Slide Insurance officer intends $283K stock sale

Slide Insurance Holdings, Inc. (SLDE) received a notice under Rule 144 that officer Matthew Larson intends to sell common stock.

Rhea-AI Filing Summary

Slide Insurance Holdings, Inc. (SLDE) received a notice under Rule 144 that officer Matthew Larson intends to sell common stock. The notice covers 11,374 shares of common stock held through Morgan Stanley Smith Barney, with an aggregate market value listed as $282,530.16, in connection with an exercise of stock options for cash on September 14, 2026. The form also reports that Larson previously sold 11,374 shares of common stock on September 3, 2026 for aggregate proceeds of $280,083.61 under a Rule 10b5-1 trading plan.

Key Figures

Shares to be sold: 11,374 shares Aggregate market value of planned sale: $282,530.16 Shares sold in prior 3 months: 11,374 shares +2 more

5 metrics

Shares to be sold 11,374 shares Common stock covered by the Rule 144 notice for September 14, 2026

Aggregate market value of planned sale $282,530.16 Market value listed for 11,374 shares in the Rule 144 notice

Shares sold in prior 3 months 11,374 shares Common stock sold on September 3, 2026 under 10b5-1 sales

Proceeds from prior sale $280,083.61 Aggregate proceeds from the September 3, 2026 sale of 11,374 shares

Planned transaction date September 14, 2026 Date of stock option exercise and related sale listed in the notice

Key Terms

Rule 144, 10b5-1, Exercise of Stock Options, aggregate market value

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

10b5-1 regulatory

"10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd."

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Exercise of Stock Options financial

"Common | 09/14/2026 | Exercise of Stock Options | Issuer"

aggregate market value financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

What does the Form 144 filing mean for Slide Insurance Holdings, Inc. (SLDE)?

The Form 144 gives notice that officer Matthew Larson intends to sell 11,374 shares of SLDE common stock in connection with an exercise of stock options for cash on September 14, 2026. It also lists a prior sale under a Rule 10b5-1 plan.

How many Slide Insurance Holdings (SLDE) shares are covered by Matthew Larson’s planned sale?

The notice covers 11,374 shares of Slide Insurance Holdings common stock. The aggregate market value for these securities is listed as $282,530.16 in the filing.

What prior transactions are disclosed in this Slide Insurance Holdings (SLDE) Form 144?

The filing states that on September 3, 2026, Matthew Larson sold 11,374 shares of SLDE common stock, with aggregate proceeds of $280,083.61, as part of 10b5-1 Sales.

What is the source of the Slide Insurance Holdings (SLDE) shares to be sold?

The filing identifies the transaction as an Exercise of Stock Options, with the issuer as the source of the shares and the consideration being cash on September 14, 2026.

Which broker is handling the planned Slide Insurance Holdings (SLDE) share sale?

The securities are held through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, as listed in the Form 144.

On which market are Slide Insurance Holdings (SLDE) shares listed in this Form 144?

The Form 144 identifies the market for the common stock as NASDAQ for the shares covered by the notice filed for Matthew Larson.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/14/2026 - 04:51 PM Accepted by SEC EDGAR 09/14/2026 - 04:47 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002114934
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Slide Insurance Holdings, Inc.
SEC File Number	001-42707
Address of Issuer	4221 W. Boy Scout Blvd., Suite 200 Tampa FLORIDA 33607
Phone	8137482030
Name of Person for Whose Account the Securities are To Be Sold	MATTHEW LARSON
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	11374	282530.16	116811719	09/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/14/2026	Exercise of Stock Options	Issuer			11374	09/14/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	09/03/2026	11374	280083.61

144: Remarks and Signature

Remarks
Date of Notice	09/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/04/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Matthew Larson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)