STOCK TITAN

Northern Technologies director sells 12,000 shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Northern Technologies International Corp director Richard Nigon exercised a fully vested stock option for 12,000 shares of common stock at an exercise price of $6.70 per share on July 20, 2026, then sold 12,000 shares at a weighted average price of $8.004 per share in multiple trades between $8.00 and $8.04. The exercised option now has no remaining shares.

Positive

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Negative

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Insider NIGON RICHARD
Role Director
Sold 12,000 shs ($96K)
Approx. gross sale proceeds $96K
Approx. exercise cost $80K
Approx. pre-tax spread $16K
Type Security Shares Price Value
Exercise Stock Option (right to buy) F2 12,000 $0.00 $0.00
Exercise Common Stock 12,000 $6.70 $80K
Sale Common Stock F1 12,000 $8.004 $96K
Holdings After Transaction: Stock Option (right to buy) — 0 contracts (Direct); Common Stock — 47,148 shares (Direct)
Footnotes (2)
  1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.00 to $8.04, inclusive. The reporting person undertakes to provide to Northern Technologies International Corporation (NTIC), any security holder of NTIC, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.
  2. F2. This option has fully vested.
Shares sold 12,000 shares Common Stock sale on July 20, 2026
Sale weighted average price $8.004 per share Weighted average sale price for 12,000 Common Stock shares
Sale price range $8.00–$8.04 per share Individual trades executed within this price range
Options exercised 12,000 shares Stock Option (right to buy) converted into Common Stock
Exercise price $6.70 per share Conversion or exercise price of the stock option
Option expiration date 2026-08-31 Expiration date of the fully vested stock option
Option shares remaining 0 shares Total shares following transaction for the exercised option
Stock Option (right to buy) financial
"security title listed as “Stock Option (right to buy)” for the derivative"
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Exercise or conversion of derivative security regulatory
"transaction code description states “Exercise or conversion of derivative security”"
Sale in open market or private transaction financial
"transaction code description notes “Sale in open market or private transaction”"

FAQ

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

What insider transaction did NTIC director Richard Nigon report?

Director Richard Nigon reported exercising a fully vested stock option for 12,000 Northern Technologies (NTIC) common shares at $6.70 per share and immediately disposing of 12,000 shares through a sale on July 20, 2026, completing an exercise-and-sell sequence that exhausted that option grant.

How many Northern Technologies (NTIC) shares did Richard Nigon sell and at what price?

Richard Nigon sold 12,000 NTIC common shares at a weighted average price of $8.004 per share. According to the disclosure, the shares were sold in multiple transactions, with individual trade prices ranging from $8.00 to $8.04 per share on July 20, 2026.

Did Richard Nigon exercise stock options in this NTIC transaction, and at what strike price?

Yes. He exercised a stock option for 12,000 NTIC shares of common stock at an exercise price of $6.70 per share. The exercise involved a derivative security described as a “Stock Option (right to buy)” that converted into the same number of common shares.

Were the NTIC stock options exercised by Richard Nigon fully vested and when did they expire?

The option exercised by Richard Nigon was reported as fully vested. It covered 12,000 shares at a $6.70 exercise price and carried an expiration date of August 31, 2026, after which no shares under that specific option remained outstanding.

Was Richard Nigon’s NTIC share sale made under a Rule 10b5-1 trading plan?

The disclosure’s Rule 10b5-1 checkbox was not marked as being pursuant to a trading plan. That indicates the reported exercise and related sale on July 20, 2026, were not affirmed as conducted under a pre-arranged Rule 10b5-1 trading arrangement.

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

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
NIGON RICHARD

(Last)(First)(Middle)
C/O NORTHERN TECHNOLOGIES INT'L CORP.
4201 WOODLAND ROAD, PO BOX 69

(Street)
CIRCLE PINES MINNESOTA 55014

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
NORTHERN TECHNOLOGIES INTERNATIONAL CORP [ NTIC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock07/20/2026M12,000A$6.759,148D
Common Stock07/20/2026S12,000D$8.004(1)47,148D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy)$6.707/20/2026M12,000 (2)08/31/2026Common Stock12,000$00D
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.00 to $8.04, inclusive. The reporting person undertakes to provide to Northern Technologies International Corporation (NTIC), any security holder of NTIC, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.
2. This option has fully vested.
/s/ Matthew C. Wolsfeld-Attorney-in-fact07/21/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

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