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†† We  expect  that  our  seven  co-founders,  including  Dr.  Amodei  and  Ms.  Amodei,  will  enter  into  the  Founder  LLC  Agreement  shortly  before  the  effectiveness  of  the  registration 
statement of which this prospectus forms a part. The Founder LLC Agreement will provide that the share of Class F common stock will be voted, consented or not consented, in the 
manner determined by a vote of the Continuing Founders as prescribed by the Founder LLC Agreement, with each Continuing Founder entitled to one vote. With respect to each 
of our co-founders, the voting power percentage provided does not include the voting power of our Class F common stock held by the Founder LLC. The Founder LLC Agreement 
will not govern the voting of any shares of our Class A common stock held by the co-founders or their related holders. Each co-founder (or their related holders) will be able to vote 
shares  of  our  Class  A  common  stock  held  by  them  in  their  discretion,  regardless  of  the  manner  in  which  the  Founder  LLC  will  vote  our  Class  F  common  stock.  For  more 
information,  please  see  the  sections  titled  “Our  Governance  Structure  and  Its  Goals—Founder  Voting  Structure,”  “—Our  Co-Founders,”  and  “Description  of  Capital  Stock—
Common Stock—Voting Rights.”

(1) Consists of (i) 237,813,080 shares of Class A common stock held of record by Dr. Amodei or by trusts over which Dr. Amodei exercises investment or voting control, (ii) 2,185,400 
shares  of  Class  A  common  stock  subject  to  stock  options  exercisable  within  60  days  of  September  30,  2026,  and  (iii)  639,500  shares  of  Class  A  common  stock  issuable  upon 
settlement of RSUs for which the service-based vesting condition will be satisfied within 60 days of September 30, 2026. Dr. Amodei is also a member of the Founder LLC. For 
more information, see the sections titled “Our Governance Structure and Its Goals—Founder Voting Structure” and “—Our Co-Founders.”

(2) Dr. Amodei has entered into the Voting Proxy Agreements with the DAFs (as further described elsewhere in this prospectus), pursuant to which Dr. Amodei has the authority (and 

irrevocable proxy) to direct the vote and vote certain shares of Class A common stock held by the DAFs, at his discretion on all matters to be voted upon by stockholders. 

(3) Consists of (i) 238,319,540 shares of Class A common stock held of record by Ms. Amodei or by trusts over which Ms. Amodei exercises investment or voting control, (ii) 2,185,400 
shares of Class A common stock subject to stock options exercisable within 60 days of September 30, 2026, (iii) 130,550 shares of Class A common stock subject to stock options 
exercisable within 60 days of September 30, 2026 held by Ms. Amodei’s spouse, (iv) 639,500 shares of Class A common stock issuable upon settlement of RSUs for which the 
service-based vesting condition will be satisfied within 60 days of September 30, 2026, and (v) 133,950 shares of Class A common stock issuable upon settlement of RSUs for 
which the service-based vesting condition will be satisfied within 60 days of September 30, 2026 held by Ms. Amodei’s spouse. Ms. Amodei is also a member of the Founder LLC. 
For more information, see the sections titled “Our Governance Structure and Its Goals—Founder Voting Structure” and “—Our Co-Founders.”

(4) Consists of (i) 153,960 shares of Class A common stock held of record by Mr. Rao, (ii) 7,843,940 shares of Class A common stock subject to stock options exercisable within 60 
days of September 30, 2026, and (iii) 1,500,000 shares of Class A common stock subject to stock options exercisable by a trust over which Mr. Rao exercises investment or voting 
control within 60 days of September 30, 2026.

(5) Consists of 9,410 shares of Class A common stock issuable upon settlement of RSUs for which the service-based vesting condition will be satisfied within 60 days of September 30, 

2026.

(6) Consists of 9,410 shares of Class A common stock issuable upon settlement of RSUs for which the service-based vesting condition will be satisfied within 60 days of September 30, 

2026.

(7) Consists of (i) 169,770 shares of Class A common stock held of record by Bodhi LLC over which Dr. Narasimhan exercises sole investment and voting control and (ii) 6,280 shares 

of Class A common stock issuable upon settlement of RSUs for which the service-based vesting condition will be satisfied within 60 days of September 30, 2026.

(8) Excludes shares of Class A common stock held by any affiliates of Spark Capital (each, a “Spark Capital Entity”). Spark Capital Growth Fund IV, L.P. and Spark Capital Growth 
Founders’ Fund IV, L.P. are controlled by their general partner, Spark Growth Management Partners IV, LLC, which is governed by five managing members including Yasmin 
Razavi, who is one of our directors. Spark Capital Growth Fund V, L.P. and Spark Capital Growth Founders’ Fund V, L.P. are controlled by their general partner, Spark Growth 
Management  Partners  V,  LLC,  which  is  governed  by  its  five  managing  members,  including  Ms.  Razavi,  who  is  one  of  our  directors. Spark  Capital  Growth  Fund  VI,  L.P.  is 
controlled by its general partner, Spark Growth Management Partners VI, LLC, which is governed by its six managing members, including Ms. Razavi, who is one of our directors. 
The members of Spark Capital Growth Fund Holdings 2026, LLC are Spark Capital Growth Fund IV, L.P., Spark Capital Growth Founders’ Fund IV, L.P., Spark Capital Growth 
Fund V, L.P., Spark Capital Growth Founders’ Fund V, L.P. and Spark Capital Growth Fund VI, L.P. The managing members of each general partner make investment and voting 
decisions based on a majority vote. To the extent Ms. Razavi may be deemed to have beneficial ownership over the shares beneficially owned by any Spark Capital Entity, she 
expressly disclaims such beneficial ownership. The business address of each of the foregoing persons is 200 Clarendon Street, Floor 59, Boston, Massachusetts 02116.

(9) Consists of (i) 481,077,470 shares of Class A common stock beneficially owned by our executive officers and directors, (ii) 13,845,290 shares of Class A common stock subject to 
stock options exercisable within 60 days of September 30, 2026, and (iii) 1,438,050 shares of Class A common stock issuable upon settlement of RSUs for which the service-based 
vesting condition will be satisfied within 60 days of September 30, 2026.

(10) Consists of one share of Class T common stock held of record by the LTBT.

(11) Consists of one share of Class F common stock held of record by the Founder LLC.

(12) Consists of (i) 241,348,140 shares of Class A common stock held of record by Mr. Brown or by trusts over which Mr. Brown exercises investment or voting control, (ii) 2,185,400 
shares  of  Class  A  common  stock  subject  to  stock  options  exercisable  within  60  days  of  September  30,  2026,  and  (iii)  639,500  shares  of  Class  A  common  stock  issuable  upon 

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