SEC ownership of LianBio

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001831283.

Comparable stake leader

PERCEPTIVE ADVISORS LLC

Disclosed value leader

Neil Kumar

Comparable rows

0/14

Latest evidence

31 Mar 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
31 Mar 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001831283
Issuer location
Princeton, NJ

Ownership snapshot

Top shareholders of LianBio (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
PERCEPTIVE ADVISORS LLC
Disclosed value leader
Neil Kumar
Comparable rows
0/14
Latest evidence
31 Mar 2026
3/4/5 13F Highest disclosed value: $8,270,616 14 rows are not safely comparable across share classes. Showing 1-8 of 14 holder rows.

Quick read

Neil Kumar has the largest disclosed position value at $8.27M.

0 of 14 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Neil Kumar's linked filing trail.
Disclosed position value Top 5
PERCEPTIVE ADVISORS LLC $81.3K
Neil Kumar $8.27M
Anastasios Gianakakos $1.73M
Debra Yu $1.65M
Yizhe Wang $1.5M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-8 of 14 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
PERCEPTIVE ADVISORS LLC
3/4/5
Director, 10%+ Owner
mixed-class rows
$81,310
3,745,573 shares
mixed-class rows
15 Feb 2024
Neil Kumar
3/4/5
Director
class O/S missing
$8,270,616
5,002,792 shares
29 Oct 2021
Anastasios Gianakakos
3/4/5
Director
class O/S missing
$1,729,084
363,253 shares
15 Feb 2024
Debra Yu
3/4/5
President & Chief Strategy Officer
mixed-class rows
$1,653,200
1,999,947 shares
mixed-class rows
04 May 2022
Yizhe Wang
3/4/5
Chief Executive Officer, Director
class O/S missing
$1,500,276
907,498 shares
29 Mar 2023
Yi Larson
3/4/5
Chief Financial Officer
class O/S missing
$538,780
325,901 shares
29 Mar 2023
Jiang Qian
3/4/5
SVP, China General Manager
class O/S missing
$481,666
291,354 shares
29 Mar 2023
Brianne Jahn
3/4/5
Chief Business Officer
class O/S missing
$370,325
224,005 shares
29 Mar 2023
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 16 Jun 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-14 of 14 reporting-owner rows connected to LianBio. Open a relationship link for the CIK-to-CIK filing trail.

Rows
14
Largest Forms 3/4/5 holder
Neil Kumar
Net 12M change
$0
Latest report
15 Feb 2024
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Neil Kumar Director $8,270,616 Mixed 29 Oct 2021
Anastasios Gianakakos Director $1,729,084 Mixed 15 Feb 2024
Debra Yu President & Chief Strategy Officer $1,653,200 Mixed 04 May 2022
Yizhe Wang Chief Executive Officer, Director $1,500,276 Mixed 29 Mar 2023
Yi Larson Chief Financial Officer $538,780 Mixed 29 Mar 2023
Jiang Qian SVP, China General Manager $481,666 Mixed 29 Mar 2023
Brianne Jahn Chief Business Officer $370,325 Mixed 29 Mar 2023
PERCEPTIVE ADVISORS LLC Director, 10%+ Owner $81,310 Mixed 15 Feb 2024
Konstantin Poukalov Director $81,310 Mixed 15 Feb 2024
Susan Michele Silbermann Director $81,310 Mixed 15 Feb 2024
Adam Leo Stone Interim CEO, Director $81,310 Mixed 15 Feb 2024
Ehong Gu Interim CFO $0 Mixed 02 Jan 2024
Wei Wei Chen Director Mixed 21 Jun 2023
Jesse Wu Director Mixed 31 Oct 2021

Recent insider transactions for LianBio

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
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