If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

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).






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D






SCHEDULE 13D


 
Growth Equity Opportunities 18 VGE, LLC
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi, Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
NEA 18 Venture Growth Equity, L.P.
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi, Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
NEA Partners 18 VGE, L.P.
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi, Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
NEA 18 VGE GP, LLC
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Anthony A. Florence Jr., Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi, Managing Partner and Co-Chief Executive Officer
Date:02/24/2026
 
Ali Behbahani
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Ali Behbahani
Date:02/24/2026
 
Carmen Chang
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Carmen Chang
Date:02/24/2026
 
Anthony A. Florence, Jr.
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Anthony A. Florence, Jr.
Date:02/24/2026
 
Mohamad H. Makhzoumi
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Mohamad H. Makhzoumi
Date:02/24/2026
 
Edward T. Mathers
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Edward T. Mathers
Date:02/24/2026
 
Scott D. Sandell
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Scott D. Sandell
Date:02/24/2026
 
Paul Walker
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Paul Walker
Date:02/24/2026
 
Rick Yang
 
Signature:/s/ Zachary Bambach
Name/Title:Zachary Bambach as attorney-in-fact for Rick Yang
Date:02/24/2026
Comments accompanying signature:
This Amendment No. 1 to Schedule 13D was executed by Zachary Bambach on behalf of the individuals listed above pursuant to a Power of Attorney, a copy of which is attached as Exhibit 2.

 

 

EXHIBIT 1 

 

AGREEMENT

 

Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13D need be filed with respect to the ownership by each of the undersigned of shares of stock of Gossamer Bio, Inc.

 

EXECUTED this 24th day of February, 2026.

 

 

GROWTH EQUITY OPPORTUNITIES 18 VGE, LLC

 

By:

NEA 18 VENTURE GROWTH EQUITY, L.P.

Sole Member

 

By:

NEA PARTNERS 18 VGE, L.P.

General Partner

  

By:

NEA 18 VGE GP, LLC

General Partner

 

By:                             *                                

Anthony A. Florence, Jr.

Managing Partner and Co-Chief Executive Officer 

   

By:                             *                                

Mohamad H. Makhzoumi

Managing Partner and Co-Chief Executive Officer  

 

 

NEA 18 VENTURE GROWTH EQUITY, L.P.

 

By:

NEA PARTNERS 18 VGE, L.P.

General Partner

 

By:

NEA 18 VGE GP, LLC

General Partner

  

By:                             *                                

Anthony A. Florence, Jr.

Managing Partner and Co-Chief Executive Officer 

   

By:                             *                                

Mohamad H. Makhzoumi

Managing Partner and Co-Chief Executive Officer  

 

NEA PARTNERS 18 VGE, L.P.

 

By:NEA 18 VGE GP, LLC
General Partner

 

By:                             *                                

Anthony A. Florence, Jr.

Managing Partner and Co-Chief Executive Officer 

   

By:                             *                                

Mohamad H. Makhzoumi

Managing Partner and Co-Chief Executive Officer  

 

  

NEA 18 VGE GP, LLC

 

By:                             *                                

Anthony A. Florence, Jr.

Managing Partner and Co-Chief Executive Officer 

   

By:                             *                                

Mohamad H. Makhzoumi

Managing Partner and Co-Chief Executive Officer  

 

 

 

 

 

 

 

 

                 *                        

Ali Behbahani

 

 

                 *                        

Carmen Chang

 

 

                 *                        

Anthony A. Florence, Jr.

  

 

                 *                        

Mohamad H. Makhzoumi

 

 

                 *                        

Edward T. Mathers

 

 

                 *                        

Scott D. Sandell

 

 

                 *                        

Paul Walker 

  

 

                 *                        

Rick Yang

 

 

  

*/s/ Zachary Bambach           

Zachary Bambach

As attorney-in-fact

 

 

 

 

This Agreement relating to Schedule 13D was executed by Zachary Bambach on behalf of the individuals listed above pursuant to a Power of Attorney, a copy of which is attached hereto as Exhibit 2.

 

 

EXHIBIT 3

 

POWER OF ATTORNEY

 

KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Zachary Bambach, Nicole Hatcher and Stephanie Brecher, and each of them, with full power to act without the others, his or her true and lawful attorney-in-fact, with full power of substitution, to sign any and all instruments, certificates and documents that may be necessary, desirable or appropriate to be executed on behalf of himself as an individual or in his or her capacity as a direct or indirect general partner, director, officer or manager of any partnership, corporation or limited liability company, pursuant to section 13 or 16 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and any and all regulations promulgated thereunder, including, without limitation, Forms 3, 4 and 5 and Schedules 13D and 13G (and any amendments thereto), and to file the same, with all exhibits thereto, and any other documents in connection therewith, with the Securities and Exchange Commission (the “SEC”), including, but not limited to, signing a Form ID for and on behalf of the undersigned and filing such Form ID with the SEC, and with any other entity when and if such is mandated by the Exchange Act or by the Financial Industry Regulatory Authority, granting unto said attorney-in-fact full power and authority to do and perform each and every act and thing necessary, desirable or appropriate, fully to all intents and purposes as he or she might or could do in person, thereby ratifying and confirming all that said attorney-in-fact, or his or her substitutes, may lawfully do or cause to be done by virtue hereof. This power of attorney is perpetual, unless revoked by the undersigned in a signed writing delivered to each of the foregoing attorneys-in-fact.

 

IN WITNESS WHEREOF, this Power of Attorney has been signed as of the 29th day of February, 2024.

 

 

/s/ Peter J. Barris  
Peter J. Barris  
   
/s/ Forest Baskett  
Forest Baskett  
   
/s/ Ali Behbahani  
Ali Behbahani  
   
/s/ Ronald D. Bernal  
Ronald D. Bernal  
   
/s/ Ann Bordetsky  
Ann Bordetsky  
   
/s/ Carmen Chang  
Carmen Chang  
   
/s/ Philip Chopin  
Philip Chopin  
   
/s/ Anthony A. Florence, Jr.  
Anthony A. Florence, Jr.  
   
/s/ Jonathan Golden  
Jonathan Golden  
   
/s/ Scott Gottlieb  
Scott Gottlieb  
   
/s/ Mark Hawkins  
Mark Hawkins  
   
/s/ Jeffrey R. Immelt  
Jeffrey R. Immelt  
   
/s/ Aaron Jacobson  
Aaron Jacobson  
   
/s/ Patrick J. Kerins  
Patrick J. Kerins  
   
/s/ Hilarie Koplow-McAdams  
Hilarie Koplow-McAdams  
   
/s/ Vanessa Larco  
Vanessa Larco  
   
/s/ Julio C. Lopez  
Julio C. Lopez  
   
/s/ Tiffany Le  
Tiffany Le  
   
/s/ Mohamad H. Makhzoumi  
Mohamad H. Makhzoumi  
   
/s/ Edward T. Mathers  
Edward T. Mathers  
   
/s/ Gregory Papadopoulos  
Gregory Papadopoulos  
   
/s/ Kavita Patel  
Kavita Patel  
   
/s/ Scott D. Sandell  
Scott D. Sandell  
   
/s/ A. Brooke Seawell  
A. Brooke Seawell  
 
/s/ Peter Sonsini  

Peter Sonsini

 
   
/s/ Melissa Taunton  
Melissa Taunton  
   
/s/ Paul E. Walker  
Paul E. Walker  
   
/s/ Rick Yang  
Rick Yang