Debra Yu

CIK 1869480 · See Remarks · last filed 2026-06-15

Debra Yu is a corporate insider who has filed 7 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for MGTX, was dated Jun 15, 2026.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$0

Companies

2

Total Filings

7

Lifetime Open-Market Net

$0

Filer Profile

Reported Address

C/O MEIRAGTX HOLDINGS PLC
655 THIRD AVENUE -- SUITE 1115
NEW YORK, NY 10017

Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
MGTX	Director	—	$13.51	—	$0	5	2026-06-15
LianBio (LIAN) Delisted	See Remarks	1,000,000	$0.32	$319.0K	$0	2	2022-05-06

Recent Filings

7 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2026-06-15	MGTX	Grant (A)	—	$0	EDGAR
2025-06-16	MGTX	Grant (A)	—	$0	EDGAR
2024-06-06	MGTX	Grant (A)	—	$0	EDGAR
2023-06-12	MGTX	Grant (A)	—	$0	EDGAR
2022-05-06	LianBio (LIAN) Delisted	Exer (M)	+1,000,000	$1.71M	EDGAR
2022-04-27	MGTX	Grant (A)	—	$0	EDGAR
2021-11-01	LianBio (LIAN) Delisted	Grant (A)	—	$0	EDGAR

Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.