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<div style="FONT-SIZE: 14pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">UNITED STATES</div>

<div style="FONT-SIZE: 14pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">SECURITIES AND EXCHANGE COMMISSION</div>

<div style="FONT-SIZE: 14pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">WASHINGTON, D.C. 20549</div>

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<div style="FONT-SIZE: 18pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">FORM 8-K</div>

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<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: center">CURRENT REPORT</div>

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<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">PURSUANT TO SECTION 13 OR 15(D) OF</div>

<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">THE SECURITIES EXCHANGE ACT OF 1934</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">Date of Report (Date of earliest event reported): November 20, 2017</div>

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<div style="FONT-SIZE: 24pt; FONT-WEIGHT: bold; TEXT-ALIGN: center">FIRST GUARANTY BANCSHARES, INC.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Exact Name of Registrant as Specified in Charter)</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">Louisiana</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">001-37621</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">26-0513559</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(State or Other Jurisdiction)</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">of Incorporation)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Commission File No.)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(I.R.S. Employer</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">Identification No.)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">400 East Thomas Street, Hammond, LA</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">70401</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(Address of Principal Executive Offices)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Zip Code)</div>
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<div>Registrant&#8217;s telephone number, including area code:</div>
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<div>(985) 345-7685</div>
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<div style="TEXT-ALIGN: center">Not Applicable</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: center">(Former name or former address, if changed since last report)</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">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:</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#9744;&#160; Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#9744;&#160; Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#9744;&#160; Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">&#9744;&#160; Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000; TEXT-ALIGN: justify">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule&#160;405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule&#160;12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000; TEXT-ALIGN: left">Emerging growth company&#160;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">&#9746;</font></div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000; TEXT-ALIGN: left">&#160;</div>

<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; COLOR: #000000; TEXT-ALIGN: justify">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&#160;13(a)&#160;of the Exchange Act.&#160;<font style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">&#9746;</font></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: justify">Item 1.01</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: justify"><u>Entry into a Material Definitive Agreement</u></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">On November 20, 2017, First Guaranty Bancshares, Inc. (the &#8220;Company&#8221; or &#8220;we&#8221;) entered into a Distribution Agreement (the &#8220;Agreement&#8221;) with Sandler O&#8217;Neill &amp; Partners, L.P., as sales agent (&#8220;Sandler O&#8217;Neill&#8221;), pursuant to which the Company may offer and sell, from time to time through Sandler O&#8217;Neill, shares of our common stock, par value $1.00 per share (the &#8220;Common Stock&#8221;), having an aggregate gross sales price of up to $25.0 million.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">Any sales of our Common Stock made under the Agreement will be sales deemed to be &#8220;at-the-market&#160;offerings,&#8221; as defined in Rule 415 under the Securities Act of 1933, as amended. These sales will be made by means of ordinary broker transactions on the NASDAQ Global Market at market prices prevailing at the time, at prices related to the prevailing market prices, or at negotiated prices. We will pay Sandler O&#8217;Neill a commission rate of 3.0% of the aggregate purchase price of each sale of shares of Common Stock.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">We are not obligated to make any sales of Common Stock under the Agreement. We also may instruct Sandler O&#8217;Neill as to the maximum number of shares of Common Stock it may sell on any given day, as well as the minimum price per share.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The Distribution Agreement contains representations and warranties and covenants that are customary for transactions of this type. In addition, the Company has agreed to indemnify Sandler O&#8217;Neill against certain liabilities on customary terms, subject to limitations on such arrangements imposed by applicable law and regulation. In the ordinary course of its business, Sandler O&#8217;Neill and/or their affiliates have engaged and may engage in commercial and investment banking transactions, financial advisory and other transactions with the Company.&#160;Sandler O&#8217;Neill has received, or may receive, customary compensation and expenses in connection with such other transactions.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The Agreement may be terminated by either the Company or Sandler O&#8217;Neill, each in its sole discretion, by giving written notice to the other party as provided for in the Agreement. The Agreement will automatically terminate following the sale of shares of Common Stock having an aggregate gross sales price of $25.0&#160;million.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">In addition, we also may sell shares of Common Stock to Sandler O&#8217;Neill as principal for its own account, at a price agreed upon at the time of sale. If we sell shares to Sandler O&#8217;Neill as principal or other than in accordance with the Agreement, we will enter into a separate agreement setting forth the terms of such transaction.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; TEXT-INDENT: 36pt">The foregoing description of the Agreement does not purport to be complete and is qualified in its entirety by reference to the Agreement. The Agreement is filed as Exhibit&#160;10.1 hereto and is incorporated herein by reference. The description of the Agreement has been included to provide information regarding its terms. It is not intended to provide any other factual information about the Company. In particular, investors should not rely on the representations, warranties and covenants or any descriptions thereof as characterizations of the actual state of facts or condition of the Company or any of its subsidiaries or affiliates.<br>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: justify"><u>Other Events</u></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left; TEXT-INDENT: 36pt">On November 20, 2017, the Company issued a press release announcing the commencement of the at-the-market&#160;offering. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left">Item 9.01.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: left"><u>Financial Statements and Exhibits.</u></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: left">(a)</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Not Applicable.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Not Applicable.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Not Applicable.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Exhibits</div>
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<div>Exhibit No.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-VARIANT: normal; FONT-WEIGHT: normal; FONT-STYLE: normal">Description</div>
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<div><a href="s001947x4_ex5-1.htm">Exhibit 5.1</a></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">Opinion of Luse Gorman, PC.</div>
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<div><a href="s001947x4_ex10-1.htm">Exhibit 10.1</a></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">Distribution Agreement by and between First Guaranty Bancshares, Inc. and Sandler O&#8217;Neill &amp; Partners, L.P., dated as of November 20, 2017.</div>
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<div><a href="s001947x4_ex5-1.htm">Exhibit 23.1</a></div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif">Consent of Luse Gorman, PC (included in Exhibit 5.1).</div>
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<td colspan="2"><a href="s001947x4_ex99-1.htm">Exhibit 99.1</a></td>
<td colspan="2">Press Release dated November 20, 2017.</td>
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<div style="TEXT-ALIGN: center"><u style="FONT-WEIGHT: bold">SIGNATURES</u></div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify; 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.</div>

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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; FONT-WEIGHT: bold; TEXT-ALIGN: justify">FIRST GUARANTY BANCSHARES, INC.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Date:&#160; November 20, 2017</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">By:</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">/s/ Alton B. Lewis, Jr.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Alton B. Lewis, Jr.</div>
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<div style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman', Times, serif; TEXT-ALIGN: justify">Vice Chairman of the Board and Principal Executive Officer</div>
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[{"type": "8-K", "sequence": "1", "filename": "s001947x4_8k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 24964}]
{"company-data": {"conformed-name": "First Guaranty Bancshares, Inc.", "cik": "0001408534", "assigned-sic": "6035", "irs-number": "260513559", "state-of-incorporation": "LA", "fiscal-year-end": "0923"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-37621", "film-number": "171212781"}, "business-address": {"street1": "400 EAST THOMAS STREET", "city": "HAMMOND", "state": "LA", "zip": "70401", "phone": "985-345-7685"}, "mail-address": {"street1": "400 EAST THOMAS STREET", "city": "HAMMOND", "state": "LA", "zip": "70401"}}
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): November 20, 2017
FIRST GUARANTY BANCSHARES, INC.
(Exact Name of Registrant as Specified in Charter)
Louisiana
001-37621
26-0513559
(State or Other Jurisdiction)
of Incorporation)
(Commission File No.)
(I.R.S. Employer
Identification No.)
400 East Thomas Street, Hammond, LA
70401
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
(985) 345-7685
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))
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 1.01
Entry into a Material Definitive Agreement
On November 20, 2017, First Guaranty Bancshares, Inc. (the "Company" or "we") entered into a Distribution Agreement (the "Agreement") with Sandler O'Neill & Partners, L.P., as sales agent ("Sandler O'Neill"), pursuant to which the Company may offer and sell, from time to time through Sandler O'Neill, shares of our common stock, par value $1.00 per share (the "Common Stock"), having an aggregate gross sales price of up to $25.0 million.
Any sales of our Common Stock made under the Agreement will be sales deemed to be "at-the-market offerings," as defined in Rule 415 under the Securities Act of 1933, as amended. These sales will be made by means of ordinary broker transactions on the NASDAQ Global Market at market prices prevailing at the time, at prices related to the prevailing market prices, or at negotiated prices. We will pay Sandler O'Neill a commission rate of 3.0% of the aggregate purchase price of each sale of shares of Common Stock.
We are not obligated to make any sales of Common Stock under the Agreement. We also may instruct Sandler O'Neill as to the maximum number of shares of Common Stock it may sell on any given day, as well as the minimum price per share.
The Distribution Agreement contains representations and warranties and covenants that are customary for transactions of this type. In addition, the Company has agreed to indemnify Sandler O'Neill against certain liabilities on customary terms, subject to limitations on such arrangements imposed by applicable law and regulation. In the ordinary course of its business, Sandler O'Neill and/or their affiliates have engaged and may engage in commercial and investment banking transactions, financial advisory and other transactions with the Company. Sandler O'Neill has received, or may receive, customary compensation and expenses in connection with such other transactions.
The Agreement may be terminated by either the Company or Sandler O'Neill, each in its sole discretion, by giving written notice to the other party as provided for in the Agreement. The Agreement will automatically terminate following the sale of shares of Common Stock having an aggregate gross sales price of $25.0 million.
In addition, we also may sell shares of Common Stock to Sandler O'Neill as principal for its own account, at a price agreed upon at the time of sale. If we sell shares to Sandler O'Neill as principal or other than in accordance with the Agreement, we will enter into a separate agreement setting forth the terms of such transaction.
The foregoing description of the Agreement does not purport to be complete and is qualified in its entirety by reference to the Agreement. The Agreement is filed as Exhibit 10.1 hereto and is incorporated herein by reference. The description of the Agreement has been included to provide information regarding its terms. It is not intended to provide any other factual information about the Company. In particular, investors should not rely on the representations, warranties and covenants or any descriptions thereof as characterizations of the actual state of facts or condition of the Company or any of its subsidiaries or affiliates.
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Item 8.01
Other Events
On November 20, 2017, the Company issued a press release announcing the commencement of the at-the-market offering. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.
Item 9.01.
Financial Statements and Exhibits.
(a)
Not Applicable.
(b)
Not Applicable.
(c)
Not Applicable.
(d)
Exhibits
Exhibit No.
Description
Exhibit 5.1
Opinion of Luse Gorman, PC.
Exhibit 10.1
Distribution Agreement by and between First Guaranty Bancshares, Inc. and Sandler O'Neill & Partners, L.P., dated as of November 20, 2017.
Exhibit 23.1
Consent of Luse Gorman, PC (included in Exhibit 5.1).
Exhibit 99.1
Press Release dated November 20, 2017.
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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.
FIRST GUARANTY BANCSHARES, INC.
Date:  November 20, 2017
By:
/s/ Alton B. Lewis, Jr.
Alton B. Lewis, Jr.
Vice Chairman of the Board and Principal Executive Officer
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