| Item 1. | |
| (a) | Name of issuer:
Ascendis Pharma A/S |
| (b) | Address of issuer's principal executive
offices:
TUBORG BOULEVARD 12 HELLERUP, DENMARK DK-2900 |
| Item 2. | |
| (a) | Name of person filing:
Westfield Capital Management Company, L.P. |
| (b) | Address or principal business office or, if
none, residence:
1 Financial Center, 24th Floor
Boston, Massachusetts
02111 |
| (c) | Citizenship:
Westfield Capital Management Company, L.P. - MASSACHUSETTS |
| (d) | Title of class of securities:
Common Stock |
| (e) | CUSIP No.:
04351P101 |
| 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); |
| (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 § 240.13d-1(b)(1)(ii)(E); |
| (f) | An
employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F); |
| (g) | A
parent holding company or control person in accordance with § 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) | 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: |
| (k) | Group,
in accordance with Rule 240.13d-1(b)(1)(ii)(K). |
| | |
| Item 4. | Ownership |
| (a) | Amount beneficially owned:
4075214 |
| (b) | Percent of class:
9.18 % |
| (c) | Number of shares as to which the person has:
|
| | (i) Sole power to vote or to direct the vote:
Westfield Capital Management Company, L.P. - 3261984
|
| | (ii) Shared power to vote or to direct the
vote:
Westfield Capital Management Company, L.P. - 0
|
| | (iii) Sole power to dispose or to direct the
disposition of:
Westfield Capital Management Company, L.P. - 4075214
|
| | (iv) Shared power to dispose or to direct the
disposition of:
Westfield Capital Management Company, L.P. - 0
|
| Item 5. | Ownership of 5 Percent or Less of a Class. |
| | |
| Item 6. | Ownership of more than 5 Percent on Behalf of
Another Person. |
| |
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.
The shares of the security listed in this Schedule are owned of record by clients of Westfield Capital Management Company, L.P. (Westfield) in its capacity as investment adviser. Westfield's clients have the right to receive, or the power to direct the receipt of, dividends or proceeds from the sale of the shares. To the best of Westfield's knowledge, no client has such right or power with respect to more than five percent of this class of security. |
| Item 7. | Identification and Classification of the
Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or
Control Person. |
| |
Not Applicable
|
| Item 8. | Identification and Classification of Members
of the Group. |
| |
Not Applicable
|
| Item 9. | Notice of Dissolution of Group. |
| |
Not Applicable
|
