☐ |
Rule 13d-1(b)
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ý |
Rule 13d-1(c)
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☐ |
Rule 13d-1(d)
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CUSIP No. 451731103
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13G
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Page 2 of 8 Pages
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1
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NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) TANG CAPITAL PARTNERS, LP
|
|||||
2
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
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(a) ☐
(b) ý |
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3
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SEC USE ONLY
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|||||
4
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CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
|
|||||
NUMBER OF
|
5
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SOLE VOTING POWER
0
|
||||
SHARES
BENEFICIALLY
OWNED BY |
6
|
SHARED VOTING POWER
1,390,802
|
||||
EACH REPORTING
PERSON WITH |
7
|
SOLE DISPOSITIVE POWER
0
|
||||
8
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SHARED DISPOSITIVE POWER
1,390,802
|
|||||
9
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,390,802
|
|||||
10
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CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
☐
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|||||
11
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
2.1%
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12
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TYPE OF REPORTING PERSON
PN
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CUSIP No. 451731103
|
13G
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Page 3 of 8 Pages
|
||||
1
|
NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) TANG CAPITAL MANAGEMENT, LLC
|
|||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
|
(a) ☐
(b) ý |
||||
3
|
SEC USE ONLY
|
|||||
4
|
CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
|
|||||
NUMBER OF
|
5
|
SOLE VOTING POWER
0
|
||||
SHARES
BENEFICIALLY
OWNED BY |
6
|
SHARED VOTING POWER
1,390,802
|
||||
EACH REPORTING
PERSON WITH |
7
|
SOLE DISPOSITIVE POWER
0
|
||||
8
|
SHARED DISPOSITIVE POWER
1,390,802
|
|||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,390,802
|
|||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
☐
|
|||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
2.1%
|
|||||
12
|
TYPE OF REPORTING PERSON
OO
|
CUSIP No. 451731103
|
13G
|
Page 4 of 8 Pages
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1
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NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) KEVIN C. TANG
|
|||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
|
(a) ☐
(b) ý |
||||
3
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SEC USE ONLY
|
|||||
4
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CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
|
|||||
NUMBER OF
|
5
|
SOLE VOTING POWER
0
|
||||
SHARES
BENEFICIALLY
OWNED BY |
6
|
SHARED VOTING POWER
1,390,802
|
||||
EACH REPORTING
PERSON WITH |
7
|
SOLE DISPOSITIVE POWER
0
|
||||
8
|
SHARED DISPOSITIVE POWER
1,390,802
|
|||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,390,802
|
|||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
☐
|
|||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
2.1%
|
|||||
12
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TYPE OF REPORTING PERSON
IN
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Item 1(a). |
Name of Issuer:
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Item 1(b). |
Address of Issuer’s Principal Executive Offices:
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Item 2(a). |
Name of Person Filing:
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Item 2(b). |
Address of Principal Business Office or, if none, Residence:
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Item 2(c). |
Citizenship:
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Item 2(d). |
Title of Class of Securities:
|
Item 2(e). |
CUSIP Number: 451731103
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Item 3. |
Not applicable.
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Item 4. |
Ownership.
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(a) |
Amount Beneficially Owned:
|
(b) |
Percent of Class:
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Tang Capital Partners
|
2.1%
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Tang Capital Management
|
2.1%
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Kevin C. Tang
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2.1%
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(c) |
Number of shares as to which such person has:
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(i) |
sole power to vote or to direct the vote:
|
Tang Capital Partners
|
0 shares
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Tang Capital Management
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0 shares
|
Kevin C. Tang
|
0 shares
|
(ii) |
shared power to vote or to direct the vote:
|
Tang Capital Partners
|
1,390,802 shares
|
Tang Capital Management
|
1,390,802 shares
|
Kevin C. Tang
|
1,390,802 shares
|
(iii) |
sole power to dispose or to direct the disposition of:
|
Tang Capital Partners
|
0 shares
|
Tang Capital Management
|
0 shares
|
Kevin C. Tang
|
0 shares
|
(iv) |
shared power to dispose or to direct the disposition of:
|
Tang Capital Partners
|
1,390,802 shares
|
Tang Capital Management
|
1,390,802 shares
|
Kevin C. Tang
|
1,390,802 shares
|
Item 5. |
Ownership of Five Percent or Less of a Class.
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Item 6. |
Ownership of More than Five Percent on Behalf of Another Person.
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Item 7. |
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.
|
Item 8. |
Identification and Classification of Members of the Group.
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Item 9. |
Notice of Dissolution of Group.
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Item 10. |
Certification.
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Date:
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February 14, 2018
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TANG CAPITAL PARTNERS, LP
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By:
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Tang Capital Management, LLC, its General Partner
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By:
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/s/ Kevin C. Tang
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Kevin C. Tang, Manager
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TANG CAPITAL MANAGEMENT, LLC
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By:
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/s/ Kevin C. Tang
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Kevin C. Tang, Manager
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/s/ Kevin C. Tang
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Kevin C. Tang
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