ANRO: Smith Nicholas Conrad discloses securities transactions

By AlphaYouPublished Oct 2, 2026Form 4

Stocks in this disclosure

Reported activity

Smith Nicholas Conrad

Reporting filer

Smith Nicholas Conrad reported Exercise or conversion in Alto Neuroscience, Inc.: 56455 units of Common Stock, dated 2026-09-29. The full Form 4 contains 9 transaction entries.

Disclosed: Oct 2, 2026

Reported details

9 entries

All validated entries in this disclosure
Security	Owner	Date	Code	Action	Quantity	Price	Following holdings	Reporting delay	Filed terms and references
Common Stock	Smith Nicholas Conrad	2026-09-29	M	Exercise or conversion	56455	2.35	80,515	3 days	Filed terms security Title: Common Stock transaction Date: 2026-09-29 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 56455 transaction Price Per Share: 2.35 transaction Acquired Disposed Code: A shares Owned Following Transaction: 80515 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	Smith Nicholas Conrad	2026-09-29	M	Exercise or conversion	54375	2.35	134,890	3 days	Filed terms security Title: Common Stock transaction Date: 2026-09-29 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 54375 transaction Price Per Share: 2.35 transaction Acquired Disposed Code: A shares Owned Following Transaction: 134890 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	Smith Nicholas Conrad	2026-09-29	S	Sale	110830	26.5826	24,060	3 days	Filed terms security Title: Common Stock transaction Date: 2026-09-29 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 110830 transaction Price Per Share: 26.5826 id: F2 transaction Acquired Disposed Code: D shares Owned Following Transaction: 24060 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	Smith Nicholas Conrad	2026-09-30	M	Exercise or conversion	24056	2.35	48,116	2 days	Filed terms security Title: Common Stock transaction Date: 2026-09-30 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 24056 transaction Price Per Share: 2.35 transaction Acquired Disposed Code: A shares Owned Following Transaction: 48116 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	Smith Nicholas Conrad	2026-09-30	S	Sale	23170	25.7786	24,946	2 days	Filed terms security Title: Common Stock transaction Date: 2026-09-30 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 23170 transaction Price Per Share: 25.7786 transaction Acquired Disposed Code: D shares Owned Following Transaction: 24946 direct Or Indirect Ownership: D nature Of Ownership:
Common Stock	Smith Nicholas Conrad	2026-09-30	S	Sale	886	26.87	24,060	2 days	Filed terms security Title: Common Stock transaction Date: 2026-09-30 transaction Form Type: 4 transaction Code: S equity Swap Involved: 0 id: F1 transaction Shares: 886 transaction Price Per Share: 26.87 transaction Acquired Disposed Code: D shares Owned Following Transaction: 24060 direct Or Indirect Ownership: D nature Of Ownership:
Employee Stock Option (Right to Buy) (derivative)	Smith Nicholas Conrad	2026-09-29	M	Exercise or conversion	56455	0	145,874	3 days	Filed terms security Title: Employee Stock Option (Right to Buy) conversion Or Exercise Price: 2.35 transaction Date: 2026-09-29 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 56455 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F3 expiration Date: 2033-12-19 underlying Security Title: Common Stock underlying Security Shares: 56455 shares Owned Following Transaction: 145874 direct Or Indirect Ownership: D
Employee Stock Option (Right to Buy) (derivative)	Smith Nicholas Conrad	2026-09-29	M	Exercise or conversion	54375	0	35,625	3 days	Filed terms security Title: Employee Stock Option (Right to Buy) conversion Or Exercise Price: 2.35 transaction Date: 2026-09-29 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 54375 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F4 expiration Date: 2034-02-28 underlying Security Title: Common Stock underlying Security Shares: 54375 shares Owned Following Transaction: 35625 direct Or Indirect Ownership: D
Employee Stock Option (Right to Buy) (derivative)	Smith Nicholas Conrad	2026-09-30	M	Exercise or conversion	24056	0	121,818	2 days	Filed terms security Title: Employee Stock Option (Right to Buy) conversion Or Exercise Price: 2.35 transaction Date: 2026-09-30 transaction Form Type: 4 transaction Code: M equity Swap Involved: 0 id: F1 transaction Shares: 24056 transaction Price Per Share: 0 transaction Acquired Disposed Code: D id: F3 expiration Date: 2033-12-19 underlying Security Title: Common Stock underlying Security Shares: 24056 shares Owned Following Transaction: 121818 direct Or Indirect Ownership: D

Common Stock

Owner: Smith Nicholas Conrad
Date: 2026-09-29
Code: M
Action: Exercise or conversion
Quantity: 56455
Price: 2.35
Following holdings: 80,515
Reporting delay: 3 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 56455
transaction Price Per Share: 2.35
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 80515
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: Smith Nicholas Conrad
Date: 2026-09-29
Code: M
Action: Exercise or conversion
Quantity: 54375
Price: 2.35
Following holdings: 134,890
Reporting delay: 3 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 54375
transaction Price Per Share: 2.35
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 134890
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: Smith Nicholas Conrad
Date: 2026-09-29
Code: S
Action: Sale
Quantity: 110830
Price: 26.5826
Following holdings: 24,060
Reporting delay: 3 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 110830
transaction Price Per Share: 26.5826
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 24060
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: Smith Nicholas Conrad
Date: 2026-09-30
Code: M
Action: Exercise or conversion
Quantity: 24056
Price: 2.35
Following holdings: 48,116
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 24056
transaction Price Per Share: 2.35
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 48116
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: Smith Nicholas Conrad
Date: 2026-09-30
Code: S
Action: Sale
Quantity: 23170
Price: 25.7786
Following holdings: 24,946
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 23170
transaction Price Per Share: 25.7786
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 24946
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Owner: Smith Nicholas Conrad
Date: 2026-09-30
Code: S
Action: Sale
Quantity: 886
Price: 26.87
Following holdings: 24,060
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Common Stock
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 886
transaction Price Per Share: 26.87
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 24060
direct Or Indirect Ownership: D
nature Of Ownership:

Employee Stock Option (Right to Buy) (derivative)

Owner: Smith Nicholas Conrad
Date: 2026-09-29
Code: M
Action: Exercise or conversion
Quantity: 56455
Price: 0
Following holdings: 145,874
Reporting delay: 3 days
Filed terms and references: Filed terms
security Title: Employee Stock Option (Right to Buy)
conversion Or Exercise Price: 2.35
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 56455
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F3
expiration Date: 2033-12-19
underlying Security Title: Common Stock
underlying Security Shares: 56455
shares Owned Following Transaction: 145874
direct Or Indirect Ownership: D

Employee Stock Option (Right to Buy) (derivative)

Owner: Smith Nicholas Conrad
Date: 2026-09-29
Code: M
Action: Exercise or conversion
Quantity: 54375
Price: 0
Following holdings: 35,625
Reporting delay: 3 days
Filed terms and references: Filed terms
security Title: Employee Stock Option (Right to Buy)
conversion Or Exercise Price: 2.35
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 54375
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
expiration Date: 2034-02-28
underlying Security Title: Common Stock
underlying Security Shares: 54375
shares Owned Following Transaction: 35625
direct Or Indirect Ownership: D

Employee Stock Option (Right to Buy) (derivative)

Owner: Smith Nicholas Conrad
Date: 2026-09-30
Code: M
Action: Exercise or conversion
Quantity: 24056
Price: 0
Following holdings: 121,818
Reporting delay: 2 days
Filed terms and references: Filed terms
security Title: Employee Stock Option (Right to Buy)
conversion Or Exercise Price: 2.35
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 24056
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F3
expiration Date: 2033-12-19
underlying Security Title: Common Stock
underlying Security Shares: 24056
shares Owned Following Transaction: 121818
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.
Smith Nicholas Conrad: PRESIDENT AND CFO.
The filing reports a Rule 10b5-1 trading plan.
F1: This transaction was pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 30, 2026.
F2: This price is a weighted average price. These securities were sold in multiple transactions at prices ranging from $26.5513 to $26.5902 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.
F3: One-third (1/3rd) of the shares underlying the option vested upon the completion of the Issuer's initial public offering and two-thirds (2/3) of the shares underlying the option vested or shall vest over a period of four years. 25% of the shares underlying the time-based portion vested on December 20, 2024, and 1/48 of the shares underlying the time-based portion vested or shall vest on a monthly basis thereafter, subject to the Reporting Person's continuous service through such vesting date.
F4: 25% of the shares underlying the option vested on March 1, 2025, and one forty-eighth (1/48th) of the shares underlying the option vested or shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date.

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

Common Stock

Smith Nicholas Conrad

2026-09-29

Exercise or conversion

56455

2.35

80,515

3 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 56455
transaction Price Per Share: 2.35
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 80515
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Smith Nicholas Conrad

2026-09-29

Exercise or conversion

54375

2.35

134,890

3 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 54375
transaction Price Per Share: 2.35
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 134890
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Smith Nicholas Conrad

2026-09-29

Sale

110830

26.5826

24,060

3 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 110830
transaction Price Per Share: 26.5826
id: F2
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 24060
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Smith Nicholas Conrad

2026-09-30

Exercise or conversion

24056

2.35

48,116

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 24056
transaction Price Per Share: 2.35
transaction Acquired Disposed Code: A
shares Owned Following Transaction: 48116
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Smith Nicholas Conrad

2026-09-30

Sale

23170

25.7786

24,946

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 23170
transaction Price Per Share: 25.7786
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 24946
direct Or Indirect Ownership: D
nature Of Ownership:

Common Stock

Smith Nicholas Conrad

2026-09-30

Sale

886

26.87

24,060

2 days

Filed terms

security Title: Common Stock
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: S
equity Swap Involved: 0
id: F1
transaction Shares: 886
transaction Price Per Share: 26.87
transaction Acquired Disposed Code: D
shares Owned Following Transaction: 24060
direct Or Indirect Ownership: D
nature Of Ownership:

Employee Stock Option (Right to Buy) (derivative)

Smith Nicholas Conrad

2026-09-29

Exercise or conversion

56455

145,874

3 days

Filed terms

security Title: Employee Stock Option (Right to Buy)
conversion Or Exercise Price: 2.35
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 56455
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F3
expiration Date: 2033-12-19
underlying Security Title: Common Stock
underlying Security Shares: 56455
shares Owned Following Transaction: 145874
direct Or Indirect Ownership: D

Employee Stock Option (Right to Buy) (derivative)

Smith Nicholas Conrad

2026-09-29

Exercise or conversion

54375

35,625

3 days

Filed terms

security Title: Employee Stock Option (Right to Buy)
conversion Or Exercise Price: 2.35
transaction Date: 2026-09-29
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 54375
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F4
expiration Date: 2034-02-28
underlying Security Title: Common Stock
underlying Security Shares: 54375
shares Owned Following Transaction: 35625
direct Or Indirect Ownership: D

Employee Stock Option (Right to Buy) (derivative)

Smith Nicholas Conrad

2026-09-30

Exercise or conversion

24056

121,818

2 days

Filed terms

security Title: Employee Stock Option (Right to Buy)
conversion Or Exercise Price: 2.35
transaction Date: 2026-09-30
transaction Form Type: 4
transaction Code: M
equity Swap Involved: 0
id: F1
transaction Shares: 24056
transaction Price Per Share: 0
transaction Acquired Disposed Code: D
id: F3
expiration Date: 2033-12-19
underlying Security Title: Common Stock
underlying Security Shares: 24056
shares Owned Following Transaction: 121818
direct Or Indirect Ownership: D

Filing context

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

Smith Nicholas Conrad: PRESIDENT AND CFO.

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

F1: This transaction was pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 30, 2026.

F2: This price is a weighted average price. These securities were sold in multiple transactions at prices ranging from $26.5513 to $26.5902 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of securities sold at each separate price within the range set forth in this footnote.

F3: One-third (1/3rd) of the shares underlying the option vested upon the completion of the Issuer's initial public offering and two-thirds (2/3) of the shares underlying the option vested or shall vest over a period of four years. 25% of the shares underlying the time-based portion vested on December 20, 2024, and 1/48 of the shares underlying the time-based portion vested or shall vest on a monthly basis thereafter, subject to the Reporting Person's continuous service through such vesting date.

F4: 25% of the shares underlying the option vested on March 1, 2025, and one forty-eighth (1/48th) of the shares underlying the option vested or shall vest in monthly installments thereafter, subject to the Reporting Person's continuous service through each such vesting date.