STOCK TITAN

Alamar Biosciences (ALMR) CEO revamps equity stake with IPO conversions

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Alamar Biosciences CEO Yuling Luo reported a series of equity restructurings and awards around the company’s initial public offering. Several classes of preferred and Class A shares automatically converted into Class B Common Stock and were then reclassified into Common Stock immediately before the IPO, with no cash changing hands.

The filing also shows a grant of 76,509 restricted stock units that vest monthly, and a new stock option for 341,191 shares of Common Stock at an exercise price of $17.00 per share, vesting over four years. Many option entries reflect technical reclassifications between Class B Common Stock and Common Stock rather than market trades.

Positive

  • None.

Negative

  • None.
Insider Luo Yuling
Role Chief Executive Officer
Type Security Shares Price Value
Conversion Class A Common Stock 1,020,742 $0.00 --
Conversion Founders Preferred Stock 366,004 $0.00 --
Conversion Series A-1 Preferred Stock 880,802 $0.00 --
Conversion Class A Common Stock 1,224,152 $0.00 --
Other Stock Option (Right to Buy) 266,311 $0.00 --
Other Stock Option (Right to Buy) 266,311 $0.00 --
Other Stock Option (Right to Buy) 25,310 $0.00 --
Other Stock Option (Right to Buy) 25,310 $0.00 --
Other Stock Option (Right to Buy) 23,986 $0.00 --
Other Stock Option (Right to Buy) 23,986 $0.00 --
Other Stock Option (Right to Buy) 20,023 $0.00 --
Other Stock Option (Right to Buy) 20,023 $0.00 --
Other Stock Option (Right to Buy) 27,700 $0.00 --
Other Stock Option (Right to Buy) 27,700 $0.00 --
Other Stock Option (Right to Buy) 1,033,912 $0.00 --
Other Stock Option (Right to Buy) 1,033,912 $0.00 --
Other Stock Option (Right to Buy) 37,086 $0.00 --
Other Stock Option (Right to Buy) 37,086 $0.00 --
Other Stock Option (Right to Buy) 42,334 $0.00 --
Other Stock Option ((Right to Buy) 42,334 $0.00 --
Conversion Class B Common Stock 1,386,746 $0.00 --
Conversion Class B Common Stock 364,268 $0.00 --
Other Class B Common Stock 1,864,065 $0.00 --
Other Common Stock 1,864,065 $0.00 --
Grant/Award Common Stock 76,509 $0.00 --
Conversion Class B Common Stock 1,224,152 $0.00 --
Other Class B Common Stock 1,224,152 $0.00 --
Other Common Stock 1,224,152 $0.00 --
Grant/Award Stock Option (Right to Buy) 341,191 $0.00 --
Holdings After Transaction: Class A Common Stock — 0 shares (Direct, null); Founders Preferred Stock — 0 shares (Direct, null); Series A-1 Preferred Stock — 0 shares (Direct, null); Class A Common Stock — 0 shares (Indirect, By Spouse); Stock Option (Right to Buy) — 0 shares (Direct, null); Stock Option ((Right to Buy) — 42,334 shares (Direct, null); Class B Common Stock — 1,499,797 shares (Direct, null); Common Stock — 1,864,065 shares (Direct, null); Class B Common Stock — 1,224,152 shares (Indirect, By Spouse); Common Stock — 1,224,152 shares (Indirect, By Spouse)
Footnotes (1)
  1. 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"). 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. Each share of Class B Common Stock was reclassified into one share of Common Stock immediately prior to the completion of the IPO. 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. 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. Fully vested. 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. 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. 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. 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. 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.
RSU grant 76,509 shares Restricted stock units vesting monthly from grant date
New option grant 341,191 shares at $17.00 Stock option exercise price per share, expires on 2036-04-15
Exercise/Conversion volume 3,491,700 shares Total derivative conversion/exercise shares in this filing
Restructuring volume 9,129,758 shares Shares affected by J-code restructuring transactions
Preferred conversion ratio 1:1 Class A and Founders Preferred into Class B Common Stock
Series A-1 conversion ratio 1:2.418 Series A-1 Preferred into Class B Common Stock
Class B to Common 1:1 Each Class B Common Stock reclassified into one Common share
restricted stock units ("RSUs") financial
"Represents the grant of restricted stock units ("RSUs"). The RSUs vest monthly"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Class B Common Stock financial
"Each share of Class B Common Stock was reclassified into one share of Common Stock"
A class B common stock is one of multiple types of a company’s ordinary shares that carries specific rights—often different voting power or dividend priority—compared with other classes. For investors it matters because those differences affect how much influence you have over company decisions, the income you might receive, and how freely the shares trade; think of it like owning a car with different keys: some keys let you start the engine and open the trunk, others only unlock the door.
Founders Preferred Stock financial
"The Class A Common Stock and Founders Preferred Stock are convertible into shares of Class B Common Stock"
Series A-1 Preferred Stock financial
"The Series A-1 Preferred Stock is convertible into shares of Class B Common Stock on a 1:2.418 basis"
Series A-1 preferred stock is a specific class of company shares created in an early financing round that typically gives its holders priority over common shareholders for dividends and money if the company is sold or liquidates. Think of it as a special ticket with upfront privileges — often convertible into ordinary shares and sometimes carrying voting or protective rights — so investors use it to reduce risk and preserve control compared with ordinary stock.
initial public offering financial
"immediately prior to the completion of the initial public offering of the Issuer's Common Stock"
An initial public offering (IPO) is when a private company first sells its shares to the public and becomes a stock-listed company. It matters because it allows the company to raise money from a wide range of investors, helping it grow, while giving early shareholders a way to sell some of their ownership.
Stock Option (Right to Buy) financial
"Stock Option (Right to Buy) ... the option vest in equal monthly installments over 48 months"
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Luo Yuling

(Last)(First)(Middle)
C/O ALAMAR BIOSCIENCES, INC.
47071 BAYSIDE PARKWAY

(Street)
FREMONT CALIFORNIA 94538

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Alamar Biosciences, Inc. [ ALMR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/16/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class B Common Stock04/20/2026C(1)1,386,746A(1)1,499,797D
Class B Common Stock04/20/2026C(2)364,268A(2)1,864,065D
Class B Common Stock04/20/2026J(3)1,864,065D(3)0D
Common Stock04/20/2026J(3)1,864,065A(3)1,864,065D
Common Stock04/20/2026A(4)76,509A$01,940,574D
Class B Common Stock04/20/2026C(1)1,224,152A(1)1,224,152IBy Spouse
Class B Common Stock04/20/2026J(3)1,224,152D(3)0IBy Spouse
Common Stock04/20/2026J(3)1,224,152A(3)1,224,152IBy Spouse
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$1704/16/2026A341,191 (5)04/15/2036Common Stock341,191$0341,191D
Class A Common Stock(1)04/20/2026C1,020,742 (1) (1)Class B Common Stock1,020,742$00D
Founders Preferred Stock(1)04/20/2026C366,004 (1) (1)Class B Common Stock366,004$00D
Series A-1 Preferred Stock(2)04/20/2026C880,802 (2) (2)Class B Common Stock364,268$00D
Class A Common Stock(1)04/20/2026C1,224,152 (1) (1)Class B Common Stock1,224,152$00IBy Spouse
Stock Option (Right to Buy)$2.5104/20/2026J(3)266,311 (6)02/15/2027Class B Common Stock266,311$00D
Stock Option (Right to Buy)$2.5104/20/2026J(3)266,311 (6)02/15/2027Common Stock266,311$0266,311D
Stock Option (Right to Buy)$2.5104/20/2026J(3)25,310 (6)02/15/2027Class B Common Stock25,310$00D
Stock Option (Right to Buy)$2.5104/20/2026J(3)25,310 (6)02/15/2027Common Stock25,310$025,310D
Stock Option (Right to Buy)$1.5304/20/2026J(3)23,986 (7)01/17/2033Class B Common Stock23,986$00D
Stock Option (Right to Buy)$1.5304/20/2026J(3)23,986 (7)01/17/2033Common Stock23,986$023,986D
Stock Option (Right to Buy)$1.5304/20/2026J(3)20,023 (6)04/24/2033Class B Common Stock20,023$00D
Stock Option (Right to Buy)$1.5304/20/2026J(3)20,023 (6)04/24/2033Common Stock20,023$020,023D
Stock Option (Right to Buy)$3.3404/20/2026J(3)27,700 (8)04/16/2034Class B Common Stock27,700$00D
Stock Option (Right to Buy)$3.3404/20/2026J(3)27,700 (8)04/16/2034Common Stock27,700$027,700D
Stock Option (Right to Buy)$3.3404/20/2026J(3)1,033,912 (9)01/15/2035Class B Common Stock1,033,912$00D
Stock Option (Right to Buy)$3.3404/20/2026J(3)1,033,912 (9)01/15/2035Common Stock1,033,912$01,033,912D
Stock Option (Right to Buy)$3.3404/20/2026J(3)37,086 (10)01/15/2035Class B Common Stock37,086$00D
Stock Option (Right to Buy)$3.3404/20/2026J(3)37,086 (10)01/15/2035Common Stock37,086$037,086D
Stock Option (Right to Buy)$7.604/20/2026J(3)42,334 (11)01/14/2036Class B Common Stock42,334$00D
Stock Option ((Right to Buy)$7.604/20/2026J(3)42,334 (11)01/14/2036Common Stock42,334$042,334D
Explanation of Responses:
1. 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").
2. 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.
3. Each share of Class B Common Stock was reclassified into one share of Common Stock immediately prior to the completion of the IPO.
4. 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.
5. 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.
6. Fully vested.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
/s/ Timothy White, Attorney-in-Fact04/20/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider activity did Alamar Biosciences (ALMR) report for CEO Yuling Luo?

Yuling Luo reported mainly equity restructurings and grants. The filing shows conversions of preferred and Class A shares into Class B, then into Common Stock, plus new RSU and stock option awards, with no open-market share purchases or sales disclosed.

Did the Alamar Biosciences (ALMR) CEO buy or sell shares on the market?

The filing does not show open-market buys or sells. Transactions are coded as conversions (C), grants (A), or other restructurings (J), reflecting automatic IPO-related conversions and equity awards rather than discretionary market trading.

What new equity awards did Alamar Biosciences grant to its CEO?

The CEO received 76,509 restricted stock units and a large option grant. The RSUs vest monthly, while a stock option for 341,191 Common shares at $17.00 per share vests over four years, tying compensation to future stock performance.

How were Alamar’s preferred and Class A shares treated before the IPO?

Preferred and Class A shares automatically converted into Class B, then Common. Class A and Founders Preferred stock converted to Class B on a 1:1 basis, Series A-1 Preferred at 1:2.418, and each Class B share was reclassified into one Common share before the IPO.

What do the restructuring (J-code) transactions at Alamar Biosciences represent?

The J-code entries reflect equity restructurings, not cash trades. They record reclassifications among Class A, Class B, preferred stock, and options into Common Stock in connection with the IPO and option repricings between different underlying share classes.

How do the new RSUs for Alamar Biosciences’ CEO vest over time?

The 76,509 RSUs vest in monthly installments. Vesting continues from the grant date as long as the CEO maintains continuous service, gradually delivering Common Stock rather than in one lump-sum release.