Seer (SEER) awards president & CFO 79,000 RSUs and 119,000 options

Rhea-AI Filing Summary

Seer, Inc. reported an insider equity award to its president and CFO, David R. Horn. On February 3, 2026, he received 79,000 shares of Class A common stock in the form of restricted stock units that vest in 16 equal quarterly installments beginning on May 15, 2026. He was also granted an employee stock option to purchase 119,000 shares of Class A common stock at an exercise price of $1.79 per share, expiring on February 3, 2036. One-fourth of these option shares vest on February 3, 2027 and the remainder vests in equal monthly installments thereafter. Following these awards, Horn directly beneficially owned 509,005 shares of Class A common stock and 119,000 stock options.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Horn David R.

Role PRESIDENT & CFO

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option (right to buy)	119,000	$0.00	--
Grant/Award	Class A Common Stock	79,000	$0.00	--

Holdings After Transaction: Employee Stock Option (right to buy) — 119,000 shares (Direct); Class A Common Stock — 509,005 shares (Direct)

Footnotes (1)

1. The reported shares are represented by restricted stock units, or RSUs, which vest in 16 equal quarterly installments beginning on May 15, 2026. One-fourth of the shares subject to the option vest on February 3, 2027 and 1/48th of the shares vest monthly thereafter.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED 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^*

Horn David R.

(Last) (First) (Middle)

C/O SEER, INC.

3800 BRIDGE PARKWAY, SUITE 102

(Street)

REDWOOD CITY CA 94065

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Seer, Inc. [ SEER ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	PRESIDENT & CFO

3. Date of Earliest Transaction (Month/Day/Year)
02/03/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	02/03/2026		A		79,000(1)	A	$0	509,005	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	$1.79	02/03/2026		A		119,000		(2)	02/03/2036	Class A Common Stock	119,000	$0	119,000	D

Explanation of Responses:

1. The reported shares are represented by restricted stock units, or RSUs, which vest in 16 equal quarterly installments beginning on May 15, 2026.

2. One-fourth of the shares subject to the option vest on February 3, 2027 and 1/48th of the shares vest monthly thereafter.

	/s/ David Horn	02/05/2026
	** Signature of Reporting Person	Date
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.

FAQ

What insider transaction did Seer (SEER) report for David R. Horn?

Seer reported an equity grant to president and CFO David R. Horn. He received 79,000 Class A RSU-based shares and an option for 119,000 Class A shares, both awarded on February 3, 2026, as part of his executive compensation.

How many Seer (SEER) RSUs were granted to the president and CFO?

David R. Horn was granted 79,000 shares represented by restricted stock units. These RSUs vest in 16 equal quarterly installments starting May 15, 2026, meaning the award releases gradually over four years rather than all at once, aligning compensation with longer-term company performance.

What are the key terms of the Seer (SEER) stock option grant?

Horn received an employee stock option for 119,000 Class A shares at a $1.79 exercise price. One-fourth of the option vests on February 3, 2027, with the remaining 75% vesting in equal monthly installments, and the option expires on February 3, 2036.

How many Seer (SEER) shares does David R. Horn own after this Form 4?

After the reported transactions, Horn directly beneficially owned 509,005 shares of Seer Class A common stock. He also held 119,000 stock options, giving him the right to purchase additional shares in the future if he chooses to exercise those options.

When do the Seer (SEER) RSUs granted to the CFO start vesting?

The 79,000 RSU-based shares begin vesting on May 15, 2026. They vest in 16 equal quarterly installments, so portions of the award become deliverable every three months, encouraging continued service and alignment with Seer’s medium-term strategic and financial goals.

What is the vesting schedule for the Seer (SEER) stock options granted?

For the 119,000-share option, one-fourth vests on February 3, 2027. The remaining three-fourths vests in equal monthly installments after that date, continuing until fully vested, providing a long-term incentive over several years of continued employment and performance.