He Wei-Wu → CASI Pharmaceuticals, Inc. CASIF

Stake: 23.80% Shares: 3,735,535 CUSIP: G1933S101 Class: Ordinary Shares

Item 4 — Purpose of Transaction

The Reporting Persons are filing this Amendment No. 9 to Schedule 13D to report the purchase of 357,644 Ordinary Shares by Huiying Memorial Foundation.

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

6 13D/G filings on this issuer

5 other filings besides this one

Filer Track Record

7 filings by this filer

6 other filings in the data moat

Short Interest · settle 2026-03-31

DTC 29.02

442,451 shares short · -3.4% vs prior

Other 13D/G Filings on CASI Pharmaceuticals, Inc.

Filed	Form	Filer	Stake	Shares
2026-01-29	SCHEDULE	He Wei-Wu	34.80%	8,965,535	view →
2026-01-20	SCHEDULE	Ho Chi Sing	4.80%	992,638	view →
2026-01-20	SCHEDULE	SPARKLE BYTE LTD	5.00%	1,019,852	view →
2026-01-09	SCHEDULE	He Wei-Wu	19.10%	3,965,535	view →
2025-02-03	SCHEDULE	Ho Chi Sing	6.40%	992,638	view →

Other Filings by He Wei-Wu

Filed	Form	Issuer	Stake	Shares
2026-01-29	SCHEDULE	CASI Pharmaceuticals, Inc. CASIF	34.80%	8,965,535	view →
2026-01-09	SCHEDULE	CASI Pharmaceuticals, Inc. CASIF	19.10%	3,965,535	view →
2021-11-23	SC	CASI Pharmaceuticals, Inc.	—	—	view →
2021-02-03	SC	CASI Pharmaceuticals, Inc.	—	—	view →
2020-03-24	SC	CASI Pharmaceuticals, Inc.	—	—	view →
2018-04-04	SC	CASI Pharmaceuticals, Inc.	—	—	view →

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