P.; each reports 0.3%, and the Cayman LLC is the fund's general partner. The reported percentages are based on 49,307,729 ArriVent common shares outstanding as of August 10, 2026.
Key Figures
Vivo Opportunity, LLC beneficial ownership:2,472,701 sharesVivo Opportunity, LLC percentage of class:5.0%Vivo Opportunity Fund Holdings, L.P. shares held of record:1,514,446 shares+4 more
7 metrics
Vivo Opportunity, LLC beneficial ownership2,472,701 sharesMay be deemed beneficially owned in the aggregate
Vivo Opportunity, LLC percentage of class5.0%Common stock
Vivo Opportunity Fund Holdings, L.P. shares held of record1,514,446 sharesIncluded in Vivo Opportunity, LLC's reported aggregate
Vivo Opportunity Co-Invest, L.P. shares held of record176,752 sharesIncluded in Vivo Opportunity, LLC's reported aggregate
Vivo Opportunity Co-Invest (Cycle 3), L.P. shares held of record781,503 sharesIncluded in Vivo Opportunity, LLC's reported aggregate
Vivo Opportunity Cayman Fund, L.P. shares held of record152,971 sharesVivo Opportunity Cayman, LLC may be deemed to beneficially own these shares
ArriVent common shares outstanding49,307,729 sharesAs of August 10, 2026; basis for the reported ownership percentages
Key Terms
beneficially own, sole voting power, sole dispositive power, held of record, +1 more
5 terms
beneficially ownregulatory
"may be deemed to beneficially own an aggregate"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
sole voting powerregulatory
"Sole voting power: 1,514,446 shares of Common Stock"
Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.
sole dispositive powerregulatory
"Sole power to dispose or to direct the disposition of"
Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.
held of recordregulatory
"shares of Common Stock held of record by"
percent of classregulatory
"Percent of class: Vivo Opportunity Fund Holdings, L.P.: 3.1%"
Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How many ArriVent (AVBP) shares does Vivo Opportunity, LLC report?
Vivo Opportunity, LLC may be deemed to beneficially own 2,472,701 ArriVent common shares, reported as 5.0% of the class. The amount consists of 1,514,446 shares held of record by Vivo Opportunity Fund Holdings, L.P., 176,752 by Vivo Opportunity Co-Invest, L.P., and 781,503 by Vivo Opportunity Co-Invest (Cycle 3), L.P.
What share count underlies the ArriVent (AVBP) ownership percentages?
The reported percentages are based on 49,307,729 ArriVent common shares outstanding as of August 10, 2026. The listed percentages are 3.1% for Vivo Opportunity Fund Holdings, L.P., 0.3% for Vivo Opportunity Co-Invest, L.P., 1.6% for Vivo Opportunity Co-Invest (Cycle 3), L.P., and 5.0% for Vivo Opportunity, LLC.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
ArriVent BioPharma, Inc.
(Name of Issuer)
Common Stock, $0.0001 Par Value per Share
(Title of Class of Securities)
04272N102
(CUSIP Number)
10/06/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
04272N102
1
Names of Reporting Persons
Vivo Opportunity Fund Holdings, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
1,514,446.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
1,514,446.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,514,446.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
3.1 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
04272N102
1
Names of Reporting Persons
Vivo Opportunity Co-Invest, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
176,752.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
176,752.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
176,752.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.3 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
04272N102
1
Names of Reporting Persons
Vivo Opportunity Co-Invest (Cycle 3), L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
781,503.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
781,503.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
781,503.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.6 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
04272N102
1
Names of Reporting Persons
Vivo Opportunity, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
2,472,701.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
2,472,701.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,472,701.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.0 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
04272N102
1
Names of Reporting Persons
Vivo Opportunity Cayman Fund, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
152,971.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
152,971.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
152,971.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.3 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
04272N102
1
Names of Reporting Persons
Vivo Opportunity Cayman, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
152,971.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
152,971.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
152,971.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0.3 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
ArriVent BioPharma, Inc.
(b)
Address of issuer's principal executive offices:
18 Campus Boulevard Suite 100, Newtown Square, PA, 19073
Item 2.
(a)
Name of person filing:
Vivo Opportunity Fund Holdings, L.P., Vivo Opportunity Co-Invest, L.P. and Vivo Opportunity Co-Invest (Cycle 3), L.P. and their General Partner Vivo Opportunity, LLC.
Vivo Opportunity Cayman Fund, L.P. and its General Partner Vivo Opportunity Cayman, LLC.
(b)
Address or principal business office or, if none, residence:
192 Lytton Avenue, Palo Alto, CA 94301
(c)
Citizenship:
Vivo Opportunity Fund Holdings, L.P., Vivo Opportunity Co-Invest, L.P. and Vivo Opportunity Co-Invest (Cycle 3), L.P. are Delaware limited partnerships.
Vivo Opportunity, LLC is a Delaware limited liability company.
Vivo Opportunity Cayman Fund, L.P. is a Cayman Islands limited partnership.
Vivo Opportunity Cayman, LLC is a Cayman Islands limited liability company.
(d)
Title of class of securities:
Common Stock, $0.0001 Par Value per Share
(e)
CUSIP Number(s):
04272N102
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
Vivo Opportunity, LLC may be deemed to beneficially own an aggregate of 2,472,701 shares of the Issuer's Common Stock, consisting of (i) 1,514,446 shares of Common Stock of the Issuer held of record by Vivo Opportunity Fund Holdings, L.P., (ii) 176,752 shares of Common Stock of the Issuer held of record by Vivo Opportunity Co-Invest, L.P., and (iii) 781,503 shares of Common Stock of the Issuer held of record by Vivo Opportunity Co-Invest (Cycle 3), L.P. Vivo Opportunity, LLC is the general partner of Vivo Opportunity Fund Holdings, L.P., Vivo Opportunity Co-Invest, L.P. and Vivo Opportunity Co-Invest (Cycle 3), L.P.
Vivo Opportunity Cayman, LLC may be deemed to beneficially own 152,971 shares of Common Stock of the Issuer held of record by Vivo Opportunity Cayman Fund, L.P. Vivo Opportunity Cayman, LLC is the general partner of Vivo Opportunity Cayman Fund, L.P.
(b)
Percent of class:
Vivo Opportunity Fund Holdings, L.P.: 3.1%
Vivo Opportunity Co-Invest, L.P.: 0.3%
Vivo Opportunity Co-Invest (Cycle 3), L.P.: 1.6%
Vivo Opportunity, LLC: 5.0%
Vivo Opportunity Cayman Fund, L.P.: 0.3%
Vivo Opportunity Cayman, LLC: 0.3%
The percentages reported in this Item 4(b) are based on 49,307,729 shares of Common Stock of the Issuer outstanding, as of August 10, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission ("SEC") on August 12, 2026.
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Vivo Opportunity Fund Holdings, L.P.: 1,514,446 shares of Common Stock
Vivo Opportunity Co-Invest, L.P.: 176,752 shares of Common Stock
Vivo Opportunity Co-Invest (Cycle 3), L.P.: 781,503 shares of Common Stock
Vivo Opportunity, LLC: 2,472,701 shares of Common Stock
Vivo Opportunity Cayman Fund, L.P.: 152,971 shares of Common Stock
Vivo Opportunity Cayman, LLC: 152,971 shares of Common Stock
(ii) Shared power to vote or to direct the vote:
0
(iii) Sole power to dispose or to direct the disposition of:
Vivo Opportunity Fund Holdings, L.P.: 1,514,446 shares of Common Stock
Vivo Opportunity Co-Invest, L.P.: 176,752 shares of Common Stock
Vivo Opportunity Co-Invest (Cycle 3), L.P.: 781,503 shares of Common Stock
Vivo Opportunity, LLC: 2,472,701 shares of Common Stock
Vivo Opportunity Cayman Fund, L.P.: 152,971 shares of Common Stock
Vivo Opportunity Cayman, LLC: 152,971 shares of Common Stock
(iv) Shared power to dispose or to direct the disposition of:
0
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
Vivo Opportunity Fund Holdings, L.P.
Signature:
/s/ Kevin Dai
Name/Title:
Kevin Dai/Managing Member of Vivo Opportunity, LLC, General Partner
Date:
10/13/2026
Vivo Opportunity Co-Invest, L.P.
Signature:
/s/ Kevin Dai
Name/Title:
Kevin Dai/Managing Member of Vivo Opportunity, LLC, General Partner
Date:
10/13/2026
Vivo Opportunity Co-Invest (Cycle 3), L.P.
Signature:
/s/ Kevin Dai
Name/Title:
Kevin Dai/Managing Member of Vivo Opportunity, LLC, General Partner
Date:
10/13/2026
Vivo Opportunity, LLC
Signature:
/s/ Kevin Dai
Name/Title:
Kevin Dai/Managing Member
Date:
10/13/2026
Vivo Opportunity Cayman Fund, L.P.
Signature:
/s/ Kevin Dai
Name/Title:
Kevin Dai/Managing Member of Vivo Opportunity Cayman, LLC, General Partner
