Matthew Larson files Form 144 to sell 58,502 shares

Matthew Larson proposes to sell 58,502 shares of Common Stock under a Form 144 notification related to the exercise of stock options.

Rhea-AI Filing Summary

Matthew Larson proposes to sell 58,502 shares of Common Stock under a Form 144 notification related to the exercise of stock options. The filing lists multiple prior 10b5-1 sales by Larson in March–April 2026, with individual trades such as 44,752 shares sold on 04/29/2026 for $895,939.52.

The transaction is processed through Morgan Stanley Smith Barney LLC. The Form 144 shows sale dates and per-trade proceeds for recent 10b5-1 transactions; timing and additional conditions are as stated in the filing.

Insights

Insider Transactions Compliance Analyst

Routine Form 144 reporting of option-related sales under a 10b5-1 plan.

The filing documents a proposed sale of 58,502 shares from an exercise of stock options and lists multiple executed 10b5-1 sales in March–April 2026. The broker listed is Morgan Stanley Smith Barney LLC.

Observers should note that the presence of a 10b5-1 sales schedule typically indicates pre-arranged dispositions; the filing itself lists per-trade shares and proceeds but does not state broader financial impact.

Key Figures

Proposed shares to sell: 58,502 shares Recent 10b5-1 sale: 44,752 shares Recent 10b5-1 sale: 11,250 shares +2 more

5 metrics

Proposed shares to sell 58,502 shares listed under Securities To Be Sold, <date>05/04/2026</date>

Recent 10b5-1 sale 44,752 shares sold on <date>04/29/2026</date> for <money>$895,939.52</money>

Recent 10b5-1 sale 11,250 shares sold on <date>04/27/2026</date> for <money>$211,213.13</money>

Recent 10b5-1 sale 11,250 shares sold on <date>04/20/2026</date> for <money>$218,180.25</money>

Recent 10b5-1 sale 22,500 shares sold on <date>02/25/2026</date> for <money>$427,511.25</money>

Key Terms

10b5-1, Exercise of Stock Options, Form 144

3 terms

10b5-1 regulatory

"10b5-1 Sales for MATTHEW LARSON 04/29/2026 44,752 shares"

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

"Securities To Be Sold | 05/04/2026 | Exercise of Stock Options"

Form 144 regulatory

"144: Filer Information 144: Issuer Information 144: Securities Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What does Matthew Larson's Form 144 for SLDE report?

It reports a proposed sale of 58,502 shares of Common Stock. The filing ties the sale to an exercise of stock options and lists executed 10b5-1 sales in March–April 2026 with per-trade proceeds shown.

Which broker is handling the reported sale in Form 144 for SLDE?

Morgan Stanley Smith Barney LLC is listed as the broker. The filing shows the broker's address and indicates the transactions are processed through that firm for the reported option exercise and 10b5-1 sales.

Were there recent 10b5-1 sales by Matthew Larson before this Form 144?

Yes. Multiple 10b5-1 sales are listed in March–April 2026. Examples include 44,752 shares on 04/29/2026 for $895,939.52 and other dated trades with stated proceeds.

Does the Form 144 state how proceeds will be used?

The filing does not state a use-of-proceeds purpose in the provided excerpt. It lists share counts, sale dates, and dollar proceeds for individual trades, but no allocation of proceeds is shown in the excerpt.

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

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Accepted by SEC EDGAR 05/04/2026 - 04:30 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	58502	1089307.24	114559246	05/04/2026	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	05/04/2026	Exercise of Stock Options	Issuer			58502	05/04/2026	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	04/29/2026	44752	895939.52
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	04/27/2026	11250	211213.13
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	04/20/2026	11250	218180.25
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	04/16/2026	8750	166250.00
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	04/13/2026	10000	179993.00
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	04/06/2026	11250	202500.00
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	03/30/2026	11250	202500.00
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	03/24/2026	11250	202500.00
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	03/16/2026	11250	202500.00
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	03/03/2026	11250	213815.25
10b5-1 Sales for MATTHEW LARSON 4221 W. Boy Scout Blvd., Suite 200 Tampa FL 33607	Common	02/25/2026	22500	427511.25

144: Remarks and Signature

Remarks	The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
Date of Notice	05/04/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/04/2025
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)