Michael D. Dunn reports Common share sales (SYM) via Form 144

Rhea-AI Filing Summary

Michael D. Dunn reported proposed sales of Common stock under Form 144. The filing lists multiple share dispositions during the past three months, including restricted stock vesting under a registered plan dated 04/23/2026. The transactions are described as securities to be sold and prior sales are itemized with share counts and gross proceeds.

Insights

Securities Compliance Counsel

Routine Form 144 disclosure of proposed insider sales; documentation-focused, not a corporate action.

The filing documents proposed sales by a reporting person and lists multiple completed sales over the prior three months with share counts and gross proceeds. The listed vesting is characterized as "restricted stock vesting under a registered plan."

These notices are disclosure-driven; cash‑flow treatment and exact timing of future brokerage transactions are not specified in the excerpt. Subsequent trade confirmations or transaction-level filings will show execution details.

Key Figures

Sale example 1: 15,040 shares Sale example 2: 4,187 shares Sale example 3: 3,025 shares

3 metrics

Sale example 1 15,040 shares sale for $841,087.94 on 02/24/2026

Sale example 2 4,187 shares sale for $223,724.25 on 03/25/2026

Sale example 3 3,025 shares sale for $190,357.56 on 04/22/2026

Key Terms

Form 144, Restricted stock vesting under a registered plan, Class A Common

3 terms

Form 144 regulatory

"lists proposed sales by a reporting person under Form 144"

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.

Restricted stock vesting under a registered plan financial

"Restricted stock vesting under a registered plan dated 04/23/2026"

Class A Common market

"Multiple entries list "Class A Common" share dispositions"

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	2035	122129.46	125753388	04/24/2026	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	04/23/2026	Restricted stock vesting under a registered plan	Issuer			2035	04/23/2026	Services Rendered

* 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
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	04/22/2026	3025	190357.56
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	04/08/2026	3559	195038.12
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	03/25/2026	4187	223724.25
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	03/11/2026	4926	250086.03
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	02/25/2026	4274	240464.63
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Common	02/24/2026	15040	841087.94
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	02/11/2026	2593	152176.13
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Class A Common	01/28/2026	3051	167970.16
MICHAEL D DUNN 200 Research Drive Wilmington MA 01887	Common	01/26/2026	8470	509091.89

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Michael D. Dunn's Form 144 for SYM mean?

It notifies the SEC of proposed sales of SYM common shares by Michael D. Dunn. The filing lists multiple prior sales and a planned sale tied to restricted stock vesting under a registered plan dated 04/23/2026, providing regulatory disclosure of intended transactions.

How many shares and proceeds are shown in recent transactions on the Form 144?

The filing lists several sales with specific counts and gross proceeds. Examples include 15,040 shares for $841,087.94 on 02/24/2026 and 4,187 shares for $223,724.25 on 03/25/2026, as itemized in the form.

Is the Form 144 an indication of company-wide share issuance for SYM?

No — it is a notice of proposed insider sales, not a corporate issuance. The filing documents sales by an individual reporting person and references restricted stock vesting under a registered plan; it does not register new corporate shares for public issuance.

Does the filing state when the proposed sales will be executed?

The Form 144 lists intended sales but does not fix execution timing in this excerpt. It provides the date of the vesting event (04/23/2026) and prior sale dates, but brokerage execution details are not included here.

Will SYM receive proceeds from the sales listed on the Form 144?

Proceeds from these transactions would be received by the selling holder, not necessarily the issuer. The filing lists the reporting person and gross proceeds per sale; the excerpt does not describe use of proceeds by the issuer.