OP Bancorp (OPBK)
OP Bancorp on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as state commercial banks.
141K
Short interest
settlement 2026-09-30
2.5
Days to cover
-2.2 days vs prior
50.6%
Short share of volume
2026-10-23
439
Fails to deliver
settlement 2026-09-30
Thu 21 Jan
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 OPBK is 140,670 shares, down 12,667 shares over the last month. Over the last 48 readings it ranged from 17,189 shares (15 October 2024) to 413,824 shares (15 July 2025). At the reported average volume of 56K shares a day that is 2.5 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/opbk" 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 | 140,670 | -22.4% | 55,630 | 2.53 |
| 2026-09-15 | 181,218 | +18.2% | 38,482 | 4.71 |
| 2026-08-31 | 153,337 | -8.2% | 49,650 | 3.09 |
| 2026-08-14 | 167,026 | +1.9% | 57,839 | 2.89 |
| 2026-07-31 | 163,962 | +5.2% | 48,414 | 3.39 |
| 2026-07-15 | 155,919 | -9.6% | 32,894 | 4.74 |
| 2026-06-30 | 172,541 | +35.2% | 92,973 | 1.86 |
| 2026-06-15 | 127,577 | +3.3% | 29,464 | 4.33 |
| 2026-05-29 | 123,562 | +4.3% | 27,273 | 4.53 |
| 2026-05-15 | 118,494 | -7.6% | 32,738 | 3.62 |
| 2026-04-30 | 128,208 | -8.7% | 36,118 | 3.55 |
| 2026-04-15 | 140,435 | -17.0% | 41,144 | 3.41 |
| 2026-03-31 | 169,275 | -6.8% | 41,937 | 4.04 |
| 2026-03-13 | 181,551 | -10.9% | 35,546 | 5.11 |
| 2026-02-27 | 203,726 | -3.6% | 25,112 | 8.11 |
| 2026-02-13 | 211,398 | +7.0% | 30,833 | 6.86 |
| 2026-01-30 | 197,545 | -2.7% | 39,903 | 4.95 |
| 2026-01-15 | 202,996 | -22.1% | 34,464 | 5.89 |
| 2025-12-31 | 260,565 | -7.1% | 40,953 | 6.36 |
| 2025-12-15 | 280,412 | -4.5% | 52,185 | 5.37 |
| 2025-11-28 | 293,465 | +11.2% | 34,906 | 8.41 |
| 2025-11-14 | 263,890 | -2.6% | 41,423 | 6.37 |
| 2025-10-31 | 271,045 | -8.3% | 39,387 | 6.88 |
| 2025-10-15 | 295,501 | -19.7% | 25,926 | 11.40 |
| 2025-09-30 | 367,813 | +1.1% | 46,433 | 7.92 |
| 2025-09-15 | 363,680 | -2.8% | 31,775 | 11.45 |
| 2025-08-29 | 374,255 | -0.9% | 40,247 | 9.30 |
| 2025-08-15 | 377,858 | -2.5% | 53,709 | 7.04 |
| 2025-07-31 | 387,378 | -6.4% | 78,522 | 4.93 |
| 2025-07-15 | 413,824 | +5.1% | 79,025 | 5.24 |
| 2025-06-30 | 393,785 | +751.5% | 249,412 | 1.58 |
| 2025-06-13 | 46,248 | +35.2% | 56,351 | 1.00 |
| 2025-05-30 | 34,213 | +19.9% | 52,483 | 1.00 |
| 2025-05-15 | 28,532 | +41.2% | 45,829 | 1.00 |
| 2025-04-30 | 20,213 | -18.2% | 59,019 | 1.00 |
| 2025-04-15 | 24,723 | -42.3% | 57,175 | 1.00 |
| 2025-03-31 | 42,851 | -10.2% | 37,828 | 1.13 |
| 2025-03-14 | 47,698 | +10.6% | 30,140 | 1.58 |
| 2025-02-28 | 43,119 | -4.7% | 33,163 | 1.30 |
| 2025-02-14 | 45,246 | -1.1% | 29,706 | 1.52 |
| 2025-01-31 | 45,773 | +4.7% | 34,603 | 1.32 |
| 2025-01-15 | 43,708 | +22.1% | 22,041 | 1.98 |
| 2024-12-31 | 35,798 | -23.5% | 21,752 | 1.65 |
| 2024-12-13 | 46,806 | +23.6% | 24,411 | 1.92 |
| 2024-11-29 | 37,883 | +37.6% | 29,536 | 1.28 |
| 2024-11-15 | 27,530 | +36.8% | 42,840 | 1.00 |
| 2024-10-31 | 20,122 | +17.1% | 26,407 | 1.00 |
| 2024-10-15 | 17,189 | +45.8% | 17,590 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of OPBK volume is 50.6%, up 17.3 points over the last five sessions. Over the last 30 readings it ranged from 29.6% (15 September 2026) to 73.1% (7 October 2026). The latest reading is 2.8 points above the 30-session average of 47.8%, on 11K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 6K | 11K | 50.6% | 0 |
| 2026-10-22 | 4K | 6K | 58.5% | 0 |
| 2026-10-21 | 2K | 5K | 36.0% | 0 |
| 2026-10-20 | 2K | 4K | 47.8% | 0 |
| 2026-10-19 | 4K | 8K | 52.5% | 0 |
| 2026-10-16 | 1K | 4K | 33.3% | 0 |
| 2026-10-15 | 4K | 8K | 53.3% | 0 |
| 2026-10-14 | 7K | 16K | 41.0% | 0 |
| 2026-10-13 | 5K | 7K | 69.6% | 0 |
| 2026-10-12 | 3K | 7K | 38.5% | 0 |
| 2026-10-09 | 4K | 9K | 47.3% | 0 |
| 2026-10-08 | 3K | 5K | 48.5% | 0 |
| 2026-10-07 | 6K | 8K | 73.1% | 0 |
| 2026-10-06 | 3K | 10K | 31.1% | 0 |
| 2026-10-05 | 5K | 16K | 31.8% | 0 |
| 2026-10-02 | 6K | 12K | 48.7% | 0 |
| 2026-10-01 | 6K | 14K | 43.1% | 0 |
| 2026-09-30 | 4K | 9K | 44.5% | 0 |
| 2026-09-29 | 4K | 10K | 42.6% | 0 |
| 2026-09-28 | 3K | 7K | 36.6% | 0 |
| 2026-09-25 | 4K | 10K | 40.9% | 0 |
| 2026-09-24 | 3K | 6K | 56.9% | 0 |
| 2026-09-23 | 6K | 15K | 40.9% | 0 |
| 2026-09-22 | 7K | 12K | 60.0% | 0 |
| 2026-09-21 | 5K | 17K | 31.3% | 0 |
| 2026-09-18 | 7K | 10K | 63.6% | 0 |
| 2026-09-17 | 12K | 23K | 52.6% | 0 |
| 2026-09-16 | 11K | 16K | 70.1% | 0 |
| 2026-09-15 | 4K | 14K | 29.6% | 0 |
| 2026-09-14 | 7K | 11K | 59.1% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in OPBK is 439 shares, down 2,516 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (18 May 2026) to 4,587 shares (21 May 2025). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 439 | $15.19 | $7K |
| 2026-09-28 | 2,955 | $15.18 | $45K |
| 2026-09-25 | 2,729 | $15.11 | $41K |
| 2026-09-24 | 2,756 | $14.88 | $41K |
| 2026-09-23 | 5 | $15.37 | $77 |
| 2026-09-14 | 93 | $15.36 | $1K |
| 2026-08-13 | 30 | $15.74 | $472 |
| 2026-07-27 | 1,943 | $15.66 | $30K |
| 2026-06-30 | 479 | $14.98 | $7K |
| 2026-06-26 | 356 | $14.95 | $5K |
| 2026-06-09 | 110 | $14.15 | $2K |
| 2026-05-18 | 1 | $13.66 | $14 |
| 2026-05-01 | 58 | $14.34 | $832 |
| 2026-04-02 | 256 | $13.54 | $3K |
| 2026-03-30 | 4 | $13.13 | $53 |
| 2026-02-20 | 99 | $13.96 | $1K |
| 2026-02-17 | 309 | $14.05 | $4K |
| 2026-02-04 | 181 | $14.54 | $3K |
| 2026-01-16 | 292 | $14.76 | $4K |
| 2025-12-17 | 30 | $14.79 | $444 |
| 2025-12-09 | 157 | $13.75 | $2K |
| 2025-10-31 | 188 | $13.39 | $3K |
| 2025-10-14 | 122 | $13.36 | $2K |
| 2025-09-22 | 2 | $14.73 | $29 |
| 2025-09-10 | 2,256 | $14.61 | $33K |
| 2025-09-04 | 1,036 | $14.15 | $15K |
| 2025-07-31 | 462 | $12.93 | $6K |
| 2025-07-08 | 387 | $13.56 | $5K |
| 2025-07-02 | 509 | $13.64 | $7K |
| 2025-05-21 | 4,587 | $13.07 | $60K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for OPBK in the last 90 days. The most recent filings are listed below. Latest filing: OH Sang Kyo (Chief Executive Officer) on 2026-07-01.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-07-01 | OH Sang Kyo | Chief Executive Officer | Exercise or conversion | 6K | price not stated in the filing | not stated | 51K |
| 2026-06-24 | OH Sang Kyo | Chief Executive Officer | Exercise or conversion | 9K | price not stated in the filing | not stated | 45K |
| 2026-06-12 | Oh Christine Yoon | Chief Operating Officer | Sell | 2K | $14.20 | $22K | 121K |
| 2026-06-11 | Oh Christine Yoon | Chief Operating Officer | Sell | 8K | $14.08 | $116K | 122K |
| 2026-06-10 | Oh Christine Yoon | Chief Operating Officer | Sell | 12K | $14.29 | $172K | 131K |
| 2026-06-08 | Park Jae H. | Chief Risk Officer | Tax withholding | 1K | $14.15 | $18K | 10K |
| 2026-06-08 | Park Jae H. | Chief Risk Officer | Exercise or conversion | 4K | price not stated in the filing | not stated | 12K |
| 2026-05-28 | KIM MIN | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 615K |
| 2026-05-28 | SHIN YONG SIN | Director | Exercise or conversion | 2K | price not stated in the filing | not stated | 500K |
| 2026-05-28 | Kwon Sunny | Director | Exercise or conversion | 2K | price not stated in the filing | not stated | 9K |
| 2026-05-28 | Kim Hyung J | Director | Exercise or conversion | 2K | price not stated in the filing | not stated | 9K |
| 2026-05-28 | Sohn Myung Shin | Director | Exercise or conversion | 2K | price not stated in the filing | not stated | 17K |
| 2026-05-28 | YOON KI WON | Director | Exercise or conversion | 2K | price not stated in the filing | not stated | 53K |
| 2026-05-26 | Oh Christine Yoon | Chief Operating Officer | Tax withholding | 1K | $14.11 | $18K | 143K |
| 2026-05-26 | Oh Christine Yoon | Chief Operating Officer | Exercise or conversion | 4K | price not stated in the filing | not stated | 144K |
| 2026-03-31 | Bang Jimmy M | Chief Lending Officer | Tax withholding | 326 | $13.30 | $4K | 6K |
| 2026-03-31 | Bang Jimmy M | Chief Lending Officer | Exercise or conversion | 1K | price not stated in the filing | not stated | 6K |
| 2026-03-12 | Park Jaehyun | Chief Financial Officer | Sell | 958 | $12.91 | $12K | 0 |
| 2026-03-03 | Won Wesley | Chief Technology Officer | Exercise or conversion | 1K | price not stated in the filing | not stated | 31K |
| 2026-03-03 | Won Wesley | Chief Technology Officer | Tax withholding | 542 | $13.39 | $7K | 31K |
| 2026-03-03 | Park Jaehyun | Chief Financial Officer | Tax withholding | 577 | $13.39 | $8K | 958 |
| 2026-03-03 | Park Jaehyun | Chief Financial Officer | Exercise or conversion | 2K | price not stated in the filing | not stated | 2K |
| 2026-02-24 | Bang Jimmy M | Chief Lending Officer | Exercise or conversion | 2K | price not stated in the filing | not stated | 6K |
| 2026-02-24 | Bang Jimmy M | Chief Lending Officer | Tax withholding | 699 | $13.28 | $9K | 5K |
| 2025-12-30 | Pak Yeong Gwon | Chief Credit Officer | Tax withholding | 413 | $14.24 | $6K | 870 |
| 2025-12-30 | Pak Yeong Gwon | Chief Credit Officer | Exercise or conversion | 1K | price not stated in the filing | not stated | 1K |
| 2025-11-20 | Won Wesley | Chief Technology Officer | Exercise or conversion | 392 | price not stated in the filing | not stated | 30K |
| 2025-11-20 | Oh Christine Yoon | Chief Operating Officer | Exercise or conversion | 392 | price not stated in the filing | not stated | 140K |
| 2025-06-26 | CHOI BRIAN | Director | Exercise or conversion | 5K | price not stated in the filing | not stated | 1.3M |
| 2025-06-26 | Kim Hyung J | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 7K |
| 2025-06-26 | Sohn Myung Shin | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 15K |
| 2025-06-26 | Kwon Sunny | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 7K |
| 2025-06-26 | SHIN YONG SIN | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 497K |
| 2025-06-26 | JUNG SOO HUN | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 245K |
| 2025-06-24 | OH Sang Kyo | CEO In Transit | Exercise or conversion | 9K | $12.25 | $110K | 36K |
| 2025-06-06 | Park Jae H. | Chief Risk Officer | Tax withholding | 1K | $12.34 | $16K | 8K |
| 2025-06-06 | Park Jae H. | Chief Risk Officer | Exercise or conversion | 4K | price not stated in the filing | not stated | 9K |
| 2025-05-30 | Sohn Myung Shin | Director | Buy | 1K | $12.36 | $12K | 11K |
| 2025-05-30 | Sohn Myung Shin | Director | Buy | 1K | $12.41 | $12K | 11K |
| 2025-05-27 | Oh Christine Yoon | Chief Operating Officer | Tax withholding | 1K | $12.85 | $17K | 140K |
| 2025-05-27 | Oh Christine Yoon | Chief Operating Officer | Exercise or conversion | 4K | price not stated in the filing | not stated | 141K |
| 2025-02-27 | Bang Ihnsuk Jimmy | Chief Banking Officer | Exercise or conversion | 18K | price not stated in the filing | not stated | 44K |
| 2025-02-27 | Bang Ihnsuk Jimmy | Chief Banking Officer | Tax withholding | 6K | $13.39 | $84K | 38K |
| 2025-02-24 | Oh Christine Yoon | Chief Financial Officer | Tax withholding | 4K | $13.21 | $49K | 137K |
| 2025-02-24 | Oh Christine Yoon | Chief Financial Officer | Exercise or conversion | 10K | price not stated in the filing | not stated | 140K |
| 2025-02-24 | Shin Ryan | Chief SBA Officer | Exercise or conversion | 10K | price not stated in the filing | not stated | 55K |
| 2025-02-24 | Shin Ryan | Chief SBA Officer | Tax withholding | 4K | $13.21 | $49K | 51K |
| 2025-02-24 | YOON KI WON | Chief Lending Officer | Tax withholding | 4K | $13.21 | $49K | 50K |
| 2025-02-24 | YOON KI WON | Chief Lending Officer | Exercise or conversion | 10K | price not stated in the filing | not stated | 54K |
| 2024-08-15 | YOON KI WON | Chief Lending Officer | Sell | 3K | $12.49 | $37K | 44K |
| 2024-08-14 | YOON KI WON | Chief Lending Officer | Sell | 5K | $12.18 | $61K | 47K |
| 2024-06-27 | CHOI BRIAN | Director | Exercise or conversion | 5K | price not stated in the filing | not stated | 1.3M |
| 2024-06-27 | JUNG SOO HUN | Director | Exercise or conversion | 4K | price not stated in the filing | not stated | 242K |
| 2024-06-27 | SHIN YONG SIN | Director | Exercise or conversion | 4K | price not stated in the filing | not stated | 494K |
| 2024-06-27 | Kim Hyung J | Director | Exercise or conversion | 4K | price not stated in the filing | not stated | 4K |
| 2024-06-27 | Kwon Sunny | Director | Exercise or conversion | 4K | price not stated in the filing | not stated | 4K |
| 2024-06-27 | DOW ERNEST | Director | Exercise or conversion | 4K | price not stated in the filing | not stated | 251K |
| 2024-06-24 | KIM MIN | Chief Executive Officer | Exercise or conversion | 21K | price not stated in the filing | not stated | 618K |
| 2024-06-24 | KIM MIN | Chief Executive Officer | Tax withholding | 7K | $9.45 | $65K | 611K |
| 2024-06-24 | Bang Ihnsuk Jimmy | Chief Banking Officer | Exercise or conversion | 9K | price not stated in the filing | not stated | 29K |
| 2024-06-24 | Bang Ihnsuk Jimmy | Chief Banking Officer | Tax withholding | 3K | $9.45 | $27K | 26K |
| 2024-06-24 | OH Sang Kyo | Chief Credit Officer | Exercise or conversion | 9K | price not stated in the filing | not stated | 27K |
| 2024-06-06 | Park Jae H. | Chief Risk Officer | Exercise or conversion | 4K | $0.00 | $0 | 6K |
| 2024-06-06 | Park Jae H. | Chief Risk Officer | Tax withholding | 1K | $9.75 | $12K | 5K |
| 2024-05-28 | Oh Christine Yoon | Chief Financial Officer | Tax withholding | 1K | $9.32 | $12K | 130K |
| 2024-05-28 | Oh Christine Yoon | Chief Financial Officer | Exercise or conversion | 4K | price not stated in the filing | not stated | 132K |
| 2024-04-01 | KIM MIN | Chief Executive Officer | Exercise or conversion | 60K | $8.00 | $480K | 628K |
| 2024-04-01 | KIM MIN | Chief Executive Officer | Tax withholding | 31K | $10.40 | $320K | 597K |
| 2024-02-06 | CHOI BRIAN | Director | Buy | 5K | $9.95 | $49K | 1.3M |
| 2023-12-20 | YOON KI WON | Chief Lending Officer | Exercise or conversion | 137 | price not stated in the filing | not stated | 52K |
| 2023-09-15 | YOON KI WON | Chief Lending Officer | Exercise or conversion | 20K | $6.40 | $128K | 52K |
| 2023-06-26 | Bang Ihnsuk Jimmy | Chief Banking Officer | Exercise or conversion | 9K | price not stated in the filing | not stated | 20K |
| 2023-06-26 | OH Sang Kyo | Chief Credit Officer | Exercise or conversion | 9K | price not stated in the filing | not stated | 18K |
| 2023-06-26 | KIM MIN | Chief Executive Officer | Tax withholding | 7K | $8.38 | $62K | 568K |
| 2023-06-26 | KIM MIN | Chief Executive Officer | Exercise or conversion | 21K | price not stated in the filing | not stated | 575K |
| 2023-06-22 | CHOI BRIAN | Director | Exercise or conversion | 4K | price not stated in the filing | not stated | 1.3M |
| 2023-06-22 | DOW ERNEST | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 248K |
| 2023-06-22 | JUNG SOO HUN | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 238K |
| 2023-06-22 | SHIN YONG SIN | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 490K |
| 2023-06-22 | PARK MYUNG | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 58K |
| 2023-06-22 | KIM OCK HEE | Director | Exercise or conversion | 3K | price not stated in the filing | not stated | 611K |
| 2023-06-14 | SHIN YONG SIN | Director | Buy | 6K | $8.50 | $55K | 488K |
| 2023-06-07 | CHOI BRIAN | Director | Buy | 4K | $8.85 | $40K | 1.3M |
| 2023-06-06 | CHOI BRIAN | Director | Buy | 510 | $8.79 | $4K | 1.3M |
| 2023-06-06 | Park Jae H. | Chief Risk Officer | Exercise or conversion | 4K | $0.00 | $0 | 4K |
| 2023-06-06 | Park Jae H. | Chief Risk Officer | Tax withholding | 1K | $8.85 | $12K | 3K |
| 2023-06-02 | CHOI BRIAN | Director | Buy | 7K | $8.16 | $60K | 1.3M |
| 2023-05-19 | CHOI BRIAN | Director | Sell | 1K | $7.88 | $11K | 1.3M |
| 2023-05-18 | CHOI BRIAN | Director | Sell | 10K | $8.00 | $80K | 1.3M |
| 2023-03-20 | KIM MIN | Chief Executive Officer | Exercise or conversion | 20K | $8.00 | $160K | 554K |
| 2023-03-15 | JUNG SOO HUN | Director | Buy | 3K | $9.24 | $28K | 235K |
| 2023-03-13 | CHOI BRIAN | Director | Buy | 23K | $9.82 | $221K | 1.3M |
| 2023-03-10 | CHOI BRIAN | Director | Buy | 8K | $10.37 | $78K | 1.3M |
| 2023-03-10 | KIM MIN | Chief Executive Officer | Exercise or conversion | 70K | $8.00 | $560K | 534K |
| 2023-02-08 | CHOI BRIAN | Director | Buy | 2K | $11.65 | $25K | 1.3M |
| 2023-02-07 | CHOI BRIAN | Director | Buy | 8K | $11.82 | $89K | 1.3M |
| 2023-02-06 | CHOI BRIAN | Director | Buy | 15K | $11.81 | $177K | 1.2M |
| 2023-02-03 | CHOI BRIAN | Director | Buy | 5K | $11.58 | $58K | 1.2M |
| 2023-02-01 | CHOI BRIAN | Director | Buy | 5K | $11.31 | $57K | 1.2M |
| 2023-01-31 | CHOI BRIAN | Director | Buy | 5K | $11.38 | $57K | 1.2M |
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.
Planned sales (Form 144)
Newest first. JSON1 Form 144 notice on file for OPBK worth $357K at the prices reported; 0 in the last 90 days worth $0. Latest: Oh Christine Yoon filed on 2026-06-10 to sell 25,000 shares ($357K) from 2026-06-10.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-06-10 | Oh Christine YoonOfficer | 25K | $357K | 0.168% | 2026-06-10 | Stifel Nicolaus & Company Inc |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of OPBK in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 5.5% of the class (825,500 shares), filed 2026-07-29 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-07-29 | 13G | BlackRock, Inc.parent holding company | 826K | 5.5% | 2026-06-30 |
| 2025-11-14 | 13G/Ano. 2 | AllianceBernstein L.P.investment adviser | 684K | 4.6% | 2025-09-30 |
13F holders
Tracked managers holding OPBK at their latest 13F. JSON5 of the 30 tracked managers held OPBK at their latest 13F, $3.2M in total at quarter-end prices. Renaissance Technologies is the largest at $1.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 74K | $1.1M | 0.00% | -11K |
| Citadel Advisors | 2026-06-30 | 62K | $929K | 0.00% | +19K |
| Two Sigma Investments | 2026-06-30 | 43K | $644K | 0.00% | +12K |
| AQR Capital Management | 2026-06-30 | 19K | $291K | 0.00% | new |
| Millennium Management | 2026-06-30 | 14K | $214K | 0.00% | +311 |
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
OP 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 OP Bancorp (OPBK), SEC CIK 1722010, listed on Nasdaq, classified by the SEC as state commercial banks. 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 2026-09-30.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-06-10.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 2026-07-29.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 2026-10-22.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 2026-07-01.JSON and CSV
- Company record
- EDGAR filing index for CIK 1722010Ticker, 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 OPBK is sold short?
140,670 shares were held short at the 2026-09-30 settlement, 2.5 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 OPBK's daily short volume?
On 2026-10-23, 5,751 of the 11,371 OPBK shares reported to FINRA were sold short, 50.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does OPBK have fails to deliver?
The SEC's latest file shows 439 OPBK shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.
Are OPBK insiders buying or selling?
No open-market insider trades were reported for OPBK in the last 90 days. The most recent filings are listed below. Latest filing: OH Sang Kyo (Chief Executive Officer) on 2026-07-01.
Have OPBK insiders filed to sell?
1 Form 144 notice on file for OPBK worth $357K at the prices reported; 0 in the last 90 days worth $0. Latest: Oh Christine Yoon filed on 2026-06-10 to sell 25,000 shares ($357K) from 2026-06-10.
Who owns 5% or more of OPBK?
1 holder reports 5% or more of OPBK in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 5.5% of the class (825,500 shares), filed 2026-07-29 for an event on 2026-06-30.
Which tracked 13F managers own OPBK?
5 of the 30 tracked 13F managers held OPBK shares at their latest filing, $3.2M in all. The largest: Renaissance Technologies (74K shares, $1.1M), Ken Griffin's Citadel Advisors (62K shares, $929K), Two Sigma Investments (43K shares, $644K), Cliff Asness's AQR Capital Management (19K shares, $291K), Izzy Englander's Millennium Management (14K shares, $214K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.