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            4</title><style type="text/css">
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      </style></head><body>SEC Form 4 
   <table width="100%" border="0" cellspacing="0" cellpadding="4"><tr><td width="20%" colspan="2" valign="top" align="center" class="FormName">FORM 4</td><td rowspan="2" width="60%" valign="middle" align="center"><span class="FormTitle">UNITED STATES SECURITIES AND EXCHANGE COMMISSION</span><br><span class="MedSmallFormText">Washington, D.C. 20549</span><br><br><span class="FormTitle">STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP</span><br><br><span class="MedSmallFormText">Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934</span><br><span class="MedSmallFormText">or Section 30(h) of the Investment Company Act of 1940</span></td><td rowspan="2" width="20%" valign="top" align="center"><table width="100%" border="1" summary="OMB Approval Status Box"><tr><td class="FormTextC">OMB APPROVAL</td></tr><tr><td><table width="100%" border="0" summary="OMB Interior Box"><tr><td class="SmallFormText" colspan="3">OMB Number:</td><td class="SmallFormTextR">3235-0287</td></tr><tr><td class="SmallFormText" colspan="4">Estimated average burden</td></tr><tr><td class="SmallFormText" colspan="3">hours per response:</td><td class="SmallFormTextR">0.5</td></tr></table></td></tr></table></td></tr><tr valign="middle"><td><table width="100%" border="1" cellpadding="0" cellspacing="0"><tr><td>  </td></tr></table></td><td class="SmallFormText">Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. 
         <i>See</i>

         Instruction 1(b).</td></tr><tr valign="middle"><td><table width="100%" border="1" cellpadding="0" cellspacing="0"><tr><td><span class="FormData">X</span></td></tr></table></td><td class="SmallFormText">Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. </td></tr></table><table width="100%" border="1" cellspacing="0" cellpadding="4"><tr><td rowspan="4" width="35%" valign="top"><span class="MedSmallFormText">1. Name and Address of Reporting Person<sup>*</sup></span><table border="0" width="100%"><tr><td><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001724346">Kaseta Michael</a></td></tr></table><hr width="98%"><table border="0" width="100%"><tr><td width="33%" class="MedSmallFormText">(Last)</td><td width="33%" class="MedSmallFormText">(First)</td><td width="33%" class="MedSmallFormText">(Middle)</td></tr></table><table border="0" width="100%"><tr><td><span class="FormData">419 DAVIS DRIVE, SUITE 100</span></td></tr><tr><td><span class="FormData"></span></td></tr></table><hr width="98%"><span class="MedSmallFormText">(Street)</span><table border="0" width="100%"><tr><td width="33%"><span class="FormData">MORRISVILLE</span></td><td width="33%"><span class="FormData">
				NORTH CAROLINA
			</span></td><td width="33%"><span class="FormData">27560</span></td></tr></table><hr width="98%"><table border="0" width="100%"><tr><td width="33%" class="MedSmallFormText">(City)</td><td width="33%" class="MedSmallFormText">(State)</td><td width="33%" class="MedSmallFormText">(Zip)</td></tr></table><hr width="98%"><table border="0" width="100%"><tr><td width="33%" colspen="3"><span class="FormData">UNITED STATES</span></td></tr></table><hr width="98%"><span class="MedSmallFormText">(Country)</span></td><td width="35%" valign="top"><span class="MedSmallFormText">2. Issuer Name <b>and</b> Ticker or Trading Symbol
      </span><br><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001819576">Liquidia Corp</a>
     [ <span class="FormData">LQDA</span> ]
   </td><td rowspan="2" valign="top"><span class="MedSmallFormText">5. Relationship of Reporting Person(s) to Issuer
      </span><br><span class="MedSmallFormText">(Check all applicable)</span><table border="0" width="100%"><tr><td width="15%" align="center"></td><td width="35%" class="MedSmallFormText">Director</td><td width="15%" align="center"></td><td width="35%" class="MedSmallFormText">10% Owner</td></tr><tr><td align="center"><span class="FormData">X</span></td><td class="MedSmallFormText">Officer (give title below)</td><td align="center"></td><td class="MedSmallFormText">Other (specify below)</td></tr><tr><td width="15%" align="center"></td><td width="35%" align="left" style="color: blue">CFO and COO</td><td width="15%" align="center"></td><td width="35%" align="left" style="color: blue"></td></tr></table></td></tr><tr><td valign="top"><span class="MedSmallFormText">2a. Foreign Trading Symbol
		 <br></span></td></tr><tr><td valign="top"><span class="MedSmallFormText">3. Date of Earliest Transaction
         (Month/Day/Year)</span><br><span class="FormData">07/10/2026</span></td><td valign="top" rowspan="2"><span class="MedSmallFormText">6. Individual or Joint/Group Filing (Check Applicable Line)
      </span><table border="0" width="100%"><tr><td width="15%" align="center"><span class="FormData">X</span></td><td width="85%" class="MedSmallFormText">Form filed by One Reporting Person</td></tr><tr><td width="15%" align="center"></td><td width="85%" class="MedSmallFormText">Form filed by More than One Reporting Person</td></tr></table></td></tr><tr><td valign="top" rowspan="1"><span class="MedSmallFormText">4. If Amendment, Date of Original Filed
         (Month/Day/Year)</span><br><br></td></tr></table><table width="100%" border="1" cellspacing="0" cellpadding="4"><thead><tr><th width="100%" valign="top" colspan="11" align="center" class="FormTextC"><b>Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned</b></th></tr><tr><th width="36%" valign="top" rowspan="2" align="left" class="MedSmallFormText">1. Title of Security (Instr. 
      3)
   </th><th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">2. Transaction Date
      (Month/Day/Year)</th><th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">2A. Deemed Execution Date, if any
      (Month/Day/Year)</th><th width="7%" valign="top" colspan="2" align="left" class="SmallFormText">3. Transaction Code (Instr. 
      8)
   </th><th width="19%" valign="top" colspan="3" align="left" class="SmallFormText">4. Securities Acquired (A) or Disposed Of (D) (Instr. 
      3, 4 and 5)
   </th><th width="11%" valign="top" rowspan="2" align="left" class="SmallFormText">5. 
      Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 
      3 and 4)
   </th><th width="9%" valign="top" rowspan="2" align="left" class="SmallFormText">6. Ownership Form: Direct (D) or Indirect (I) (Instr. 
      4)
   </th><th width="8%" valign="top" rowspan="2" align="left" class="SmallFormText">7. Nature of Indirect Beneficial Ownership (Instr. 
      4)
   </th></tr><tr><th width="4%" align="center" class="SmallFormText">Code</th><th width="3%" align="center" class="SmallFormText">V</th><th width="8%" align="center" class="SmallFormText">Amount</th><th width="5%" align="center" class="SmallFormText">(A) or (D)</th><th width="6%" align="center" class="SmallFormText">Price</th></tr></thead><tbody><tr><td align="left"><span class="FormData">Common Stock</span></td><td align="center"><span class="FormData">07/10/2026</span></td><td align="center"><span class="FormData"></span></td><td align="center"><span class="SmallFormData">M</span></td><td align="center"></td><td align="center"><span class="FormData">5,829</span><span class="FootnoteData"><sup>(2)</sup></span></td><td align="center"><span class="FormData">A</span></td><td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="FormData">359,185</span><span class="FootnoteData"><sup>(3)</sup></span></td><td align="center"><span class="FormData">D</span></td><td align="left"></td></tr><tr><td align="left"><span class="FormData">Common Stock</span></td><td align="center"><span class="FormData">07/10/2026</span></td><td align="center"><span class="FormData"></span></td><td align="center"><span class="SmallFormData">M</span></td><td align="center"></td><td align="center"><span class="FormData">7,050</span><span class="FootnoteData"><sup>(4)</sup></span></td><td align="center"><span class="FormData">A</span></td><td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="FormData">366,235</span><span class="FootnoteData"><sup>(3)</sup></span></td><td align="center"><span class="FormData">D</span></td><td align="left"></td></tr><tr><td align="left"><span class="FormData">Common Stock</span></td><td align="center"><span class="FormData">07/13/2026</span></td><td align="center"><span class="FormData"></span></td><td align="center"><span class="SmallFormData">S</span><span class="FootnoteData"><sup>(5)</sup></span></td><td align="center"></td><td align="center"><span class="FormData">1,453</span><span class="FootnoteData"><sup>(6)</sup></span></td><td align="center"><span class="FormData">D</span></td><td align="center"><span class="FormText">$</span><span class="FormData">71.39</span></td><td align="center"><span class="FormData">364,782</span><span class="FootnoteData"><sup>(3)</sup></span></td><td align="center"><span class="FormData">D</span></td><td align="left"></td></tr><tr><td align="left"><span class="FormData">Common Stock</span></td><td align="center"><span class="FormData">07/13/2026</span></td><td align="center"><span class="FormData"></span></td><td align="center"><span class="SmallFormData">S</span><span class="FootnoteData"><sup>(5)</sup></span></td><td align="center"></td><td align="center"><span class="FormData">18,977</span><span class="FootnoteData"><sup>(6)</sup></span></td><td align="center"><span class="FormData">D</span></td><td align="center"><span class="FormText">$</span><span class="FormData">71.52</span></td><td align="center"><span class="FormData">345,805</span><span class="FootnoteData"><sup>(3)</sup></span></td><td align="center"><span class="FormData">D</span></td><td align="left"></td></tr></tbody></table><table width="100%" border="1" cellspacing="0" cellpadding="4"><thead><tr><th width="100%" valign="top" colspan="16" align="center" class="FormTextC"><b>Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned</b><br><b>(e.g., puts, calls, warrants, options, convertible securities)</b></th></tr><tr><th width="13%" valign="top" rowspan="2" align="left" class="SmallFormText">1. Title of Derivative Security (Instr. 
      3)
   </th><th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">2. Conversion or Exercise Price of Derivative Security
   </th><th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">3. Transaction Date
      (Month/Day/Year)</th><th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">3A. Deemed Execution Date, if any
      (Month/Day/Year)</th><th width="9%" valign="top" colspan="2" align="left" class="SmallFormText">4. Transaction Code (Instr. 
      8)
   </th><th width="10%" valign="top" colspan="2" align="left" class="SmallFormText">5. 
      Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 
      3, 4 and 5)
   </th><th width="9%" valign="top" colspan="2" align="left" class="SmallFormText">6. Date Exercisable and Expiration Date 
      (Month/Day/Year)</th><th width="17%" valign="top" colspan="2" align="left" class="SmallFormText">7. Title and Amount of Securities Underlying Derivative Security (Instr. 
      3 and 4)
   </th><th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">8. Price of Derivative Security (Instr. 
      5)
   </th><th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">9. 
      Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 
      4)
   </th><th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">10. Ownership Form: Direct (D) or Indirect (I) (Instr. 
      4)
   </th><th width="7%" valign="top" rowspan="2" align="left" class="SmallFormText">11. Nature of Indirect Beneficial Ownership (Instr. 
      4)
   </th></tr><tr><th width="4%" valign="bottom" align="center" class="SmallFormText">Code</th><th width="4%" valign="bottom" align="center" class="SmallFormText">V</th><th width="5%" valign="bottom" align="center" class="SmallFormText">(A)</th><th width="5%" valign="bottom" align="center" class="SmallFormText">(D)</th><th width="5%" valign="bottom" align="center" class="SmallFormText">Date Exercisable</th><th width="4%" valign="bottom" align="center" class="SmallFormText">Expiration Date</th><th width="10%" valign="bottom" align="center" class="SmallFormText">Title</th><th width="7%" valign="bottom" align="center" class="SmallFormText">Amount or Number of Shares</th></tr></thead><tbody><tr><td align="left"><span class="SmallFormData">Performance Stock Units</span></td><td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="SmallFormData">07/10/2026</span></td><td align="center"><span class="SmallFormData"></span></td><td align="center"><span class="SmallFormData">M</span></td><td align="center"></td><td align="center"></td><td align="center"><span class="SmallFormData">5,829</span></td><td align="center"><span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="SmallFormData">Common Stock</span></td><td align="center"><span class="FormData">5,829</span></td><td align="center"><span class="SmallFormText">$</span><span class="SmallFormData">0</span></td><td align="center"><span class="SmallFormData">34,968</span></td><td align="center"><span class="SmallFormData">D</span></td><td align="left"></td></tr><tr><td align="left"><span class="SmallFormData">Performance Stock Units</span></td><td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="SmallFormData">07/10/2026</span></td><td align="center"><span class="SmallFormData"></span></td><td align="center"><span class="SmallFormData">M</span></td><td align="center"></td><td align="center"></td><td align="center"><span class="SmallFormData">7,050</span></td><td align="center"><span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span></td><td align="center"><span class="SmallFormData">Common Stock</span></td><td align="center"><span class="FormData">7,050</span></td><td align="center"><span class="SmallFormText">$</span><span class="SmallFormData">0</span></td><td align="center"><span class="SmallFormData">70,497</span></td><td align="center"><span class="SmallFormData">D</span></td><td align="left"></td></tr></tbody></table><table border="0" width="100%"><tr><td class="MedSmallFormText"><b>Explanation of Responses:</b></td></tr><tr><td class="FootnoteData">1. Performance stock units ("PSUs") convert into common stock on a one-for-one basis.</td></tr><tr><td class="FootnoteData">2. On January 11, 2024, the Reporting Person was granted 93,250 PSUs with 25% of the PSUs vesting on January 11, 2025 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 58,282 have vested as of the date of this Form 4.</td></tr><tr><td class="FootnoteData">3. Includes (i) 15,583 unvested restricted stock units ("RSUs") of the 124,667 RSUs granted to the Reporting Person on January 11, 2023, (ii) 34,968 unvested RSUs and 18,750 unvested RSUs of the 93,250 RSUs and 50,000 RSUs granted to the Reporting Person on January 11, 2024 and January 15, 2024, respectively, (iii) 70,497 unvested RSUs of the 112,797 RSUs granted to the Reporting Person on January 11, 2025, (iv) 59,320 RSUs granted to the Reporting Person on January 16, 2026, none of which have vested as of the date of this Form 4 and (v) 2,650 shares acquired under the Liquidia Corporation 2020 Employee Stock Purchase Plan ("ESPP").</td></tr><tr><td class="FootnoteData">4. On January 11, 2025, the Reporting Person was granted 112,797 PSUs with 25% of the PSUs vesting on January 11, 2026 and the remaining PSUs vesting ratably on a quarterly basis over three years thereafter. Of those PSUs, a total of 42,300 have vested as of the date of this Form 4.</td></tr><tr><td class="FootnoteData">5. Transaction effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person on December 15, 2023.</td></tr><tr><td class="FootnoteData">6. These shares of common stock were sold to cover taxes associated with the settlement of RSUs and PSUs that were initially granted to the Reporting Person on January 11, 2023, January 11, 2024, January 15, 2024 and January 11, 2025.</td></tr></table><table width="100%" border="0"><tr><td width="60%"></td><td width="20%"><u><span class="FormData">/s/ Michael Kaseta</span></u></td><td width="20%"><u><span class="FormData">07/14/2026</span></u></td></tr><tr><td></td><td class="MedSmallFormText">** Signature of Reporting Person</td><td class="MedSmallFormText">Date</td></tr><tr><td colspan="3" class="MedSmallFormText">Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.</td></tr><tr><td colspan="3" class="MedSmallFormText">* If the form is filed by more than one reporting person, 
                  <i>see</i>

                  Instruction 
                  4

                  (b)(v).</td></tr><tr><td colspan="3" class="MedSmallFormText">** Intentional misstatements or omissions of facts constitute Federal Criminal Violations 
                  <i>See</i>

                  18 U.S.C. 1001 and 15 U.S.C. 78ff(a).</td></tr><tr><td colspan="3" class="MedSmallFormText">Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, 
                  <i>see</i>

                  Instruction 6 for procedure.</td></tr><tr><td colspan="3" class="MedSmallFormText"><b>Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.</b></td></tr><tr><td colspan="3" class="MedSmallFormText"><b>* Form 4: SEC 1474 (03-26)</b></td></tr></table></body></html>
