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<p style="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">WASHINGTON, D.C. 20549</p>

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<p style="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">CURRENT REPORT</p>

<p style="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><b>Not Applicable</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">(Former name or former address, if changed since last
report.)</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p>

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    <td style="font: 10pt Times New Roman, Times, Serif">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">Securities registered pursuant to Section 12(b) of the Act:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">Indicate by check mark whether the registrant is an emerging growth company
as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of
1934 (&#167;240.12b-2 of this chapter).</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">If an emerging growth company, indicate by check mark if the registrant
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to Section 13(a) of the Exchange Act. &#9744;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

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    <td style="font: bold 10pt Times New Roman, Times, Serif; width: 56pt">Item 8.01.</td>
    <td style="font: bold 10pt Times New Roman, Times, Serif">Other Events. </td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">On May 22, 2024, BlackRock TCP Capital Corp. (the &#8220;Company&#8221;)
entered into an underwriting agreement (the &#8220;Underwriting Agreement&#8221;) by and among the Company, Tennenbaum Capital Partners,
LLC, Series H of SVOF/MM, LLC and Morgan Stanley &amp; Co. LLC, as representative of the underwriters named in Schedule A thereto, in
connection with the issuance and sale of $325,000,000 aggregate principal amount of the Company&#8217;s 6.95% Notes due 2029 (the &#8220;Notes&#8221;).
The Notes are expected to be issued on or about May 30, 2024, subject to customary closing conditions.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">The Notes will be the senior unsecured obligations
of the Company. The Company intends to use the net proceeds of the offering of the Notes to repay the Company&#8217;s outstanding 3.900%
Notes due 2024 at or before maturity and for the temporary repayment of the Company&#8217;s other indebtedness. The Company may also
invest the net proceeds of the offering of the Notes in accordance with its investment objective and for other general corporate purposes,
including the payment of operating expenses.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">The offering of the Notes was made pursuant to the
Company&#8217;s effective shelf registration statement on Form N-2 (Registration No. 333-267593) previously filed with the Securities
and Exchange Commission on September 23, 2022, as supplemented by a preliminary prospectus supplement dated May 22, 2024 and a final
prospectus supplement dated May 22, 2024.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">The foregoing description of the Underwriting Agreement
does not purport to be complete and is qualified in its entirety by reference to the full text of the Underwriting Agreement filed with
this report as Exhibit 1.1 and which is incorporated herein by reference.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: bold 10pt Times New Roman, Times, Serif; width: 56pt">Item 9.01.</td>
    <td style="font: bold 10pt Times New Roman, Times, Serif">Financial Statements and Exhibits.</td></tr>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0"><i>&#160;</i></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0"><i>(d) <span style="text-decoration: underline">Exhibits</span></i></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0"><i>&#160;</i></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 36pt">1.1</td>
    <td style="font: 10pt Times New Roman, Times, Serif"><a href="btcpcc-html7972_ex9911.htm">Underwriting Agreement, dated May 22, 2024, by and among BlackRock TCP Capital Corp., Tennenbaum Capital Partners, LLC, Series H of SVOF/MM, LLC and Morgan Stanley &amp; Co. LLC , as representative of the underwriters named in Schedule A thereto.</a></td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <td style="font: 10pt Times New Roman, Times, Serif">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif">&#160;</td></tr>
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    <td style="font: 10pt Times New Roman, Times, Serif">104</td>
    <td style="font: 10pt Times New Roman, Times, Serif">Cover Page Interactive Date File (embedded within the Inline XBRL document).</td></tr>
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<p style="font: bold 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">SIGNATURES</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0; text-indent: 36pt">Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">Date: May 23, 2024</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0">&#160;</p>

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    <td style="font: 10pt Times New Roman, Times, Serif">By:</td>
    <td colspan="2" style="border-bottom: Black 1pt solid; font: 10pt Times New Roman, Times, Serif">/s/ Erik
    L. Cuellar</td></tr>
  <tr style="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
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    <td style="font: 10pt Times New Roman, Times, Serif; width: 5%">&#160;</td>
    <td style="font: 10pt Times New Roman, Times, Serif; width: 5%">Name:</td>
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    <td style="font: 10pt Times New Roman, Times, Serif">Title:</td>
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM
8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934
Date of Report (Date
of earliest event reported):
May
23, 2024
(May 22, 2024)
BLACKROCK TCP CAPITAL CORP.
(Exact name of registrant as specified in its
charter)
Delaware
814-00899
56-2594706
(State or other jurisdiction
of incorporation)
(Commission File
    Number)
(IRS Employer
    Identification No.)
2951 28th Street
,
Suite 1000
Santa Monica
,
California
90405
(Address of Principal
    Executive Offices)
(Zip Code)
Registrant's telephone number, including area
code
(
310
)
566-1000
Not Applicable
(Former name or former address, if changed since last
report.)
Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐
Written communications pursuant to Rule 425 under the Securities
    Act (17 CFR 230.425)
☐
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))
☐
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title
    of each class
Trading
    Symbol(s)
Name
    of each exchange on which registered
Common stock,
    $0.001 par value per share
TCPC
NASDAQ
Global
    Select Market
Indicate by check mark whether the registrant is an emerging growth company
as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of
1934 (§240.12b-2 of this chapter).
☐
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act. ☐
Item 8.01.
Other Events.
On May 22, 2024, BlackRock TCP Capital Corp. (the "Company")
entered into an underwriting agreement (the "Underwriting Agreement") by and among the Company, Tennenbaum Capital Partners,
LLC, Series H of SVOF/MM, LLC and Morgan Stanley & Co. LLC, as representative of the underwriters named in Schedule A thereto, in
connection with the issuance and sale of $325,000,000 aggregate principal amount of the Company's 6.95% Notes due 2029 (the "Notes").
The Notes are expected to be issued on or about May 30, 2024, subject to customary closing conditions.
The Notes will be the senior unsecured obligations
of the Company. The Company intends to use the net proceeds of the offering of the Notes to repay the Company's outstanding 3.900%
Notes due 2024 at or before maturity and for the temporary repayment of the Company's other indebtedness. The Company may also
invest the net proceeds of the offering of the Notes in accordance with its investment objective and for other general corporate purposes,
including the payment of operating expenses.
The offering of the Notes was made pursuant to the
Company's effective shelf registration statement on Form N-2 (Registration No. 333-267593) previously filed with the Securities
and Exchange Commission on September 23, 2022, as supplemented by a preliminary prospectus supplement dated May 22, 2024 and a final
prospectus supplement dated May 22, 2024.
The foregoing description of the Underwriting Agreement
does not purport to be complete and is qualified in its entirety by reference to the full text of the Underwriting Agreement filed with
this report as Exhibit 1.1 and which is incorporated herein by reference.
Item 9.01.
Financial Statements and Exhibits.
(d)
Exhibits
1.1
Underwriting Agreement, dated May 22, 2024, by and among BlackRock TCP Capital Corp., Tennenbaum Capital Partners, LLC, Series H of SVOF/MM, LLC and Morgan Stanley & Co. LLC , as representative of the underwriters named in Schedule A thereto.
104
Cover Page Interactive Date File (embedded within the Inline XBRL document).
SIGNATURES
Pursuant to the requirements of the Securities Exchange
Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: May 23, 2024
BLACKROCK TCP CAPITAL CORP.
By:
/s/ Erik
    L. Cuellar
Name:
Erik L. Cuellar
Title:
Chief Financial Officer