Medallion Financial (MFIN)
Medallion Financial on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as finance services.
873K
Short interest
settlement 2026-09-30
10.5
Days to cover
-7.6 days vs prior
53.3%
Short share of volume
2026-10-23
130
Fails to deliver
settlement 2026-09-18
Wed 28 Oct
Next earnings
estimated date
$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 MFIN is 873,286 shares, down 26,346 shares over the last month. Over the last 48 readings it ranged from 778,852 shares (27 February 2026) to 1,179,845 shares (15 October 2024). At the reported average volume of 83K shares a day that is 10.5 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/mfin" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 873,286 | -8.5% | 82,916 | 10.53 |
| 2026-09-15 | 954,272 | +6.1% | 52,565 | 18.15 |
| 2026-08-31 | 899,632 | -1.4% | 74,015 | 12.15 |
| 2026-08-14 | 912,276 | +0.4% | 100,238 | 9.10 |
| 2026-07-31 | 908,743 | +3.3% | 32,557 | 27.91 |
| 2026-07-15 | 880,139 | -3.2% | 39,491 | 22.29 |
| 2026-06-30 | 908,838 | +8.8% | 170,729 | 5.32 |
| 2026-06-15 | 835,214 | +2.4% | 98,092 | 8.51 |
| 2026-05-29 | 815,713 | +2.3% | 50,493 | 16.15 |
| 2026-05-15 | 797,594 | -0.3% | 75,112 | 10.62 |
| 2026-04-30 | 800,236 | +1.4% | 54,442 | 14.70 |
| 2026-04-15 | 789,368 | -2.2% | 48,235 | 16.37 |
| 2026-03-31 | 807,415 | -1.7% | 77,877 | 10.37 |
| 2026-03-13 | 821,497 | +5.5% | 63,510 | 12.93 |
| 2026-02-27 | 778,852 | -4.4% | 57,558 | 13.53 |
| 2026-02-13 | 814,570 | -0.5% | 40,179 | 20.27 |
| 2026-01-30 | 818,780 | -3.9% | 46,445 | 17.63 |
| 2026-01-15 | 851,814 | +0.7% | 34,996 | 24.34 |
| 2025-12-31 | 846,246 | -4.9% | 43,202 | 19.59 |
| 2025-12-15 | 889,484 | -2.3% | 41,593 | 21.39 |
| 2025-11-28 | 910,015 | +1.1% | 46,897 | 19.40 |
| 2025-11-14 | 900,530 | -0.0% | 37,292 | 24.15 |
| 2025-10-31 | 900,650 | +0.5% | 40,084 | 22.47 |
| 2025-10-15 | 896,105 | +0.8% | 32,705 | 27.40 |
| 2025-09-30 | 889,337 | -4.9% | 59,612 | 14.92 |
| 2025-09-15 | 935,566 | +3.4% | 34,509 | 27.11 |
| 2025-08-29 | 905,027 | -4.7% | 37,938 | 23.86 |
| 2025-08-15 | 949,768 | -0.9% | 68,660 | 13.83 |
| 2025-07-31 | 958,679 | +2.2% | 72,532 | 13.22 |
| 2025-07-15 | 938,413 | -0.6% | 47,977 | 19.56 |
| 2025-06-30 | 944,300 | -0.9% | 88,427 | 10.68 |
| 2025-06-13 | 952,606 | +3.8% | 34,996 | 27.22 |
| 2025-05-30 | 917,895 | -0.6% | 34,765 | 26.40 |
| 2025-05-15 | 923,852 | +3.3% | 48,148 | 19.19 |
| 2025-04-30 | 894,457 | +1.4% | 48,779 | 18.34 |
| 2025-04-15 | 881,724 | -2.5% | 40,051 | 22.02 |
| 2025-03-31 | 904,544 | -0.9% | 38,849 | 23.28 |
| 2025-03-14 | 912,790 | +1.1% | 51,673 | 17.66 |
| 2025-02-28 | 902,474 | +0.8% | 49,453 | 18.25 |
| 2025-02-14 | 895,315 | -4.2% | 33,111 | 27.04 |
| 2025-01-31 | 934,528 | -4.2% | 46,334 | 20.17 |
| 2025-01-15 | 975,120 | +0.5% | 40,537 | 24.06 |
| 2024-12-31 | 970,646 | -1.6% | 56,964 | 17.04 |
| 2024-12-13 | 985,953 | -2.4% | 91,147 | 10.82 |
| 2024-11-29 | 1,009,816 | -3.6% | 51,783 | 19.50 |
| 2024-11-15 | 1,047,089 | -4.0% | 56,803 | 18.43 |
| 2024-10-31 | 1,090,207 | -7.6% | 52,609 | 20.72 |
| 2024-10-15 | 1,179,845 | -1.0% | 39,098 | 30.18 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of MFIN volume is 53.3%, up 14.0 points over the last five sessions. Over the last 30 readings it ranged from 16.2% (5 October 2026) to 75.2% (18 September 2026). The latest reading is 7.7 points above the 30-session average of 45.6%, on 15K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 8K | 15K | 53.3% | 0 |
| 2026-10-22 | 3K | 9K | 32.4% | 0 |
| 2026-10-21 | 3K | 6K | 48.6% | 0 |
| 2026-10-20 | 6K | 11K | 52.6% | 0 |
| 2026-10-19 | 10K | 23K | 43.7% | 0 |
| 2026-10-16 | 4K | 10K | 39.3% | 0 |
| 2026-10-15 | 4K | 11K | 36.9% | 0 |
| 2026-10-14 | 8K | 24K | 33.4% | 0 |
| 2026-10-13 | 6K | 13K | 50.0% | 0 |
| 2026-10-12 | 3K | 9K | 33.4% | 0 |
| 2026-10-09 | 7K | 13K | 50.6% | 206 |
| 2026-10-08 | 2K | 9K | 28.2% | 0 |
| 2026-10-07 | 12K | 26K | 46.5% | 0 |
| 2026-10-06 | 4K | 9K | 41.4% | 0 |
| 2026-10-05 | 6K | 37K | 16.2% | 0 |
| 2026-10-02 | 11K | 20K | 54.3% | 0 |
| 2026-10-01 | 7K | 13K | 52.3% | 0 |
| 2026-09-30 | 6K | 15K | 39.5% | 0 |
| 2026-09-29 | 20K | 40K | 51.2% | 600 |
| 2026-09-28 | 9K | 13K | 67.2% | 0 |
| 2026-09-25 | 8K | 18K | 43.3% | 0 |
| 2026-09-24 | 13K | 31K | 42.7% | 0 |
| 2026-09-23 | 28K | 78K | 36.0% | 0 |
| 2026-09-22 | 4K | 15K | 23.9% | 0 |
| 2026-09-21 | 6K | 21K | 29.8% | 10 |
| 2026-09-18 | 10K | 13K | 75.2% | 0 |
| 2026-09-17 | 10K | 14K | 69.5% | 0 |
| 2026-09-16 | 17K | 28K | 59.9% | 776 |
| 2026-09-15 | 14K | 19K | 73.4% | 0 |
| 2026-09-14 | 7K | 17K | 43.4% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 18 September 2026, the fails-to-deliver balance in MFIN is 130 shares, down 6,360 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (15 June 2026) to 147,254 shares (17 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-18 | 130 | $11.88 | $2K |
| 2026-09-17 | 6,490 | $11.84 | $77K |
| 2026-09-11 | 20 | $12.13 | $243 |
| 2026-09-10 | 25,000 | $12.11 | $303K |
| 2026-08-28 | 8,500 | $11.81 | $100K |
| 2026-08-14 | 367 | $11.43 | $4K |
| 2026-08-13 | 548 | $11.20 | $6K |
| 2026-08-12 | 1,364 | $11.03 | $15K |
| 2026-08-11 | 42,466 | $10.85 | $461K |
| 2026-08-10 | 316 | $10.90 | $3K |
| 2026-08-06 | 1,995 | $10.79 | $22K |
| 2026-08-05 | 110 | $10.90 | $1K |
| 2026-08-04 | 851 | $10.60 | $9K |
| 2026-07-27 | 6,332 | $9.77 | $62K |
| 2026-07-16 | 472 | $10.06 | $5K |
| 2026-07-07 | 312 | $10.04 | $3K |
| 2026-07-01 | 203 | $10.21 | $2K |
| 2026-06-30 | 1,121 | $10.30 | $12K |
| 2026-06-29 | 23,249 | $10.30 | $239K |
| 2026-06-26 | 285 | $9.97 | $3K |
| 2026-06-25 | 257 | $9.95 | $3K |
| 2026-06-24 | 210 | $9.66 | $2K |
| 2026-06-17 | 147,254 | $9.87 | $1.5M |
| 2026-06-16 | 385 | $9.85 | $4K |
| 2026-06-15 | 1 | $9.81 | $10 |
| 2026-06-11 | 50,031 | $9.90 | $495K |
| 2026-05-14 | 3 | $9.37 | $28 |
| 2026-05-13 | 3,696 | $9.28 | $34K |
| 2026-05-06 | 19 | $9.27 | $176 |
| 2026-04-30 | 343 | $9.26 | $3K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for MFIN in the last 90 days. The most recent filings are listed below. Latest filing: Poulton Donald S. (See Remarks) on 2026-06-25.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-06-25 | Poulton Donald S. | See Remarks | Tax withholding | 41K | $9.97 | $406K | 278K |
| 2026-03-10 | MURSTEIN ANDREW | See Remarks | Tax withholding | 165K | $9.59 | $1.6M | 971K |
| 2026-03-10 | MURSTEIN ANDREW | See Remarks | Grant | 324K | $0.00 | $0 | 1.1M |
| 2026-03-10 | Poulton Donald S. | See Remarks | Tax withholding | 45K | $9.59 | $428K | 319K |
| 2026-03-10 | Poulton Donald S. | See Remarks | Grant | 102K | $0.00 | $0 | 364K |
| 2026-03-10 | MURSTEIN ALVIN | See Remarks | Tax withholding | 37K | $9.59 | $353K | 330K |
| 2026-03-10 | MURSTEIN ALVIN | See Remarks | Grant | 72K | $0.00 | $0 | 367K |
| 2026-03-10 | Haley David Justin | See Remarks | Tax withholding | 17K | $9.59 | $165K | 152K |
| 2026-03-10 | Haley David Justin | See Remarks | Grant | 39K | $0.00 | $0 | 170K |
| 2026-03-10 | Cutrone Anthony N. | Chief Financial Officer | Tax withholding | 42K | $9.59 | $399K | 145K |
| 2026-03-10 | Cutrone Anthony N. | Chief Financial Officer | Grant | 85K | $0.00 | $0 | 186K |
| 2026-03-01 | Rudnick Jeffrey D. | Executive Vice President | Tax withholding | 3K | $10.09 | $33K | 25K |
| 2026-03-01 | Rozovsky Samantha K. | See Remarks | Tax withholding | 2K | $10.09 | $20K | 21K |
| 2026-03-01 | MURSTEIN ANDREW | See Remarks | Tax withholding | 52K | $10.09 | $523K | 813K |
| 2026-03-01 | Munson Thomas J. | See Remarks | Tax withholding | 6K | $10.09 | $62K | 62K |
| 2026-03-01 | Poulton Donald S. | See Remarks | Tax withholding | 15K | $10.09 | $151K | 262K |
| 2026-03-01 | Silverman Marisa T. | See Remarks | Tax withholding | 14K | $10.09 | $137K | 92K |
| 2026-03-01 | MURSTEIN ALVIN | See Remarks | Tax withholding | 12K | $10.09 | $121K | 295K |
| 2026-03-01 | Haley David Justin | See Remarks | Tax withholding | 8K | $10.09 | $79K | 131K |
| 2026-03-01 | Cutrone Anthony N. | Chief Financial Officer | Tax withholding | 14K | $10.09 | $141K | 102K |
| 2026-02-10 | Rudnick Jeffrey D. | Executive Vice President | Grant | 5K | $0.00 | $0 | 28K |
| 2026-02-10 | MURSTEIN ALVIN | See Remarks | Grant | 40K | $0.00 | $0 | 307K |
| 2026-02-10 | Munson Thomas J. | See Remarks | Grant | 10K | $0.00 | $0 | 68K |
| 2026-02-10 | MURSTEIN ANDREW | See Remarks | Grant | 77K | $0.00 | $0 | 864K |
| 2026-02-10 | Silverman Marisa T. | See Remarks | Grant | 19K | $0.00 | $0 | 106K |
| 2026-02-10 | Rozovsky Samantha K. | See Remarks | Grant | 9K | $0.00 | $0 | 23K |
| 2026-02-10 | Poulton Donald S. | See Remarks | Grant | 59K | $0.00 | $0 | 277K |
| 2026-02-10 | Haley David Justin | See Remarks | Grant | 26K | $0.00 | $0 | 138K |
| 2026-02-10 | Cutrone Anthony N. | Chief Financial Officer | Grant | 24K | $0.00 | $0 | 116K |
| 2025-09-10 | Haley David Justin | See Remarks | Exercise or conversion | 13K | $6.68 | $89K | 112K |
| 2025-09-10 | Haley David Justin | See Remarks | Exercise or conversion | 5K | $6.55 | $34K | 99K |
| 2025-06-06 | Haley David Justin | See Remarks | Exercise or conversion | 850 | $6.55 | $6K | 94K |
| 2025-05-08 | RUDNICK DAVID L | Director | Exercise or conversion | 12K | $5.58 | $67K | 234K |
| 2025-05-05 | Haley David Justin | See Remarks | Exercise or conversion | 800 | $6.55 | $5K | 93K |
| 2025-03-04 | Silverman Marisa T. | See Remarks | Tax withholding | 712 | $8.17 | $6K | 86K |
| 2025-03-04 | Munson Thomas J. | See Remarks | Tax withholding | 501 | $8.17 | $4K | 58K |
| 2025-03-04 | Haley David Justin | See Remarks | Tax withholding | 679 | $8.17 | $6K | 92K |
| 2025-03-04 | MURSTEIN ANDREW | President | Tax withholding | 8K | $8.17 | $62K | 787K |
| 2025-03-04 | Poulton Donald S. | See Remarks | Tax withholding | 2K | $8.17 | $18K | 218K |
| 2025-03-04 | MURSTEIN ALVIN | See Remarks | Tax withholding | 2K | $8.17 | $17K | 267K |
| 2025-03-01 | Cutrone Anthony N. | Chief Financial Officer | Tax withholding | 12K | $8.34 | $104K | 91K |
| 2025-03-01 | Silverman Marisa T. | See Remarks | Tax withholding | 12K | $8.34 | $98K | 87K |
| 2025-03-01 | MURSTEIN ANDREW | President | Tax withholding | 62K | $8.34 | $521K | 795K |
| 2025-03-01 | Munson Thomas J. | See Remarks | Tax withholding | 6K | $8.34 | $49K | 59K |
| 2025-03-01 | MURSTEIN ALVIN | See Remarks | Tax withholding | 15K | $8.34 | $128K | 269K |
| 2025-03-01 | Haley David Justin | See Remarks | Tax withholding | 6K | $8.34 | $51K | 93K |
| 2025-03-01 | Poulton Donald S. | See Remarks | Tax withholding | 17K | $8.34 | $139K | 220K |
| 2025-02-13 | MURSTEIN ALVIN | See Remarks | Grant | 24K | $0.00 | $0 | 285K |
| 2025-02-13 | Poulton Donald S. | See Remarks | Grant | 35K | $0.00 | $0 | 237K |
| 2025-02-13 | MURSTEIN ANDREW | President | Grant | 94K | $0.00 | $0 | 857K |
| 2025-02-13 | Cutrone Anthony N. | Chief Financial Officer | Grant | 29K | $0.00 | $0 | 104K |
| 2025-02-13 | Munson Thomas J. | See Remarks | Grant | 12K | $0.00 | $0 | 65K |
| 2025-02-13 | Silverman Marisa T. | See Remarks | Grant | 24K | $0.00 | $0 | 99K |
| 2025-02-13 | Haley David Justin | See Remarks | Grant | 21K | $0.00 | $0 | 99K |
| 2024-09-10 | Cutrone Anthony N. | Chief Financial Officer | Buy | 500 | $7.50 | $4K | 3K |
| 2024-09-10 | Cutrone Anthony N. | Chief Financial Officer | Buy | 1K | $7.50 | $8K | 72K |
| 2024-09-06 | Cutrone Anthony N. | Chief Financial Officer | Buy | 2K | $7.53 | $15K | 2K |
| 2024-09-06 | Cutrone Anthony N. | Chief Financial Officer | Buy | 2K | $7.52 | $15K | 71K |
| 2024-09-05 | Haley David Justin | See Remarks | Exercise or conversion | 610 | $6.55 | $4K | 78K |
| 2024-08-07 | Haley David Justin | See Remarks | Exercise or conversion | 600 | $6.55 | $4K | 78K |
| 2024-05-06 | Haley David Justin | See Remarks | Exercise or conversion | 650 | $6.55 | $4K | 77K |
| 2024-03-04 | MURSTEIN ALVIN | See Remarks | Tax withholding | 2K | $8.18 | $17K | 261K |
| 2024-03-04 | MURSTEIN ANDREW | President | Tax withholding | 8K | $8.18 | $62K | 763K |
| 2024-03-04 | Poulton Donald S. | See Remarks | Tax withholding | 2K | $8.18 | $18K | 202K |
| 2024-03-04 | Munson Thomas J. | See Remarks | Tax withholding | 501 | $8.18 | $4K | 49K |
| 2024-03-04 | Silverman Marisa T. | See Remarks | Tax withholding | 713 | $8.18 | $6K | 75K |
| 2024-03-01 | MURSTEIN ALVIN | See Remarks | Tax withholding | 12K | $7.98 | $92K | 263K |
| 2024-03-01 | MURSTEIN ANDREW | President | Tax withholding | 46K | $7.98 | $363K | 770K |
| 2024-03-01 | Cutrone Anthony N. | Chief Financial Officer | Tax withholding | 9K | $7.98 | $75K | 69K |
| 2024-03-01 | Poulton Donald S. | See Remarks | Tax withholding | 12K | $7.98 | $95K | 204K |
| 2024-03-01 | Haley David Justin | See Remarks | Exercise or conversion | 1K | $6.55 | $7K | 77K |
| 2024-03-01 | Munson Thomas J. | See Remarks | Tax withholding | 4K | $7.98 | $31K | 50K |
| 2024-03-01 | Silverman Marisa T. | See Remarks | Tax withholding | 7K | $7.98 | $57K | 76K |
| 2024-02-17 | MURSTEIN ALVIN | See Remarks | Tax withholding | 2K | $8.97 | $21K | 275K |
| 2024-02-17 | MURSTEIN ANDREW | President | Tax withholding | 9K | $8.97 | $76K | 816K |
| 2024-02-17 | Poulton Donald S. | See Remarks | Tax withholding | 2K | $8.97 | $17K | 216K |
| 2024-02-17 | Munson Thomas J. | See Remarks | Tax withholding | 509 | $8.97 | $5K | 54K |
| 2024-02-17 | Silverman Marisa T. | See Remarks | Tax withholding | 724 | $8.97 | $6K | 83K |
| 2024-02-16 | MURSTEIN ALVIN | See Remarks | Grant | 22K | $8.97 | $199K | 277K |
| 2024-02-16 | MURSTEIN ANDREW | President | Grant | 100K | $8.97 | $894K | 824K |
| 2024-02-16 | Cutrone Anthony N. | Chief Financial Officer | Grant | 27K | $8.97 | $246K | 78K |
| 2024-02-16 | Poulton Donald S. | See Remarks | Grant | 33K | $8.97 | $295K | 218K |
| 2024-02-16 | Haley David Justin | See Remarks | Grant | 19K | $8.97 | $175K | 76K |
| 2024-02-16 | Munson Thomas J. | See Remarks | Grant | 12K | $8.97 | $105K | 54K |
| 2024-02-16 | Silverman Marisa T. | See Remarks | Grant | 25K | $8.97 | $225K | 84K |
| 2023-09-13 | Haley David Justin | See Remarks | Exercise or conversion | 270 | $6.55 | $2K | 56K |
| 2023-03-04 | MURSTEIN ALVIN | See Remarks | Tax withholding | 2K | $8.47 | $18K | 255K |
| 2023-03-04 | MURSTEIN ANDREW | President | Tax withholding | 8K | $8.47 | $64K | 725K |
| 2023-03-04 | Poulton Donald S. | See Remarks | Tax withholding | 2K | $8.47 | $19K | 185K |
| 2023-03-04 | Haley David Justin | See Remarks | Tax withholding | 814 | $8.47 | $7K | 56K |
| 2023-03-04 | Munson Thomas J. | See Remarks | Tax withholding | 501 | $8.47 | $4K | 43K |
| 2023-03-04 | Silverman Marisa T. | See Remarks | Tax withholding | 715 | $8.47 | $6K | 59K |
| 2023-03-01 | MURSTEIN ALVIN | See Remarks | Tax withholding | 7K | $8.49 | $62K | 257K |
| 2023-03-01 | MURSTEIN ANDREW | President | Tax withholding | 27K | $8.49 | $227K | 732K |
| 2023-03-01 | Cutrone Anthony N. | Chief Financial Officer | Tax withholding | 4K | $8.49 | $38K | 51K |
| 2023-03-01 | Poulton Donald S. | See Remarks | Tax withholding | 7K | $8.49 | $58K | 187K |
| 2023-03-01 | Haley David Justin | See Remarks | Tax withholding | 2K | $8.49 | $21K | 57K |
| 2023-03-01 | Munson Thomas J. | See Remarks | Tax withholding | 2K | $8.49 | $15K | 43K |
| 2023-03-01 | Silverman Marisa T. | See Remarks | Tax withholding | 3K | $8.49 | $21K | 59K |
| 2023-02-17 | MURSTEIN ALVIN | See Remarks | Tax withholding | 2K | $7.93 | $19K | 264K |
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. JSON1 holder reports 5% or more of MFIN in its latest filing, on Schedule 13G (passive). The holder is Andrew M. Murstein at 11.7% of the class (2,801,776 shares), filed 2026-04-06 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-06 | 13G/Ano. 24 | Andrew M. Mursteinindividual | 2.8M | 11.7% | 2026-03-31 |
13F holders
Tracked managers holding MFIN at their latest 13F. JSON3 of the 30 tracked managers held MFIN at their latest 13F, $869K in total at quarter-end prices. Two Sigma Investments is the largest at $407K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 2 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 40K | $407K | 0.00% | -59K |
| Citadel Advisors | 2026-06-30 | 28K | $282K | 0.00% | new |
| AQR Capital Management | 2026-06-30 | 18K | $179K | 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.
What this page is
Medallion Financial 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 Medallion Financial (MFIN), SEC CIK 1000209, listed on Nasdaq, classified by the SEC as finance services. 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 2026-09-18.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 2026-04-06.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
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-07-29.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 2026-06-25.JSON and CSV
- Company record
- EDGAR filing index for CIK 1000209Ticker, 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.
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Frequently Asked Questions
How much of MFIN is sold short?
873,286 shares were held short at the 2026-09-30 settlement, 10.5 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is MFIN's daily short volume?
On 2026-10-23, 8,167 of the 15,320 MFIN shares reported to FINRA were sold short, 53.3% of the day's reported volume. Short volume is a flow for one day, not a position.
Does MFIN have fails to deliver?
The SEC's latest file shows 130 MFIN shares failed to deliver at settlement 2026-09-18. Fails are reported per settlement date and published twice a month with a lag.
Are MFIN insiders buying or selling?
No open-market insider trades were reported for MFIN in the last 90 days. The most recent filings are listed below. Latest filing: Poulton Donald S. (See Remarks) on 2026-06-25.
Who owns 5% or more of MFIN?
1 holder reports 5% or more of MFIN in its latest filing, on Schedule 13G (passive). The holder is Andrew M. Murstein at 11.7% of the class (2,801,776 shares), filed 2026-04-06 for an event on 2026-03-31.
Which tracked 13F managers own MFIN?
3 of the 30 tracked 13F managers held MFIN shares at their latest filing, $869K in all. The largest: Two Sigma Investments (40K shares, $407K), Ken Griffin's Citadel Advisors (28K shares, $282K), Cliff Asness's AQR Capital Management (18K shares, $179K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.