TARA files Form 144 for proposed insider share sales

TARA filed a Form 144 notice reporting proposed sales of Common Stock by an affiliate/insider.

Rhea-AI Filing Summary

TARA filed a Form 144 notice reporting proposed sales of Common Stock by an affiliate/insider. The filing lists multiple proposed dispositions in late February and early March 2026, including specific lots: 26,755 shares on 02/24/2026, 78,716 shares on 02/25/2026, 35,173 shares on 03/04/2026, and 38,277 shares on 03/06/2026. The filing names Jefferies LLC as underwriter in connection with the securities to be sold.

Insights

Securities Compliance Attorney

Form 144 lists proposed insider sales and underwriter involvement.

Form 144 is a regulatory notice required when insiders or affiliates propose to sell restricted or control securities in reliance on Rule 144. The filing itemizes planned lots by date and quantity, and names Jefferies LLC as underwriter.

These entries are procedural: timing and completion of any sale depend on subsequent transactions and compliance with Rule 144 conditions.

Key Figures

Proposed sale: 26,755 shares Proposed sale: 78,716 shares Proposed sale: 35,173 shares +3 more

6 metrics

Proposed sale 26,755 shares planned on 02/24/2026

Proposed sale 78,716 shares planned on 02/25/2026

Proposed sale 35,173 shares planned on 03/04/2026

Proposed sale 38,277 shares planned on 03/06/2026

Reported dollar amount 161,584.00 paired with 26,755 shares on 02/24/2026

Reported dollar amount 457,046.00 paired with 78,716 shares on 02/25/2026

Key Terms

Form 144, Underwriter, Rule 144

3 terms

Form 144 regulatory

"Common Stock | Jefferies LLC 520 Madison Avenue New York NY 10022"

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.

Underwriter financial

"Securities To Be Sold | Underwriter | 09/24/2020 | See Remark 2"

An underwriter is a financial firm that evaluates, guarantees and helps sell a new security offering—such as a stock or bond—by buying the issue from the issuer and reselling it to investors or organizing the sale. Think of them as a bridge or safety net: they take on the risk, set the price, handle marketing and paperwork, and their work determines how much money a company can raise and how smoothly the offering reaches the market.

Rule 144 regulatory

"144: Securities Sold During The Past 3 Months"

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.

FAQ

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

What does TARA's Form 144 filing mean?

It notifies the SEC of proposed sales of restricted or control stock by an affiliate. The filing lists planned lots and dates, signaling an intent to sell but not confirming completed transactions.

How many shares does the Form 144 list for sale for TARA?

The filing lists several lots, including 26,755, 78,716, 35,173, and 38,277 shares. These are the quantities reported for specific dates in late February and early March 2026.

Who is the underwriter named in the TARA Form 144?

The filing names Jefferies LLC as the underwriter. Jefferies is listed in the securities-to-be-sold section associated with the Common Stock disposition.

Does a Form 144 confirm that shares were sold?

No. Form 144 reports proposed or intended sales under Rule 144 but does not certify that transactions executed. Completed sales appear later in transaction reports or trade confirmations.

Are dollar values shown in the Form 144 excerpt?

Yes. The excerpt pairs each lot with numeric values such as 161,584.00 and 457,046.00, which appear adjacent to the listed share quantities and dates in the filing.

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

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Accepted by SEC EDGAR 04/23/2026 - 08:41 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	0001551139
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	Protara Therapeutics, Inc.
SEC File Number	001-36694
Address of Issuer	345 Park Avenue South Third Floor New York NEW YORK 10010
Phone	646-844-0337
Name of Person for Whose Account the Securities are To Be Sold	667, L.P.
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	Former Affiliate

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	Jefferies LLC 520 Madison Avenue New York NY 10022	24802	132691.00	55060500	04/23/2026	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 Stock	09/22/2020	See Remark 2	Underwriter			24802	09/24/2020	See Remark 2

* 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
667, L.P. 860 Washington Street, 3rd Floor New York NY 10014	Common Stock	02/24/2026	26755	161584.00
667, L.P. 860 Washington Street, 3rd Floor New York NY 10014	Common Stock	02/25/2026	78716	457046.00
667, L.P. 860 Washington Street, 3rd Floor New York NY 10014	Common Stock	03/04/2026	35173	220151.00
667, L.P. 860 Washington Street, 3rd Floor New York NY 10014	Common Stock	03/06/2026	38277	223920.00

144: Remarks and Signature

Remarks	(1) 667, L.P. is affiliated with Baker Brothers Life Sciences, L.P. Baker Bros. Advisors LP serves as the investment adviser to 667, L.P. and Baker Brothers Life Sciences, L.P. Baker Brothers Life Sciences, L.P. is filing separately for the sale of 300,176 shares of common stock ("Common Stock") of Protara Therapeutics, Inc. (the "Issuer"), which along with the reported sales in this form by 667, L.P. totals 324,978 shares of Common Stock. (2) Common Stock converted from Series 1 Preferred.
Date of Notice	04/23/2026
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	By: BAKER BROS. ADVISORS LP, mgmt company and IA to 667, L.P., /s/ Scott L. Lessing, President
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)