Slide Insurance director sells 169K shares

A Slide Insurance Holdings director reported pre-planned indirect open-market sales totaling 169,272 shares while continuing to hold a substantial direct stake.

Rhea-AI Filing Summary

Slide Insurance Holdings, Inc. (SLDE) director Robert Gries Jr. reported indirect sales of company common stock held by GRM Family Limited Partnership. On September 8 and 9, 2026, the partnership sold a total of 169,272 shares at weighted average prices around $24.28–$24.44 per share under a Rule 10b5-1 trading plan. Gries reports 843,804 shares of common stock held directly after these transactions and disclaims beneficial ownership of the partnership-held shares except to the extent of his pecuniary interest.

Insider Trade Summary 10b5-1

Net Seller: 169,272 shares

Net Sell 3 txns

Insider Gries Robert JR

Role Director

Sold 169,272 shs ($4.13M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F4, F3	61,762	$24.28	$1.50M
Sale	Common Stock F1, F2, F3	107,510	$24.44	$2.63M
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 1,523,449 shares (Indirect, By GRM Family Limited Partnership); Common Stock — 843,804 shares (Direct)

Footnotes (4)

1. F1. Sold pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 12, 2025.
2. F2. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transactions ranges from $24.15 to $24.65 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.
3. F3. The securities reported herein are held by GRM Family Limited Partnership, which is an entity controlled by the reporting person. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.
4. F4. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transactions ranges from $24.12 to $24.40 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

Key Figures

Shares sold September 9, 2026: 61,762 shares Weighted average sale price September 9, 2026: $24.28 per share Shares sold September 8, 2026: 107,510 shares +4 more

7 metrics

Shares sold September 9, 2026 61,762 shares Indirect sale of Slide Insurance Holdings common stock by GRM Family Limited Partnership

Weighted average sale price September 9, 2026 $24.28 per share Open-market or private sale range $24.12–$24.40 per share

Shares sold September 8, 2026 107,510 shares Indirect sale of Slide Insurance Holdings common stock by GRM Family Limited Partnership

Weighted average sale price September 8, 2026 $24.44 per share Open-market or private sale range $24.15–$24.65 per share

Total shares sold 169,272 shares Aggregate of indirect sales reported across September 8–9, 2026

Direct holdings after transactions 843,804 shares Common stock held directly by Robert Gries Jr. as of September 8, 2026

10b5-1 plan adoption date December 12, 2025 Date the reporting person adopted the trading plan used for these sales

Key Terms

Rule 10b5-1 trading plan, weighted average price, beneficial ownership, pecuniary interest, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"Sold pursuant to a 10b5-1 trading plan adopted by the Reporting Person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"Represents the weighted average price of the shares sold."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficial ownership regulatory

"The reporting person disclaims beneficial ownership of these securities"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

pecuniary interest financial

"except to the extent of his pecuniary interest therein."

indirect ownership financial

"The securities reported herein are held by GRM Family Limited Partnership"

FAQ

What insider transactions did SLDE director Robert Gries Jr. report in this Form 4?

He reported indirect sales of 169,272 shares of Slide Insurance Holdings common stock on September 8–9, 2026, executed by GRM Family Limited Partnership in open-market or private transactions.

At what prices were the SLDE shares sold in the reported transactions?

The reported sales used weighted average prices: about $24.44 per share on September 8, 2026 and about $24.28 per share on September 9, 2026, with actual trade prices ranging from $24.12–$24.65 per share.

Were the SLDE insider sales made under a Rule 10b5-1 trading plan?

Yes. The filing states the shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025, and the document-level Rule 10b5-1 checkbox is affirmed.

How many SLDE shares does Robert Gries Jr. hold directly after these transactions?

A holding entry reports that he holds 843,804 shares of Slide Insurance Holdings common stock directly as of September 8, 2026.

Who actually held the SLDE shares that were sold in these transactions?

The sold shares were held by GRM Family Limited Partnership, an entity controlled by Robert Gries Jr. The filing notes he disclaims beneficial ownership of these securities except to the extent of his pecuniary interest.

Does the Form 4 specify the price range for the SLDE insider sales?

Yes. For the September 8 sale, prices ranged from $24.15 to $24.65 per share, and for the September 9 sale, from $24.12 to $24.40 per share. The reported prices are weighted averages over these ranges.

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Available on EDGAR 09/10/2026 - 04:31 PM Accepted by SEC EDGAR 09/10/2026 - 04:30 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).

X

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^*

Gries Robert JR

(Last) (First) (Middle)

C/O SLIDE INSURANCE HOLDINGS, INC.

4221 W. BOY SCOUT BLVD., SUITE 200

(Street)

TAMPA FLORIDA 33607

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Slide Insurance Holdings, Inc. [ SLDE ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

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	09/08/2026		S		107,510(1)	D	$24.44(2)	1,585,211	I	By GRM Family Limited Partnership(3)
Common Stock	09/09/2026		S		61,762(1)	D	$24.28(4)	1,523,449	I	By GRM Family Limited Partnership(3)
Common Stock								843,804	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. Sold pursuant to a 10b5-1 trading plan adopted by the Reporting Person on December 12, 2025.

2. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transactions ranges from $24.15 to $24.65 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

3. The securities reported herein are held by GRM Family Limited Partnership, which is an entity controlled by the reporting person. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

4. Represents the weighted average price of the shares sold. The prices of the shares sold pursuant to the transactions ranges from $24.12 to $24.40 per share. The Reporting Person, upon request, will provide the Securities and Exchange Commission staff, the issuer or a security holder of the issuer full information regarding the number of shares sold at each separate price.

	/s/ Robert Gries Jr.	09/10/2026
	** 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)