Dongfang Liu

CIK 1937915 · CHIEF MEDICAL OFFICER · last filed 2026-04-21

Dongfang Liu is a CHIEF MEDICAL OFFICER who has filed 20 SEC Form 4 insider transactions across 2 companies since 2022. The most recent filing, for NUVB, was dated Apr 21, 2026. Across all open-market trades the lifetime net is −$1.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $120.2K across reported positions.

"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

$120.2K

Companies

2

Total Filings

20

Lifetime Open-Market Net

-$1.92M

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
NUVB	CHIEF MEDICAL OFFICER	18,000	$6.68	$120.2K	-$251.0K	2	2026-04-21
Nuvation Bio Inc. (NUVB.WS) Delisted	CHIEF MEDICAL OFFICER	168,000	$0.01	$857	-$1.67M	10	2025-12-03

Recent Filings

20 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
2026-04-21	NUVB	Mixed	—	-$154.0K	EDGAR
2026-04-17	NUVB	Notice (144)	−50,000	-$240.5K	EDGAR
2026-03-03	NUVB	Grant (A)	—	$0	EDGAR
2025-12-03	Nuvation Bio Inc. (NUVB.WS) Delisted	Mixed	—	-$733.8K	EDGAR
2025-12-01	NUVB	Notice (144)	−150,000	-$1.17M	EDGAR
2025-11-26	NUVB	Notice (144)	−10,000	-$80.0K	EDGAR
2025-11-26	Nuvation Bio Inc. (NUVB.WS) Delisted	Mixed	—	-$82.8K	EDGAR
2025-11-25	NUVB	Notice (144)	−10,000	-$75.0K	EDGAR
2025-11-24	Nuvation Bio Inc. (NUVB.WS) Delisted	Mixed	—	-$102.7K	EDGAR
2025-11-20	NUVB	Notice (144)	−20,000	-$140.1K	EDGAR

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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.