STOCK TITAN

Marathon Bancorp (MBBC) SVP Terry Cornish adds 1,389 shares in open-market buys

Filing Impact
(Neutral)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Marathon Bancorp senior executive Terry Cornish increased his stake in company stock through a series of open-market purchases. Over several days in early June 2026, he bought a total of 1,389 shares of Common Stock indirectly through a 401(k) plan at prices between $13.655 and $14.75 per share.

After these purchases, Cornish holds 27,205 shares indirectly via his 401(k), in addition to 3,003 shares held directly and 2,250 shares held through an ESOP. He also holds stock options on 4,804 shares at an exercise price of $6.48 per share and 4,498 shares at $8.13 per share, with expirations in 2033 and 2032, respectively.

Positive

  • None.

Negative

  • None.

Insights

Routine net buying by a Marathon Bancorp executive via retirement plans.

Terry Cornish, SVP and CCO of Marathon Bancorp, executed open-market purchases totaling 1,389 shares of common stock in early June 2026. Buys were made indirectly through a 401(k), with weighted-average prices roughly in the mid-teens per share.

Post-transaction, he reports 27,205 shares via the 401(k), 3,003 shares held directly, and 2,250 shares through an ESOP, plus vested and unvested options on 9,302 underlying shares at exercise prices of $6.48 and $8.13. This pattern reflects incremental accumulation rather than monetization.

The transactions are relatively small compared with his overall reported holdings and involve no sales, gifts, or tax-withholding dispositions. Subsequent company filings may provide additional context on any future changes in his equity position.

Insider Cornish Terry
Role SVP and CCO
Bought 1,389 shs ($20K)
Type Security Shares Price Value
Purchase Common Stock 219 $14.75 $3K
Purchase Common Stock 693 $14.50 $10K
Purchase Common Stock 71 $14.241 $1K
Purchase Common Stock 116 $14.2481 $2K
Purchase Common Stock 27 $13.7678 $371.73
Purchase Common Stock 263 $13.748 $4K
holding Stock Options -- -- --
holding Stock Options -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 27,205 shares (Indirect, By 401(k)); Stock Options — 4,498 shares (Direct, null); Common Stock — 3,003 shares (Direct, null)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.655 to $13.75, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.75 to $14.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.00 to $14.25, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.18 to $14.25, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (4) to this Form 4. Includes shares of restricted stock which vest at a rate of 20% per year commencing on June 28, 2023. Includes shares of restricted stock which vest at a rate of 20% per year commencing on May 16, 2024. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended. Stock options vest at a rate of 20% per year commencing on June 28, 2023. Stock options vest at a rate of 20% per year commencing on May 16, 2024.
Total shares bought 1,389 shares Net open-market purchases in early June 2026
Highest reported purchase price $14.75 per share Common Stock open-market buy on June 10, 2026
Indirect 401(k) holdings 27,205 shares Common Stock held indirectly via 401(k) after transactions
Direct common stock holdings 3,003 shares Common Stock held directly as of June 3, 2026
ESOP holdings 2,250 shares Common Stock held indirectly via ESOP as of June 3, 2026
Stock option exercise price 1 $6.48 per share Options on 4,804 underlying shares expiring May 16, 2033
Stock option exercise price 2 $8.13 per share Options on 4,498 underlying shares expiring June 28, 2032
Underlying option shares total 9,302 shares Combined underlying shares for reported stock options
open-market purchase financial
"transaction_action": "open-market purchase""
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
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.
restricted stock financial
"Includes shares of restricted stock which vest at a rate of 20% per year"
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.
Stock options financial
"Stock options vest at a rate of 20% per year"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
ESOP financial
"total_shares_following_transaction": "2250.0000", "direct_or_indirect": "I", "nature_of_ownership": "By ESOP""
An Employee Stock Ownership Plan (ESOP) is a program that gives employees ownership shares in their company, often as part of their benefits package. It acts like a company-sponsored savings plan, allowing workers to have a stake in the company's success, which can boost motivation and loyalty. For investors, ESOPs can influence company decisions and stock value, making them an important aspect of corporate ownership and governance.
Section 16 regulatory
"Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934"
Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.
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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*
Cornish Terry

(Last)(First)(Middle)
500 SCOTT STREET

(Street)
WAUSAU WISCONSIN 54403

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Marathon Bancorp, Inc. /MD/ [ MBBC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
SVP and CCO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026
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 Stock06/03/2026P263A$13.748(1)26,079IBy 401(k)
Common Stock06/04/2026P27A$13.7678(2)26,106IBy 401(k)
Common Stock06/05/2026P116A$14.2481(3)26,222IBy 401(k)
Common Stock06/08/2026P71A$14.241(4)26,293IBy 401(k)
Common Stock06/09/2026P693A$14.526,986IBy 401(k)
Common Stock06/10/2026P219A$14.7527,205IBy 401(k)
Common Stock3,003(5)(6)D
Common Stock2,250(7)IBy ESOP
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 Options$8.1306/28/202306/28/2032Common Stock4,498(8)4,498(8)D
Stock Options$6.4805/16/202405/16/2033Common Stock4,804(9)4,804(9)D
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.655 to $13.75, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.
2. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $13.75 to $14.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (2) to this Form 4.
3. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.00 to $14.25, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (3) to this Form 4.
4. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $14.18 to $14.25, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (4) to this Form 4.
5. Includes shares of restricted stock which vest at a rate of 20% per year commencing on June 28, 2023.
6. Includes shares of restricted stock which vest at a rate of 20% per year commencing on May 16, 2024.
7. Reflects transactions not required to be reported pursuant to Section 16 of the Securities Exchange Act of 1934, as amended.
8. Stock options vest at a rate of 20% per year commencing on June 28, 2023.
9. Stock options vest at a rate of 20% per year commencing on May 16, 2024.
/s/ Benjamin Azoff, pursuant to power of attorney06/11/2026
** 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)

FAQ

What did Marathon Bancorp (MBBC) executive Terry Cornish do in this Form 4?

Terry Cornish, SVP and CCO of Marathon Bancorp, bought 1,389 shares of common stock in early June 2026. These were open-market purchases made indirectly through his 401(k) plan at prices in the mid-teens per share.

How many Marathon Bancorp (MBBC) shares does Terry Cornish hold after these transactions?

After the transactions, Terry Cornish reports 27,205 Marathon Bancorp shares held through his 401(k), 3,003 shares held directly, and 2,250 shares held through an ESOP. These positions reflect his combined direct and indirect ownership in the company’s common stock.

At what prices did Terry Cornish buy Marathon Bancorp (MBBC) stock?

Cornish’s reported purchases used weighted-average prices between about $13.655 and $14.75 per share. Footnotes explain that each day’s price reflects multiple trades within specified ranges, and detailed breakdowns are available upon request from the reporting person.

Does Terry Cornish hold stock options in Marathon Bancorp (MBBC)?

Yes. Cornish holds stock options on 4,804 underlying shares at an exercise price of $6.48 and 4,498 underlying shares at $8.13. These options vest 20% per year and are scheduled to expire in 2033 and 2032, respectively, if not exercised earlier.

Were there any stock sales or only purchases by Terry Cornish in this Marathon Bancorp (MBBC) filing?

This Form 4 reports only purchases by Terry Cornish, totaling 1,389 common shares, with no sales or gifts. Additional entries simply update his holdings in direct accounts, the ESOP, and stock option awards rather than reporting new dispositions.

How are Terry Cornish’s Marathon Bancorp (MBBC) holdings structured (direct vs. indirect)?

Cornish’s holdings are split among direct and indirect accounts. He owns shares directly in his name, indirectly through a 401(k) plan, and through an ESOP. All are reported as beneficial ownership positions in Marathon Bancorp common stock and related equity awards.