SEC Form 4
ArriVent BioPharma, Inc. (AVBP) insider trading
In the 12 months to Oct 26, 2026, one AVBP insider reported open-market sales of $13.0M across 1 filing; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $13.0M
- 1 filing · 1 insider
- Open-market purchases
- $0
- 0 filings
Who traded AVBP, and when
- Sale
AVBP daily close from Oct 27, 2025 to Oct 26, 2026, between $15.09 and $34.74, last $15.65. 1 sale and 0 purchase filings by 1 insider, marked at their filing dates. HILLHOUSE INVESTMENT MANAGEMENT, LTD., 10% owner: sold $13.0M across 1 filing, first filed Feb 3, 2026, last Feb 3, 2026.
Largest mark · tap a row for others
HILLHOUSE INVESTMENT MANAGEMENT, LTD. · 10% owner
Sale $12,983,320
555,555 shares at $23.37 avg
Filed Feb 3, 2026 · traded Dec 10
Close on filing date $22.64
HILLHOUSE INVESTMENT MANAGEMENT, LTD. · 10% owner
10% owner
$13.0M soldOpen-market trades
1 filing in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| HILLHOUSE INVESTMENT MANAGEMENT, LTD. | 10% owner | $13.0M | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | HILLHOUSE INVESTMENT MANAGEMENT, LTD. 10% owner | Sale | 555,555 | $23.37 | $13.0M | 3,929,117 |
GET /stocks/filings/vX/form-4?tickers=AVBP&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"AVBP"
],
"issuer_cik": "0001868279",
"owner_cik": "0001510589",
"accession_number": "0000902664-26-000675",
"form_type": "4",
"filing_date": "2026-02-03",
"period_of_report": "2025-12-10",
"issuer_name": "ArriVent BioPharma, Inc.",
"issuer_trading_symbol": "AVBP",
"owner_name": "HILLHOUSE INVESTMENT MANAGEMENT, LTD.",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2025-12-10",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 555555,
"transaction_price_per_share": 23.37,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 3929117,
"transaction_value": 12983320.35,
"not_subject_to_section_16": true,
"direct_or_indirect": "I",
"nature_of_ownership": "See footnotes",
"footnotes": [
{
"id": "F1",
"description": "The securities reported herein were held by HACF, L.P., an exempted Cayman Islands limited partnership (\"HACF\"). HHLR (as defined below) acts as the sole management company of HACF."
},
{
"id": "F2",
"description": "The securities reported herein are held by VSUM VI Holdings Limited (\"VSUM VI\"), VSUM VIII Holdings Limited (\"VSUM VIII\") and ARVT Holdings Limited (\"ARVT\"). VSUM VI is a wholly owned subsidiary of Hillhouse Venture Fund V, L.P. (\"Venture Fund V\"), VSUM VIII is a wholly owned subsidiary of Hillhouse Healthcare Fund, L.P. (\"Healthcare Fund\") and ARVT is a wholly owned subsidiary of Hillhouse Venture Fund VI, L.P. (\"Venture Fund VI\"). HIM (as defined below) acts as the sole management company of each of Venture Fund V, Healthcare Fund and Venture Fund VI."
},
{
"id": "F3",
"description": "This statement is filed by (i) Hillhouse Investment Management, Ltd., an exempted Cayman Islands company (\"HIM\") and (ii) HHLR Advisors, Ltd., an exempted Cayman Islands company (\"HHLR\"). The foregoing persons are hereinafter sometimes each referred to as a \"Reporting Person\" and collectively referred to as the \"Reporting Persons.\" HIM and HHLR are under common control and share certain policies, personnel and resources. Accordingly, HIM and HHLR are filing this Form 4 jointly."
},
{
"id": "F4",
"description": "The filing of this statement shall not be deemed an admission that each of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any."
}
]
},
{
"tickers": [
"AVBP"
],
"issuer_cik": "0001868279",
"owner_cik": "0001762304",
"accession_number": "0000902664-26-000675",
"form_type": "4",
"filing_date": "2026-02-03",
"period_of_report": "2025-12-10",
"issuer_name": "ArriVent BioPharma, Inc.",
"issuer_trading_symbol": "AVBP",
"owner_name": "HHLR ADVISORS, LTD.",
"is_director": false,
"is_officer": false,
"is_ten_percent_owner": true,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2025-12-10",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 555555,
"transaction_price_per_share": 23.37,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 3929117,
"transaction_value": 12983320.35,
"not_subject_to_section_16": true,
"direct_or_indirect": "I",
"nature_of_ownership": "See footnotes",
"footnotes": [
{
"id": "F1",
"description": "The securities reported herein were held by HACF, L.P., an exempted Cayman Islands limited partnership (\"HACF\"). HHLR (as defined below) acts as the sole management company of HACF."
},
{
"id": "F2",
"description": "The securities reported herein are held by VSUM VI Holdings Limited (\"VSUM VI\"), VSUM VIII Holdings Limited (\"VSUM VIII\") and ARVT Holdings Limited (\"ARVT\"). VSUM VI is a wholly owned subsidiary of Hillhouse Venture Fund V, L.P. (\"Venture Fund V\"), VSUM VIII is a wholly owned subsidiary of Hillhouse Healthcare Fund, L.P. (\"Healthcare Fund\") and ARVT is a wholly owned subsidiary of Hillhouse Venture Fund VI, L.P. (\"Venture Fund VI\"). HIM (as defined below) acts as the sole management company of each of Venture Fund V, Healthcare Fund and Venture Fund VI."
},
{
"id": "F3",
"description": "This statement is filed by (i) Hillhouse Investment Management, Ltd., an exempted Cayman Islands company (\"HIM\") and (ii) HHLR Advisors, Ltd., an exempted Cayman Islands company (\"HHLR\"). The foregoing persons are hereinafter sometimes each referred to as a \"Reporting Person\" and collectively referred to as the \"Reporting Persons.\" HIM and HHLR are under common control and share certain policies, personnel and resources. Accordingly, HIM and HHLR are filing this Form 4 jointly."
},
{
"id": "F4",
"description": "The filing of this statement shall not be deemed an admission that each of the Reporting Persons is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Act of 1934, as amended, or otherwise. Each of the Reporting Persons expressly disclaims beneficial ownership of the securities reported herein except to the extent of its pecuniary interest therein, if any."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has ArriVent BioPharma, Inc.'s CEO sold stock?
No. Zhengbin Yao (CEO) made no open-market sales filed as CEO in the last 12 months.
How current is AVBP’s insider data?
These are AVBP Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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Track AVBP insider trades with your agent
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for AVBP every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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