Equillium (EQ)
Equillium 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.
5.7M
Short interest
settlement 2026-10-15
11.0
Days to cover
+5.0 days vs prior
71.1%
Short share of volume
2026-11-02
3,573
Fails to deliver
settlement 2026-10-07
Thu 12 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 EQ is 5,655,364 shares, up 154,825 shares over the last month. Over the last 48 readings it ranged from 26,966 shares (15 January 2025) to 5,655,364 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 516K shares a day that is 11.0 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 5,655,364 | +2.1% | 515,903 | 10.96 |
| 2026-09-30 | 5,541,054 | +0.7% | 925,694 | 5.99 |
| 2026-09-15 | 5,500,539 | +2.4% | 365,965 | 15.03 |
| 2026-08-31 | 5,369,936 | -3.0% | 409,917 | 13.10 |
| 2026-08-14 | 5,533,732 | +2.2% | 553,605 | 10.00 |
| 2026-07-31 | 5,416,814 | -2.7% | 457,580 | 11.84 |
| 2026-07-15 | 5,569,502 | +8.9% | 1,226,259 | 4.54 |
| 2026-06-30 | 5,114,456 | +8.6% | 768,284 | 6.66 |
| 2026-06-15 | 4,708,359 | +30.6% | 1,519,411 | 3.10 |
| 2026-05-29 | 3,606,691 | +25.7% | 606,618 | 5.95 |
| 2026-05-15 | 2,868,786 | +2.1% | 233,832 | 12.27 |
| 2026-04-30 | 2,810,637 | +1.8% | 354,043 | 7.94 |
| 2026-04-15 | 2,762,399 | +1.3% | 386,739 | 7.14 |
| 2026-03-31 | 2,727,834 | +36.6% | 476,909 | 5.72 |
| 2026-03-13 | 1,996,887 | -4.1% | 762,968 | 2.62 |
| 2026-02-27 | 2,082,323 | +6.0% | 306,836 | 6.79 |
| 2026-02-13 | 1,965,458 | +47.0% | 542,633 | 3.62 |
| 2026-01-30 | 1,336,687 | -9.3% | 475,747 | 2.81 |
| 2026-01-15 | 1,473,443 | +32.2% | 605,348 | 2.43 |
| 2025-12-31 | 1,114,202 | +17.9% | 1,302,132 | 1.00 |
| 2025-12-15 | 944,698 | +22.7% | 512,122 | 1.84 |
| 2025-11-28 | 770,137 | +2.4% | 399,302 | 1.93 |
| 2025-11-14 | 751,835 | -24.8% | 559,446 | 1.34 |
| 2025-10-31 | 999,428 | +28.2% | 517,644 | 1.93 |
| 2025-10-15 | 779,644 | -64.3% | 630,149 | 1.24 |
| 2025-09-30 | 2,184,906 | +56.5% | 754,736 | 2.89 |
| 2025-09-15 | 1,396,579 | -31.8% | 1,810,602 | 1.00 |
| 2025-08-29 | 2,048,068 | -37.6% | 3,833,335 | 1.00 |
| 2025-08-15 | 3,281,320 | +666.9% | 39,039,611 | 1.00 |
| 2025-07-31 | 427,856 | -53.1% | 282,312 | 1.52 |
| 2025-07-15 | 912,320 | -41.1% | 831,017 | 1.10 |
| 2025-06-30 | 1,549,169 | -25.9% | 278,285 | 5.57 |
| 2025-06-13 | 2,091,205 | +2258.8% | 3,355,234 | 1.00 |
| 2025-05-30 | 88,654 | -23.3% | 51,757 | 1.71 |
| 2025-05-15 | 115,584 | -19.2% | 76,314 | 1.51 |
| 2025-04-30 | 142,981 | -26.3% | 93,890 | 1.52 |
| 2025-04-15 | 194,088 | -31.5% | 102,381 | 1.90 |
| 2025-03-31 | 283,162 | -22.0% | 205,262 | 1.38 |
| 2025-03-14 | 363,002 | -0.3% | 68,029 | 5.34 |
| 2025-02-28 | 363,929 | -45.9% | 104,129 | 3.49 |
| 2025-02-14 | 672,343 | +620.7% | 4,243,559 | 1.00 |
| 2025-01-31 | 93,293 | +246.0% | 181,763 | 1.00 |
| 2025-01-15 | 26,966 | -74.0% | 154,277 | 1.00 |
| 2024-12-31 | 103,616 | +31.6% | 143,187 | 1.00 |
| 2024-12-13 | 78,746 | -40.2% | 121,760 | 1.00 |
| 2024-11-29 | 131,704 | -14.2% | 69,559 | 1.89 |
| 2024-11-15 | 153,575 | +30.6% | 239,732 | 1.00 |
| 2024-10-31 | 117,561 | -46.1% | 359,795 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of EQ volume is 71.1%, up 21.4 points over the last five sessions. Over the last 30 readings it ranged from 22.8% (24 September 2026) to 80.2% (29 October 2026). The latest reading is 17.1 points above the 30-session average of 54.0%, on 203K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 144K | 203K | 71.1% | 0 |
| 2026-10-30 | 93K | 164K | 56.6% | 0 |
| 2026-10-29 | 149K | 186K | 80.2% | 0 |
| 2026-10-28 | 78K | 109K | 71.4% | 200 |
| 2026-10-27 | 107K | 184K | 58.2% | 0 |
| 2026-10-26 | 32K | 63K | 49.7% | 0 |
| 2026-10-23 | 56K | 146K | 38.6% | 2,002 |
| 2026-10-22 | 73K | 171K | 42.7% | 970 |
| 2026-10-21 | 86K | 140K | 61.4% | 0 |
| 2026-10-20 | 248K | 390K | 63.7% | 0 |
| 2026-10-19 | 185K | 258K | 71.5% | 2,014 |
| 2026-10-16 | 176K | 283K | 62.3% | 504 |
| 2026-10-15 | 87K | 253K | 34.5% | 0 |
| 2026-10-14 | 62K | 102K | 60.9% | 5,158 |
| 2026-10-13 | 192K | 249K | 77.1% | 23,230 |
| 2026-10-12 | 95K | 243K | 38.8% | 0 |
| 2026-10-09 | 176K | 333K | 52.8% | 0 |
| 2026-10-08 | 148K | 290K | 51.1% | 0 |
| 2026-10-07 | 147K | 217K | 67.8% | 500 |
| 2026-10-06 | 74K | 228K | 32.3% | 100 |
| 2026-10-05 | 112K | 357K | 31.4% | 40,429 |
| 2026-10-02 | 198K | 498K | 39.8% | 15,798 |
| 2026-10-01 | 110K | 204K | 53.6% | 0 |
| 2026-09-30 | 147K | 274K | 53.6% | 0 |
| 2026-09-29 | 93K | 155K | 60.3% | 0 |
| 2026-09-28 | 47K | 118K | 39.8% | 0 |
| 2026-09-25 | 31K | 47K | 66.9% | 0 |
| 2026-09-24 | 26K | 113K | 22.8% | 1,145 |
| 2026-09-23 | 188K | 256K | 73.7% | 21,718 |
| 2026-09-22 | 910K | 2.5M | 36.4% | 30,747 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 7 October 2026, the fails-to-deliver balance in EQ is 3,573 shares, down 46,081 shares over the last settlement date. Over the last 30 readings it ranged from 12 shares (31 August 2026) to 88,381 shares (3 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-07 | 3,573 | $1.42 | $5K |
| 2026-10-06 | 49,654 | $1.45 | $72K |
| 2026-09-18 | 4,158 | $1.89 | $8K |
| 2026-09-11 | 401 | $2.42 | $970 |
| 2026-09-10 | 1,902 | $2.56 | $5K |
| 2026-09-09 | 17,132 | $2.41 | $41K |
| 2026-09-04 | 21 | $2.22 | $47 |
| 2026-09-01 | 5,084 | $2.27 | $12K |
| 2026-08-31 | 12 | $2.39 | $29 |
| 2026-08-28 | 6,079 | $2.45 | $15K |
| 2026-08-27 | 29,056 | $2.36 | $69K |
| 2026-08-26 | 28,206 | $2.18 | $61K |
| 2026-08-17 | 4,238 | $2.36 | $10K |
| 2026-08-11 | 2,044 | $2.19 | $4K |
| 2026-08-05 | 7,345 | $2.26 | $17K |
| 2026-07-29 | 1,869 | $2.32 | $4K |
| 2026-07-23 | 11,112 | $2.76 | $31K |
| 2026-07-09 | 1,532 | $3.15 | $5K |
| 2026-07-07 | 84 | $2.77 | $233 |
| 2026-06-26 | 1,636 | $2.95 | $5K |
| 2026-06-18 | 1,590 | $2.99 | $5K |
| 2026-06-17 | 4,536 | $2.75 | $12K |
| 2026-06-16 | 2,389 | $2.80 | $7K |
| 2026-06-15 | 9,431 | $2.81 | $27K |
| 2026-06-12 | 5,581 | $2.81 | $16K |
| 2026-06-10 | 9,474 | $2.70 | $26K |
| 2026-06-09 | 4,809 | $2.77 | $13K |
| 2026-06-08 | 22,127 | $2.94 | $65K |
| 2026-06-04 | 2,464 | $3.11 | $8K |
| 2026-06-03 | 88,381 | $2.79 | $247K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for EQ in the last 90 days. The most recent filings are listed below. Latest filing: Zedelmayer Christine (Sr. Vice President and COO) on 2026-06-05.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-06-05 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 15K | $2.93 | $43K | 63K |
| 2026-06-05 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 15K | $0.79 | $11K | 77K |
| 2026-06-05 | Connelly Stephen | President and CSO | Sell | 31K | $2.94 | $91K | 762K |
| 2026-06-04 | Connelly Stephen | President and CSO | Sell | 200K | $3.16 | $633K | 793K |
| 2026-05-28 | Tom Penny | Principal Accounting Officer | Sell | 65K | $2.95 | $192K | 0 |
| 2026-05-28 | Tom Penny | Principal Accounting Officer | Exercise or conversion | 65K | $0.79 | $51K | 65K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 30K | $2.98 | $90K | 63K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 16K | $0.79 | $12K | 93K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 15K | $0.79 | $11K | 77K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 200 | $2.71 | $542 | 63K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 56K | $2.70 | $150K | 63K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 49K | $0.77 | $37K | 118K |
| 2026-05-28 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 7K | $0.73 | $5K | 70K |
| 2026-05-27 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 10K | $2.70 | $27K | 63K |
| 2026-05-27 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 10K | $0.77 | $8K | 72K |
| 2026-03-13 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 120K | $2.50 | $301K | 63K |
| 2026-03-13 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 120K | $0.79 | $94K | 183K |
| 2026-03-09 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 181K | $2.00 | $362K | 63K |
| 2026-03-09 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 75K | $0.79 | $59K | 244K |
| 2026-03-09 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 42K | $0.79 | $33K | 169K |
| 2026-03-09 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 36K | $0.79 | $28K | 127K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 109K | $1.78 | $195K | 91K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 77K | $0.73 | $56K | 168K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 77K | $1.74 | $133K | 91K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 109K | $0.79 | $86K | 201K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 77K | $1.74 | $133K | 191K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 77K | $0.73 | $56K | 268K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 109K | $1.78 | $195K | 191K |
| 2026-02-19 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 109K | $0.79 | $86K | 301K |
| 2026-01-08 | Tom Penny | Principal Accounting Officer | Sell | 7K | $1.29 | $8K | 0 |
| 2025-12-23 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 100K | $1.50 | $150K | 91K |
| 2025-12-23 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 100K | $0.79 | $79K | 191K |
| 2025-12-15 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 12K | $1.31 | $16K | 91K |
| 2025-12-12 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 24K | $1.34 | $32K | 103K |
| 2025-11-25 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 8K | $0.95 | $8K | 127K |
| 2025-11-25 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 100 | $0.98 | $98 | 135K |
| 2025-01-23 | Keyes Jason A | Chief Financial Officer | Sell | 10K | $0.65 | $7K | 38K |
| 2024-12-10 | Keyes Jason A | Chief Financial Officer | Grant | 15K | $0.54 | $8K | 89K |
| 2024-11-14 | Keyes Jason A | Chief Financial Officer | Sell | 10K | $0.70 | $7K | 48K |
| 2024-10-28 | Tom Penny | Principal Accounting Officer | Sell | 3K | $1.25 | $4K | 7K |
| 2024-10-28 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 15K | $1.25 | $19K | 135K |
| 2024-10-25 | Tom Penny | Principal Accounting Officer | Sell | 683 | $1.25 | $854 | 9K |
| 2024-09-26 | Keyes Jason A | Chief Financial Officer | Sell | 10K | $0.81 | $8K | 58K |
| 2024-09-16 | Tom Penny | Principal Accounting Officer | Sell | 39K | $0.85 | $33K | 10K |
| 2024-07-16 | Keyes Jason A | Chief Financial Officer | Sell | 10K | $0.87 | $9K | 68K |
| 2023-12-08 | Keyes Jason A | Chief Financial Officer | Grant | 9K | $0.58 | $5K | 59K |
| 2023-12-08 | Zedelmayer Christine | Sr. Vice President and COO | Grant | 9K | $0.58 | $5K | 135K |
| 2023-12-08 | Rothman Joel | Chief Development Officer | Grant | 9K | $0.58 | $5K | 58K |
| 2023-06-09 | Keyes Jason A | Chief Financial Officer | Grant | 15K | $0.56 | $8K | 50K |
| 2023-06-09 | Zedelmayer Christine | Sr. Vice President and COO | Grant | 15K | $0.56 | $8K | 126K |
| 2023-06-09 | Rothman Joel | Chief Development Officer | Grant | 15K | $0.56 | $8K | 49K |
| 2022-12-09 | Rothman Joel | Chief Development Officer | Grant | 4K | $1.19 | $5K | 34K |
| 2022-12-09 | Keyes Jason A | Chief Financial Officer | Grant | 4K | $1.19 | $5K | 35K |
| 2022-08-29 | Keyes Jason A | Chief Financial Officer | Sell | 7K | $2.83 | $20K | 78K |
| 2022-06-10 | Zedelmayer Christine | Sr. Vice President and COO | Grant | 9K | $1.85 | $17K | 111K |
| 2022-06-10 | Rothman Joel | Chief Development Officer | Grant | 6K | $1.85 | $12K | 31K |
| 2022-06-06 | Keyes Jason A | Chief Financial Officer | Sell | 5K | $2.52 | $13K | 85K |
| 2022-04-04 | Keyes Jason A | Chief Financial Officer | Sell | 8K | $3.18 | $25K | 90K |
| 2021-12-10 | Rothman Joel | Chief Development Officer | Grant | 1K | $2.35 | $3K | 24K |
| 2021-12-10 | Keyes Jason A | Chief Financial Officer | Grant | 6K | $2.35 | $13K | 23K |
| 2021-12-01 | Keyes Jason A | Chief Financial Officer | Sell | 5K | $5.08 | $25K | 98K |
| 2021-11-16 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 4K | $5.49 | $22K | 95K |
| 2021-11-16 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 15K | $2.45 | $37K | 110K |
| 2021-11-16 | Zedelmayer Christine | Sr. Vice President and COO | Sell | 7K | $5.49 | $40K | 102K |
| 2021-11-16 | Zedelmayer Christine | Sr. Vice President and COO | Exercise or conversion | 8K | $2.45 | $20K | 99K |
| 2021-10-06 | Connelly Stephen | Chief Scientific Officer | Sell | 6K | $7.01 | $39K | 993K |
| 2021-10-06 | Connelly Stephen | Chief Scientific Officer | Sell | 2K | $7.01 | $17K | 993K |
| 2021-10-06 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 2K | $2.80 | $7K | 995K |
| 2021-10-06 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 6K | $4.75 | $27K | 999K |
| 2021-09-27 | Keyes Jason A | Chief Financial Officer | Sell | 8K | $6.74 | $54K | 103K |
| 2021-07-27 | Keyes Jason A | Chief Financial Officer | Sell | 5K | $5.72 | $29K | 111K |
| 2021-06-10 | Rothman Joel | Chief Development Officer | Grant | 8K | $2.35 | $18K | 23K |
| 2021-06-10 | Keyes Jason A | Chief Financial Officer | Grant | 6K | $2.35 | $13K | 18K |
| 2021-06-10 | Zedelmayer Christine | Sr. Vice President and COO | Grant | 9K | $2.35 | $21K | 91K |
| 2021-06-08 | Connelly Stephen | Chief Scientific Officer | Sell | 10K | $7.18 | $75K | 993K |
| 2021-06-08 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 10K | $4.75 | $50K | 1.0M |
| 2021-06-07 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 14K | $4.75 | $66K | 1.0M |
| 2021-06-07 | Connelly Stephen | Chief Scientific Officer | Sell | 14K | $7.14 | $99K | 993K |
| 2021-06-07 | Connelly Stephen | Chief Scientific Officer | Sell | 8K | $7.08 | $60K | 993K |
| 2021-06-07 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 8K | $2.80 | $24K | 1.0M |
| 2021-06-04 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 7K | $2.80 | $18K | 1000K |
| 2021-06-04 | Connelly Stephen | Chief Scientific Officer | Sell | 7K | $7.01 | $46K | 993K |
| 2021-06-04 | Connelly Stephen | Chief Scientific Officer | Exercise or conversion | 7K | $4.75 | $33K | 1.0M |
| 2021-06-04 | Connelly Stephen | Chief Scientific Officer | Sell | 7K | $7.01 | $49K | 993K |
| 2021-05-26 | Keyes Jason A | Chief Financial Officer | Sell | 5K | $6.50 | $33K | 116K |
| 2020-12-28 | Connelly Stephen | Chief Scientific Officer | Sell | 25K | $4.52 | $113K | 993K |
| 2020-12-23 | Keyes Jason A | Chief Financial Officer | Sell | 8K | $4.74 | $38K | 121K |
| 2020-12-10 | Zedelmayer Christine | Sr. Vice President and COO | Other transaction | 1K | $2.35 | $3K | 81K |
| 2020-12-10 | Keyes Jason A | Chief Financial Officer | Other transaction | 5K | $2.35 | $13K | 12K |
| 2020-09-28 | Connelly Stephen | Chief Scientific Officer | Sell | 25K | $5.62 | $141K | 1.0M |
| 2020-07-13 | Connelly Stephen | Chief Scientific Officer | Sell | 250K | $8.13 | $2.0M | 1.0M |
| 2020-06-10 | Zedelmayer Christine | Sr. Vice President and COO | Other transaction | 10K | $2.41 | $23K | 80K |
| 2020-06-10 | Keyes Jason A | Chief Financial Officer | Other transaction | 5K | $2.41 | $12K | 7K |
| 2020-02-18 | Keyes Jason A | Chief Financial Officer | Sell | 5K | $5.03 | $25K | 131K |
| 2020-01-21 | Keyes Jason A | Chief Financial Officer | Sell | 5K | $4.41 | $22K | 136K |
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. JSON10 Form 144 notices on file for EQ worth $2.0M at the prices reported; 0 in the last 90 days worth $0. Latest: Connelly Stephen filed on 2026-06-05 to sell 30,975 shares ($91K) from 2026-06-05.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-06-05 | Connelly StephenOfficer, President and CSO | 31K | $91K | 0.049% | 2026-06-05 | Jefferies LLC |
| 2026-06-04 | Connelly StephenOfficer, President and CSO | 200K | $633K | 0.316% | 2026-06-04 | Jefferies LLC |
| 2026-05-27 | Zedelmayer ChristineOfficer | 66K | $173K | 0.104% | 2026-05-27 | Maxim Group |
| 2026-03-13 | Zedelmayer ChristineOfficer | 120K | $289K | 0.198% | 2026-03-13 | Maxim Group |
| 2026-03-09 | Zedelmayer ChristineOfficer | 181K | $321K | 0.298% | 2026-03-09 | Maxim Group |
| 2026-02-19 | Zedelmayer ChristineOfficer | 186K | $316K | 0.305% | 2026-02-19 | Maxim Group |
| 2026-01-08 | Tom PennyOfficer | 7K | $8K | 0.011% | 2026-01-08 | Maxim Group |
| 2025-12-23 | Zedelmayer ChristineOfficer | 100K | $150K | 0.164% | 2025-12-23 | Maxim Group |
| 2025-12-12 | Zedelmayer ChristineOfficer | 24K | $32K | 0.039% | 2025-12-12 | Maxim Group |
| 2025-11-25 | Zedelmayer ChristineOfficer | 8K | $7K | 0.013% | 2025-11-25 | Maxim Group |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON19 holders report 5% or more of EQ in their latest filing, all on Schedule 13G (passive). The largest reported stake is JANUS HENDERSON GROUP PLC at 10.0% of the class (6,083,239 shares), filed 2026-02-06 for an event on 2026-01-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-13 | 13G | Michael Choindividual, parent holding company | 4.1M | 6.5% | 2026-06-30 |
| 2026-08-13 | 13G | Affinity Asset Advisors, LLCinvestment adviser, other entity | 4.1M | 6.5% | 2026-06-30 |
| 2026-08-12 | 13G/Ano. 1 | Phillip Grossparent holding company, individual | 4.8M | 7.3% | 2026-06-30 |
| 2026-08-12 | 13G/Ano. 1 | Robert Atchinsonparent holding company, individual | 4.8M | 7.3% | 2026-06-30 |
| 2026-08-12 | 13G/Ano. 1 | Adage Capital Management, L.P.investment adviser, partnership | 4.8M | 7.3% | 2026-06-30 |
| 2026-05-15 | 13G/Ano. 2 | Xiangmin Cuiindividual | 5.7M | 8.9% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Decheng Capital Management IV (Cayman), LLCother entity | 4.3M | 6.7% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Decheng Capital Global Life Sciences Fund IV, L.P.partnership | 4.3M | 6.7% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Decheng Capital Global Healthcare Fund (Master), LPpartnership | 1.5M | 2.3% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Decheng Capital Global Healthcare GP, LLCother entity | 1.5M | 2.3% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 1 | ADAR1 Capital Management, LLCinvestment adviser, other entity | 6.6M | 9.9% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 1 | Daniel Schneebergerparent holding company, individual | 6.6M | 9.9% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 1 | ADAR1 Capital Management GP, LLCother entity | 6.3M | 9.5% | 2026-03-31 |
| 2026-05-07 | 13G | abrdn Inc.corporation, investment adviser | 3.4M | 5.3% | 2026-04-01 |
| 2026-05-07 | 13G | Aberdeen Group plcparent holding company | 3.4M | 5.3% | 2026-04-01 |
| 2026-03-20 | 13G | RA Capital Management, L.P.investment adviser, partnership | 6.5M | 9.9% | 2026-03-13 |
| 2026-03-20 | 13G | Peter Kolchinskyparent holding company, individual | 6.5M | 9.9% | 2026-03-13 |
| 2026-03-20 | 13G | Rajeev Shahparent holding company, individual | 6.5M | 9.9% | 2026-03-13 |
| 2026-03-20 | 13G | RA Capital Healthcare Fund, L.P.partnership | 6.5M | 9.9% | 2026-03-13 |
| 2026-02-06 | 13G/Ano. 1 | JANUS HENDERSON GROUP PLCparent holding company | 6.1M | 10.0% | 2026-01-30 |
| 2025-11-14 | 13G | Woodline Partners LPinvestment adviser, partnership | 3.5M | 5.9% | 2025-09-30 |
13F holders
Tracked managers holding EQ at their latest 13F. JSON4 of the 30 tracked managers held EQ at their latest 13F, $3.2M in total at quarter-end prices. Renaissance Technologies is the largest at $2.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 638K | $2.0M | 0.00% | -19K |
| Two Sigma Investments | 2026-06-30 | 207K | $662K | 0.00% | -39K |
| Citadel Advisors | 2026-06-30 | 100K | $319K | 0.00% | -59K |
| Millennium Management | 2026-06-30 | 43K | $137K | 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
Equillium 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 Equillium (EQ), SEC CIK 1746466, 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 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-07.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 2026-06-05.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 2026-08-13.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 2026-08-13.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 2026-06-05.JSON and CSV
- Company record
- EDGAR filing index for CIK 1746466Ticker, 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 EQ is sold short?
5,655,364 shares were held short at the 2026-10-15 settlement, 11.0 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 EQ's daily short volume?
On 2026-11-02, 144,421 of the 203,085 EQ shares reported to FINRA were sold short, 71.1% of the day's reported volume. Short volume is a flow for one day, not a position.
Does EQ have fails to deliver?
The SEC's latest file shows 3,573 EQ shares failed to deliver at settlement 2026-10-07. Fails are reported per settlement date and published twice a month with a lag.
Are EQ insiders buying or selling?
No open-market insider trades were reported for EQ in the last 90 days. The most recent filings are listed below. Latest filing: Zedelmayer Christine (Sr. Vice President and COO) on 2026-06-05.
Have EQ insiders filed to sell?
10 Form 144 notices on file for EQ worth $2.0M at the prices reported; 0 in the last 90 days worth $0. Latest: Connelly Stephen filed on 2026-06-05 to sell 30,975 shares ($91K) from 2026-06-05.
Who owns 5% or more of EQ?
19 holders report 5% or more of EQ in their latest filing, all on Schedule 13G (passive). The largest reported stake is JANUS HENDERSON GROUP PLC at 10.0% of the class (6,083,239 shares), filed 2026-02-06 for an event on 2026-01-30.
Which tracked 13F managers own EQ?
4 of the 30 tracked 13F managers held EQ shares at their latest filing, $3.2M in all. The largest: Renaissance Technologies (638K shares, $2.0M), Two Sigma Investments (207K shares, $662K), Ken Griffin's Citadel Advisors (100K shares, $319K), Izzy Englander's Millennium Management (43K shares, $137K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.