Key facts
- This page summarizes Yuling Luo's Form 4 filing for Alamar Biosciences, Inc. (ALMR).
- 29 reported transactions and 21 derivative rows are listed below.
- Accepted by SEC: 20 Apr 2026, 20:33.
Yuling Luo - 16 Apr 2026 Form 4 Insider Report for Alamar Biosciences, Inc. (ALMR)
- Reporting relationship
- Chief Executive Officer, Director
- Issuer ticker
- ALMR
- Reported as of
- 16 Apr 2026
- Net transaction value
- $0
- Reporting owner signature
- /s/ Timothy White, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Yuling Luo filed Form 4 for Alamar Biosciences, Inc. (ALMR) on 20 Apr 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002126941
Primary reporting owner
Luo Yuling
- Relationship
- Chief Executive Officer, Director
- Address
- C/O ALAMAR BIOSCIENCES, INC., 47071 BAYSIDE PARKWAY, FREMONT
- Signature
- /s/ Timothy White, Attorney-in-Fact
- Signature date
- 20 Apr 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ALMR
transaction
Class B Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,386,746
- Change %
- +1227%
- Price
- Shares after
- 1,499,797
- Date
- 20 Apr 2026
- Ownership
- Direct
- Footnotes
- F1
ALMR
transaction
Class B Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +364,268
- Change %
- +24%
- Price
- Shares after
- 1,864,065
- Date
- 20 Apr 2026
- Ownership
- Direct
- Footnotes
- F2
ALMR
transaction
Class B Common Stock
Other
- Transaction value
- Shares
- -1,864,065
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Footnotes
- F3
ALMR
transaction
Common Stock
Other
- Transaction value
- Shares
- +1,864,065
- Change %
- Price
- Shares after
- 1,864,065
- Date
- 20 Apr 2026
- Ownership
- Direct
- Footnotes
- F3
ALMR
transaction
Common Stock
Award
- Transaction value
- Shares
- +76,509
- Change %
- +4.1%
- Price
- $0.000000*
- Shares after
- 1,940,574
- Date
- 20 Apr 2026
- Ownership
- Direct
- Footnotes
- F4
ALMR
transaction
Class B Common Stock
Conversion of derivative security
- Transaction value
- Shares
- +1,224,152
- Change %
- Price
- Shares after
- 1,224,152
- Date
- 20 Apr 2026
- Ownership
- By Spouse
- Footnotes
- F1
ALMR
transaction
Class B Common Stock
Other
- Transaction value
- Shares
- -1,224,152
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- By Spouse
- Footnotes
- F3
ALMR
transaction
Common Stock
Other
- Transaction value
- Shares
- +1,224,152
- Change %
- Price
- Shares after
- 1,224,152
- Date
- 20 Apr 2026
- Ownership
- By Spouse
- Footnotes
- F3
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- Shares
- +341,191
- Change %
- Price
- $0.000000*
- Shares after
- 341,191
- Date
- 16 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 341,191
- Exercise price
- $17.00
- Footnotes
- F5
ALMR
transaction
Derivative
Class A Common Stock
Conversion of derivative security
- Transaction value
- Shares
- -1,020,742
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 1,020,742
- Exercise price
- Footnotes
- F1
ALMR
transaction
Derivative
Founders Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -366,004
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 366,004
- Exercise price
- Footnotes
- F1
ALMR
transaction
Derivative
Series A-1 Preferred Stock
Conversion of derivative security
- Transaction value
- Shares
- -880,802
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 364,268
- Exercise price
- Footnotes
- F2
ALMR
transaction
Derivative
Class A Common Stock
Conversion of derivative security
- Transaction value
- Shares
- -1,224,152
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- By Spouse
- Underlying class
- Class B Common Stock
- Underlying amount
- 1,224,152
- Exercise price
- Footnotes
- F1
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -266,311
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 266,311
- Exercise price
- $2.51
- Footnotes
- F3, F6
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +266,311
- Change %
- Price
- $0.000000*
- Shares after
- 266,311
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 266,311
- Exercise price
- $2.51
- Footnotes
- F3, F6
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -25,310
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 25,310
- Exercise price
- $2.51
- Footnotes
- F3, F6
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +25,310
- Change %
- Price
- $0.000000*
- Shares after
- 25,310
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 25,310
- Exercise price
- $2.51
- Footnotes
- F3, F6
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -23,986
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 23,986
- Exercise price
- $1.53
- Footnotes
- F3, F7
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +23,986
- Change %
- Price
- $0.000000*
- Shares after
- 23,986
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 23,986
- Exercise price
- $1.53
- Footnotes
- F3, F7
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -20,023
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 20,023
- Exercise price
- $1.53
- Footnotes
- F3, F6
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +20,023
- Change %
- Price
- $0.000000*
- Shares after
- 20,023
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 20,023
- Exercise price
- $1.53
- Footnotes
- F3, F6
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -27,700
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 27,700
- Exercise price
- $3.34
- Footnotes
- F3, F8
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +27,700
- Change %
- Price
- $0.000000*
- Shares after
- 27,700
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 27,700
- Exercise price
- $3.34
- Footnotes
- F3, F8
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -1,033,912
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 1,033,912
- Exercise price
- $3.34
- Footnotes
- F3, F9
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +1,033,912
- Change %
- Price
- $0.000000*
- Shares after
- 1,033,912
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,033,912
- Exercise price
- $3.34
- Footnotes
- F3, F9
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -37,086
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 37,086
- Exercise price
- $3.34
- Footnotes
- F3, F10
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- +37,086
- Change %
- Price
- $0.000000*
- Shares after
- 37,086
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 37,086
- Exercise price
- $3.34
- Footnotes
- F3, F10
ALMR
transaction
Derivative
Stock Option (Right to Buy)
Other
- Transaction value
- Shares
- -42,334
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Class B Common Stock
- Underlying amount
- 42,334
- Exercise price
- $7.60
- Footnotes
- F3, F11
ALMR
transaction
Derivative
Stock Option ((Right to Buy)
Other
- Transaction value
- Shares
- +42,334
- Change %
- Price
- $0.000000*
- Shares after
- 42,334
- Date
- 20 Apr 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 42,334
- Exercise price
- $7.60
- Footnotes
- F3, F11
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 11 footnotes
Footnote F1
The Class A Common Stock and Founders Preferred Stock are convertible into shares of Class B Common Stock on a 1:1 basis and have no expiration date. The Class A Common Stock and Founders Preferred Stock automatically converted into shares of Class B Common Stock immediately prior to the completion of the initial public offering of the Issuer's Common Stock (the "IPO").
Footnote F2
The Series A-1 Preferred Stock is convertible into shares of Class B Common Stock on a 1:2.418 basis and has no expiration date. The Series A-1 Preferred Stock automatically converted into shares of Class B Common Stock immediately prior to the completion of the IPO.
Footnote F3
Each share of Class B Common Stock was reclassified into one share of Common Stock immediately prior to the completion of the IPO.
Footnote F4
Represents the grant of restricted stock units ("RSUs"). The RSUs vest monthly from the date of grant, subject to the reporting person's continuous service as of each such vesting date.
Footnote F5
Twenty-five percent of the shares subject to the option vest on April 16, 2027, and 1/48th of the shares vest monthly thereafter, subject to the reporting person's continuous service as of each such vesting date.
Footnote F6
Fully vested.
Footnote F7
The shares subject to the option vest in equal monthly installments over 48 months measured from January 1, 2023, subject to the reporting person's continuous service as of each such vesting date.
Footnote F8
The shares subject to the option vest in equal monthly installments over 48 months measured from January 1, 2024, subject to the reporting person's continuous service as of each such vesting date.
Footnote F9
The shares subject to the option vest in equal monthly installments over 48 months measured from January 16, 2025, subject to the reporting person's continuous service as of each such vesting date.
Footnote F10
The shares subject to the option vest in equal monthly installments over 48 months measured from January 1, 2025, subject to the reporting person's continuous service as of each such vesting date.
Footnote F11
The shares subject to the option vest in equal monthly installments over 48 months measured from January 1, 2026, subject to the reporting person's continuous service as of each such vesting date.