Delcath Systems (DCTH)
Delcath Systems 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 surgical & medical instruments & apparatus.
1.9M
Short interest
settlement 2026-10-15
6.2
Days to cover
+0.9 days vs prior
53.5%
Short share of volume
2026-11-02
197
Fails to deliver
settlement 2026-10-14
Tue 3 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in DCTH is 1,883,018 shares, down 428,756 shares over the last month. Over the last 48 readings it ranged from 659,194 shares (13 June 2025) to 4,772,125 shares (15 October 2025). At the reported average volume of 302K shares a day that is 6.2 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 1,883,018 | -3.3% | 301,743 | 6.24 |
| 2026-09-30 | 1,947,041 | -15.8% | 362,508 | 5.37 |
| 2026-09-15 | 2,311,774 | +3.1% | 333,710 | 6.93 |
| 2026-08-31 | 2,242,281 | -4.8% | 451,440 | 4.97 |
| 2026-08-14 | 2,355,057 | -7.0% | 1,030,870 | 2.28 |
| 2026-07-31 | 2,532,559 | -6.0% | 350,263 | 7.23 |
| 2026-07-15 | 2,694,391 | -6.1% | 350,194 | 7.69 |
| 2026-06-30 | 2,868,132 | -13.0% | 591,071 | 4.85 |
| 2026-06-15 | 3,296,245 | +6.0% | 624,073 | 5.28 |
| 2026-05-29 | 3,110,018 | -9.3% | 421,197 | 7.38 |
| 2026-05-15 | 3,430,350 | -3.3% | 542,433 | 6.32 |
| 2026-04-30 | 3,547,136 | -8.1% | 272,806 | 13.00 |
| 2026-04-15 | 3,861,206 | -2.6% | 279,765 | 13.80 |
| 2026-03-31 | 3,965,630 | -3.5% | 315,284 | 12.58 |
| 2026-03-13 | 4,111,589 | +2.9% | 469,025 | 8.77 |
| 2026-02-27 | 3,996,811 | -1.0% | 506,894 | 7.88 |
| 2026-02-13 | 4,036,902 | -4.1% | 571,097 | 7.07 |
| 2026-01-30 | 4,210,177 | -3.6% | 441,928 | 9.53 |
| 2026-01-15 | 4,365,540 | +1.3% | 508,270 | 8.59 |
| 2025-12-31 | 4,309,072 | -2.4% | 389,062 | 11.08 |
| 2025-12-15 | 4,412,564 | +1.8% | 596,168 | 7.40 |
| 2025-11-28 | 4,335,183 | +2.1% | 928,559 | 4.67 |
| 2025-11-14 | 4,246,520 | +0.1% | 1,001,787 | 4.24 |
| 2025-10-31 | 4,242,060 | -11.1% | 1,367,609 | 3.10 |
| 2025-10-15 | 4,772,125 | +20.2% | 713,706 | 6.69 |
| 2025-09-30 | 3,971,390 | +24.2% | 729,084 | 5.45 |
| 2025-09-15 | 3,197,016 | +5.0% | 479,581 | 6.67 |
| 2025-08-29 | 3,043,627 | +0.5% | 510,639 | 5.96 |
| 2025-08-15 | 3,027,893 | +7.5% | 1,050,363 | 2.88 |
| 2025-07-31 | 2,817,473 | +29.0% | 619,179 | 4.55 |
| 2025-07-15 | 2,184,327 | +37.0% | 827,756 | 2.64 |
| 2025-06-30 | 1,594,921 | +141.9% | 1,060,275 | 1.50 |
| 2025-06-13 | 659,194 | -12.9% | 419,180 | 1.57 |
| 2025-05-30 | 757,192 | -19.6% | 596,880 | 1.27 |
| 2025-05-15 | 941,617 | -6.2% | 573,052 | 1.64 |
| 2025-04-30 | 1,003,421 | -3.2% | 308,265 | 3.26 |
| 2025-04-15 | 1,036,356 | +20.3% | 515,404 | 2.01 |
| 2025-03-31 | 861,829 | +7.0% | 495,442 | 1.74 |
| 2025-03-14 | 805,251 | +14.9% | 481,254 | 1.67 |
| 2025-02-28 | 700,601 | -20.5% | 299,473 | 2.34 |
| 2025-02-14 | 881,511 | -10.7% | 370,992 | 2.38 |
| 2025-01-31 | 986,856 | +5.3% | 515,725 | 1.91 |
| 2025-01-15 | 937,118 | -9.9% | 440,175 | 2.13 |
| 2024-12-31 | 1,040,326 | -23.1% | 355,778 | 2.92 |
| 2024-12-13 | 1,352,773 | -10.3% | 300,394 | 4.50 |
| 2024-11-29 | 1,508,566 | +27.9% | 420,375 | 3.59 |
| 2024-11-15 | 1,179,251 | +2.9% | 513,558 | 2.30 |
| 2024-10-31 | 1,145,629 | -8.3% | 431,026 | 2.66 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of DCTH volume is 53.5%, up 6.2 points over the last five sessions. Over the last 30 readings it ranged from 32.9% (27 October 2026) to 63.3% (20 October 2026). The latest reading is 3.1 points above the 30-session average of 50.4%, on 120K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 64K | 120K | 53.5% | 0 |
| 2026-10-30 | 59K | 117K | 50.6% | 0 |
| 2026-10-29 | 43K | 86K | 49.8% | 139 |
| 2026-10-28 | 31K | 69K | 44.3% | 0 |
| 2026-10-27 | 27K | 81K | 32.9% | 0 |
| 2026-10-26 | 35K | 73K | 47.3% | 21 |
| 2026-10-23 | 38K | 86K | 44.2% | 0 |
| 2026-10-22 | 37K | 75K | 48.5% | 0 |
| 2026-10-21 | 54K | 101K | 53.6% | 0 |
| 2026-10-20 | 46K | 72K | 63.3% | 2,000 |
| 2026-10-19 | 57K | 126K | 45.4% | 1,125 |
| 2026-10-16 | 45K | 84K | 53.7% | 0 |
| 2026-10-15 | 28K | 61K | 46.1% | 0 |
| 2026-10-14 | 31K | 62K | 50.2% | 0 |
| 2026-10-13 | 46K | 101K | 45.6% | 0 |
| 2026-10-12 | 33K | 61K | 54.7% | 0 |
| 2026-10-09 | 31K | 68K | 45.0% | 0 |
| 2026-10-08 | 80K | 193K | 41.6% | 684 |
| 2026-10-07 | 64K | 110K | 58.2% | 0 |
| 2026-10-06 | 48K | 109K | 44.6% | 0 |
| 2026-10-05 | 103K | 169K | 60.9% | 0 |
| 2026-10-02 | 88K | 175K | 50.2% | 0 |
| 2026-10-01 | 41K | 117K | 35.5% | 0 |
| 2026-09-30 | 63K | 107K | 58.7% | 0 |
| 2026-09-29 | 58K | 102K | 56.8% | 0 |
| 2026-09-28 | 42K | 87K | 48.4% | 74 |
| 2026-09-25 | 51K | 102K | 49.8% | 0 |
| 2026-09-24 | 69K | 111K | 61.7% | 0 |
| 2026-09-23 | 70K | 117K | 59.4% | 0 |
| 2026-09-22 | 76K | 133K | 57.3% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in DCTH is 197 shares, down 453 shares over the last settlement date. Over the last 30 readings it ranged from 8 shares (15 June 2026) to 89,780 shares (29 May 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 197 | $15.32 | $3K |
| 2026-09-23 | 650 | $16.40 | $11K |
| 2026-09-21 | 2,350 | $16.11 | $38K |
| 2026-09-11 | 696 | $15.80 | $11K |
| 2026-09-02 | 868 | $16.40 | $14K |
| 2026-08-24 | 4,481 | $17.14 | $77K |
| 2026-08-14 | 67 | $17.36 | $1K |
| 2026-08-07 | 5,316 | $15.47 | $82K |
| 2026-08-03 | 40 | $12.22 | $489 |
| 2026-07-31 | 19 | $12.04 | $229 |
| 2026-07-23 | 613 | $12.53 | $8K |
| 2026-07-20 | 156 | $12.81 | $2K |
| 2026-07-16 | 126 | $13.18 | $2K |
| 2026-07-10 | 3,314 | $13.52 | $45K |
| 2026-07-09 | 3,066 | $13.10 | $40K |
| 2026-06-30 | 3,023 | $12.95 | $39K |
| 2026-06-29 | 475 | $12.94 | $6K |
| 2026-06-24 | 9,315 | $12.29 | $114K |
| 2026-06-23 | 9,544 | $11.51 | $110K |
| 2026-06-22 | 4,656 | $11.69 | $54K |
| 2026-06-18 | 11,440 | $11.93 | $136K |
| 2026-06-16 | 3,473 | $11.79 | $41K |
| 2026-06-15 | 8 | $11.72 | $94 |
| 2026-06-12 | 24 | $11.77 | $282 |
| 2026-06-09 | 1,239 | $10.94 | $14K |
| 2026-06-05 | 3,865 | $10.79 | $42K |
| 2026-06-03 | 16,990 | $10.53 | $179K |
| 2026-05-29 | 89,780 | $10.95 | $983K |
| 2026-05-22 | 10,623 | $11.45 | $122K |
| 2026-05-21 | 443 | $11.23 | $5K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for DCTH in the last 90 days. The most recent filings are listed below. Latest filing: Rosalind Advisors, Inc. (Director) on 2026-10-13.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-13 | Rosalind Advisors, Inc. | Director | Other transaction | 28K | $0.00 | $0 | 3.4M |
| 2026-10-13 | Rosalind Advisors, Inc. | Director | Conversion | 4K | $0.00 | $0 | 3.4M |
| 2026-03-06 | Pennell Sandra | Chief Financial Officer | Buy | 6K | $9.04 | $50K | 77K |
| 2026-03-02 | MICHEL GERARD J | CHIEF EXECUTIVE OFFICER | Buy | 11K | $8.96 | $100K | 342K |
| 2025-11-21 | Sylvester John Richard | Director | Buy | 4K | $8.89 | $39K | 15K |
| 2025-11-11 | MICHEL GERARD J | CHIEF EXECUTIVE OFFICER | Buy | 12K | $8.53 | $98K | 331K |
| 2025-06-12 | Vukovic Vojo | CHIEF MEDICAL OFFICER | Exercise or conversion | 42K | $4.78 | $201K | 169K |
| 2025-05-05 | SALAMON STEVEN A J | Director | Exercise (in or at the money) | 400K | $10.00 | $4.0M | 3.4M |
| 2025-05-05 | Aharon Gil | Director | Exercise (in or at the money) | 400K | $10.00 | $4.0M | 3.4M |
| 2024-12-24 | Rosalind Advisors, Inc. | Director | Conversion | 250K | $10.00 | $2.5M | 3.0M |
| 2024-12-24 | Aharon Gil | Director | Conversion | 250K | $10.00 | $2.5M | 3.0M |
| 2024-12-24 | SALAMON STEVEN A J | Director | Conversion | 250K | $10.00 | $2.5M | 3.0M |
| 2024-10-22 | MICHEL GERARD J | CHIEF EXECUTIVE OFFICER | Exercise or conversion | 17K | $6.00 | $100K | 319K |
| 2024-04-18 | Rosalind Advisors, Inc. | Director | Conversion | 992K | $0.00 | $0 | 2.8M |
| 2024-04-18 | Rosalind Advisors, Inc. | Director | Exercise (in or at the money) | 620K | $0.01 | $6K | 2.8M |
| 2024-04-18 | Aharon Gil | Director | Exercise (in or at the money) | 620K | $0.01 | $6K | 2.8M |
| 2024-04-18 | Aharon Gil | Director | Conversion | 992K | $0.00 | $0 | 2.8M |
| 2024-04-18 | SALAMON STEVEN A J | Director | Exercise (in or at the money) | 620K | $0.01 | $6K | 2.7M |
| 2024-04-18 | SALAMON STEVEN A J | Director | Conversion | 992K | $0.00 | $0 | 2.7M |
| 2024-04-18 | Aharon Gil | Director | Exercise (in or at the money) | 620K | $0.01 | $6K | 2.7M |
| 2024-04-18 | Aharon Gil | Director | Conversion | 992K | $0.00 | $0 | 2.7M |
| 2024-03-19 | Hoffman David L. | GEN'L COUNSEL, CCO & SECY | Grant | 20K | $3.72 | $75K | 74K |
| 2024-03-19 | Muir Kevin | GM INTERVENTIONAL ONCOLOGY | Grant | 13K | $3.72 | $50K | 19K |
| 2024-03-19 | Pennell Sandra | SVP OF FINANCE, PFO AND PAO | Grant | 27K | $3.72 | $100K | 61K |
| 2024-03-19 | MICHEL GERARD J | CHIEF EXECUTIVE OFFICER | Grant | 40K | $3.72 | $150K | 303K |
| 2024-03-19 | Vukovic Vojo | CHIEF MEDICAL OFFICER | Grant | 27K | $3.72 | $100K | 127K |
| 2024-03-19 | SALAMON STEVEN A J | Director | Buy | 27K | $3.72 | $100K | 1.1M |
| 2024-03-19 | Aharon Gil | Director | Buy | 27K | $3.72 | $100K | 1.1M |
| 2023-12-12 | Vukovic Vojo | Chief Medical Officer | Buy | 40K | $3.00 | $120K | 100K |
| 2023-12-08 | MICHEL GERARD J | Chief Executive Officer | Buy | 34K | $2.94 | $100K | 262K |
| 2023-11-17 | Pennell Sandra | SVP of Finance, PFO and PAO | Buy | 30K | $2.43 | $73K | 30K |
| 2023-11-17 | Rosalind Advisors, Inc. | Director | Buy | 100K | $2.40 | $240K | 1.0M |
| 2023-11-16 | Hoffman David L. | See Remarks | Buy | 40K | $2.48 | $99K | 40K |
| 2023-11-16 | Vukovic Vojo | Chief Medical Officer | Buy | 60K | $2.48 | $149K | 60K |
| 2023-10-13 | Purpura John | Chief Operating Officer | Buy | 15K | $3.44 | $50K | 42K |
| 2023-08-21 | Sylvester John Richard | Director | Buy | 11K | $4.80 | $51K | 11K |
| 2023-08-18 | MICHEL GERARD J | Chief Executive Officer | Exercise (in or at the money) | 31K | $4.50 | $140K | 228K |
| 2023-03-29 | MICHEL GERARD J | Chief Executive Officer | Buy | 20K | $4.84 | $95K | 197K |
| 2022-12-14 | SALAMON STEVEN A J | Director | Buy | 15K | $3.62 | $55K | 455K |
| 2022-12-14 | Rosalind Advisors, Inc. | Director | Buy | 15K | $3.62 | $55K | 459K |
| 2022-12-13 | MICHEL GERARD J | Chief Executive Officer | Buy | 52K | $2.90 | $150K | 178K |
| 2022-07-20 | MICHEL GERARD J | Chief Executive Officer | Buy | 63K | $3.98 | $250K | 126K |
| 2022-05-16 | Purpura John | Chief Operating Officer | Buy | 3K | $4.61 | $15K | 27K |
| 2022-05-13 | SALAMON STEVEN A J | Director | Buy | 5K | $5.03 | $25K | 440K |
| 2022-05-12 | SALAMON STEVEN A J | Director | Buy | 6K | $4.90 | $29K | 29K |
| 2022-04-19 | SALAMON STEVEN A J | Director | Buy | 2K | $6.25 | $10K | 429K |
| 2022-04-19 | Rosalind Advisors, Inc. | Director | Buy | 2K | $6.25 | $10K | 433K |
| 2022-04-18 | MICHEL GERARD J | See Remarks | Buy | 2K | $6.37 | $11K | 63K |
| 2022-04-18 | MICHEL GERARD J | See Remarks | Buy | 200 | $6.34 | $1K | 61K |
| 2022-04-18 | Aharon Gil | Director | Buy | 2K | $6.35 | $13K | 404K |
| 2022-04-18 | Rosalind Advisors, Inc. | Director | Buy | 2K | $6.35 | $13K | 432K |
| 2022-04-13 | SALAMON STEVEN A J | Director | Buy | 2K | $6.45 | $10K | 428K |
| 2022-04-13 | Rosalind Advisors, Inc. | Director | Buy | 2K | $6.45 | $10K | 430K |
| 2022-04-12 | SALAMON STEVEN A J | Director | Buy | 3K | $6.48 | $16K | 425K |
| 2022-04-12 | Rosalind Advisors, Inc. | Director | Buy | 3K | $6.48 | $16K | 428K |
| 2022-04-11 | Purpura John | Chief Operating Officer | Buy | 5K | $6.59 | $33K | 24K |
| 2022-04-08 | MICHEL GERARD J | See Remarks | Buy | 1K | $6.55 | $7K | 61K |
| 2022-04-08 | MICHEL GERARD J | See Remarks | Buy | 1K | $6.59 | $7K | 60K |
| 2022-04-07 | Rosalind Advisors, Inc. | Director | Buy | 1K | $6.41 | $6K | 426K |
| 2022-04-07 | SALAMON STEVEN A J | Director | Buy | 1K | $6.41 | $6K | 424K |
| 2022-04-06 | Rosalind Advisors, Inc. | Director | Buy | 1K | $6.49 | $6K | 425K |
| 2022-04-06 | SALAMON STEVEN A J | Director | Buy | 1K | $6.49 | $6K | 423K |
| 2021-12-30 | Rosalind Advisors, Inc. | Director | Buy | 2K | $7.56 | $15K | 424K |
| 2021-12-30 | SALAMON STEVEN A J | Director | Buy | 2K | $7.56 | $15K | 422K |
| 2021-12-02 | MICHEL GERARD J | See Remarks | Buy | 23K | $8.61 | $200K | 59K |
| 2021-06-30 | Rosalind Advisors, Inc. | Director | Buy | 6K | $12.76 | $70K | 422K |
| 2021-06-30 | SALAMON STEVEN A J | Director | Buy | 6K | $12.76 | $70K | 420K |
| 2021-06-28 | Rosalind Advisors, Inc. | Director | Buy | 5K | $11.56 | $58K | 416K |
| 2021-06-28 | MICHEL GERARD J | Chief Executive Officer | Buy | 6K | $11.93 | $75K | 36K |
| 2021-06-28 | Rosalind Advisors, Inc. | Director | Buy | 500K | $11.56 | $5.8M | 416K |
| 2021-06-28 | SALAMON STEVEN A J | Director | Buy | 5K | $11.56 | $58K | 414K |
| 2021-06-25 | MICHEL GERARD J | Chief Executive Officer | Buy | 7K | $11.35 | $75K | 30K |
| 2021-06-24 | SALAMON STEVEN A J | Director | Other transaction | 877K | price not stated in the filing | not stated | 405K |
| 2021-06-24 | Aharon Gil | Director | Other transaction | 877K | price not stated in the filing | not stated | 402K |
| 2021-06-24 | Rosalind Advisors, Inc. | Director | Other transaction | 877K | price not stated in the filing | not stated | 407K |
| 2021-06-24 | SALAMON STEVEN A J | Director | Buy | 5K | $10.90 | $49K | 409K |
| 2021-06-23 | SALAMON STEVEN A J | Director | Conversion | 877K | price not stated in the filing | not stated | 405K |
| 2021-06-23 | Aharon Gil | Director | Conversion | 877K | price not stated in the filing | not stated | 402K |
| 2021-06-23 | Rosalind Advisors, Inc. | Director | Conversion | 877K | price not stated in the filing | not stated | 407K |
| 2021-05-13 | Purpura John | Chief Operating Officer | Buy | 4K | $9.42 | $38K | 19K |
| 2021-04-05 | MICHEL GERARD J | Chief Executive Officer | Buy | 16K | $12.88 | $200K | 23K |
| 2021-03-31 | Aharon Gil | Director | Exercise (in or at the money) | 215K | $10.00 | $2.1M | 402K |
| 2021-03-31 | Rosalind Advisors, Inc. | Director | Exercise (in or at the money) | 215K | $10.00 | $2.1M | 407K |
| 2021-03-31 | SALAMON STEVEN A J | Director | Tax withholding | 215K | $10.00 | $2.1M | 405K |
| 2020-12-11 | MICHEL GERARD J | Chief Executive Officer | Buy | 8K | $13.25 | $99K | 8K |
| 2020-11-19 | Purpura John | Chief Operating Officer | Buy | 2K | $12.68 | $20K | 15K |
| 2020-11-19 | Purpura John | Chief Operating Officer | Buy | 2K | $12.68 | $20K | 15K |
| 2020-11-17 | SALAMON STEVEN A J | Director | Buy | 3K | $12.11 | $30K | 190K |
| 2020-11-17 | Rosalind Advisors, Inc. | Director | Buy | 3K | $12.11 | $30K | 192K |
| 2020-11-16 | Aharon Gil | Director | Buy | 2K | $12.00 | $24K | 187K |
| 2020-11-13 | SALAMON STEVEN A J | Director | Buy | 2K | $11.51 | $23K | 187K |
| 2020-11-13 | Rosalind Advisors, Inc. | Director | Buy | 4K | $11.75 | $47K | 189K |
| 2020-05-08 | Rueckert William Dodge | Director | Conversion | 6K | price not stated in the filing | not stated | 6K |
| 2020-05-08 | STOLL ROGER G PHD | Director | Conversion | 9K | price not stated in the filing | not stated | 9K |
| 2020-05-08 | Taglietti Marco | Director | Conversion | 6K | price not stated in the filing | not stated | 6K |
| 2020-05-08 | Keck Barbra | See Remarks | Conversion | 7K | price not stated in the filing | not stated | 13K |
| 2020-05-08 | Simpson Jennifer K. | President and CEO | Conversion | 15K | price not stated in the filing | not stated | 25K |
| 2020-05-08 | Purpura John | See Remarks | Conversion | 7K | price not stated in the filing | not stated | 13K |
| 2020-05-06 | Keck Barbra | See Remarks | Grant | 6K | $0.00 | $0 | 6K |
| 2020-05-06 | Simpson Jennifer K. | President and CEO | Grant | 10K | $0.00 | $0 | 10K |
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. JSON6 holders report 5% or more of DCTH in their latest filing, 3 on Schedule 13D (active intent). The largest reported stake is Aharon Gil at 9.9% of the class, filed 2026-10-19 for an event on 2026-10-13.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-27 | 13G | BlackRock Portfolio Management LLCparent holding company | 2.2M | 6.3% | 2026-09-30 |
| 2026-10-19 | 13D/Ano. 16 | Aharon Gilindividual | n/a | 9.9% | 2026-10-13 |
| 2026-10-19 | 13D/Ano. 16 | SALAMON STEVEN A Jindividual | n/a | 9.9% | 2026-10-13 |
| 2026-10-19 | 13D/Ano. 16 | Rosalind Advisors, Inc.corporation | 6.7M | 9.9% | 2026-10-13 |
| 2026-10-19 | 13D/Ano. 16 | Rosalind Opportunities Fund I L.P.partnership | 3.5M | 4.9% | 2026-10-13 |
| 2026-10-19 | 13D/Ano. 16 | Rosalind Master Fund L.P.partnership | 2.9M | 4.5% | 2026-10-13 |
| 2026-07-28 | 13G | BlackRock, Inc.parent holding company | 1.8M | 5.3% | 2026-06-30 |
| 2026-03-20 | 13G | Daniel Kaufmanindividual | 1.8M | 5.1% | 2026-03-18 |
13F holders
Tracked managers holding DCTH at their latest 13F. JSON5 of the 30 tracked managers held DCTH at their latest 13F, $10.4M in total at quarter-end prices. Millennium Management is the largest at $7.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Millennium Management | 2026-06-30 | 566K | $7.1M | 0.00% | -22K |
| AQR Capital Management | 2026-06-30 | 173K | $2.2M | 0.00% | +141K |
| D. E. Shaw & Co. | 2026-06-30 | 58K | $729K | 0.00% | new |
| Citadel Advisors | 2026-06-30 | 15K | $189K | 0.00% | -62K |
| Two Sigma Investments | 2026-06-30 | 10K | $127K | 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
Delcath Systems 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 Delcath Systems (DCTH), SEC CIK 872912, listed on Nasdaq, classified by the SEC as surgical & medical instruments & apparatus. 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 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.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 2026-10-27.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 2026-10-13.JSON and CSV
- Company record
- EDGAR filing index for CIK 872912Ticker, 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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Datasets
Frequently Asked Questions
How much of DCTH is sold short?
1,883,018 shares were held short at the 2026-10-15 settlement, 6.2 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 DCTH's daily short volume?
On 2026-11-02, 63,950 of the 119,516 DCTH shares reported to FINRA were sold short, 53.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does DCTH have fails to deliver?
The SEC's latest file shows 197 DCTH shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are DCTH insiders buying or selling?
No open-market insider trades were reported for DCTH in the last 90 days. The most recent filings are listed below. Latest filing: Rosalind Advisors, Inc. (Director) on 2026-10-13.
Who owns 5% or more of DCTH?
6 holders report 5% or more of DCTH in their latest filing, 3 on Schedule 13D (active intent). The largest reported stake is Aharon Gil at 9.9% of the class, filed 2026-10-19 for an event on 2026-10-13.
Which tracked 13F managers own DCTH?
5 of the 30 tracked 13F managers held DCTH shares at their latest filing, $10.4M in all. The largest: Izzy Englander's Millennium Management (566K shares, $7.1M), Cliff Asness's AQR Capital Management (173K shares, $2.2M), D. E. Shaw & Co. (58K shares, $729K), Ken Griffin's Citadel Advisors (15K shares, $189K), Two Sigma Investments (10K shares, $127K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.