MBBC
Cornish Terry, MBBC's SVP and CCO, spent $3.2K of their own money on 219 shares at $15, growing their stake 1%.
+$3.2K
219 sh @ $15
MBBC
Marathon Bancorp, Inc. /MD/
SEC CIK 1835385
$14.29
+10.4% · 90 days
90-day buys
$102.6K
19 open-market
90-day sells
$0
0 open-market
Net insider flow
+$102.6K
Net buying
Filings shown
19
Most recent
Advertisement
At a glance
Over the last 90 days, insiders at MBBC have bought a net $102.6K of stock (19 open-market buys vs 0 sells).
Largest recent trade: Spatz Nora, MBBC's EVP and CAO, spent $27.6K of their own money on 1,904 shares at $15, growing their stake 5%.
Most active filer: Spatz Nora, with 6 transactions among the recent filings shown.
Insider transaction history
Form 4 filings for MBBC, newest firstMBBC
Knopf Michelle, MBBC's COO, spent $2.4K of their own money on 164 shares at $15, growing their stake 1%.
+$2.4K
164 sh @ $15
MBBC
Zillges Nicholas W, MBBC's CEO, spent $2.5K of their own money on 170 shares at $15.
+$2.5K
170 sh @ $15
MBBC
Spatz Nora, MBBC's EVP and CAO, spent $8.9K of their own money on 602 shares at $15, growing their stake 2%.
+$8.9K
602 sh @ $15
MBBC
Cornish Terry, MBBC's SVP and CCO, spent $10K of their own money on 693 shares at $15, growing their stake 3%.
+$10K
693 sh @ $15
Advertisement
MBBC
Knopf Michelle, MBBC's COO, spent $7.5K of their own money on 519 shares at $15, growing their stake 3%.
+$7.5K
519 sh @ $15
MBBC
Zillges Nicholas W, MBBC's CEO, spent $7.8K of their own money on 537 shares at $15, growing their stake 1%.
+$7.8K
537 sh @ $15
MBBC
Spatz Nora, MBBC's EVP and CAO, spent $27.6K of their own money on 1,904 shares at $15, growing their stake 5%.
+$27.6K
1,904 sh @ $15
MBBC
Cornish Terry, MBBC's SVP and CCO, spent $1K of their own money on 71 shares at $14.
+$1K
71 sh @ $14
MBBC
Spatz Nora, MBBC's EVP and CAO, spent $2.8K of their own money on 197 shares at $14, growing their stake 1%.
+$2.8K
197 sh @ $14
MBBC
Cornish Terry, MBBC's SVP and CCO, spent $1.7K of their own money on 116 shares at $14.
+$1.7K
116 sh @ $14
MBBC
Knopf Michelle, MBBC's COO, spent $1.2K of their own money on 87 shares at $14.
+$1.2K
87 sh @ $14
MBBC
Zillges Nicholas W, MBBC's CEO, spent $1.3K of their own money on 90 shares at $14.
+$1.3K
90 sh @ $14
MBBC
Spatz Nora, MBBC's EVP and CAO, spent $4.6K of their own money on 320 shares at $14, growing their stake 1%.
+$4.6K
320 sh @ $14
MBBC
Spatz Nora, MBBC's EVP and CAO, spent $1K of their own money on 74 shares at $14.
+$1K
74 sh @ $14
MBBC
Cornish Terry, MBBC's SVP and CCO, spent $3.6K of their own money on 263 shares at $14, growing their stake 1%.
+$3.6K
263 sh @ $14
MBBC
Knopf Michelle, MBBC's COO, spent $2.7K of their own money on 197 shares at $14, growing their stake 1%.
+$2.7K
197 sh @ $14
MBBC
Zillges Nicholas W, MBBC's CEO, spent $2.8K of their own money on 203 shares at $14.
+$2.8K
203 sh @ $14
MBBC
Spatz Nora, MBBC's EVP and CAO, spent $9.9K of their own money on 722 shares at $14, growing their stake 2%.
+$9.9K
722 sh @ $14
Advertisement
About MBBC insider activity
This page tracks every recent Form 4 filed for Marathon Bancorp, Inc. /MD/ with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.
The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.
Frequently asked questions
How often is MBBC insider data updated?
Continuously. We read from SEC EDGAR, so new Form 4 filings for Marathon Bancorp, Inc. /MD/ usually appear here within minutes of being accepted by the SEC.
What does "net insider flow" mean?
It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.
Why do some rows show grants or option exercises instead of buys?
Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.
Is this investment advice?
No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.