| ITEM
1(a). |
NAME OF ISSUER:
Mercury Systems Inc.
|
| ITEM
1(b). |
ADDRESS OF ISSUER'S PRINCIPAL
EXECUTIVE OFFICES:
50 MINUTEMAN ROAD
ANDOVER, MA 01810
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| ITEM
2(a). |
NAME OF PERSON
FILING:
Conestoga Capital Advisors LLC
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| ITEM
2(b). |
ADDRESS OF PRINCIPAL BUSINESS
OFFICE OR, IF NONE, RESIDENCE:
550 E.Swedesford Rd.
Suite 120
Wayne, PA 19087
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| ITEM
2(c). |
CITIZENSHIP:
Delaware
|
| ITEM
2(d). |
TITLE OF CLASS OF
SECURITIES:
Common Stock, par value $0.01 per
share
|
| ITEM
2(e). |
CUSIP NUMBER:
589378108
|
|
ITEM 3. |
IF THIS STATEMENT IS FILED
PURSUANT TO SECTION 240.13d-1(b), or 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. 78c); |
|
(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)
[X] |
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); |
|
(k)
[ ] |
Group, in accordance with 240.13d-1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with
240.13d1(b)(1)(ii)(J), please specify the type of institution: |
|
|
|
ITEM 4. |
OWNERSHIP |
| As of December 31, 2021, the Reporting
Person indirectly beneficially owned 3,662,721 shares 6.47% of the
Issuers (Class A) Common Stock. Such shares of the Issuers (Class
A) Common Stock were directly beneficially owned by the
Accounts. |
| (a) Amount beneficially
owned: |
| As of December 31, 2021, the Reporting
Persons Conestoga Capital Advisors indirectly beneficially owned
3,662,721 shares of the 56,645,864 of the Issuers Common Stock
indirectly beneficially owned by Conestoga Capital Advisors. Such
shares of the Issuers Common Stock were directly beneficially owned
by the Accounts. |
| (b) Percent of
class: |
| 1As of December 31, 2021, the
Reporting Persons indirectly beneficially owned 6.47% of the
Issuers issued and outstanding Common Stock (based on 56,645,864
shares of the Issuers Common Stock outstanding as of October 31,
2021 as reported by the Issuer in its Quarterly Report on Form 10-Q
filed with the Securities and Exchange Commission on November 9,
2021). |
| (c) Number of shares as to
which the person has: |
| (i) sole
power to vote or to direct the vote: |
|
3,514,478 |
| (ii)
shared power to vote or to direct the vote: |
| 0 |
| (iii) sole
power to dispose or direct the disposition of: |
|
3,662,721 |
| (iv)
shared power to dispose or to direct the disposition of: |
| 0 |
| ITEM
5. |
OWNERSHIP OF FIVE PERCENT OR
LESS OF A CLASS:
If this statement is being filed to
report the fact that as of the date hereof the reporting person has
ceased to be the beneficial owner of more than five percent of the
class of securities, check the following [ ].
|
| ITEM
6. |
OWNERSHIP OF MORE THAN FIVE
PERCENT ON BEHALF OF ANOTHER PERSON:
|
| 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:
|
| ITEM
9. |
NOTICE OF DISSOLUTION OF
GROUP:
|
| ITEM
10. |
CERTIFICATION:
By signing below I certify that, to
the best of my knowledge and belief, the securities referred to
above were acquired and are held in the ordinary course of business
and were not acquired and are not held for the purpose of or with
the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or
effect.
|