Marathon Bancorp (MBBC)
Marathon Bancorp on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, financials and insider trades. Listed on Nasdaq, classified by the SEC as savings institutions, not federally chartered.
7K
Short interest
settlement 2026-09-30
1.5
Days to cover
-0.5 days vs prior
100.0%
Short share of volume
2026-10-23
38
Fails to deliver
settlement 2026-09-22
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in MBBC is 6,940 shares, up 276 shares over the last month. Over the last 48 readings it ranged from 7 shares (15 November 2023) to 19,146 shares (15 July 2025). At the reported average volume of 5K shares a day that is 1.5 days to cover.
Embed this chart.The embed keeps its attribution line.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 6,940 | +8.3% | 4,748 | 1.46 |
| 2026-09-15 | 6,405 | -3.9% | 3,255 | 1.97 |
| 2026-08-31 | 6,664 | -12.6% | 1,470 | 4.53 |
| 2026-08-14 | 7,620 | -17.3% | 3,049 | 2.50 |
| 2026-07-31 | 9,208 | -6.5% | 973 | 9.46 |
| 2026-07-15 | 9,847 | +13.3% | 2,757 | 3.57 |
| 2026-06-30 | 8,688 | -4.8% | 12,367 | 1.00 |
| 2026-06-15 | 9,127 | +167.3% | 30,127 | 1.00 |
| 2026-05-29 | 3,415 | -43.6% | 12,796 | 1.00 |
| 2026-05-15 | 6,056 | -52.1% | 20,372 | 1.00 |
| 2026-04-30 | 12,640 | +49.5% | 7,866 | 1.61 |
| 2026-04-15 | 8,457 | +62.3% | 17,274 | 1.00 |
| 2026-03-31 | 5,211 | +18.9% | 1,064 | 4.90 |
| 2026-03-13 | 4,383 | -27.7% | 1,432 | 3.06 |
| 2026-02-27 | 6,060 | +18.2% | 2,248 | 2.70 |
| 2026-02-13 | 5,127 | -3.9% | 626 | 8.19 |
| 2026-01-30 | 5,333 | -11.4% | 3,149 | 1.69 |
| 2026-01-15 | 6,018 | +20.9% | 2,412 | 2.50 |
| 2025-12-31 | 4,976 | +45.6% | 2,251 | 2.21 |
| 2025-12-15 | 3,417 | -19.1% | 3,835 | 1.00 |
| 2025-11-28 | 4,223 | +11.8% | 10,394 | 1.00 |
| 2025-11-14 | 3,778 | +93.0% | 4,865 | 1.00 |
| 2025-10-31 | 1,957 | -58.0% | 2,584 | 1.00 |
| 2025-10-15 | 4,664 | -50.9% | 4,160 | 1.12 |
| 2025-09-30 | 9,492 | +9.8% | 3,817 | 2.49 |
| 2025-09-15 | 8,641 | -5.2% | 4,224 | 2.05 |
| 2025-08-29 | 9,118 | -37.9% | 4,730 | 1.93 |
| 2025-08-15 | 14,693 | -9.2% | 2,700 | 5.44 |
| 2025-07-31 | 16,189 | -15.4% | 3,466 | 4.67 |
| 2025-07-15 | 19,146 | +9.4% | 4,137 | 4.63 |
| 2025-06-30 | 17,508 | +202.4% | 16,170 | 1.08 |
| 2025-06-13 | 5,790 | +223.8% | 4,321 | 1.34 |
| 2025-05-30 | 1,788 | -23.0% | 8,091 | 1.00 |
| 2025-05-15 | 2,321 | +1359.8% | 12,602 | 1.00 |
| 2025-04-30 | 159 | +100.0% | 14,877 | 1.00 |
| 2025-02-28 | 115 | -73.7% | 793 | 1.00 |
| 2025-02-14 | 438 | +100.0% | 2,817 | 1.00 |
| 2024-09-30 | 85 | -70.2% | 264 | 1.00 |
| 2024-09-13 | 285 | +100.0% | 244 | 1.17 |
| 2024-03-28 | 27 | +0.0% | 33 | 1.00 |
| 2024-03-15 | 27 | +0.0% | 146 | 1.00 |
| 2024-02-29 | 27 | -78.7% | 467 | 1.00 |
| 2024-02-15 | 127 | +27.0% | 9 | 14.11 |
| 2024-01-31 | 100 | -77.4% | 1,350 | 1.00 |
| 2023-12-29 | 452 | +28.4% | 587 | 1.00 |
| 2023-12-15 | 352 | +4928.6% | 1,618 | 1.00 |
| 2023-11-30 | 7 | +0.0% | 3,948 | 1.00 |
| 2023-11-15 | 7 | +100.0% | 1,584 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of MBBC volume is 100.0%, up 55.3 points over the last five sessions. Over the last 30 readings it ranged from 0.3% (13 October 2026) to 100.0% (14 October 2026). The latest reading sits at the top of that range. The latest reading is 60.9 points above the 30-session average of 39.1%, on 106 shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 106 | 106 | 100.0% | 0 |
| 2026-10-22 | 105 | 827 | 12.7% | 0 |
| 2026-10-21 | 9 | 13 | 69.2% | 0 |
| 2026-10-20 | 8 | 669 | 1.2% | 0 |
| 2026-10-19 | 14 | 986 | 1.4% | 0 |
| 2026-10-16 | 21 | 47 | 44.7% | 0 |
| 2026-10-15 | 85 | 2K | 3.6% | 0 |
| 2026-10-14 | 6 | 6 | 100.0% | 0 |
| 2026-10-13 | 6 | 2K | 0.3% | 0 |
| 2026-10-12 | 1K | 1K | 97.7% | 0 |
| 2026-10-09 | 515 | 518 | 99.4% | 0 |
| 2026-10-08 | 210 | 214 | 98.1% | 0 |
| 2026-10-07 | 13 | 2K | 0.8% | 0 |
| 2026-10-06 | 21 | 38 | 55.3% | 0 |
| 2026-10-05 | 19 | 3K | 0.7% | 0 |
| 2026-10-02 | 198 | 978 | 20.3% | 0 |
| 2026-10-01 | 5 | 762 | 0.7% | 0 |
| 2026-09-30 | 313 | 317 | 98.7% | 0 |
| 2026-09-29 | 285 | 2K | 11.4% | 0 |
| 2026-09-28 | 523 | 582 | 89.9% | 0 |
| 2026-09-25 | 1K | 3K | 44.1% | 0 |
| 2026-09-24 | 1K | 2K | 48.0% | 0 |
| 2026-09-23 | 222 | 831 | 26.7% | 0 |
| 2026-09-22 | 630 | 2K | 34.5% | 0 |
| 2026-09-21 | 5 | 331 | 1.5% | 0 |
| 2026-09-18 | 62 | 3K | 2.1% | 0 |
| 2026-09-17 | 1K | 2K | 69.2% | 0 |
| 2026-09-16 | 21 | 549 | 3.8% | 0 |
| 2026-09-15 | 827 | 7K | 12.0% | 0 |
| 2026-09-14 | 175 | 674 | 26.0% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 22 September 2026, the fails-to-deliver balance in MBBC is 38 shares, down 6 shares over the last settlement date. Over the last 30 readings it ranged from 3 shares (6 August 2026) to 16,592 shares (27 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-22 | 38 | $15.07 | $573 |
| 2026-09-17 | 44 | $15.01 | $660 |
| 2026-08-27 | 200 | $15.16 | $3K |
| 2026-08-26 | 200 | $15.27 | $3K |
| 2026-08-18 | 11 | $15.00 | $165 |
| 2026-08-17 | 11 | $15.26 | $168 |
| 2026-08-06 | 3 | $15.29 | $46 |
| 2026-07-28 | 73 | $15.20 | $1K |
| 2026-06-30 | 36 | $15.40 | $554 |
| 2026-06-29 | 328 | $15.49 | $5K |
| 2026-06-26 | 1,236 | $15.15 | $19K |
| 2026-06-22 | 313 | $15.31 | $5K |
| 2026-06-18 | 247 | $15.05 | $4K |
| 2026-06-17 | 112 | $14.98 | $2K |
| 2026-06-12 | 92 | $14.31 | $1K |
| 2026-05-27 | 16,592 | $13.68 | $227K |
| 2026-05-13 | 754 | $15.13 | $11K |
| 2026-05-11 | 27 | $15.30 | $413 |
| 2026-05-08 | 6 | $14.53 | $87 |
| 2026-04-24 | 662 | $14.25 | $9K |
| 2026-03-31 | 10 | $14.14 | $141 |
| 2026-03-30 | 10 | $14.14 | $141 |
| 2025-11-12 | 195 | $10.75 | $2K |
| 2025-11-04 | 193 | $10.99 | $2K |
| 2025-08-26 | 36 | $10.38 | $374 |
| 2025-08-19 | 774 | $10.06 | $8K |
| 2025-08-15 | 105 | $10.13 | $1K |
| 2025-08-14 | 105 | $10.13 | $1K |
| 2025-08-08 | 70 | $10.01 | $701 |
| 2025-07-24 | 880 | $10.05 | $9K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for MBBC in the last 90 days. The most recent filings are listed below. Latest filing: Spatz Nora (EVP and CAO) on 2026-09-18.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | Spatz Nora | EVP and CAO | Exercise or conversion | 962 | $6.48 | $6K | 29K |
| 2026-09-18 | Spatz Nora | EVP and CAO | Exercise or conversion | 1K | $8.13 | $10K | 28K |
| 2026-06-28 | Selting-Buchberger Joy | SVP and CFO | Tax withholding | 522 | $15.49 | $8K | 5K |
| 2026-06-28 | Spatz Nora | EVP and CAO | Tax withholding | 503 | $15.49 | $8K | 27K |
| 2026-06-28 | Zillges Nicholas W | President and CEO | Tax withholding | 1K | $15.49 | $20K | 56K |
| 2026-06-28 | Knopf Michelle | EVP and COO | Tax withholding | 225 | $15.49 | $3K | 9K |
| 2026-06-28 | Cornish Terry | SVP and CCO | Tax withholding | 247 | $15.49 | $4K | 6K |
| 2026-06-16 | Zillges Nicholas W | President and CEO | Buy | 970 | $15.00 | $15K | 57K |
| 2026-06-15 | Spatz Nora | EVP and CAO | Grant | 6K | $0.00 | $0 | 28K |
| 2026-06-15 | Zillges Nicholas W | President and CEO | Grant | 17K | $0.00 | $0 | 56K |
| 2026-06-15 | Knopf Michelle | EVP and COO | Grant | 5K | $0.00 | $0 | 9K |
| 2026-06-15 | Cornish Terry | SVP and CCO | Grant | 4K | $0.00 | $0 | 7K |
| 2026-06-15 | Zientara Amy | Director,Other | Grant | 3K | $0.00 | $0 | 27K |
| 2026-06-15 | Grimm Thomas L | Director | Grant | 3K | $0.00 | $0 | 6K |
| 2026-06-15 | Wimmer Timothy R | Director | Grant | 3K | $0.00 | $0 | 6K |
| 2026-06-15 | Werth Ann M | Director | Grant | 3K | $0.00 | $0 | 9K |
| 2026-06-10 | Zillges Nicholas W | President and CEO | Buy | 170 | $14.75 | $3K | 51K |
| 2026-06-10 | Spatz Nora | EVP and CAO | Buy | 602 | $14.75 | $9K | 40K |
| 2026-06-10 | Knopf Michelle | EVP and COO | Buy | 164 | $14.75 | $2K | 19K |
| 2026-06-10 | Cornish Terry | SVP and CCO | Buy | 219 | $14.75 | $3K | 27K |
| 2026-06-09 | Zillges Nicholas W | President and CEO | Buy | 537 | $14.50 | $8K | 51K |
| 2026-06-09 | Spatz Nora | EVP and CAO | Buy | 2K | $14.50 | $28K | 39K |
| 2026-06-09 | Knopf Michelle | EVP and COO | Buy | 519 | $14.50 | $8K | 19K |
| 2026-06-09 | Cornish Terry | SVP and CCO | Buy | 693 | $14.50 | $10K | 27K |
| 2026-06-08 | Zillges Nicholas W | President and CEO | Buy | 55 | $14.24 | $783 | 50K |
| 2026-06-08 | Spatz Nora | EVP and CAO | Buy | 197 | $14.24 | $3K | 37K |
| 2026-06-08 | Knopf Michelle | EVP and COO | Buy | 54 | $14.24 | $769 | 19K |
| 2026-06-08 | Cornish Terry | SVP and CCO | Buy | 71 | $14.24 | $1K | 26K |
| 2026-06-05 | Zillges Nicholas W | President and CEO | Buy | 90 | $14.25 | $1K | 50K |
| 2026-06-05 | Spatz Nora | EVP and CAO | Buy | 320 | $14.25 | $5K | 37K |
| 2026-06-05 | Knopf Michelle | EVP and COO | Buy | 87 | $14.25 | $1K | 19K |
| 2026-06-05 | Cornish Terry | SVP and CCO | Buy | 116 | $14.25 | $2K | 26K |
| 2026-06-04 | Zillges Nicholas W | President and CEO | Buy | 21 | $13.77 | $289 | 50K |
| 2026-06-04 | Spatz Nora | EVP and CAO | Buy | 74 | $13.77 | $1K | 34K |
| 2026-06-04 | Knopf Michelle | EVP and COO | Buy | 20 | $13.77 | $275 | 19K |
| 2026-06-04 | Cornish Terry | SVP and CCO | Buy | 27 | $13.77 | $372 | 26K |
| 2026-06-03 | Zientara Amy | Director, Chairwoman of the Board | Exercise or conversion | 899 | $6.48 | $6K | 24K |
| 2026-06-03 | Zientara Amy | Director, Chairwoman of the Board | Exercise or conversion | 4K | $8.13 | $29K | 23K |
| 2026-06-03 | Spatz Nora | EVP and CAO | Exercise or conversion | 1K | $8.13 | $10K | 21K |
| 2026-06-03 | Zillges Nicholas W | President and CEO | Exercise or conversion | 2K | $6.48 | $10K | 39K |
| 2026-06-03 | Wimmer Timothy R | Director | Exercise or conversion | 899 | $6.48 | $6K | 14K |
| 2026-06-03 | Wimmer Timothy R | Director | Exercise or conversion | 4K | $8.13 | $29K | 13K |
| 2026-06-03 | Grimm Thomas L | Director | Exercise or conversion | 300 | $6.48 | $2K | 22K |
| 2026-06-03 | Zillges Nicholas W | President and CEO | Buy | 203 | $13.75 | $3K | 50K |
| 2026-06-03 | Spatz Nora | EVP and CAO | Buy | 722 | $13.75 | $10K | 36K |
| 2026-06-03 | Knopf Michelle | EVP and COO | Buy | 197 | $13.75 | $3K | 18K |
| 2026-06-03 | Cornish Terry | SVP and CCO | Buy | 263 | $13.75 | $4K | 26K |
| 2026-05-16 | Selting-Buchberger Joy | SVP and CFO | Tax withholding | 56 | $14.50 | $812 | 5K |
| 2026-05-16 | Spatz Nora | EVP and CAO | Tax withholding | 30 | $14.50 | $435 | 20K |
| 2026-05-16 | Knopf Michelle | EVP and COO | Tax withholding | 86 | $14.50 | $1K | 3K |
| 2026-05-16 | Cornish Terry | SVP and CCO | Tax withholding | 41 | $14.50 | $595 | 3K |
| 2026-05-05 | Werth Ann M | Director | Exercise or conversion | 599 | $6.48 | $4K | 5K |
| 2026-05-05 | Werth Ann M | Director | Exercise or conversion | 899 | $8.13 | $7K | 5K |
| 2026-03-20 | Grimm Thomas L | Director | Exercise or conversion | 599 | $6.48 | $4K | 22K |
| 2026-03-20 | Grimm Thomas L | Director | Exercise or conversion | 4K | $8.13 | $29K | 21K |
| 2026-03-18 | Spatz Nora | EVP and CAO | Exercise or conversion | 2K | $6.48 | $12K | 20K |
| 2026-03-18 | Spatz Nora | EVP and CAO | Exercise or conversion | 2K | $8.13 | $20K | 18K |
| 2026-02-23 | Zillges Nicholas W | President and CEO | Exercise or conversion | 3K | $6.48 | $19K | 38K |
| 2025-12-02 | Spatz Nora | EVP and CAO | Discretionary trade | 45 | $11.30 | $509 | 36K |
| 2025-12-02 | Spatz Nora | EVP and CAO | Discretionary trade | 1K | $11.11 | $14K | 36K |
| 2025-12-02 | Zillges Nicholas W | President and CEO | Discretionary trade | 24 | $11.30 | $271 | 50K |
| 2025-12-02 | Zillges Nicholas W | President and CEO | Discretionary trade | 634 | $11.11 | $7K | 50K |
| 2025-12-02 | Knopf Michelle | EVP and COO | Discretionary trade | 20 | $11.30 | $226 | 18K |
| 2025-12-02 | Knopf Michelle | EVP and COO | Discretionary trade | 536 | $11.11 | $6K | 18K |
| 2025-12-01 | Spatz Nora | EVP and CAO | Discretionary trade | 3K | $11.27 | $36K | 34K |
| 2025-12-01 | Zillges Nicholas W | President and CEO | Discretionary trade | 2K | $11.27 | $19K | 49K |
| 2025-12-01 | Knopf Michelle | EVP and COO | Discretionary trade | 1K | $11.27 | $16K | 18K |
| 2025-11-26 | Zillges Nicholas W | President and CEO | Buy | 1K | $11.37 | $12K | 35K |
| 2025-11-13 | Zillges Nicholas W | President and CEO | Buy | 1K | $11.00 | $15K | 34K |
| 2025-06-28 | Zillges Nicholas W | President and CEO | Tax withholding | 1K | $9.99 | $12K | 32K |
| 2025-06-28 | Selting-Buchberger Joy | SVP and CFO | Tax withholding | 517 | $9.99 | $5K | 5K |
| 2025-06-28 | Spatz Nora | EVP and CAO | Tax withholding | 451 | $9.99 | $5K | 16K |
| 2025-06-28 | Zillges Nicholas W | President and CEO | Tax withholding | 1K | $9.99 | $12K | 32K |
| 2025-06-28 | Knopf Michelle | EVP and COO | Tax withholding | 197 | $9.99 | $2K | 3K |
| 2025-06-28 | Cornish Terry | SVP and CCO | Tax withholding | 225 | $9.99 | $2K | 3K |
| 2025-06-13 | Zillges Nicholas W | President and CEO | Buy | 500 | $9.99 | $5K | 34K |
| 2025-05-29 | Spatz Nora | EVP and CAO | Discretionary trade | 992 | $10.01 | $10K | 31K |
| 2025-05-29 | Zillges Nicholas W | President and CEO | Discretionary trade | 695 | $10.01 | $7K | 48K |
| 2025-05-16 | Zillges Nicholas W | President and CEO | Buy | 500 | $10.07 | $5K | 33K |
| 2025-05-16 | Selting-Buchberger Joy | SVP and CFO | Tax withholding | 44 | $10.03 | $441 | 6K |
| 2025-05-16 | Spatz Nora | EVP and CAO | Tax withholding | 29 | $10.03 | $291 | 16K |
| 2025-05-16 | Knopf Michelle | EVP and COO | Tax withholding | 70 | $10.03 | $702 | 4K |
| 2025-05-16 | Cornish Terry | SVP and CCO | Tax withholding | 38 | $10.03 | $381 | 3K |
| 2025-04-21 | Zillges Nicholas W | President and CEO | Grant | 7K | $10.00 | $65K | 33K |
| 2025-04-21 | Zillges Nicholas W | President and CEO | Grant | 4K | $10.00 | $35K | 47K |
| 2025-04-21 | Spatz Nora | EVP and CAO | Grant | 600 | $10.00 | $6K | 1K |
| 2025-04-21 | Spatz Nora | EVP and CAO | Grant | 5K | $10.00 | $50K | 30K |
| 2025-04-21 | Spatz Nora | EVP and CAO | Grant | 500 | $10.00 | $5K | 2K |
| 2025-04-21 | Knopf Michelle | EVP and COO | Grant | 3K | $10.00 | $33K | 16K |
| 2025-04-21 | Selting-Buchberger Joy | SVP and CFO | Grant | 5K | $10.00 | $50K | 22K |
| 2025-04-21 | Cornish Terry | SVP and CCO | Grant | 3K | $10.00 | $25K | 26K |
| 2025-04-21 | Grimm Thomas L | Director | Grant | 8K | $10.00 | $75K | 18K |
| 2025-04-21 | Werth Ann M | Director | Grant | 550 | $10.00 | $6K | 4K |
| 2025-04-21 | Wimmer Timothy R | Director | Grant | 3K | $10.00 | $25K | 9K |
| 2025-04-21 | Zientara Amy | Director,Other | Grant | 3K | $10.00 | $25K | 19K |
| 2024-06-28 | Cornish Terry | SVP and CCO | Tax withholding | 125 | $8.99 | $1K | 2K |
| 2024-06-28 | Spatz Nora | EVP and CAO | Tax withholding | 288 | $8.99 | $3K | 12K |
| 2024-06-28 | Zillges Nicholas W | President and CEO | Tax withholding | 823 | $8.99 | $7K | 19K |
| 2024-06-28 | Selting-Buchberger Joy | SVP and CFO | Tax withholding | 268 | $8.99 | $2K | 4K |
| 2024-06-28 | Knopf Michelle | EVP and COO | Tax withholding | 127 | $8.99 | $1K | 3K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON2 holders report 5% or more of MBBC in their latest filing, all on Schedule 13G (passive). The largest reported stake is Marathon Bank 401(k) Plan Trust at 7.3% of the class (216,071 shares), filed 2026-07-01 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-07-01 | 13G/Ano. 1 | Marathon Bank 401(k) Plan Trustemployee benefit plan | 216K | 7.3% | 2026-06-30 |
| 2026-02-17 | 13G | AllianceBernstein L.P.investment adviser | 153K | 5.2% | 2025-12-31 |
13F holders
Tracked managers holding MBBC at their latest 13F. JSON1 of the 30 tracked managers held MBBC at their latest 13F, $168K in total at quarter-end prices. Citadel Advisors is the largest at $168K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 0 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Citadel Advisors | 2026-06-30 | 11K | $168K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn FY 2025 it generated $1.4M of operating cash flow and spent $82K on buybacks.
- Equity
- $47.5M
- Total assets
- $249.0M
- Shares outstanding
- 2,950,746
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q3 FY 2026 | 2026-03-31 | n/a | $488K | n/a | 0.18 |
| Q2 FY 2026 | 2025-12-31 | n/a | $501K | n/a | 0.19 |
| Q1 FY 2026 | 2025-09-30 | n/a | $444K | n/a | 0.17 |
| Q4 FY 2025derived | 2025-06-30 | n/a | -$332K | n/a | n/a |
| Q3 FY 2025 | 2025-03-31 | n/a | $148K | n/a | 0.05 |
| Q2 FY 2025 | 2024-12-31 | n/a | $51K | n/a | 0.02 |
| Q1 FY 2025 | 2024-09-30 | n/a | $175K | n/a | 0.06 |
| Q4 FY 2024derived | 2024-06-30 | n/a | $86K | n/a | n/a |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-06-30 | n/a | $42K | $1.4M | $179K | $82K | n/a |
| FY 2024 | 2024-06-30 | n/a | -$187K | $417K | $2.3M | $156K | n/a |
| FY 2023 | 2023-06-30 | n/a | $1.7M | $2.0M | $65K | n/a | n/a |
| FY 2022 | 2022-06-30 | n/a | $1.3M | $826K | $34K | n/a | n/a |
| FY 2021 | 2021-06-30 | n/a | $1.4M | $1.0M | $88K | n/a | n/a |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-03-31; shares outstanding as of 2026-05-12 from the cover page.
What this page is
Marathon Bancorp in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Marathon Bancorp (MBBC), SEC CIK 1835385, listed on Nasdaq, classified by the SEC as savings institutions, not federally chartered. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-22.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-07-01.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-03-31.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-18.JSON and CSV
- Company record
- EDGAR filing index for CIK 1835385Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as savings institutions, not federally chartered
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Frequently Asked Questions
How much of MBBC is sold short?
What is MBBC's daily short volume?
Does MBBC have fails to deliver?
Are MBBC insiders buying or selling?
Who owns 5% or more of MBBC?
What did MBBC report last quarter?
Which tracked 13F managers own MBBC?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.