NetApp officer plans 1,000-share, $185K stock sale

NetApp officer Elizabeth O'Callahan filed a Rule 144 notice to sell 1,000 shares of NTAP common stock, with prior 1,000‑share sales disclosed for July and August 2026.

Rhea-AI Filing Summary

NetApp, Inc. (NTAP) received a notice of proposed sale under Rule 144 for its common stock by officer Elizabeth O'Callahan. The notice covers a planned sale of 1,000 shares of common stock through Morgan Stanley Smith Barney LLC, with an aggregate market value listed as $184,740 and 196,419,005 shares of common stock reported as outstanding. The securities to be sold are described as restricted stock acquired from the issuer on May 15, 2025. The notice also lists prior sales by the same person of 1,000 shares on August 10, 2026 for $193,820 and 1,000 shares on July 10, 2026 for $170,920.

Key Figures

Shares to be sold: 1,000 shares Aggregate market value of proposed sale: $184,740 Shares outstanding: 196,419,005 shares +2 more

5 metrics

Shares to be sold 1,000 shares Common stock proposed to be sold under Rule 144 by Elizabeth O'Callahan

Aggregate market value of proposed sale $184,740 Value reported for 1,000 NetApp common shares to be sold

Shares outstanding 196,419,005 shares NetApp common stock reported as outstanding in the Form 144

Prior sale on August 10, 2026 1,000 shares for $193,820 NetApp common stock sold by Elizabeth O'Callahan during past 3 months

Prior sale on July 10, 2026 1,000 shares for $170,920 NetApp common stock sold by Elizabeth O'Callahan during past 3 months

Key Terms

Rule 144, restricted stock, aggregate market value, NASDAQ

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.

restricted stock financial

"Common | 05/15/2025 | Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

aggregate market value financial

"Common | Morgan Stanley Smith Barney LLC ... | 1000 | 184740.00"

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.

NASDAQ market

"| 196419005 | 09/10/2026 | NASDAQ"

The Nasdaq is a stock exchange where many companies' shares are bought and sold, functioning much like a marketplace for investments. It matters to investors because it provides a platform to buy and sell ownership stakes in companies, helping them track the value of those companies and make informed decisions. As one of the largest and most technology-focused markets, it also reflects trends and developments in the business world.

FAQ

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

What does the new Form 144 filing disclose for NetApp (NTAP)?

The filing discloses that Elizabeth O'Callahan, an officer of NetApp, filed a Rule 144 notice to sell 1,000 shares of NetApp common stock, with an aggregate market value stated as $184,740, and identifies the shares as restricted stock acquired from the issuer.

How many NetApp (NTAP) shares are covered by the proposed Rule 144 sale?

The notice covers a proposed sale of 1,000 shares of NetApp common stock. These shares are described as restricted stock that were acquired from NetApp on May 15, 2025.

What aggregate market value is reported for the NetApp (NTAP) shares to be sold?

The Form 144 lists an aggregate market value of $184,740 for the 1,000 shares of NetApp common stock proposed to be sold under Rule 144 through Morgan Stanley Smith Barney LLC.

How many NetApp (NTAP) shares are reported as outstanding in the Form 144?

The filing reports that 196,419,005 shares of NetApp common stock are outstanding. This figure is presented in the securities information section and is separate from the 1,000 shares proposed for sale.

What prior NetApp (NTAP) stock sales by Elizabeth O'Callahan are disclosed?

The notice lists past 3‑month sales by Elizabeth O'Callahan of 1,000 shares of NetApp common stock on August 10, 2026 for $193,820 and 1,000 shares on July 10, 2026 for $170,920.

Through which broker is the NetApp (NTAP) Rule 144 sale planned?

The proposed sale is listed as being through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004, with the shares trading on NASDAQ.

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

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Available on EDGAR 09/10/2026 - 04:05 PM Accepted by SEC EDGAR 09/10/2026 - 04:04 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	0001911064
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	NETAPP, INC.
SEC File Number	000-27130
Address of Issuer	3060 Olsen Drive San Jose CALIFORNIA 95128
Phone	(408) 822-6000
Name of Person for Whose Account the Securities are To Be Sold	ELIZABETH O'CALLAHAN
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	1000	184740.00	196419005	09/10/2026	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	05/15/2025	Restricted Stock	Issuer			1000	05/15/2025	Not Applicable

* 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
ELIZABETH O'CALLAHAN 3060 Olsen Drive San Jose CA 95128	Common	08/10/2026	1000	193820.00
ELIZABETH O'CALLAHAN 3060 Olsen Drive San Jose CA 95128	Common	07/10/2026	1000	170920.00

144: Remarks and Signature

Remarks
Date of Notice	09/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/22/2025
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/ Elizabeth Mary O'Callahan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)