BLLN: Atay Oguzhan discloses securities transactions

By AlphaYouPublished Sep 16, 2026Form 4

Stocks in this disclosure

Reported activity

Atay Oguzhan

Reporting filer

Atay Oguzhan reported Exercise or conversion in BillionToOne, Inc.: 16666 units of Class A Common Stock, dated 2026-09-14. The full Form 4 contains 14 transaction entries.

Disclosed: Sep 16, 2026

Reported details

14 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Class A Common Stock	Atay Oguzhan	2026-09-14	M	Exercise or conversion	16666	2.80	16,666	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 16666 transaction Price Per Share: 2.80 transaction Acquired Disposed Code: A shares Owned Following Transaction: 16666 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	M	Exercise or conversion	8333	2.80	24,999	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 8333 transaction Price Per Share: 2.80 transaction Acquired Disposed Code: A shares Owned Following Transaction: 24999 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	4465	98.6314	20,534	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 4465 transaction Price Per Share: 98.6314 id: F2 transaction Acquired Disposed Code: D shares Owned Following Transaction: 20534 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	2456	99.5713	18,078	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 2456 transaction Price Per Share: 99.5713 id: F3 transaction Acquired Disposed Code: D shares Owned Following Transaction: 18078 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	2531	100.5809	15,547	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 2531 transaction Price Per Share: 100.5809 id: F4 transaction Acquired Disposed Code: D shares Owned Following Transaction: 15547 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	7214	101.4407	8,333	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 7214 transaction Price Per Share: 101.4407 id: F5 transaction Acquired Disposed Code: D shares Owned Following Transaction: 8333 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	1680	98.6358	6,653	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 1680 transaction Price Per Share: 98.6358 id: F6 transaction Acquired Disposed Code: D shares Owned Following Transaction: 6653 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	1500	99.5683	5,153	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 1500 transaction Price Per Share: 99.5683 id: F7 transaction Acquired Disposed Code: D shares Owned Following Transaction: 5153 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	2010	100.7756	3,143	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 2010 transaction Price Per Share: 100.7756 id: F8 transaction Acquired Disposed Code: D shares Owned Following Transaction: 3143 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	3143	101.4919	0	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 3143 transaction Price Per Share: 101.4919 id: F9 transaction Acquired Disposed Code: D shares Owned Following Transaction: 0 direct Or Indirect Ownership: D
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	2666	98	159,834	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F10 transaction Shares: 2666 transaction Price Per Share: 98 transaction Acquired Disposed Code: D shares Owned Following Transaction: 159834 direct Or Indirect Ownership: I nature Of Ownership: By spouse id: F11
Class A Common Stock	Atay Oguzhan	2026-09-14	S	Sale	2666	98	157,168	2 days	Filed terms security Title: Class A Common Stock transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F10 transaction Shares: 2666 transaction Price Per Share: 98 transaction Acquired Disposed Code: D shares Owned Following Transaction: 157168 direct Or Indirect Ownership: I nature Of Ownership: By spouse id: F11
Stock Option (right to buy) (derivative)	Atay Oguzhan	2026-09-14	M	Exercise or conversion	16666	2.80	510,295	2 days	Filed terms security Title: Stock Option (right to buy) conversion Or Exercise Price: 2.80 transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 transaction Shares: 16666 transaction Price Per Share: 2.80 transaction Acquired Disposed Code: D id: F12 expiration Date: 2031-06-07 underlying Security Title: Class A Common Stock underlying Security Shares: 16666 shares Owned Following Transaction: 510295 direct Or Indirect Ownership: D
Stock Option (right to buy) (derivative)	Atay Oguzhan	2026-09-14	M	Exercise or conversion	8333	2.80	501,962	2 days	Filed terms security Title: Stock Option (right to buy) conversion Or Exercise Price: 2.80 transaction Date: 2026-09-14 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 transaction Shares: 8333 transaction Price Per Share: 2.80 transaction Acquired Disposed Code: D id: F12 expiration Date: 2031-06-07 underlying Security Title: Class A Common Stock underlying Security Shares: 8333 shares Owned Following Transaction: 501962 direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: M
Action: Exercise or conversion
Quantity: 16666
Price: 2.80
Following holdings: 16,666
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 16666
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 16666
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: M
Action: Exercise or conversion
Quantity: 8333
Price: 2.80
Following holdings: 24,999
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 8333
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 24999
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 4465
Price: 98.6314
Following holdings: 20,534
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 4465
transaction Price Per Share: 98.6314
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 20534
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 2456
Price: 99.5713
Following holdings: 18,078
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2456
transaction Price Per Share: 99.5713
id: F3
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 18078
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 2531
Price: 100.5809
Following holdings: 15,547
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2531
transaction Price Per Share: 100.5809
id: F4
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 15547
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 7214
Price: 101.4407
Following holdings: 8,333
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 7214
transaction Price Per Share: 101.4407
id: F5
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 8333
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 1680
Price: 98.6358
Following holdings: 6,653
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 1680
transaction Price Per Share: 98.6358
id: F6
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 6653
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 1500
Price: 99.5683
Following holdings: 5,153
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 1500
transaction Price Per Share: 99.5683
id: F7
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 5153
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 2010
Price: 100.7756
Following holdings: 3,143
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2010
transaction Price Per Share: 100.7756
id: F8
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 3143
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 3143
Price: 101.4919
Following holdings: 0
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 3143
transaction Price Per Share: 101.4919
id: F9
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 2666
Price: 98
Following holdings: 159,834
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F10
transaction Shares: 2666
transaction Price Per Share: 98
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 159834
direct Or Indirect Ownership: I
nature Of Ownership: By spouse
id: F11

Class A Common Stock

Owner: Atay Oguzhan
Date: 2026-09-14
Code: S
Action: Sale
Quantity: 2666
Price: 98
Following holdings: 157,168
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F10
transaction Shares: 2666
transaction Price Per Share: 98
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 157168
direct Or Indirect Ownership: I
nature Of Ownership: By spouse
id: F11

Stock Option (right to buy) (derivative)

Owner: Atay Oguzhan
Date: 2026-09-14
Code: M
Action: Exercise or conversion
Quantity: 16666
Price: 2.80
Following holdings: 510,295
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Stock Option (right to buy)
conversion Or Exercise Price: 2.80
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 16666
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: D
id: F12
expiration Date: 2031-06-07
underlying Security Title: Class A Common Stock
underlying Security Shares: 16666
shares Owned Following Transaction: 510295
direct Or Indirect Ownership: D

Stock Option (right to buy) (derivative)

Owner: Atay Oguzhan
Date: 2026-09-14
Code: M
Action: Exercise or conversion
Quantity: 8333
Price: 2.80
Following holdings: 501,962
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Stock Option (right to buy)
conversion Or Exercise Price: 2.80
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 8333
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: D
id: F12
expiration Date: 2031-06-07
underlying Security Title: Class A Common Stock
underlying Security Shares: 8333
shares Owned Following Transaction: 501962
direct Or Indirect Ownership: D

Purchases, sales, grants and option exercises are different transactions. The reported code identifies the action; it does not establish a motive.

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.
Atay Oguzhan: Chairman and CEO, Director.
The filing reports a Rule 10b5-1 trading plan.
F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.
F2: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.060 to $99.055 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.060 to $100.055 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.060 to $101.040 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F5: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.085 to $101.805 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F6: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.140 to $99.010 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F7: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.160 to $100.130 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F8: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.230 to $101.200 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F9: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.250 to $101.820 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F10: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's spouse on June 7, 2026.
F11: Represents shares held by the Reporting Person's spouse.
F12: The options are fully vested and exercisable.

Original sources

SEC ownership filing

Prepared automatically from public filing data. Report a correction.

Security

Owner

Date

Code

Action

Quantity

Price

Following holdings

Reporting delay

Filed terms and references

Class A Common Stock

Atay Oguzhan

2026-09-14

Exercise or conversion

16666

2.80

16,666

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 16666
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 16666
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Exercise or conversion

8333

2.80

24,999

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 8333
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 24999
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

4465

98.6314

20,534

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 4465
transaction Price Per Share: 98.6314
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 20534
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

2456

99.5713

18,078

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2456
transaction Price Per Share: 99.5713
id: F3
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 18078
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

2531

100.5809

15,547

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2531
transaction Price Per Share: 100.5809
id: F4
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 15547
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

7214

101.4407

8,333

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 7214
transaction Price Per Share: 101.4407
id: F5
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 8333
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

1680

98.6358

6,653

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 1680
transaction Price Per Share: 98.6358
id: F6
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 6653
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

1500

99.5683

5,153

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 1500
transaction Price Per Share: 99.5683
id: F7
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 5153
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

2010

100.7756

3,143

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 2010
transaction Price Per Share: 100.7756
id: F8
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 3143
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

3143

101.4919

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 3143
transaction Price Per Share: 101.4919
id: F9
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 0
direct Or Indirect Ownership: D

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

2666

159,834

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F10
transaction Shares: 2666
transaction Price Per Share: 98
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 159834
direct Or Indirect Ownership: I
nature Of Ownership: By spouse
id: F11

Class A Common Stock

Atay Oguzhan

2026-09-14

Sale

2666

157,168

2 days

Filed terms

security Title: Class A Common Stock
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F10
transaction Shares: 2666
transaction Price Per Share: 98
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 157168
direct Or Indirect Ownership: I
nature Of Ownership: By spouse
id: F11

Stock Option (right to buy) (derivative)

Atay Oguzhan

2026-09-14

Exercise or conversion

16666

2.80

510,295

2 days

Filed terms

security Title: Stock Option (right to buy)
conversion Or Exercise Price: 2.80
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 16666
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: D
id: F12
expiration Date: 2031-06-07
underlying Security Title: Class A Common Stock
underlying Security Shares: 16666
shares Owned Following Transaction: 510295
direct Or Indirect Ownership: D

Stock Option (right to buy) (derivative)

Atay Oguzhan

2026-09-14

Exercise or conversion

8333

2.80

501,962

2 days

Filed terms

security Title: Stock Option (right to buy)
conversion Or Exercise Price: 2.80
transaction Date: 2026-09-14
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
transaction Shares: 8333
transaction Price Per Share: 2.80
transaction Acquired Disposed Code: D
id: F12
expiration Date: 2031-06-07
underlying Security Title: Class A Common Stock
underlying Security Shares: 8333
shares Owned Following Transaction: 501962
direct Or Indirect Ownership: D

Filing context

Quantities and prices are shown in the units filed. No trade value is inferred from their product.

Atay Oguzhan: Chairman and CEO, Director.

The filing reports a Rule 10b5-1 trading plan.

F1: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 5, 2026.

F2: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.060 to $99.055 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.060 to $100.055 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F4: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.060 to $101.040 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F5: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.085 to $101.805 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F6: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.140 to $99.010 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F7: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.160 to $100.130 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F8: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.230 to $101.200 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F9: The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.250 to $101.820 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F10: The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person's spouse on June 7, 2026.

F11: Represents shares held by the Reporting Person's spouse.

F12: The options are fully vested and exercisable.