Taysha (TSHA) files Form 144 for 50,451 vested RSUs on 08/21/2025

Rhea-AI Filing Summary

Taysha Gene Therapies (TSHA) filed a Form 144 reporting a proposed sale of 50,451 shares of common stock, representing a small fraction of the company's outstanding shares. The shares were issued as an RSU award and vested on 08/21/2025, with the reporting person stating the consideration for the grant was continued service as an employee. The proposed sale lists Maxim Group LLC as the broker and an aggregate market value of $144,794.37. The approximate date of sale and the acquisition/settlement date are both reported as 08/21/2025, and the securities are listed on Nasdaq. The filer reports no other securities sold in the past three months and affirms no undisclosed material adverse information.

Positive

• Disclosure appears complete and timely for a Form 144, including broker, share count, value, acquisition method, and sale date
• No sales in prior three months reported, indicating this is a current vesting/sale rather than frequent insider selling

Negative

• Insider sale is reported, which investors may note even though the amount is immaterial relative to outstanding shares

Insights

Securities Analyst

TL;DR: Routine insider RSU sale notice; small position relative to outstanding shares, appears procedural and non-material.

The Form 144 discloses a prospective sale of 50,451 RSU-settled shares by an employee following vesting on the same date. With an aggregate value of $144,794.37 versus 272,794,885 shares outstanding, the transaction is immaterial to overall market capitalization. The filing names a broker and confirms no sales in the prior three months, indicating compliance with disclosure rules. There is no new financial or operational information about the issuer in this notice.

Corporate Governance Expert

TL;DR: Compliance-focused filing; confirms insider represented absence of undisclosed material facts and adherence to Rule 144 timing.

The notice documents an employee's vested RSU sale and includes the standard representation that the seller lacks material nonpublic information. The details—acquisition by RSU award, settlement-in-stock, broker identification, and sale date—are consistent with routine insider liquidity events and governance disclosure practices. No governance concerns or irregularities are evident from the provided fields.

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 Stock	Maxim Group LLC 300 Park Avenue, 16th Floor New York NY 10022	50451	144794.37	272794885	08/21/2025	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 Stock	08/21/2025	RSU Award	Issuer			50451	08/21/2025	Vested grant settled instock; consideration was Reporting Person's continued service as an employee ofthe Issuer.

* 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

Nothing to Report

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 the TSHA Form 144 report say was sold?

The filing reports a proposed sale of 50,451 shares of common stock derived from an RSU award.

When were the shares acquired and when is the approximate sale date?

The shares were acquired (vested/settled) on 08/21/2025, and the approximate date of sale is also listed as 08/21/2025.

Who is the broker handling the transaction on the TSHA Form 144?

The broker named in the filing is Maxim Group LLC (300 Park Avenue, 16th Floor, New York, NY).

What is the aggregate market value and how large is this position relative to outstanding shares?

Aggregate market value is reported as $144,794.37; the company has 272,794,885 shares outstanding, making this position immaterial in size.

Did the filer report any securities sold in the past three months?

The filing states Nothing to Report for securities sold during the past three months.