Neutron CFO granted 110,661 RSUs, shares withheld

Neutron Holdings’ CFO received a sizable three-year RSU award, with a portion of shares withheld to cover tax obligations on vesting.

Rhea-AI Filing Summary

Neutron Holdings, Inc. (LIME) reported that its Chief Financial Officer, Ann B. Gugino, received a grant of 110,661 shares of Common Stock on September 15, 2026, in the form of restricted stock units that vest in approximately equal quarterly installments over three years, subject to continued service. On the same date, 6,295 shares of Common Stock were withheld by the company to pay taxes upon RSU vesting, which was not an open market transaction.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider GUGINO ANN B

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	110,661	$0.00	$0.00
Tax Withholding	Common Stock F2	6,295	$30.49	$192K

Holdings After Transaction: Common Stock — 259,033 shares (Direct)

Footnotes (2)

1. F1. Represents an award of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Common Stock of the Issuer. The RSUs vest in approximately equal quarterly installments over three years, subject to the Reporting Person's continuous service with the Issuer.
2. F2. Represents shares of Common Stock withheld by the Issuer for payment of taxes on vesting of restricted stock units; not an open market transaction.

Key Figures

RSU grant shares: 110,661 shares RSU vesting schedule: 3 years Shares withheld for taxes: 6,295 shares +1 more

4 metrics

RSU grant shares 110,661 shares Award of restricted stock units to CFO on September 15, 2026

RSU vesting schedule 3 years RSUs vest in approximately equal quarterly installments over three years

Shares withheld for taxes 6,295 shares Common Stock withheld to pay taxes on RSU vesting on September 15, 2026

Tax withholding price per share $30.49 per share Price used for 6,295 shares withheld for taxes on RSU vesting

Key Terms

restricted stock units ("RSUs"), continuous service, withheld, open market transaction

4 terms

restricted stock units ("RSUs") financial

"Represents an award of restricted stock units ("RSUs"), each of which"

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.

continuous service financial

"over three years, subject to the Reporting Person's continuous service"

withheld financial

"Represents shares of Common Stock withheld by the Issuer for payment"

open market transaction financial

"withheld by the Issuer for payment of taxes ... not an open market transaction"

An open market transaction is a buy or sell of publicly traded securities executed on an exchange or other public trading venue where many buyers and sellers can participate. It matters to investors because these trades change the visible supply and demand for a stock—like shoppers moving prices in a busy marketplace—affecting share price, liquidity (how easily you can trade), and sometimes the balance of ownership.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What equity award did Neutron Holdings (LIME) grant to its CFO on September 15, 2026?

Neutron Holdings granted CFO Ann B. Gugino 110,661 restricted stock units (RSUs) on September 15, 2026. Each RSU represents a contingent right to receive one share of Common Stock, vesting in equal quarterly installments over three years, subject to continuous service.

How do the Neutron Holdings (LIME) RSUs granted to the CFO vest?

The RSUs granted to the CFO vest in approximately equal quarterly installments over three years, and vesting is conditioned on the reporting person’s continuous service with Neutron Holdings.

Were any Neutron Holdings (LIME) shares disposed of in connection with the CFO’s RSUs?

Yes. On September 15, 2026, 6,295 shares of Neutron Holdings Common Stock were withheld by the issuer to pay taxes due upon RSU vesting. The filing specifies this was not an open market transaction.

What price per share was used for the Neutron Holdings (LIME) tax withholding transaction?

For the tax-withholding transaction related to RSU vesting, 6,295 shares were withheld at a reported price of $30.49 per share, in payment of taxes on the vesting event.

Was the Neutron Holdings (LIME) Form 4 filed under a Rule 10b5-1 trading plan?

No. The document-level indicator for Rule 10b5-1 plans is false, and the footnotes do not state that the transactions were effected pursuant to any Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/17/2026 - 04:23 PM Accepted by SEC EDGAR 09/17/2026 - 04:23 PM Learn about SEC filing dates

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^*

GUGINO ANN B

(Last) (First) (Middle)

C/O NEUTRON HOLDINGS, INC.

444 TOWNSEND STREET, FL 1

(Street)

SAN FRANCISCO CALIFORNIA 94107

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Neutron Holdings, Inc. [ LIME ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/15/2026

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	09/15/2026		A		110,661(1)	A	$0	265,328	D
Common Stock	09/15/2026		F		6,295(2)	D	$30.49	259,033	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 an award of restricted stock units ("RSUs"), each of which represents a contingent right to receive one share of Common Stock of the Issuer. The RSUs vest in approximately equal quarterly installments over three years, subject to the Reporting Person's continuous service with the Issuer.

2. Represents shares of Common Stock withheld by the Issuer for payment of taxes on vesting of restricted stock units; not an open market transaction.

Remarks:

	/s/ Susie Giordano, Attorney-in-Fact	09/17/2026
	** 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)