| Item 1. | |
| (a) | Name of issuer:
CASI Pharmaceuticals, Inc. |
| (b) | Address of issuer's principal executive offices:
1701-1702, China Central Office Tower 1, No. 81 Jianguo Road, Chaoyang District, Beijing, F4 100025 |
| Item 2. | |
| (a) | Name of person filing:
This Schedule is filed by Foresite Capital Fund VI LP, a Delaware limited partnership ("FCF VI"), Foresite Capital Management VI LLC, a Delaware limited liability company ("FCM VI")and James Tananbaum. The foregoing entities and individuals are collectively referred to as the "Reporting Persons." |
| (b) | Address or principal business office or, if none, residence:
c/o Foresite Capital Management
9200 W. Sunset Boulevard, Suite 515
West Hollywood, CA 90069 |
| (c) | Citizenship:
See Row 4 of cover page for each Reporting Person. |
| (d) | Title of class of securities:
Ordinary Shares, par value $0.0001 |
| (e) | CUSIP No.:
G1933S101 |
| Item 3. | If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: |
| (a) |  Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
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| (b) | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
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| (c) | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
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| (d) | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
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| (e) | An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
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| (f) | An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
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| (g) | A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
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| (h) | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
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| (i) | A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
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| (j) | A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
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| (k) | Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
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| | |
| Item 4. | Ownership |
| (a) | Amount beneficially owned:
See Row 9 of cover page for each Reporting Person. |
| (b) | Percent of class:
See Row 11 of cover page for each Reporting Person. |
| (c) | Number of shares as to which the person has:
|
| | (i) Sole power to vote or to direct the vote:
See Row 5 of cover page for each Reporting Person.
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| | (ii) Shared power to vote or to direct the vote:
See Row 6 of cover page for each Reporting Person.
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| | (iii) Sole power to dispose or to direct the disposition of:
See Row 7 of cover page for each Reporting Person.
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| | (iv) Shared power to dispose or to direct the disposition of:
See Row 8 of cover page for each Reporting Person.
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| Item 5. | Ownership of 5 Percent or Less of a Class. |
| | 
Ownership of 5 percent or less of a class
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| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. |
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If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
Under certain circumstances set forth in the limited partnership agreement of FCF VI and the limited liability company agreement of FCM VI, the partners or members, as the case may be, of each of such entities may be deemed to have the right to receive dividends from, or the proceeds from the sale of, shares of the Issuer directly or indirectly owned by each such entity of which they are a partner or member. |
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. |
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Not Applicable
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| Item 8. | Identification and Classification of Members of the Group. |
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Not Applicable
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| Item 9. | Notice of Dissolution of Group. |
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Not Applicable
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