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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13G
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UNDER THE SECURITIES EXCHANGE ACT OF 1934
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(Amendment No. 1)*
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Northern Technologies International Corp. (Name of Issuer) |
Common Stock, par value $0.02 per share (Title of Class of Securities) |
665809109 (CUSIP Number) |
09/30/2025 (Date of Event Which Requires Filing of this Statement) |
| Check the appropriate box to designate the rule pursuant to which this Schedule is filed: |
 Rule 13d-1(b)
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 Rule 13d-1(c)
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| Rule 13d-1(d)
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SCHEDULE 13G
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| CUSIP No. | 665809109 |
| 1 | Names of Reporting Persons
NEEDHAM INVESTMENT MANAGEMENT L.L.C. | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
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| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
640,000.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
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| 11 | Percent of class represented by amount in row (9)
6.8 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IA, OO |
SCHEDULE 13G
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| CUSIP No. | 665809109 |
| 1 | Names of Reporting Persons
NEEDHAM ASSET MANAGEMENT, LLC | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
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| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
DELAWARE
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
640,000.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
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| 11 | Percent of class represented by amount in row (9)
6.8 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
HC, OO |
SCHEDULE 13G
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| CUSIP No. | 665809109 |
| 1 | Names of Reporting Persons
NEEDHAM AGGRESSIVE GROWTH FUND | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
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| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
MARYLAND
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
640,000.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
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| 11 | Percent of class represented by amount in row (9)
6.8 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
IV, OO |
SCHEDULE 13G
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| CUSIP No. | 665809109 |
| 1 | Names of Reporting Persons
GEORGE A. NEEDHAM | ||||||||
| 2 | Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
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| 3 | Sec Use Only | ||||||||
| 4 | Citizenship or Place of Organization
UNITED STATES
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 9 | Aggregate Amount Beneficially Owned by Each Reporting Person
640,000.00 | ||||||||
| 10 | Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
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| 11 | Percent of class represented by amount in row (9)
6.8 % | ||||||||
| 12 | Type of Reporting Person (See Instructions)
HC, IN |
SCHEDULE 13G
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| Item 1. | ||
| (a) | Name of issuer:
Northern Technologies International Corp. | |
| (b) | Address of issuer's principal executive offices:
4201 Woodland Road, P.O. Box 69, Circle Pines, Minnesota 55014, United States of America | |
| Item 2. | ||
| (a) | Name of person filing:
Needham Investment Management L.L.C.
Needham Asset Management, LLC
Needham Aggressive Growth Fund
George A. Needham | |
| (b) | Address or principal business office or, if none, residence:
Needham Investment Management L.L.C.
250 Park Avenue, 10th Floor
New York, New York 10117-1099
United States of America
Needham Asset Management, LLC
c/o Needham Investment Management L.L.C.
250 Park Avenue, 10th Floor
New York, New York 10117-1099
United States of America
Needham Aggressive Growth Fund
c/o Needham Investment Management L.L.C.
250 Park Avenue, 10th Floor
New York, New York 10117-1099
United States of America
George A Needham
c/o Needham Investment Management L.L.C.
250 Park Avenue, 10th Floor
New York, New York 10117-1099
United States of America | |
| (c) | Citizenship:
Needham Investment Management L.L.C. - Delaware
Needham Asset Management, LLC - Delaware
Needham Aggressive Growth Fund - Other - Maryland
George A Needham - United States | |
| (d) | Title of class of securities:
Common Stock, par value $0.02 per share | |
| (e) | CUSIP No.:
665809109 | |
| Item 3. | If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: | |
| (a) | Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
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| (b) | Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
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| (c) | Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
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| (d) | Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
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| (e) | An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
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| (f) | An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
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| (g) | A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
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| (h) | A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
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| (i) | A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
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| (j) | A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution: | |
| (k) | Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
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| Item 4. | Ownership | |
| (a) | Amount beneficially owned:
Needham Investment Management L.L.C. - 640,000
Needham Asset Management, LLC - 640,000
Needham Aggressive Growth Fund - 640,000
George A Needham - 640,000 | |
| (b) | Percent of class:
Needham Investment Management L.L.C. - 6.8%
Needham Asset Management, LLC - 6.8%
Needham Aggressive Growth Fund - 6.8%
George A Needham - 6.8% %
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| (c) | Number of shares as to which the person has:
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| (i) Sole power to vote or to direct the vote:
Needham Investment Management L.L.C. - 0
Needham Asset Management, LLC - 0
Needham Aggressive Growth Fund - 0
George A Needham - 0 | ||
| (ii) Shared power to vote or to direct the vote:
Needham Investment Management L.L.C. - 640,000
Needham Asset Management, LLC - 640,000
Needham Aggressive Growth Fund - 640,000
George A Needham - 640,000 | ||
| (iii) Sole power to dispose or to direct the disposition of:
Needham Investment Management L.L.C. - 0
Needham Asset Management, LLC - 0
Needham Aggressive Growth Fund - 0
George A Needham - 0 | ||
| (iv) Shared power to dispose or to direct the disposition of:
Needham Investment Management L.L.C. - 640,000
Needham Asset Management, LLC - 640,000
Needham Aggressive Growth Fund - 640,000
George A Needham - 640,000 | ||
| Item 5. | Ownership of 5 Percent or Less of a Class. | |
| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. | |
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
All of the securities reported in this Schedule 13G Amendment No.1 are directly owned by advisory clients of Needham Investment Management L.L.C.. None of those advisory clients, other than Needham Aggressive Growth Fund, may be deemed to beneficially own more than 5% Common Stock, par value $0.02 per share. | ||
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. | |
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
Please see Exhibit B attached hereto. | ||
| Item 8. | Identification and Classification of Members of the Group. | |
Not Applicable
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| Item 9. | Notice of Dissolution of Group. | |
Not Applicable
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| Item 10. | Certifications: |
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. |
| SIGNATURE | |
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
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Comments accompanying signature: * Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his, her or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.
To the extent that "ownership of 5 percent or less of a class" was indicated in Item 5, such response only applies to the Reporting Person(s) that indicated elsewhere herein that it beneficially owns five percent (5%) or less of the class.
Exhibit Information
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Exhibit A - Joint Filing Agreement
Exhibit B - Control Person Identification |
Exhibit A
JOINT FILING AGREEMENT
The undersigned agree that this Schedule 13G Amendment No. 1 dated November 13, 2025 relating to the Common Stock, par value $0.02 per share, of Northern Technologies International Corp. shall be filed on behalf of the undersigned.
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NEEDHAM INVESTMENT MANAGEMENT L.L.C.
By: /s/ James W. Giangrasso | |
| Name: James W. Giangrasso | |
| Title: Chief Financial Officer |
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NEEDHAM ASSET MANAGEMENT, LLC
By: /s/ James W. Giangrasso | |
| Name: James W. Giangrasso | |
| Title: Authorized Person |
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NEEDHAM AGGRESSIVE GROWTH FUND
By: /s/ James W. Giangrasso | |
| Name: James W. Giangrasso | |
| Title: Chief Financial Officer |
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GEORGE A. NEEDHAM
By: /s/ George A. Needham |
Exhibit B
CONTROL PERSON IDENTIFICATION
Needham Investment Management L.L.C. is the relevant entity for which each of Needham Asset Management, LLC and George A. Needham may be considered a control person.