Corbus Pharmaceuticals Holdings (CRBP)
Corbus Pharmaceuticals Holdings 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 pharmaceutical preparations.
3.1M
Short interest
settlement 2026-09-30
3.9
Days to cover
+2.3 days vs prior
44.6%
Short share of volume
2026-10-23
183
Fails to deliver
settlement 2026-09-24
Wed 11 Nov
Next earnings
estimated date
-$283K
Insider flow, 90 days
1 buys, 3 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 CRBP is 3,054,964 shares, up 808,966 shares over the last month. Over the last 48 readings it ranged from 963,874 shares (14 November 2025) to 3,054,964 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 791K shares a day that is 3.9 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 3,054,964 | +10.7% | 791,386 | 3.86 |
| 2026-09-15 | 2,759,255 | +22.9% | 1,790,115 | 1.54 |
| 2026-08-31 | 2,245,998 | +4.6% | 611,617 | 3.67 |
| 2026-08-14 | 2,147,752 | -6.6% | 355,454 | 6.04 |
| 2026-07-31 | 2,299,491 | +9.7% | 245,178 | 9.38 |
| 2026-07-15 | 2,096,262 | +7.8% | 355,484 | 5.90 |
| 2026-06-30 | 1,945,058 | +23.1% | 571,496 | 3.40 |
| 2026-06-15 | 1,579,519 | +3.3% | 465,281 | 3.39 |
| 2026-05-29 | 1,529,200 | +27.9% | 1,067,338 | 1.43 |
| 2026-05-15 | 1,195,855 | -15.1% | 306,697 | 3.90 |
| 2026-04-30 | 1,407,889 | +4.8% | 305,242 | 4.61 |
| 2026-04-15 | 1,344,041 | +10.9% | 219,122 | 6.13 |
| 2026-03-31 | 1,211,398 | -8.7% | 192,295 | 6.30 |
| 2026-03-13 | 1,326,487 | +0.8% | 255,418 | 5.19 |
| 2026-02-27 | 1,316,296 | +0.5% | 164,424 | 8.01 |
| 2026-02-13 | 1,310,064 | -2.2% | 145,001 | 9.03 |
| 2026-01-30 | 1,339,090 | +1.9% | 159,856 | 8.38 |
| 2026-01-15 | 1,314,291 | -0.0% | 185,336 | 7.09 |
| 2025-12-31 | 1,314,390 | +2.0% | 238,951 | 5.50 |
| 2025-12-15 | 1,288,419 | +26.6% | 632,337 | 2.04 |
| 2025-11-28 | 1,017,749 | +5.6% | 274,516 | 3.71 |
| 2025-11-14 | 963,874 | -8.2% | 517,205 | 1.86 |
| 2025-10-31 | 1,049,695 | +6.4% | 686,172 | 1.53 |
| 2025-10-15 | 986,251 | -15.8% | 261,659 | 3.77 |
| 2025-09-30 | 1,171,805 | -2.0% | 195,253 | 6.00 |
| 2025-09-15 | 1,196,113 | +3.0% | 74,587 | 16.04 |
| 2025-08-29 | 1,161,301 | -4.2% | 102,719 | 11.31 |
| 2025-08-15 | 1,211,977 | -2.4% | 97,295 | 12.46 |
| 2025-07-31 | 1,241,493 | -9.7% | 128,179 | 9.69 |
| 2025-07-15 | 1,374,766 | -10.9% | 150,413 | 9.14 |
| 2025-06-30 | 1,542,527 | -17.5% | 274,355 | 5.62 |
| 2025-06-13 | 1,869,343 | +2.0% | 147,250 | 12.70 |
| 2025-05-30 | 1,831,897 | -2.9% | 111,175 | 16.48 |
| 2025-05-15 | 1,886,628 | +2.2% | 117,988 | 15.99 |
| 2025-04-30 | 1,845,784 | -13.7% | 163,171 | 11.31 |
| 2025-04-15 | 2,138,207 | -13.5% | 197,735 | 10.81 |
| 2025-03-31 | 2,472,120 | +0.1% | 238,523 | 10.36 |
| 2025-03-14 | 2,470,124 | +1.7% | 190,718 | 12.95 |
| 2025-02-28 | 2,429,393 | -0.5% | 234,150 | 10.38 |
| 2025-02-14 | 2,440,680 | +5.2% | 352,559 | 6.92 |
| 2025-01-31 | 2,321,110 | -3.2% | 231,064 | 10.05 |
| 2025-01-15 | 2,397,367 | -0.6% | 168,166 | 14.26 |
| 2024-12-31 | 2,410,825 | -9.0% | 342,855 | 7.03 |
| 2024-12-13 | 2,649,948 | +5.8% | 312,575 | 8.48 |
| 2024-11-29 | 2,505,572 | +4.3% | 213,112 | 11.76 |
| 2024-11-15 | 2,401,638 | +0.9% | 381,845 | 6.29 |
| 2024-10-31 | 2,379,194 | -13.5% | 355,601 | 6.69 |
| 2024-10-15 | 2,749,452 | +5.7% | 512,598 | 5.36 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of CRBP volume is 44.6%, down 24.7 points over the last five sessions. Over the last 30 readings it ranged from 9.7% (12 October 2026) to 79.1% (17 September 2026). The latest reading is 3.8 points below the 30-session average of 48.4%, on 156K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 70K | 156K | 44.6% | 0 |
| 2026-10-22 | 170K | 592K | 28.8% | 0 |
| 2026-10-21 | 150K | 303K | 49.6% | 0 |
| 2026-10-20 | 72K | 197K | 36.4% | 0 |
| 2026-10-19 | 86K | 257K | 33.4% | 0 |
| 2026-10-16 | 335K | 484K | 69.3% | 2,660 |
| 2026-10-15 | 139K | 472K | 29.5% | 99 |
| 2026-10-14 | 153K | 548K | 28.0% | 446 |
| 2026-10-13 | 105K | 278K | 37.6% | 0 |
| 2026-10-12 | 58K | 601K | 9.7% | 2 |
| 2026-10-09 | 112K | 387K | 28.9% | 2 |
| 2026-10-08 | 260K | 582K | 44.7% | 872 |
| 2026-10-07 | 130K | 383K | 34.0% | 167 |
| 2026-10-06 | 183K | 356K | 51.3% | 393 |
| 2026-10-05 | 144K | 325K | 44.2% | 0 |
| 2026-10-02 | 191K | 376K | 50.8% | 6,600 |
| 2026-10-01 | 169K | 337K | 50.3% | 813 |
| 2026-09-30 | 134K | 215K | 62.2% | 10,724 |
| 2026-09-29 | 173K | 337K | 51.3% | 1,789 |
| 2026-09-28 | 187K | 380K | 49.2% | 4,970 |
| 2026-09-25 | 165K | 266K | 62.3% | 0 |
| 2026-09-24 | 160K | 278K | 57.5% | 0 |
| 2026-09-23 | 281K | 373K | 75.3% | 0 |
| 2026-09-22 | 82K | 168K | 49.0% | 0 |
| 2026-09-21 | 98K | 170K | 57.8% | 1,304 |
| 2026-09-18 | 321K | 446K | 71.9% | 1,592 |
| 2026-09-17 | 373K | 471K | 79.1% | 0 |
| 2026-09-16 | 380K | 624K | 61.0% | 42,144 |
| 2026-09-15 | 1.0M | 2.3M | 43.6% | 112,877 |
| 2026-09-14 | 1.0M | 1.7M | 60.1% | 5,373 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 24 September 2026, the fails-to-deliver balance in CRBP is 183 shares, down 151 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (25 August 2026) to 3,897 shares (17 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-24 | 183 | $7.74 | $1K |
| 2026-09-23 | 334 | $7.88 | $3K |
| 2026-09-22 | 57 | $7.65 | $436 |
| 2026-09-18 | 333 | $7.26 | $2K |
| 2026-09-17 | 431 | $7.26 | $3K |
| 2026-09-11 | 421 | $8.24 | $3K |
| 2026-09-02 | 58 | $11.28 | $654 |
| 2026-08-27 | 55 | $11.30 | $622 |
| 2026-08-25 | 1 | $10.69 | $11 |
| 2026-08-24 | 130 | $10.38 | $1K |
| 2026-08-21 | 2,526 | $9.84 | $25K |
| 2026-08-19 | 72 | $10.08 | $726 |
| 2026-08-17 | 3,897 | $10.09 | $39K |
| 2026-08-12 | 201 | $9.51 | $2K |
| 2026-08-11 | 44 | $9.46 | $416 |
| 2026-08-06 | 1,600 | $9.57 | $15K |
| 2026-08-03 | 1,438 | $8.97 | $13K |
| 2026-07-28 | 318 | $9.08 | $3K |
| 2026-06-30 | 3,440 | $8.98 | $31K |
| 2026-06-29 | 6 | $8.74 | $52 |
| 2026-06-23 | 685 | $8.31 | $6K |
| 2026-06-22 | 2,750 | $8.26 | $23K |
| 2026-06-18 | 3,126 | $8.05 | $25K |
| 2026-06-17 | 3,552 | $7.88 | $28K |
| 2026-06-15 | 616 | $8.19 | $5K |
| 2026-05-29 | 1,866 | $7.64 | $14K |
| 2026-05-22 | 812 | $11.51 | $9K |
| 2026-05-14 | 50 | $12.15 | $608 |
| 2026-04-22 | 53 | $10.30 | $546 |
| 2026-04-06 | 833 | $10.17 | $8K |
Insider trades
SEC Form 4, newest first. JSONOver the last 90 days CRBP insiders reported 1 open-market buy ($25K) against 3 sells ($308K), so the dollar flow leans toward selling. Latest filing: Ben Yong (Director) on 2026-09-14.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | Ben Yong | Director | Sell | 2K | $7.84 | $16K | 9K |
| 2026-08-16 | Nicacio Leonardo Viana | Chief Medical Officer | Grant | 58K | $0.00 | $0 | 58K |
| 2026-08-11 | Saxena Nishant C | Chief Business Officer | Buy | 3K | $9.63 | $25K | 78K |
| 2026-08-07 | Moran Sean F. | Chief Financial Officer | Sell | 12K | $10.08 | $121K | 85K |
| 2026-08-07 | Cohen Yuval | Chief Executive Officer | Sell | 17K | $10.08 | $171K | 157K |
| 2026-06-10 | Kung Winston | Director | Sell | 2K | $7.91 | $16K | 12K |
| 2026-06-10 | Jenkins John Kenneth | Director | Sell | 5K | $7.91 | $38K | 4K |
| 2026-06-10 | Altmeyer Anne | Director | Sell | 2K | $7.91 | $19K | 8K |
| 2026-06-03 | Saxena Nishant C | Chief Business Officer | Buy | 9K | $7.58 | $68K | 75K |
| 2026-06-02 | Saxena Nishant C | Chief Business Officer | Buy | 5K | $7.33 | $33K | 66K |
| 2026-05-21 | Saxena Nishant C | Chief Business Officer | Grant | 58K | $0.00 | $0 | 62K |
| 2026-05-19 | Kung Winston | Director | Grant | 4K | $0.00 | $0 | 14K |
| 2026-05-19 | Jacques Rachelle Suzanne | Director | Grant | 4K | $0.00 | $0 | 11K |
| 2026-05-19 | Jenkins John Kenneth | Director | Grant | 4K | $0.00 | $0 | 9K |
| 2026-05-19 | Pfeiffenberger Brent | Director | Grant | 8K | $0.00 | $0 | 8K |
| 2026-05-19 | Ben Yong | Director | Grant | 4K | $0.00 | $0 | 11K |
| 2026-05-19 | Altmeyer Anne | Director | Grant | 4K | $0.00 | $0 | 10K |
| 2026-03-02 | Smethurst Dominic | Chief Medical Officer | Sell | 6K | $8.30 | $51K | 90K |
| 2026-02-17 | Hodgson Ian | Chief Operating Officer | Sell | 847 | $7.38 | $6K | 51K |
| 2026-02-13 | Moran Sean F. | Chief Financial Officer | Sell | 5K | $7.78 | $37K | 97K |
| 2026-02-13 | Cohen Yuval | Chief Executive Officer | Sell | 14K | $7.78 | $108K | 174K |
| 2026-02-03 | Smethurst Dominic | Chief Medical Officer | Sell | 3K | $8.09 | $27K | 96K |
| 2026-02-03 | Hodgson Ian | Chief Operating Officer | Sell | 2K | $8.09 | $20K | 52K |
| 2026-01-14 | Hodgson Ian | Chief Operating Officer | Grant | 28K | $0.00 | $0 | 54K |
| 2026-01-14 | Smethurst Dominic | Chief Medical Officer | Grant | 28K | $0.00 | $0 | 99K |
| 2026-01-14 | Moran Sean F. | Chief Financial Officer | Grant | 28K | $0.00 | $0 | 101K |
| 2026-01-14 | Cohen Yuval | Chief Executive Officer | Grant | 50K | $0.00 | $0 | 188K |
| 2025-12-11 | Chen Bihua | TenPercentOwner | Sell | 30K | $11.46 | $344K | 2.3M |
| 2025-12-11 | Cormorant Asset Management, LP | 10% owner | Sell | 30K | $11.46 | $344K | 2.3M |
| 2025-10-27 | Cohen Yuval | Chief Executive Officer | Sell | 9K | $17.14 | $154K | 138K |
| 2025-10-27 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 9K | $4.26 | $38K | 147K |
| 2025-10-24 | Moran Sean F. | Chief Financial Officer | Sell | 13K | $17.02 | $221K | 73K |
| 2025-10-24 | Moran Sean F. | Chief Financial Officer | Exercise or conversion | 13K | $4.26 | $55K | 86K |
| 2025-10-24 | Cohen Yuval | Chief Executive Officer | Sell | 19K | $17.01 | $317K | 138K |
| 2025-10-24 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 19K | $4.26 | $79K | 157K |
| 2025-10-20 | Altmeyer Anne | Director | Sell | 1K | $20.50 | $22K | 6K |
| 2025-10-20 | Altmeyer Anne | Director | Exercise or conversion | 1K | $4.80 | $5K | 7K |
| 2025-05-30 | Jacques Rachelle Suzanne | Director | Grant | 5K | $0.00 | $0 | 8K |
| 2025-05-30 | HOLMER ALAN F | Director | Grant | 5K | $0.00 | $0 | 11K |
| 2025-05-30 | Altmeyer Anne | Director | Grant | 5K | $0.00 | $0 | 6K |
| 2025-05-30 | Altmeyer Anne | Director | Sell | 1K | $7.25 | $10K | 1K |
| 2025-05-30 | Ben Yong | Director | Grant | 5K | $0.00 | $0 | 8K |
| 2025-05-30 | Jenkins John Kenneth | Director | Sell | 3K | $7.35 | $20K | 33 |
| 2025-05-30 | Jenkins John Kenneth | Director | Grant | 5K | $0.00 | $0 | 5K |
| 2025-05-30 | Kung Winston | Director | Grant | 5K | $0.00 | $0 | 10K |
| 2025-03-06 | Smethurst Dominic | Chief Medical Officer | Sell | 6K | $6.78 | $43K | 71K |
| 2025-02-14 | Cohen Yuval | Chief Executive Officer | Sell | 7K | $8.76 | $62K | 138K |
| 2025-02-14 | Moran Sean F. | Chief Financial Officer | Sell | 3K | $8.76 | $24K | 73K |
| 2025-01-31 | Cohen Yuval | Chief Executive Officer | Grant | 68K | $0.00 | $0 | 145K |
| 2025-01-31 | Moran Sean F. | Chief Financial Officer | Grant | 28K | $0.00 | $0 | 76K |
| 2025-01-31 | Smethurst Dominic | Chief Medical Officer | Grant | 27K | $0.00 | $0 | 77K |
| 2024-09-20 | Cormorant Global Healthcare Master Fund, LP | TenPercentOwner | Buy | 48K | $21.47 | $1.0M | 2.3M |
| 2024-09-20 | Cormorant Global Healthcare Master Fund, LP | TenPercentOwner | Buy | 66K | $19.61 | $1.3M | 2.2M |
| 2024-09-20 | Cormorant Global Healthcare Master Fund, LP | TenPercentOwner | Buy | 140K | $20.42 | $2.8M | 2.3M |
| 2024-09-20 | Cormorant Global Healthcare Master Fund, LP | TenPercentOwner | Buy | 26K | $22.23 | $573K | 2.4M |
| 2024-09-20 | Cormorant Global Healthcare Master Fund, LP | TenPercentOwner | Buy | 45K | $17.48 | $788K | 2.1M |
| 2024-09-20 | Cormorant Global Healthcare Master Fund, LP | TenPercentOwner | Buy | 26K | $18.36 | $476K | 2.1M |
| 2024-08-16 | Kung Winston | Director | Grant | 6K | $0.00 | $0 | 6K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Sell | 7K | $42.24 | $303K | 77K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 2K | $14.10 | $25K | 86K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Sell | 2K | $42.24 | $75K | 84K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 2K | $4.26 | $10K | 87K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Sell | 2K | $42.24 | $98K | 84K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Sell | 12K | $42.24 | $493K | 84K |
| 2024-06-18 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 12K | $30.00 | $350K | 96K |
| 2024-06-18 | Moran Sean F. | Chief Financial Officer | Sell | 2K | $42.12 | $82K | 49K |
| 2024-06-18 | Moran Sean F. | Chief Financial Officer | Exercise or conversion | 2K | $30.00 | $59K | 51K |
| 2024-06-17 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 9K | $30.00 | $280K | 94K |
| 2024-06-17 | Cohen Yuval | Chief Executive Officer | Sell | 2K | $46.02 | $81K | 84K |
| 2024-06-17 | Cohen Yuval | Chief Executive Officer | Sell | 9K | $46.02 | $430K | 84K |
| 2024-06-17 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 2K | $4.26 | $8K | 86K |
| 2024-06-17 | Moran Sean F. | Chief Financial Officer | Exercise or conversion | 7K | $14.10 | $95K | 55K |
| 2024-06-17 | Moran Sean F. | Chief Financial Officer | Sell | 7K | $46.77 | $315K | 49K |
| 2024-06-14 | HOLMER ALAN F | Director | Exercise or conversion | 2K | $30.00 | $50K | 6K |
| 2024-06-14 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 17K | $14.10 | $237K | 101K |
| 2024-06-14 | Cohen Yuval | Chief Executive Officer | Sell | 17K | $50.17 | $844K | 84K |
| 2024-06-14 | Cohen Yuval | Chief Executive Officer | Exercise or conversion | 12K | $4.26 | $53K | 97K |
| 2024-06-14 | Cohen Yuval | Chief Executive Officer | Sell | 12K | $50.17 | $626K | 84K |
| 2024-06-14 | Moran Sean F. | Chief Financial Officer | Exercise or conversion | 8K | $4.26 | $33K | 56K |
| 2024-06-14 | Moran Sean F. | Chief Financial Officer | Exercise or conversion | 2K | $30.00 | $47K | 50K |
| 2024-06-14 | Moran Sean F. | Chief Financial Officer | Sell | 2K | $49.87 | $78K | 49K |
| 2024-06-14 | Moran Sean F. | Chief Financial Officer | Sell | 8K | $49.87 | $388K | 49K |
| 2024-05-30 | Altmeyer Anne | Director | Grant | 3K | $0.00 | $0 | 3K |
| 2024-05-30 | HOLMER ALAN F | Director | Grant | 3K | $0.00 | $0 | 4K |
| 2024-05-30 | Ben Yong | Director | Grant | 3K | $0.00 | $0 | 3K |
| 2024-05-30 | Jacques Rachelle Suzanne | Director | Grant | 3K | $0.00 | $0 | 3K |
| 2024-05-30 | Salzmann Peter | Director | Grant | 3K | $0.00 | $0 | 3K |
| 2024-05-30 | CATLIN AVERY W | Director | Grant | 3K | $0.00 | $0 | 4K |
| 2024-05-30 | Jenkins John Kenneth | Director | Grant | 3K | $0.00 | $0 | 3K |
| 2024-04-10 | Moran Sean F. | Chief Financial Officer | Exercise or conversion | 2K | $30.00 | $54K | 49K |
| 2024-03-08 | Chen Bihua | TenPercentOwner | Buy | 29K | $41.23 | $1.2M | 1.8M |
| 2024-03-08 | Chen Bihua | TenPercentOwner | Buy | 157K | $45.26 | $7.1M | 2.0M |
| 2024-03-08 | Chen Bihua | TenPercentOwner | Buy | 9K | $45.96 | $407K | 2.0M |
| 2024-03-08 | Chen Bihua | TenPercentOwner | Buy | 19K | $43.26 | $802K | 1.8M |
| 2024-03-08 | Chen Bihua | TenPercentOwner | Buy | 62K | $44.62 | $2.8M | 1.9M |
| 2024-03-08 | Chen Bihua | TenPercentOwner | Buy | 25K | $42.25 | $1.1M | 1.8M |
| 2024-03-07 | Chen Bihua | TenPercentOwner | Buy | 102K | $41.23 | $4.2M | 1.7M |
| 2024-03-07 | Chen Bihua | TenPercentOwner | Buy | 47K | $37.82 | $1.8M | 1.5M |
| 2024-03-07 | Chen Bihua | TenPercentOwner | Buy | 11K | $39.13 | $420K | 1.5M |
| 2024-03-07 | Chen Bihua | TenPercentOwner | Buy | 90K | $39.99 | $3.6M | 1.6M |
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. JSON6 Form 144 notices on file for CRBP worth $1.2M at the prices reported; 3 in the last 90 days worth $504K. Latest: Stifel, Nicolaus & Company, Inc CIAS /FA filed on 2026-08-07 to sell 12,000 shares ($121K) from 2026-08-07.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-08-07 | Stifel, Nicolaus & Company, Inc CIAS /FAOfficer | 12K | $121K | 0.062% | 2026-08-07 | Stifel Nicolaus & Company Inc |
| 2026-08-07 | Stifel, Nicolaus & Company, Inc CIAS /FAOfficer | 17K | $171K | 0.088% | 2026-08-07 | Stifel Nicolaus & Company Inc |
| 2026-07-27 | Smethurst DominicOfficer | 23K | $212K | 0.124% | 2026-07-27 | Stifel Nicolaus & Company Inc |
| 2026-03-02 | Smethurst DominicOfficer | 6K | $51K | 0.050% | 2026-03-02 | Stifel Nicolaus & Company Inc |
| 2025-10-24 | Moran Sean F.Officer | 13K | $221K | 0.106% | 2025-10-24 | Stifel Nicolaus & Company Inc |
| 2025-10-24 | Cohen YuvalOfficer | 28K | $470K | 0.225% | 2025-10-24 | Stifel Nicolaus & Company Inc |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON10 holders report 5% or more of CRBP in their latest filing, all on Schedule 13G (passive). The largest reported stake is Cormorant Asset Management, LP at 13.4% of the class (2,344,971 shares), filed 2025-12-15 for an event on 2025-12-11.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-09-30 | 13G | RA Capital Healthcare Fund, L.P.partnership | 1.9M | 9.9% | 2026-09-23 |
| 2026-09-30 | 13G | Rajeev Shahparent holding company, individual | 1.9M | 9.9% | 2026-09-23 |
| 2026-09-30 | 13G | Peter Kolchinskyparent holding company, individual | 1.9M | 9.9% | 2026-09-23 |
| 2026-09-30 | 13G | RA Capital Management, L.P.investment adviser, partnership | 1.9M | 9.9% | 2026-09-23 |
| 2026-08-14 | 13G/Ano. 1 | Citadel Securities LLCbroker-dealer, other entity | 206K | 1.1% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Citadel Securities Group LPparent holding company, partnership | 206K | 1.1% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Citadel Securities GP LLCparent holding company, other entity | 206K | 1.1% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Kenneth Griffinparent holding company, individual | 206K | 1.1% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Citadel Advisors Holdings LPparent holding company, partnership | 0 | 0.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Citadel Advisors LLCinvestment adviser, parent holding company, other entity | 0 | 0.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Citadel GP LLCparent holding company, other entity | 0 | 0.0% | 2026-06-30 |
| 2026-07-27 | 13G | BlackRock, Inc.parent holding company | 1.1M | 5.9% | 2026-06-30 |
| 2026-05-14 | 13G/Ano. 2 | Ting Jiaparent holding company, individual | 0 | 0.0% | 2026-03-31 |
| 2026-05-14 | 13G/Ano. 2 | Octagon Capital Advisors LPinvestment adviser, partnership | 0 | 0.0% | 2026-03-31 |
| 2026-05-14 | 13G/Ano. 2 | Octagon Investments Master Fund LPpartnership, other entity | 0 | 0.0% | 2026-03-31 |
| 2026-01-16 | 13G | Aberdeen Group plcparent holding company | 1.3M | 7.5% | 2025-12-31 |
| 2026-01-16 | 13G | abrdn Inc.corporation, investment adviser | 1.3M | 7.5% | 2025-12-31 |
| 2025-12-15 | 13G/Ano. 4 | Cormorant Asset Management, LPinvestment adviser, partnership | 2.3M | 13.4% | 2025-12-11 |
| 2025-12-15 | 13G/Ano. 4 | Chen Bihuaindividual, parent holding company | 2.3M | 13.4% | 2025-12-11 |
| 2025-11-14 | 13G/Ano. 3 | Bihua Chenparent holding company, individual | 2.4M | 12.8% | 2025-11-03 |
13F holders
Tracked managers holding CRBP at their latest 13F. JSON3 of the 30 tracked managers held CRBP at their latest 13F, $2.0M in total at quarter-end prices. Renaissance Technologies is the largest at $1.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 0 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 111K | $1.0M | 0.00% | -236K |
| Citadel Advisors | 2026-06-30 | 92K | $864K | 0.00% | -635K |
| Millennium Management | 2026-06-30 | 11K | $107K | 0.00% | -96K |
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
Corbus Pharmaceuticals Holdings 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 Corbus Pharmaceuticals Holdings (CRBP), SEC CIK 1595097, listed on Nasdaq, classified by the SEC as pharmaceutical preparations. 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 2026-09-24.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 2026-08-07.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 2026-09-30.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 2026-08-06.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 2026-09-14.JSON and CSV
- Company record
- EDGAR filing index for CIK 1595097Ticker, 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 pharmaceutical preparations
Other company pages
Datasets
Frequently Asked Questions
How much of CRBP is sold short?
3,054,964 shares were held short at the 2026-09-30 settlement, 3.9 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 CRBP's daily short volume?
On 2026-10-23, 69,686 of the 156,358 CRBP shares reported to FINRA were sold short, 44.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CRBP have fails to deliver?
The SEC's latest file shows 183 CRBP shares failed to deliver at settlement 2026-09-24. Fails are reported per settlement date and published twice a month with a lag.
Are CRBP insiders buying or selling?
Over the last 90 days CRBP insiders reported 1 open-market buy ($25K) against 3 sells ($308K), so the dollar flow leans toward selling. Latest filing: Ben Yong (Director) on 2026-09-14.
Have CRBP insiders filed to sell?
6 Form 144 notices on file for CRBP worth $1.2M at the prices reported; 3 in the last 90 days worth $504K. Latest: Stifel, Nicolaus & Company, Inc CIAS /FA filed on 2026-08-07 to sell 12,000 shares ($121K) from 2026-08-07.
Who owns 5% or more of CRBP?
10 holders report 5% or more of CRBP in their latest filing, all on Schedule 13G (passive). The largest reported stake is Cormorant Asset Management, LP at 13.4% of the class (2,344,971 shares), filed 2025-12-15 for an event on 2025-12-11.
Which tracked 13F managers own CRBP?
3 of the 30 tracked 13F managers held CRBP shares at their latest filing, $2.0M in all. The largest: Renaissance Technologies (111K shares, $1.0M), Ken Griffin's Citadel Advisors (92K shares, $864K), Izzy Englander's Millennium Management (11K shares, $107K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.