Ouster (OUST) General Counsel receives 46,125 RSUs in service-based grant

Rhea-AI Filing Summary

Ouster, Inc. reported that its General Counsel and Secretary, Megan Chung, acquired 46,125 shares of common stock through a grant of restricted stock units (RSUs). Each RSU represents a right to receive one share of common stock, bringing her direct holdings to 219,673 shares after this award.

The RSUs vest in equal installments, with 1/12 of the total vesting on each quarterly anniversary of March 11, 2026, as long as she continues serving the company on each vesting date. The RSUs do not have an expiration date, indicating a long-term, service-based compensation structure rather than an open-market purchase or sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Chung Megan

Role General Counsel and Secretary

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	46,125	$0.00	--

Holdings After Transaction: Common Stock — 219,673 shares (Direct)

Footnotes (1)

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Key Figures

RSUs granted: 46,125 shares Post-transaction holdings: 219,673 shares Vesting schedule: 1/12 quarterly +2 more

5 metrics

RSUs granted 46,125 shares Grant of restricted stock units to General Counsel Megan Chung

Post-transaction holdings 219,673 shares Total common stock directly held after RSU award

Vesting schedule 1/12 quarterly RSUs vest each quarterly anniversary of March 11, 2026

Vesting commencement date March 11, 2026 Start date for quarterly RSU vesting

RSU expiration No expiration date RSUs remain outstanding subject to vesting conditions

Key Terms

restricted stock units ("RSUs"), vesting commencement date, quarterly anniversary, continued service

4 terms

restricted stock units ("RSUs") financial

"Represents Ouster, Inc. (the "Company") restricted stock units ("RSUs")."

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.

vesting commencement date financial

"on each quarterly anniversary of March 11, 2026, the vesting commencement date"

The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.

quarterly anniversary financial

"on each quarterly anniversary of March 11, 2026"

A quarterly anniversary marks the date that occurs every three months after a specific event, such as an investment or a business milestone. It is similar to a birthday that repeats four times a year, helping investors track the timing of important updates or changes. Recognizing these anniversaries allows investors to stay informed about progress and make timely decisions.

continued service financial

"subject to the reporting person's continued service through the applicable vesting date"

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^*

Chung Megan

(Last) (First) (Middle)

350 TREAT AVENUE

(Street)

SAN FRANCISCO CALIFORNIA 94110

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Ouster, Inc. [ OUST ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel and Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/11/2026

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

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/11/2026		A		46,125(1)	A	$0	219,673	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

Explanation of Responses:

1. Represents Ouster, Inc. (the "Company") restricted stock units ("RSUs"). Each RSU represents a contingent right to receive one share of the Company's common stock. The RSUs vest as to 1/12 of the total number of RSUs on each quarterly anniversary of March 11, 2026, the vesting commencement date, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.

	/s/ Megan Chung	04/14/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Ouster (OUST) report for Megan Chung?

Ouster reported that General Counsel and Secretary Megan Chung received a grant of 46,125 restricted stock units. Each RSU represents a right to one share of common stock, awarded as equity compensation rather than an open-market share purchase.

How many Ouster (OUST) shares does Megan Chung hold after this Form 4?

After the grant, Megan Chung directly holds 219,673 shares of Ouster common stock. This total includes the 46,125 shares underlying newly granted RSUs, which are scheduled to vest over time, subject to continued service with the company.

How do the 46,125 RSUs granted to Megan Chung at Ouster (OUST) vest?

The 46,125 RSUs vest in 12 equal installments. One-twelfth of the total vests on each quarterly anniversary of March 11, 2026, provided Megan Chung continues her service with Ouster through each applicable vesting date.

Do the RSUs granted to Ouster (OUST) executive Megan Chung have an expiration date?

The RSUs granted to Megan Chung have no expiration date. Instead, they are tied to a service-based vesting schedule, with vesting occurring quarterly after March 11, 2026, as long as she remains in service with the company.

Is Megan Chung’s Ouster (OUST) Form 4 transaction an open-market buy or sale?

The Form 4 reflects a grant or award acquisition of 46,125 RSUs, not an open-market trade. The shares are issued as equity compensation and vest over time based on continued service, rather than being bought or sold in the market.