CUSIP No. 640671301
|
1
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NAMES OF REPORTING PERSONS.
|
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I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
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|||
Lambda Investors LLC
|
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|||
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||||
2
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CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
|
(a)
|
☐
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(b)
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☐
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||||
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||||
3
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SEC USE ONLY
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||
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|||
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||||
4
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SOURCE OF FUNDS (SEE INSTRUCTIONS)
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OO
|
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|||
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||||
5
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CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
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☐
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||
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||||
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||||
6
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CITIZENSHIP OR PLACE OF ORGANIZATION
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||
Delaware
|
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|||
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||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
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7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
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|||
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||||
8
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SHARED VOTING POWER (see Item 5 below)
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||
30,400,424
|
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|||
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||||
9
|
SOLE DISPOSITIVE POWER
|
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||
0
|
|
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|||
|
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||||
10
|
SHARED DISPOSITIVE POWER (see Item 5 below)
|
|
|
||
30,400,424
|
|
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|||
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||||
11
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
*includes warrants exercisable to acquire 600,000 shares of common stock
|
|
|
||
30,400,424*
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|||
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||||
12
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CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
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☐
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||
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||||
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||||
13
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
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55.35%
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|||
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||||
14
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TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
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||
OO
|
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|||
|
|
CUSIP No. 640671301
|
1
|
NAMES OF REPORTING PERSONS.
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Wexford Capital LP
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
*includes warrants exercisable to acquire 600,000 shares of common stock and 231,226 vested stock options
|
|
|
||
31,234,031*
|
|
|
|||
|
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
56.63%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
PN
|
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|||
|
|
CUSIP No. 640671301
|
1
|
NAMES OF REPORTING PERSONS.
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Wexford GP LLC
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
Delaware
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
*includes warrants exercisable to acquire 600,000 shares of common stock and 231,226 vested stock options
|
|
|
||
31,234,031*
|
|
|
|||
|
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
56.63%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
CUSIP No. 640671301
|
1
|
NAMES OF REPORTING PERSONS.
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Charles E. Davidson
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see Item 5 below)
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
*includes warrants exercisable to acquire 600,000 shares of common stock and 231,226 vested stock options
|
|
|
||
31,234,031*
|
|
|
|||
|
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
56.63%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
CUSIP No. 640671301
|
1
|
NAMES OF REPORTING PERSONS.
|
|
|
||
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
|
|
|
|||
Joseph M. Jacobs
|
|
|
|||
|
|
||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (see Item 5 below)
|
(a)
|
☐
|
||
(b)
|
☐
|
||||
|
|
||||
3
|
SEC USE ONLY
|
|
|
||
|
|
|
|||
|
|
||||
4
|
SOURCE OF FUNDS (SEE INSTRUCTIONS)
|
|
|
||
OO
|
|
|
|||
|
|
||||
5
|
CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(D) OR 2(E)
|
|
☐
|
||
|
|
||||
|
|
||||
6
|
CITIZENSHIP OR PLACE OF ORGANIZATION
|
|
|
||
United States
|
|
|
|||
|
|
||||
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
|
7
|
SOLE VOTING POWER
|
|
|
|
0
|
|
|
|||
|
|
||||
8
|
SHARED VOTING POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
9
|
SOLE DISPOSITIVE POWER
|
|
|
||
0
|
|
|
|||
|
|
||||
10
|
SHARED DISPOSITIVE POWER (see Item 5 below)
|
|
|
||
31,234,031
|
|
|
|||
|
|
||||
11
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
*includes warrants exercisable to acquire 600,000 shares of common stock and 231,226 vested stock options
|
|
|
||
31,234,031*
|
|
|
|||
|
|
||||
12
|
CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
|
|
☐
|
||
|
|
||||
|
|
||||
13
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
|
|
|
||
56.63%
|
|
|
|||
|
|
||||
14
|
TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
|
|
|
||
IN
|
|
|
|||
|
|
Item 3. |
Source and Amount of Funds or Other Consideration.
|
(i) |
58,240 shares of Restricted Stock of the Company, with a grant date of September 9, 2015;
|
(ii) |
73,864 shares of Restricted Stock of the Company, with a grant date of August 24, 2016;
|
(iii) |
An option to purchase 33,880 shares of Common Stock of the Company, with a grant date of August 24, 2016;
|
(iv) |
73,864 shares of Restricted Stock of the Company, with a grant date of December 20, 2017, with respect to Mr. Arthur H. Amron only;
|
(v) |
73,863 shares of Restricted Stock of the Company, with a grant date of December 20, 2017, with respect to Dr. Paul Mieyal only; and
|
(vi) |
An option to purchase 40,284 shares of Common Stock of the Company, with a grant date of December 20, 2017.
|
Item 4.
|
Purpose of Transaction.
|
Item 5. |
Interest in Securities of the Issuer
|
Lambda Investors LLC
|
|||
(a) Amount beneficially owned:
|
30,400,424
|
Percent of class:
|
55.35%
|
(b) Number of shares as to which the person has:
|
|||
(i) Sole power to vote or to direct the vote:
|
0
|
||
(ii) Shared power to vote or to direct the vote:
|
30,400,424
|
||
(iii) Sole power to dispose or to direct the disposition of:
|
0
|
||
(iv) Shared power to dispose or to direct the disposition of:
|
30,400,424
|
Wexford Capital LP
|
|||
(a) Amount beneficially owned:
|
31,234,031
|
Percent of class:
|
56.63%
|
(b) Number of shares as to which the person has:
|
|||
(i) Sole power to vote or to direct the vote:
|
0
|
||
(ii) Shared power to vote or to direct the vote:
|
31,234,031
|
||
(iii) Sole power to dispose or to direct the disposition of:
|
0
|
||
(iv) Shared power to dispose or to direct the disposition of:
|
31,234,031
|
Wexford GP LLC
|
|||
(a) Amount beneficially owned:
|
31,234,031
|
Percent of class:
|
56.63%
|
(b) Number of shares as to which the person has:
|
|||
(i) Sole power to vote or to direct the vote:
|
0
|
||
(ii) Shared power to vote or to direct the vote:
|
31,234,031
|
||
(iii) Sole power to dispose or to direct the disposition of:
|
0
|
||
(iv) Shared power to dispose or to direct the disposition of:
|
31,234,031
|
Charles E. Davidson
|
|||
(a) Amount beneficially owned:
|
31,234,031
|
Percent of class:
|
56.63%
|
(b) Number of shares as to which the person has:
|
|||
(i) Sole power to vote or to direct the vote:
|
0
|
||
(ii) Shared power to vote or to direct the vote:
|
31,234,031
|
||
(iii) Sole power to dispose or to direct the disposition of:
|
0
|
||
(iv) Shared power to dispose or to direct the disposition of:
|
31,234,031
|
||
Joseph M. Jacobs
|
|||
(a) Amount beneficially owned:
|
31,234,031
|
Percent of class:
|
56.63%
|
(b) Number of shares as to which the person has
|
|||
(i) Sole power to vote or to direct the vote:
|
0
|
||
(ii) Shared power to vote or to direct the vote:
|
31,234,031
|
||
(iii) Sole power to dispose or to direct the disposition of:
|
0
|
||
(iv) Shared power to dispose or to direct the disposition of:
|
31,234,031
|
Item 6. |
Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer
|
Item 7. |
Material to be Filed as Exhibits
|
1. |
Form of Unsecured Promissory Note issued June 3 and 9, 2016 (incorporated by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed June 14, 2016).
|
2. |
Form of Common Stock Purchase Warrant issued June 3 and 9, 2016 (incorporated by reference to Exhibit 4.2 to the Company’s Current Report on Form 8-K filed June 14, 2016).
|
3. |
Form of Note and Warrant Purchase Agreement entered into on June 3, 2016, between the Company and the purchasers of the Notes and Warrants sold by the Company on June 3 and 9, 2016 (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed June 14, 2016).
|
LAMBDA INVESTORS LLC
|
|||
By:
|
/s/ Arthur H. Amron
|
||
Name:
|
Arthur H. Amron
|
||
Title:
|
Vice President and Assistant Secretary
|
||
WEXFORD CAPITAL LP
|
|||
By:
|
Wexford GP LLC, its general partner
|
||
By:
|
/s/ Arthur H. Amron
|
||
Name:
|
Arthur H. Amron
|
||
Title:
|
Vice President and Assistant Secretary
|
||
WEXFORD GP LLC
|
|||
By:
|
/s/ Arthur H. Amron
|
||
Name:
|
Arthur H. Amron
|
||
Title:
|
Vice President and Assistant Secretary
|
||
/s/ Charles E. Davidson
|
|||
CHARLES E. DAVIDSON
|
|||
/s/ Joseph M. Jacobs
|
|||
JOSEPH M. JACOBS
|