Page 4 of 6 – SEC Filing
13G
CUSIP No.
69366J200
69366J200
Page 4 of
6
6
| |
ITEM 1.
(a) Name of
Issuer:
Issuer:
PTC Therapeutics,
Inc.
Inc.
(b) Address of
Issuer’s Principal Executive Offices:
Issuer’s Principal Executive Offices:
100 Corporate
Court, South Plainfield, NJ 07080
Court, South Plainfield, NJ 07080
ITEM 2.
(a) Name of Person
Filing:
Filing:
Camber Capital
Management LLC
Management LLC
Stephen
DuBois
DuBois
(b) Address of
Principal Business Office, or if None, Residence:
Principal Business Office, or if None, Residence:
Camber Capital
Management LLC
Management LLC
Stephen
DuBois
DuBois
101 Huntington
Avenue
Avenue
Suite
2101
2101
Boston, MA
02199
02199
(c)
Citizenship:
Citizenship:
Camber Capital
Management LLC –
Massachusetts
Management LLC –
Massachusetts
Stephen
DuBois – United
States
DuBois – United
States
(d) Title of Class
of Securities:
of Securities:
Common Stock, par
value. $0.001 per share
value. $0.001 per share
(e) CUSIP
Number:
Number:
69366J200
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO
SS.240.13d-1(b) OR 240.13d-2(b) OR (c), CHECK WHETHER THE PERSON
FILING IS A:
SS.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). |
| | (b) | [_] | Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c). |
| | (c) | [_] | Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c). |
| | (d) | [_] | Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8). |
| | (e) | [_] | An investment adviser in accordance with ss.240.13d-1(b)(1)(ii)(E); |
| | (f) | [_] | An employee benefit plan or endowment fund in accordance with ss.240.13d-1(b)(1)(ii)(F); |
| | (g) | [_] | A parent holding company or control person in accordance with ss.240.13d-1(b)(1)(ii)(G); |
| | (h) | [_] | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); |
| | (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); |
| | (j) | [_] | Group, in accordance with ss.240.13d-1(b)(1)(ii)(J). |
ITEM 4. OWNERSHIP.
Provide the
following information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item
1.
following information regarding the aggregate number and percentage
of the class of securities of the issuer identified in Item
1.
(a) Amount
beneficially owned: Camber Capital Management LLC –
2,000,000
shares
beneficially owned: Camber Capital Management LLC –
2,000,000
shares
Stephen DuBois
– 2,000,000
shares
– 2,000,000
shares
(b) Percent of
class: Camber Capital Management LLC –
5.84%
class: Camber Capital Management LLC –
5.84%
Stephen DuBois
– 5.84%
– 5.84%
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