Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:
*The remainder of this cover page shall be filled out for a
reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment
containing information which would alter disclosures provided in a prior cover page.
The information required on the remainder of this cover page
shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”)
or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).
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Schedule 13G
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Page 2 of 12
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CUSIP NO. 00788A105
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1.
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Names of Reporting Persons
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F.E.R. fischer Edelstahlrohre GmbH
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2.
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a)
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(b)
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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
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Germany
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Number of
Shares
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5.
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Sole Voting Power
0
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Beneficially
Owned by
Each
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6.
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Shared Voting Power
5,124,846(1)
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Reporting
Person With
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7.
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Sole Dispositive Power
0
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8.
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Shared Dispositive Power
5,124,846(1)
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(1) All 5,124,846 shares are held of record by F.E.R.
fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE & Co. KG (“Fischer
KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests in Fischer KG are
held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
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Schedule 13G
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Page 3 of 12
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CUSIP NO. 00788A105
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9.
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Aggregate Amount Beneficially Owned by Each Reporting Person
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5,124,846(1)
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10.
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Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) o
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11.
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Percent of Class Represented by Amount in Row (9)*
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9.99%(2)
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12.
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Type of Reporting Person (See Instructions)
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CO
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(1) All 5,124,846 shares are held of record by F.E.R.
fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE & Co. KG (“Fischer
KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests in Fischer KG are
held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
(2) The percentage
of ownership reported in this Schedule 13G is based upon 46,128,745 shares of common stock of the issuer outstanding as of August
10, 2021, as reported on the issuer’s Quarterly Report on Form 10-Q filed with the SEC on August 12, 2021. The 5,124,846
shares beneficially owned by the Reporting Persons were issued to Fischer GmbH upon the consummation of the sale by Fischer GmbH
of two of its subsidiaries to the issuer, as reported by the issuer In Its Current Report on Form 8-K filed with the SEC on September
1, 2021.
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Schedule 13G
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Page 4 of 12
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CUSIP NO. 00788A105
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1.
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Names of Reporting Persons
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fischer group SE & Co. KG
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2.
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a)
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(b)
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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
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Germany
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Number of
Shares
|
5.
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Sole Voting Power
0
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Beneficially
Owned by
Each
|
6.
|
Shared Voting Power
5,124,846(1)
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Reporting
Person With
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7.
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Sole Dispositive Power
0
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|
|
8.
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Shared Dispositive Power
5,124,846(1)
|
(1) All 5,124,846
shares are held of record by F.E.R. fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer
group SE & Co. KG (“Fischer KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The
remaining interests in Fischer KG are held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
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Schedule 13G
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Page 5 of 12
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CUSIP NO. 00788A105
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9.
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Aggregate Amount Beneficially Owned by Each Reporting Person
|
|
|
|
|
|
5,124,846(1)
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10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) o
|
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11.
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Percent of Class Represented by Amount in Row (9)*
|
|
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9.99%(2)
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12.
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Type of Reporting Person (See Instructions)
|
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CO
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(1) All 5,124,846 shares are held of record by F.E.R.
fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE & Co. KG (“Fischer
KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests in Fischer KG are
held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
(2) The percentage of ownership reported in this
Schedule 13G is based upon 46,128,745 shares of common stock of the issuer outstanding as of August 10, 2021, as reported on the
issuer’s Quarterly Report on Form 10-Q filed with the SEC on August 12, 2021. The 5,124,846 shares beneficially owned by
the Reporting Persons were issued to Fischer GmbH upon the consummation of the sale by Fischer GmbH of two of its subsidiaries
to the issuer, as reported by the issuer In Its Current Report on Form 8-K filed with the SEC on September 1, 2021.
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Schedule 13G
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Page 6 of 12
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CUSIP NO. 00788A105
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1.
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Names of Reporting Persons
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Johann Fischer
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2.
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Check the Appropriate Box if a Member of a Group (See Instructions)
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(a)
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(b)
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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
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Germany
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|
Number of
Shares
|
5.
|
Sole Voting Power
0
|
|
Beneficially
Owned by
Each
|
6.
|
Shared Voting Power
5,124,846(1)
|
|
Reporting
Person With
|
7.
|
Sole Dispositive Power
0
|
|
|
8.
|
Shared Dispositive Power
5,124,846(1)
|
(1) All 5,124,846 shares are held of record by F.E.R.
fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE & Co. KG (“Fischer
KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests in Fischer KG are
held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
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Schedule 13G
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Page 7 of 12
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CUSIP NO. 00788A105
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9.
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Aggregate Amount Beneficially Owned by Each Reporting Person
|
|
|
|
|
|
5,124,846(1)
|
|
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10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) o
|
|
|
|
|
11.
|
Percent of Class Represented by Amount in Row (9)*
|
|
|
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9.99%(2)
|
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12.
|
Type of Reporting Person (See Instructions)
|
|
|
|
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|
IN
|
(1) All 5,124,846 shares are held of record by F.E.R.
fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE & Co. KG (“Fischer
KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests in Fischer KG are
held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
(2) The percentage of ownership reported in this
Schedule 13G is based upon 46,128,745 shares of common stock of the issuer outstanding as of August 10, 2021, as reported on the
issuer’s Quarterly Report on Form 10-Q filed with the SEC on August 12, 2021. The 5,124,846 shares beneficially owned by
the Reporting Persons were issued to Fischer GmbH upon the consummation of the sale by Fischer GmbH of two of its subsidiaries
to the issuer, as reported by the issuer In Its Current Report on Form 8-K filed with the SEC on September 1, 2021.
|
Schedule
13G
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Page
8 of 12
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CUSIP NO. 00788A105
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Item 1.
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(a)
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Name of Issuer:
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Advent Technologies Holdings, Inc.
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(b)
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Address of Issuer’s Principal Executive
Offices:
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200 Clarendon Street
Boston, MA 02116
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Item 2.
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(a)
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Name of Person Filing:
|
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F.E.R. fischer Edelstahlrohre GmbH
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fischer group SE & Co. KG
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Johann Fischer
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(b)
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Address of Principal Business Office or,
if none, Residence:
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Im Gewerbegebiet 7
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77855 Achern-Fautenbach
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Germany
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(c)
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Citizenship:
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F.E.R. fischer Edelstahlrohre GmbH is formed under the laws of Germany.
fischer group SE & Co. KG is formed under the laws of Germany. Johann Fischer is a German citizen.
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(d)
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Title of Class of Securities:
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Common Stock, par value $0.0001 per share
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(e)
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CUSIP Number:
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00788A105
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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:
|
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(a)
|
[ ]
|
Broker or dealer registered under Section 15 of the
Act (15 U.S.C. 78o).
|
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(b)
|
[ ]
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Bank as defined in Section 3(a)(6) of the Act (15 U.S.C.
78c).
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|
Schedule
13G
|
Page
9 of 12
|
CUSIP NO. 00788A105
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(c)
|
[ ]
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Insurance company as defined in Section
3(a)(19) of the Act (15 U.S.C. 78c).
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|
|
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(d)
|
[ ]
|
Investment company registered under Section 8 of the
Investment Company Act of 1940 (15 U.S.C. 80a-8).
|
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|
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(e)
|
[ ]
|
An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E).
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(f)
|
[ ]
|
An employee benefit plan or endowment fund in accordance
with §240.13d-(b)(1)(ii)(F).
|
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|
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(g)
|
[ ]
|
A parent holding company or control person in accordance
with §240.13d-1(b)(1)(ii)(G).
|
|
|
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|
|
(h)
|
[ ]
|
A savings association as defined in Section 3(b) of
the Federal Deposit Insurance Act (12 U.S.C. 1813).
|
|
|
|
|
|
|
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(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).
|
|
|
|
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|
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(j)
|
[ ]
|
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J).
|
|
|
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|
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(k)
|
[ ]
|
Group, in accordance with §240.13d-(b)(1)(ii)(K).
|
|
|
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|
|
Not applicable.
|
|
|
|
|
Item 4.
|
Ownership.
|
|
|
|
|
|
(a)
|
Amount
Beneficially Owned: 5,124,846 shares(1)
|
|
|
|
|
|
|
(b)
|
Percent
of Class: 9.99%(2)
|
(1) All 5,124,846 shares are held
of record by F.E.R. fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE &
Co. KG (“Fischer KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests
in Fischer KG are held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
(2) The percentage of ownership
reported in this Schedule 13G is based upon 46,128,745 shares of common stock of the issuer outstanding as of August 10, 2021,
as reported on the issuer’s Quarterly Report on Form 10-Q filed with the SEC on August 12, 2021. The 5,124,846 shares beneficially
owned by the Reporting Persons were issued to Fischer GmbH upon the consummation of the sale by Fischer
|
Schedule
13G
|
Page
10 of 12
|
CUSIP NO. 00788A105
|
|
(c)
|
Number of shares as to which such person has:
|
|
|
|
|
|
|
|
(i)
|
Sole power to vote or to direct the vote: 0
|
|
|
|
|
|
|
|
|
(ii)
|
Shared power to vote or to direct the vote: 5,124,846(1)
|
|
|
|
|
|
|
|
|
(iii)
|
Sole power to dispose or to direct the disposition
of: 0
|
|
|
|
|
|
|
|
|
(iv)
|
Shared power to dispose or to direct the disposition
of: 5,124,846(1)
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
Not applicable.
|
|
|
|
|
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.
|
|
|
|
|
Item 10.
|
Certifications.
|
GmbH of two of its subsidiaries to the issuer,
as reported by the issuer In Its Current Report on Form 8-K filed with the SEC on September 1, 2021.
(1) All 5,124,846 shares are held
of record by F.E.R. fischer Edelstahlrohre GmbH (“Fischer GmbH”). Fischer GmbH is 100% owned by fischer group SE &
Co. KG (“Fischer KG”). Johann Fischer holds an interest and 51% of the voting power in Fischer KG. The remaining interests
in Fischer KG are held by Hans-Peter Fischer, Roland Fischer and Michaela Behrle.
|
Schedule
13G
|
Page
11 of 12
|
CUSIP NO. 00788A105
Not applicable.
SIGNATURE
After reasonable inquiry and to the best
of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
|
Date: September 7, 2021
|
|
F.E.R. fischer Edelstahlrohre GmbH
|
|
|
|
fischer group SE & Co. KG
|
|
|
|
Johann Fischer
|
|
|
|
|
|
|
|
/s/ Björn Weber
|
|
|
|
By:
|
Björn Weber
|
|
|
|
Title:
|
Attorney-in-Fact
|
|
Schedule
13G
|
Page
12 of 12
|
CUSIP NO. 00788A105
EXHIBIT A
JOINT FILING AGREEMENT PURSUANT TO
RULE 13d-1(k)(1)
The undersigned persons hereby agree that
reports on Schedule 13G, and amendments thereto, with respect to the shares of Common Stock, par value $0.0001 per share, of Advent
Technologies Holdings, Inc. may be filed in a single statement on behalf of each of such persons, and further, each of such persons
designates Björn Weber as its or his agent and Attorney-in-Fact for the purpose of executing any and all Schedule 13G filings,
and amendments thereto, required to be made by it or him with the Securities and Exchange Commission.
|
Date: September 7, 2021
|
|
F.E.R. fischer Edelstahlrohre GmbH
|
|
|
|
|
|
|
|
|
/s/ Björn Weber
|
|
|
|
By:
|
Björn Weber
|
|
|
|
Title:
|
Managing Director
|
|
|
|
|
|
|
|
|
fischer group SE & Co. KG
|
|
|
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|
|
|
|
By: fischer group Verwaltungs SE, its general partner
|
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|
|
|
|
|
|
/s/ Björn Weber
|
|
|
|
By:
|
Björn Weber
|
|
|
|
Title:
|
Executive Director
|
|
|
|
|
|
|
|
|
/s/ Johann Fischer
|