SCHEDULE Filed 2025-06-20 Event 2025-06-16 SEC 0001104659-25-061185 →

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

7 13D/G filings on this issuer

6 other filings besides this one

Filer Track Record

8 filings by this filer

7 other filings in the data moat

Short Interest · settle 2026-07-15

DTC 18.20

144,504 shares short · 0.0% vs prior

Post-Filing Returns · since 2025-06-16 on CASIF

+1 day

+10.5%

+5 days

-7.5%

+30 days

-0.8%

+60 days

+78.9%

+90 days

+57.1%

+180 days

-34.6%

Anchor price 1.33 on closest trading day on/after 2025-06-16. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

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

Filed	Form	Filer	Stake	Shares
2026-05-18	SCHEDULE 13D/A	He Wei-Wu	—	23,985,535	view →
2026-01-29	SCHEDULE	He Wei-Wu	34.80%	8,965,535	view →
2026-01-20	SCHEDULE	SPARKLE BYTE LTD	5.00%	1,019,852	view →
2026-01-20	SCHEDULE	Ho Chi Sing	4.80%	992,638	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
2026-05-18	SCHEDULE 13D/A	CASI Pharmaceuticals, Inc. CASIF	—	23,985,535	view →
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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