CalciMedica (CALC)
CalciMedica 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 pharmaceutical preparations.
62K
Short interest
settlement 2026-10-15
1.0
Days to cover
-0.5 days vs prior
55.2%
Short share of volume
2026-11-03
658
Fails to deliver
settlement 2026-10-13
Wed 11 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-03.
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 CALC is 61,641 shares, down 50,062 shares over the last month. Over the last 48 readings it ranged from 35,587 shares (15 August 2025) to 1,651,945 shares (30 June 2026). The latest reading sits at the bottom of that range. At the reported average volume of 70K shares a day that is 1.0 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 61,641 | -28.7% | 70,459 | 1.00 |
| 2026-09-30 | 86,433 | -22.6% | 57,731 | 1.50 |
| 2026-09-15 | 111,703 | -12.5% | 98,569 | 1.13 |
| 2026-08-31 | 127,684 | -60.5% | 99,862 | 1.28 |
| 2026-08-14 | 323,241 | -35.8% | 320,704 | 1.01 |
| 2026-07-31 | 503,070 | -47.6% | 277,430 | 1.81 |
| 2026-07-15 | 960,731 | -41.8% | 406,881 | 2.36 |
| 2026-06-30 | 1,651,945 | +497.8% | 6,188,729 | 1.00 |
| 2026-06-15 | 276,326 | +91.4% | 459,271 | 1.00 |
| 2026-05-29 | 144,356 | +5.8% | 152,375 | 1.00 |
| 2026-05-15 | 136,411 | -18.8% | 138,641 | 1.00 |
| 2026-04-30 | 167,953 | -54.9% | 151,788 | 1.11 |
| 2026-04-15 | 372,157 | +10.1% | 249,325 | 1.49 |
| 2026-03-31 | 337,917 | -26.4% | 244,586 | 1.38 |
| 2026-03-13 | 459,110 | +17.2% | 692,752 | 1.00 |
| 2026-02-27 | 391,796 | -8.4% | 339,491 | 1.15 |
| 2026-02-13 | 427,832 | -38.9% | 811,614 | 1.00 |
| 2026-01-30 | 699,828 | +770.0% | 5,279,084 | 1.00 |
| 2026-01-15 | 80,437 | +1.2% | 99,997 | 1.00 |
| 2025-12-31 | 79,498 | +12.5% | 104,594 | 1.00 |
| 2025-12-15 | 70,693 | +9.7% | 79,563 | 1.00 |
| 2025-11-28 | 64,428 | +22.4% | 107,740 | 1.00 |
| 2025-11-14 | 52,651 | -5.5% | 23,096 | 2.28 |
| 2025-10-31 | 55,734 | +1.8% | 27,537 | 2.02 |
| 2025-10-15 | 54,749 | -16.2% | 61,096 | 1.00 |
| 2025-09-30 | 65,344 | -9.2% | 48,890 | 1.34 |
| 2025-09-15 | 71,964 | +13.9% | 109,435 | 1.00 |
| 2025-08-29 | 63,199 | +77.6% | 35,631 | 1.77 |
| 2025-08-15 | 35,587 | -24.9% | 35,332 | 1.01 |
| 2025-07-31 | 47,356 | -47.7% | 157,649 | 1.00 |
| 2025-07-15 | 90,517 | -15.3% | 94,312 | 1.00 |
| 2025-06-30 | 106,818 | -3.1% | 38,464 | 2.78 |
| 2025-06-13 | 110,242 | -2.4% | 18,080 | 6.10 |
| 2025-05-30 | 112,961 | -13.6% | 16,289 | 6.93 |
| 2025-05-15 | 130,788 | +87.5% | 46,408 | 2.82 |
| 2025-04-30 | 69,763 | -35.5% | 16,554 | 4.21 |
| 2025-04-15 | 108,095 | -1.9% | 24,626 | 4.39 |
| 2025-03-31 | 110,224 | +5.8% | 87,722 | 1.26 |
| 2025-03-14 | 104,150 | +7.2% | 49,530 | 2.10 |
| 2025-02-28 | 97,164 | +4.2% | 15,082 | 6.44 |
| 2025-02-14 | 93,271 | +35.1% | 29,013 | 3.21 |
| 2025-01-31 | 69,061 | -4.0% | 32,528 | 2.12 |
| 2025-01-15 | 71,960 | +17.4% | 11,042 | 6.52 |
| 2024-12-31 | 61,281 | -6.6% | 38,090 | 1.61 |
| 2024-12-13 | 65,606 | +45.3% | 113,451 | 1.00 |
| 2024-11-29 | 45,157 | -35.6% | 23,798 | 1.90 |
| 2024-11-15 | 70,093 | -3.4% | 88,253 | 1.00 |
| 2024-10-31 | 72,576 | +112.5% | 56,333 | 1.29 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 3 November 2026, the short share of CALC volume is 55.2%, up 29.1 points over the last five sessions. Over the last 30 readings it ranged from 11.5% (15 October 2026) to 76.3% (26 October 2026). The latest reading is 10.9 points above the 30-session average of 44.3%, on 22K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-03 | 12K | 22K | 55.2% | 859 |
| 2026-11-02 | 24K | 67K | 36.7% | 4,170 |
| 2026-10-30 | 19K | 37K | 52.6% | 51 |
| 2026-10-29 | 26K | 47K | 54.2% | 0 |
| 2026-10-28 | 38K | 64K | 59.4% | 1,058 |
| 2026-10-27 | 5K | 18K | 26.1% | 800 |
| 2026-10-26 | 72K | 94K | 76.3% | 1,333 |
| 2026-10-23 | 37K | 60K | 62.1% | 113 |
| 2026-10-22 | 27K | 44K | 60.8% | 500 |
| 2026-10-21 | 26K | 43K | 60.4% | 0 |
| 2026-10-20 | 14K | 29K | 47.4% | 0 |
| 2026-10-19 | 2K | 9K | 21.1% | 0 |
| 2026-10-16 | 776 | 4K | 18.2% | 0 |
| 2026-10-15 | 1K | 11K | 11.5% | 0 |
| 2026-10-14 | 7K | 29K | 24.7% | 0 |
| 2026-10-13 | 9K | 39K | 23.4% | 0 |
| 2026-10-12 | 7K | 53K | 13.9% | 0 |
| 2026-10-09 | 23K | 41K | 54.5% | 1,698 |
| 2026-10-08 | 46K | 87K | 52.9% | 13,904 |
| 2026-10-07 | 908 | 6K | 16.4% | 0 |
| 2026-10-06 | 42K | 74K | 57.0% | 0 |
| 2026-10-05 | 4K | 13K | 29.3% | 0 |
| 2026-10-02 | 7K | 10K | 68.2% | 0 |
| 2026-10-01 | 2K | 9K | 28.3% | 80 |
| 2026-09-30 | 10K | 16K | 65.3% | 514 |
| 2026-09-29 | 5K | 13K | 40.9% | 0 |
| 2026-09-28 | 4K | 16K | 22.4% | 0 |
| 2026-09-25 | 16K | 22K | 73.3% | 0 |
| 2026-09-24 | 16K | 22K | 73.2% | 0 |
| 2026-09-23 | 13K | 30K | 43.6% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 13 October 2026, the fails-to-deliver balance in CALC is 658 shares, up 270 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (14 September 2026) to 94,855 shares (31 August 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-13 | 658 | $1.21 | $796 |
| 2026-10-09 | 388 | $1.31 | $508 |
| 2026-10-08 | 1 | $1.50 | $2 |
| 2026-10-07 | 1 | $1.47 | $1 |
| 2026-10-06 | 1 | $1.54 | $2 |
| 2026-10-05 | 711 | $1.62 | $1K |
| 2026-10-02 | 1 | $1.64 | $2 |
| 2026-10-01 | 2,269 | $1.62 | $4K |
| 2026-09-30 | 1 | $1.64 | $2 |
| 2026-09-29 | 1 | $1.70 | $2 |
| 2026-09-28 | 1,708 | $1.75 | $3K |
| 2026-09-25 | 2 | $1.74 | $3 |
| 2026-09-24 | 4 | $1.80 | $7 |
| 2026-09-23 | 4 | $1.87 | $7 |
| 2026-09-22 | 1,049 | $1.86 | $2K |
| 2026-09-21 | 4 | $1.92 | $8 |
| 2026-09-18 | 13 | $1.97 | $26 |
| 2026-09-17 | 1 | $1.98 | $2 |
| 2026-09-16 | 1 | $1.98 | $2 |
| 2026-09-15 | 4,639 | $2.00 | $9K |
| 2026-09-14 | 1 | $1.98 | $2 |
| 2026-09-11 | 1,231 | $2.12 | $3K |
| 2026-09-10 | 2,131 | $2.30 | $5K |
| 2026-09-09 | 585 | $2.02 | $1K |
| 2026-09-08 | 992 | $2.17 | $2K |
| 2026-09-04 | 98 | $2.20 | $216 |
| 2026-09-03 | 301 | $2.10 | $632 |
| 2026-09-02 | 42,686 | $2.00 | $85K |
| 2026-09-01 | 49,735 | $2.14 | $106K |
| 2026-08-31 | 94,855 | $0.46 | $44K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for CALC in the last 90 days. The most recent filings are listed below. Latest filing: Leheny A. Rachel (CHIEF EXECUTIVE OFFICER) on 2026-06-25.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-06-25 | Leheny A. Rachel | CHIEF EXECUTIVE OFFICER | Grant | 187K | $0.80 | $149K | 318K |
| 2026-06-25 | Roberts Eric W | CHIEF BUSINESS OFFICER | Grant | 187K | $0.80 | $149K | 366K |
| 2026-06-25 | WILSON ROBERT N | Director | Grant | 1.2M | $0.80 | $946K | 1.6M |
| 2026-06-25 | Hebbar Sudarshan | Chief Medical Officer | Grant | 124K | $0.80 | $100K | 186K |
| 2026-06-25 | Middleton Fred A | Director,TenPercentOwner | Buy | 249K | $0.80 | $199K | 1.1M |
| 2025-09-18 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 3K | $3.07 | $8K | 84K |
| 2025-09-15 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 3K | $2.68 | $9K | 82K |
| 2025-09-12 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $3.12 | $16K | 78K |
| 2025-09-09 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 2K | $3.15 | $7K | 73K |
| 2025-08-29 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 800 | $2.74 | $2K | 71K |
| 2025-08-28 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 9K | $2.86 | $26K | 70K |
| 2025-08-21 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 4K | $2.79 | $10K | 61K |
| 2025-08-20 | Roberts Eric W | CHIEF BUSINESS OFFICER | Exercise or conversion | 15K | $1.53 | $23K | 180K |
| 2025-08-20 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 2K | $2.72 | $5K | 57K |
| 2025-08-19 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 1K | $2.79 | $3K | 55K |
| 2025-08-19 | Hebbar Sudarshan | Chief Medical Officer | Buy | 10K | $2.82 | $27K | 62K |
| 2025-08-15 | Hebbar Sudarshan | Chief Medical Officer | Buy | 4K | $2.79 | $12K | 52K |
| 2025-08-15 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $2.90 | $15K | 54K |
| 2025-08-14 | Hebbar Sudarshan | Chief Medical Officer | Buy | 2K | $2.58 | $4K | 48K |
| 2025-07-28 | Stauderman Kenneth A. | Chief Scientific Officer | Buy | 1K | $3.96 | $4K | 13K |
| 2025-07-25 | Stauderman Kenneth A. | Chief Scientific Officer | Sell | 1K | $3.65 | $4K | 0 |
| 2025-07-22 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 2K | $3.77 | $6K | 49K |
| 2025-07-21 | Leheny A. Rachel | CHIEF EXECUTIVE OFFICER | Buy | 1K | $3.40 | $3K | 4K |
| 2025-07-21 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 2K | $3.37 | $5K | 48K |
| 2025-07-18 | WILSON ROBERT N | Director | Buy | 5K | $2.87 | $13K | 422K |
| 2025-07-18 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 2K | $2.88 | $6K | 46K |
| 2025-07-14 | Leheny A. Rachel | CHIEF EXECUTIVE OFFICER | Buy | 3K | $2.47 | $6K | 3K |
| 2025-07-14 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 7K | $2.43 | $16K | 44K |
| 2025-07-09 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $1.60 | $8K | 38K |
| 2025-07-01 | Stauderman Kenneth A. | Chief Scientific Officer | Buy | 1K | $1.85 | $2K | 1K |
| 2025-06-26 | Bardin Stephen | Chief Financial Officer | Buy | 2K | $1.50 | $3K | 3K |
| 2025-06-26 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $1.44 | $6K | 33K |
| 2025-06-11 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $1.85 | $9K | 28K |
| 2025-06-06 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $1.78 | $9K | 23K |
| 2025-06-05 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $1.70 | $9K | 18K |
| 2025-05-30 | Bardin Stephen | Chief Financial Officer | Buy | 1K | $1.69 | $2K | 41K |
| 2024-12-06 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 5K | $2.65 | $13K | 37K |
| 2024-11-01 | WILSON ROBERT N | Director | Buy | 53K | $3.75 | $200K | 418K |
| 2024-11-01 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 53K | $3.75 | $200K | 165K |
| 2024-11-01 | Leheny A. Rachel | CHIEF EXECUTIVE OFFICER | Buy | 20K | $3.75 | $75K | 131K |
| 2024-11-01 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 877 | $3.75 | $3K | 22K |
| 2024-11-01 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 87K | $3.75 | $326K | 814K |
| 2024-11-01 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 20K | $3.75 | $75K | 32K |
| 2024-11-01 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 87K | $3.75 | $326K | 814K |
| 2024-11-01 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 877 | $3.75 | $3K | 22K |
| 2024-09-09 | Dunn Michael J. | President and COO | Exercise or conversion | 12K | $1.39 | $16K | 12K |
| 2024-08-27 | Leheny A. Rachel | CHIEF EXECUTIVE OFFICER | Buy | 1K | $4.19 | $4K | 111K |
| 2024-08-23 | WILSON ROBERT N | Director | Buy | 54K | $3.72 | $201K | 364K |
| 2024-08-23 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 3K | $3.57 | $11K | 13K |
| 2024-08-23 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 2K | $3.58 | $7K | 47K |
| 2024-08-21 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $4.04 | $20K | 45K |
| 2024-06-28 | WILSON ROBERT N | Director | Buy | 51K | $3.52 | $180K | 310K |
| 2024-06-27 | WILSON ROBERT N | Director | Buy | 8K | $3.23 | $27K | 259K |
| 2024-06-27 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 5K | $3.22 | $16K | 10K |
| 2024-04-02 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 3K | $3.90 | $13K | 40K |
| 2024-04-01 | Roberts Eric W | CHIEF BUSINESS OFFICER | Buy | 746 | $3.90 | $3K | 37K |
| 2024-02-05 | Roberts Eric W | CHIEF BUSINESS OFFICER | Grant | 91K | $4.27 | $389K | 111K |
| 2024-01-23 | WILSON ROBERT N | Director | Grant | 68K | $4.27 | $292K | 250K |
| 2024-01-23 | Leheny A. Rachel | CHIEF EXECUTIVE OFFICER | Grant | 91K | $4.27 | $389K | 110K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 145K | $3.70 | $535K | 727K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 243K | $3.70 | $900K | 947K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 194K | $3.70 | $720K | 435K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 51K | $3.70 | $189K | 114K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 13K | $3.70 | $49K | 28K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 4K | $3.70 | $15K | 22K |
| 2024-01-23 | Sanderling Venture Partners VI LP | TenPercentOwner | Buy | 29K | $3.70 | $106K | 30K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 29K | $3.70 | $106K | 30K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 51K | $3.70 | $189K | 114K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 243K | $3.70 | $900K | 947K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 4K | $3.70 | $15K | 22K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 13K | $3.70 | $49K | 28K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 194K | $3.70 | $720K | 435K |
| 2024-01-23 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 145K | $3.70 | $535K | 727K |
| 2023-12-11 | WILSON ROBERT N | Director | Buy | 506 | $3.30 | $2K | 182K |
| 2023-11-07 | Leheny A. Rachel | Chief Executive Officer | Buy | 2K | $3.34 | $7K | 19K |
| 2023-11-06 | Leheny A. Rachel | Chief Executive Officer | Buy | 2K | $3.12 | $8K | 17K |
| 2023-11-06 | Roberts Eric W | Chief Business Officer | Buy | 2K | $3.12 | $7K | 36K |
| 2023-11-03 | Leheny A. Rachel | Chief Executive Officer | Buy | 5K | $2.85 | $14K | 14K |
| 2023-11-03 | Roberts Eric W | Chief Business Officer | Buy | 6K | $2.70 | $16K | 22K |
| 2023-11-03 | Roberts Eric W | Chief Business Officer | Buy | 3K | $2.80 | $9K | 17K |
| 2023-11-03 | Hebbar Sudarshan | Chief Medical Officer | Buy | 36K | $2.74 | $99K | 46K |
| 2023-11-03 | Roberts Eric W | Chief Business Officer | Buy | 11K | $2.83 | $32K | 33K |
| 2023-11-03 | Roberts Eric W | Chief Business Officer | Buy | 4K | $2.77 | $10K | 20K |
| 2023-08-29 | Roberts Eric W | Chief Business Officer | Buy | 223 | $3.02 | $673 | 5K |
| 2023-08-25 | Roberts Eric W | Chief Business Officer | Buy | 736 | $3.18 | $2K | 5K |
| 2023-08-22 | Roberts Eric W | Chief Business Officer | Buy | 714 | $3.27 | $2K | 4K |
| 2023-08-21 | Roberts Eric W | Chief Business Officer | Buy | 2K | $3.25 | $6K | 4K |
| 2023-06-26 | Roberts Eric W | Chief Business Officer | Buy | 200 | $3.53 | $706 | 16K |
| 2023-06-26 | Roberts Eric W | Chief Business Officer | Buy | 1K | $3.70 | $4K | 13K |
| 2023-06-23 | Roberts Eric W | Chief Business Officer | Buy | 500 | $3.35 | $2K | 16K |
| 2023-06-21 | Roberts Eric W | Chief Business Officer | Buy | 2K | $4.13 | $8K | 16K |
| 2023-06-20 | Roberts Eric W | Chief Business Officer | Buy | 500 | $4.85 | $2K | 14K |
| 2023-06-09 | Leheny A. Rachel | Chief Executive Officer | Buy | 400 | $5.25 | $2K | 9K |
| 2023-06-09 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 714 | $5.20 | $4K | 12K |
| 2023-06-08 | Leheny A. Rachel | Chief Executive Officer | Buy | 928 | $5.23 | $5K | 9K |
| 2023-06-08 | Roberts Eric W | Chief Business Officer | Buy | 485 | $5.20 | $3K | 13K |
| 2023-06-08 | Leheny A. Rachel | Chief Executive Officer | Buy | 1K | $5.23 | $5K | 9K |
| 2023-06-07 | Leheny A. Rachel | Chief Executive Officer | Buy | 1K | $5.25 | $5K | 8K |
| 2023-06-07 | Roberts Eric W | Chief Business Officer | Buy | 2K | $5.23 | $8K | 13K |
| 2023-06-07 | MIDDLETON FRED A | Director,TenPercentOwner | Buy | 500 | $5.20 | $3K | 11K |
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. JSON21 holders report 5% or more of CALC in their latest filing, 8 on Schedule 13D (active intent). The largest reported stake is Alafi Capital Company LLC at 19.9% of the class (7,220,101 shares), filed 2026-08-24 for an event on 2026-08-19.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-25 | 13G | Jon M. Plexicoparent holding company, individual | 2.1M | 6.0% | 2026-08-19 |
| 2026-08-25 | 13G | Stonepine GP, LLCother entity | 2.1M | 6.0% | 2026-08-19 |
| 2026-08-25 | 13G | Stonepine Capital Management, LLCinvestment adviser, other entity | 2.1M | 6.0% | 2026-08-19 |
| 2026-08-25 | 13G | Stonepine Capital, L.P.partnership | 2.1M | 6.0% | 2026-08-19 |
| 2026-08-24 | 13D/Ano. 1 | Alafi Capital Company LLCother entity | 7.2M | 19.9% | 2026-08-19 |
| 2026-08-24 | 13D/Ano. 1 | Christopher D. Alafiindividual | 7.2M | 19.9% | 2026-08-19 |
| 2026-08-21 | 13D/Ano. 1 | Bering Partners II GP, L.L.C.other entity | 3.6M | 10.0% | 2026-08-19 |
| 2026-08-21 | 13D/Ano. 1 | Bering Partners II, L.P.partnership | 3.6M | 10.0% | 2026-08-19 |
| 2026-08-21 | 13D/Ano. 1 | Evgeny Zaytsevindividual | 3.6M | 10.0% | 2026-08-19 |
| 2026-08-21 | 13D/Ano. 1 | Philip M Sawyerindividual | 3.6M | 10.0% | 2026-08-19 |
| 2026-08-14 | 13G | Armistice Capital, LLCinvestment adviser, other entity | 3.4M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G | Steven Boydparent holding company, individual | 3.4M | 10.0% | 2026-06-30 |
| 2026-08-14 | 13G | Woodline Partners LPinvestment adviser, partnership | 2.5M | 8.1% | 2026-06-30 |
| 2026-07-20 | 13G | CVI Investments, Inc.corporation | 1.6M | 5.1% | 2026-06-23 |
| 2026-07-20 | 13G | Heights Capital Management, Inc.corporation | 1.6M | 5.1% | 2026-06-23 |
| 2026-06-30 | 13D/Ano. 4 | Eric W. Robertsindividual | 2.0M | 6.4% | 2026-06-25 |
| 2026-06-30 | 13D/Ano. 4 | A. Rachel Lehenyindividual, investment adviser | 1.9M | 6.3% | 2026-06-25 |
| 2026-06-30 | 13D/Ano. 4 | Valence Investments SPV IV, LLCpartnership | 357K | 1.2% | 2026-06-25 |
| 2026-06-30 | 13D/Ano. 4 | Valence Investments SPV VI, LLCpartnership | 316K | 1.0% | 2026-06-25 |
| 2026-06-30 | 13D/Ano. 4 | Valence Investments SPV V, LLCpartnership | 86K | 0.3% | 2026-06-25 |
| 2026-06-25 | 13G/Ano. 3 | Marc Lasryindividual | 4.6M | 5.0% | 2026-06-23 |
| 2026-06-25 | 13G/Ano. 3 | GL Venture Opportunities Partners II, LLCother entity | 4.6M | 5.0% | 2026-06-23 |
| 2026-06-25 | 13G/Ano. 3 | Avenue Venture Opportunities Partners II, LLCother entity | 4.6M | 5.0% | 2026-06-23 |
| 2026-06-25 | 13G/Ano. 3 | Avenue Capital Management II, L.P.investment adviser | 4.6M | 5.0% | 2026-06-23 |
| 2026-06-25 | 13G/Ano. 3 | Avenue Venture Opportunities Fund II, L.P.other entity | 4.6M | 5.0% | 2026-06-23 |
| 2026-05-20 | 13G/Ano. 1 | Chernett Joreyindividual | 0 | 0.0% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus Capital Management, L.P.partnership | 392K | 2.4% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus GP, LLCother entity | 392K | 2.4% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Guy Levyindividual | 392K | 2.4% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus Capital Master Fund, L.P.non-US institution | 196K | 1.2% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus Capital, LLCother entity | 196K | 1.2% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus Capital Group, LLCother entity | 196K | 1.2% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus Private Equity Fund III, L.P.partnership | 196K | 1.2% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus Private Equity GP III, LLCother entity | 196K | 1.2% | 2026-03-31 |
| 2026-05-08 | 13G/Ano. 4 | Soleus PE GP III, LLCother entity | 196K | 1.2% | 2026-03-31 |
| 2026-02-06 | 13G/Ano. 1 | Deerfield Mgmt, L.P.partnership | 653K | 4.3% | 2026-02-06 |
| 2026-02-06 | 13G/Ano. 1 | Deerfield Management Company, L.P.partnership | 653K | 4.3% | 2026-02-06 |
| 2026-02-06 | 13G/Ano. 1 | Deerfield Partners, L.P.partnership | 653K | 4.3% | 2026-02-06 |
| 2026-02-06 | 13G/Ano. 1 | James E. Flynnindividual | 653K | 4.3% | 2026-02-06 |
| 2025-10-29 | 13G | Bering Partners II, L.P. ("Bering II")partnership | 663K | 5.8% | 2024-01-23 |
| 2025-10-29 | 13G | Bering Partners II GP, L.L.C. ("Bering II GP")other entity | 663K | 5.8% | 2024-01-23 |
| 2025-10-29 | 13G | Evgeny Zaytsev ("Zaytsev")individual | 663K | 5.8% | 2024-01-23 |
| 2025-10-29 | 13G | Philip Sawyer ("Sawyer")individual | 663K | 5.8% | 2024-01-23 |
13F holders
Tracked managers holding CALC at their latest 13F. JSON1 of the 30 tracked managers held CALC at their latest 13F, $100K in total at quarter-end prices. Renaissance Technologies is the largest at $100K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 0 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 97K | $100K | 0.00% | -31K |
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
CalciMedica 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 CalciMedica (CALC), SEC CIK 1534133, 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 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-03.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-13.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 2026-08-25.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 2026-08-11.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 1534133Ticker, 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 CALC is sold short?
61,641 shares were held short at the 2026-10-15 settlement, 1.0 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 CALC's daily short volume?
On 2026-11-03, 12,126 of the 21,952 CALC shares reported to FINRA were sold short, 55.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CALC have fails to deliver?
The SEC's latest file shows 658 CALC shares failed to deliver at settlement 2026-10-13. Fails are reported per settlement date and published twice a month with a lag.
Are CALC insiders buying or selling?
No open-market insider trades were reported for CALC in the last 90 days. The most recent filings are listed below. Latest filing: Leheny A. Rachel (CHIEF EXECUTIVE OFFICER) on 2026-06-25.
Who owns 5% or more of CALC?
21 holders report 5% or more of CALC in their latest filing, 8 on Schedule 13D (active intent). The largest reported stake is Alafi Capital Company LLC at 19.9% of the class (7,220,101 shares), filed 2026-08-24 for an event on 2026-08-19.
Which tracked 13F managers own CALC?
1 of the 30 tracked 13F managers held CALC shares at their latest filing, $100K in all. The largest: Renaissance Technologies (97K shares, $100K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.