Q32 Bio (QTTB)
Q32 Bio 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.
5.7M
Short interest
settlement 2026-10-15
5.3
Days to cover
+0.9 days vs prior
61.7%
Short share of volume
2026-11-02
1,442
Fails to deliver
settlement 2026-10-14
Thu 12 Nov
Next earnings
estimated date
-$320K
Insider flow, 90 days
0 buys, 6 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 QTTB is 5,652,682 shares, up 1,880,031 shares over the last month. Over the last 48 readings it ranged from 264,909 shares (15 January 2026) to 5,652,682 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 1.1M shares a day that is 5.3 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/qttb" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 5,652,682 | +21.0% | 1,077,294 | 5.25 |
| 2026-09-30 | 4,671,943 | +23.8% | 1,084,552 | 4.31 |
| 2026-09-15 | 3,772,651 | +6.1% | 733,160 | 5.15 |
| 2026-08-31 | 3,556,186 | +13.3% | 372,926 | 9.54 |
| 2026-08-14 | 3,137,680 | +4.6% | 457,508 | 6.86 |
| 2026-07-31 | 3,000,835 | +32.6% | 794,972 | 3.77 |
| 2026-07-15 | 2,263,602 | +234.3% | 4,102,102 | 1.00 |
| 2026-06-30 | 677,047 | -25.3% | 421,449 | 1.61 |
| 2026-06-15 | 906,228 | +5.2% | 650,420 | 1.39 |
| 2026-05-29 | 861,749 | +36.2% | 2,750,342 | 1.00 |
| 2026-05-15 | 632,722 | -3.1% | 236,732 | 2.67 |
| 2026-04-30 | 652,815 | +70.7% | 394,931 | 1.65 |
| 2026-04-15 | 382,350 | -7.0% | 315,166 | 1.21 |
| 2026-03-31 | 411,011 | +17.3% | 341,397 | 1.20 |
| 2026-03-13 | 350,520 | -3.2% | 306,468 | 1.14 |
| 2026-02-27 | 362,026 | -1.0% | 124,549 | 2.91 |
| 2026-02-13 | 365,620 | +18.4% | 174,725 | 2.09 |
| 2026-01-30 | 308,671 | +16.5% | 184,229 | 1.68 |
| 2026-01-15 | 264,909 | -6.1% | 154,787 | 1.71 |
| 2025-12-31 | 282,006 | -34.3% | 166,051 | 1.70 |
| 2025-12-15 | 428,900 | +45.3% | 15,874,400 | 1.00 |
| 2025-11-28 | 295,192 | +6.3% | 60,494 | 4.88 |
| 2025-11-14 | 277,802 | +1.8% | 78,222 | 3.55 |
| 2025-10-31 | 272,900 | -41.3% | 170,139 | 1.60 |
| 2025-10-15 | 464,505 | +67.2% | 832,378 | 1.00 |
| 2025-09-30 | 277,804 | -3.7% | 68,868 | 4.03 |
| 2025-09-15 | 288,476 | -6.0% | 65,792 | 4.38 |
| 2025-08-29 | 306,886 | -13.8% | 94,567 | 3.25 |
| 2025-08-15 | 355,855 | -13.7% | 174,545 | 2.04 |
| 2025-07-31 | 412,153 | -26.0% | 747,929 | 1.00 |
| 2025-07-15 | 556,802 | +109.2% | 6,663,054 | 1.00 |
| 2025-06-30 | 266,123 | -30.8% | 153,639 | 1.73 |
| 2025-06-13 | 384,785 | -16.3% | 128,137 | 3.00 |
| 2025-05-30 | 459,618 | -26.7% | 102,856 | 4.47 |
| 2025-05-15 | 627,032 | +13.1% | 99,909 | 6.28 |
| 2025-04-30 | 554,238 | -21.2% | 262,873 | 2.11 |
| 2025-04-15 | 703,218 | -19.0% | 235,252 | 2.99 |
| 2025-03-31 | 868,525 | -13.9% | 104,833 | 8.28 |
| 2025-03-14 | 1,008,620 | -1.6% | 195,326 | 5.16 |
| 2025-02-28 | 1,025,254 | -22.0% | 271,914 | 3.77 |
| 2025-02-14 | 1,313,826 | -1.8% | 265,914 | 4.94 |
| 2025-01-31 | 1,337,625 | +0.2% | 172,915 | 7.74 |
| 2025-01-15 | 1,335,173 | -9.4% | 348,320 | 3.83 |
| 2024-12-31 | 1,473,706 | +31.4% | 576,555 | 2.56 |
| 2024-12-13 | 1,121,240 | +55.9% | 878,823 | 1.28 |
| 2024-11-29 | 719,078 | +15.0% | 119,538 | 6.02 |
| 2024-11-15 | 625,320 | -8.9% | 105,798 | 5.91 |
| 2024-10-31 | 686,073 | +1.1% | 85,854 | 7.99 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of QTTB volume is 61.7%, up 10.3 points over the last five sessions. Over the last 30 readings it ranged from 28.9% (24 September 2026) to 78.0% (2 October 2026). The latest reading is 5.9 points above the 30-session average of 55.8%, on 101K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 62K | 101K | 61.7% | 0 |
| 2026-10-30 | 66K | 112K | 58.8% | 0 |
| 2026-10-29 | 61K | 126K | 48.5% | 0 |
| 2026-10-28 | 87K | 213K | 40.7% | 0 |
| 2026-10-27 | 123K | 319K | 38.5% | 0 |
| 2026-10-26 | 118K | 229K | 51.4% | 0 |
| 2026-10-23 | 96K | 194K | 49.7% | 0 |
| 2026-10-22 | 79K | 132K | 59.8% | 0 |
| 2026-10-21 | 57K | 137K | 41.9% | 0 |
| 2026-10-20 | 103K | 202K | 50.9% | 544 |
| 2026-10-19 | 138K | 255K | 53.9% | 0 |
| 2026-10-16 | 180K | 339K | 53.2% | 2,553 |
| 2026-10-15 | 93K | 205K | 45.1% | 0 |
| 2026-10-14 | 167K | 297K | 56.4% | 0 |
| 2026-10-13 | 207K | 305K | 68.1% | 0 |
| 2026-10-12 | 183K | 327K | 56.0% | 0 |
| 2026-10-09 | 193K | 362K | 53.5% | 1,997 |
| 2026-10-08 | 181K | 275K | 65.7% | 1 |
| 2026-10-07 | 156K | 277K | 56.3% | 17,057 |
| 2026-10-06 | 163K | 271K | 60.2% | 979 |
| 2026-10-05 | 278K | 413K | 67.2% | 0 |
| 2026-10-02 | 825K | 1.1M | 78.0% | 6 |
| 2026-10-01 | 686K | 1.3M | 52.5% | 12,778 |
| 2026-09-30 | 1.1M | 1.9M | 55.2% | 77,967 |
| 2026-09-29 | 283K | 428K | 66.0% | 0 |
| 2026-09-28 | 388K | 540K | 71.9% | 0 |
| 2026-09-25 | 105K | 194K | 54.3% | 0 |
| 2026-09-24 | 151K | 523K | 28.9% | 5,627 |
| 2026-09-23 | 196K | 341K | 57.5% | 2,146 |
| 2026-09-22 | 127K | 173K | 73.2% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in QTTB is 1,442 shares, down 1,656 shares over the last settlement date. Over the last 30 readings it ranged from 4 shares (23 June 2026) to 46,559 shares (30 September 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 1,442 | $8.06 | $12K |
| 2026-10-13 | 3,098 | $8.74 | $27K |
| 2026-10-09 | 686 | $8.09 | $6K |
| 2026-10-08 | 9,341 | $7.99 | $75K |
| 2026-10-07 | 1,947 | $8.11 | $16K |
| 2026-10-06 | 4,766 | $8.37 | $40K |
| 2026-10-02 | 27,627 | $8.25 | $228K |
| 2026-09-30 | 46,559 | $9.53 | $444K |
| 2026-09-22 | 12,985 | $10.47 | $136K |
| 2026-09-21 | 16,873 | $10.54 | $178K |
| 2026-09-15 | 8,781 | $10.91 | $96K |
| 2026-09-14 | 1,133 | $11.10 | $13K |
| 2026-09-04 | 257 | $12.80 | $3K |
| 2026-09-02 | 13 | $14.36 | $187 |
| 2026-08-25 | 2,917 | $16.36 | $48K |
| 2026-08-24 | 200 | $15.97 | $3K |
| 2026-08-20 | 2,130 | $15.84 | $34K |
| 2026-08-12 | 14 | $15.41 | $216 |
| 2026-07-31 | 4,506 | $15.56 | $70K |
| 2026-07-21 | 30,354 | $15.04 | $457K |
| 2026-07-16 | 40,070 | $15.70 | $629K |
| 2026-07-14 | 297 | $21.38 | $6K |
| 2026-07-13 | 33,409 | $11.21 | $375K |
| 2026-06-26 | 3,810 | $11.95 | $46K |
| 2026-06-24 | 4,961 | $11.88 | $59K |
| 2026-06-23 | 4 | $12.65 | $51 |
| 2026-06-22 | 1,901 | $11.90 | $23K |
| 2026-06-15 | 127 | $12.64 | $2K |
| 2026-06-09 | 489 | $12.03 | $6K |
| 2026-06-05 | 618 | $14.00 | $9K |
Insider trades
SEC Form 4, newest first. JSONInsiders at QTTB reported 6 open-market sells worth $320K in the last 90 days and no open-market buys. Latest filing: Kalowski Lee (CFO and President) on 2026-10-06.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-06 | Kalowski Lee | CFO and President | Sell | 1K | $8.32 | $11K | 137K |
| 2026-10-06 | Violette Shelia M. | Chief Scientific Officer | Sell | 917 | $8.32 | $8K | 127K |
| 2026-10-06 | Morrison Jodie Pope | CEO | Sell | 3K | $8.32 | $27K | 340K |
| 2026-08-25 | Violette Shelia M. | Chief Scientific Officer | Sell | 3K | $16.56 | $46K | 128K |
| 2026-08-25 | Morrison Jodie Pope | CEO | Sell | 10K | $16.56 | $163K | 343K |
| 2026-08-25 | Kalowski Lee | CFO and President | Sell | 4K | $16.56 | $66K | 138K |
| 2026-07-16 | Violette Shelia M. | Chief Scientific Officer | Grant | 38K | $0.00 | $0 | 131K |
| 2026-07-16 | Morrison Jodie Pope | CEO | Grant | 132K | $0.00 | $0 | 353K |
| 2026-07-16 | Kalowski Lee | CFO and President | Grant | 53K | $0.00 | $0 | 142K |
| 2026-06-30 | Manke Isaac | Director | Exercise or conversion | 54K | $2.80 | $150K | 54K |
| 2026-05-28 | OrbiMed Capital GP VII LLC | Director,TenPercentOwner | Buy | 1.3M | $8.00 | $10.0M | 3.5M |
| 2026-05-28 | OrbiMed Capital GP VII LLC | Director,TenPercentOwner | Buy | 625K | $8.00 | $5.0M | 625K |
| 2026-05-28 | Xu Diyong | Director, 10% owner | Buy | 625K | $8.00 | $5.0M | 625K |
| 2026-05-28 | Xu Diyong | Director, 10% owner | Buy | 1.3M | $8.00 | $10.0M | 3.5M |
| 2026-05-28 | ORBIMED ADVISORS LLC | Director, 10% owner | Buy | 625K | $8.00 | $5.0M | 625K |
| 2026-05-28 | ORBIMED ADVISORS LLC | Director, 10% owner | Buy | 1.3M | $8.00 | $10.0M | 3.5M |
| 2026-02-25 | Violette Shelia M. | Chief Scientific Officer | Sell | 3K | $4.51 | $13K | 56K |
| 2026-02-25 | Morrison Jodie Pope | CEO | Sell | 10K | $4.51 | $45K | 89K |
| 2026-02-25 | Kalowski Lee | CFO and President | Sell | 4K | $4.51 | $18K | 36K |
| 2026-02-24 | Violette Shelia M. | Chief Scientific Officer | Grant | 38K | $0.00 | $0 | 93K |
| 2026-02-24 | Morrison Jodie Pope | CEO | Grant | 132K | $0.00 | $0 | 221K |
| 2026-02-24 | Kalowski Lee | CFO and President | Grant | 53K | $0.00 | $0 | 89K |
| 2025-12-02 | Morrison Jodie Pope | CEO | Sell | 23K | $3.46 | $78K | 99K |
| 2025-12-02 | Kalowski Lee | CFO and President | Sell | 9K | $3.46 | $31K | 40K |
| 2025-08-26 | Violette Shelia M. | Chief Scientific Officer | Sell | 3K | $1.80 | $5K | 58K |
| 2025-08-26 | Morrison Jodie Pope | CEO | Sell | 10K | $1.80 | $19K | 122K |
| 2025-08-26 | Kalowski Lee | CFO and President | Sell | 4K | $1.80 | $8K | 49K |
| 2025-02-24 | Violette Shelia M. | Chief Scientific Officer | Grant | 38K | $0.00 | $0 | 61K |
| 2025-02-24 | Campagna Jason | Chief Medical Officer | Grant | 38K | $0.00 | $0 | 38K |
| 2025-02-24 | Morrison Jodie Pope | CEO | Grant | 132K | $0.00 | $0 | 132K |
| 2025-02-24 | Kalowski Lee | CFO and President | Grant | 53K | $0.00 | $0 | 53K |
| 2024-10-15 | Violette Shelia M. | Chief Scientific Officer | Exercise or conversion | 6K | $7.29 | $44K | 24K |
| 2024-10-11 | Violette Shelia M. | Chief Scientific Officer | Exercise or conversion | 5K | $3.12 | $14K | 18K |
| 2024-10-08 | Violette Shelia M. | Chief Scientific Officer | Exercise or conversion | 13K | $3.12 | $41K | 13K |
| 2024-03-25 | TZIANABOS ARTHUR | Director | Sell | 265 | $24.20 | $6K | 8K |
| 2024-03-25 | TZIANABOS ARTHUR | Director | Exercise or conversion | 1K | price not stated in the filing | not stated | 8K |
| 2024-03-25 | Michaud Charles Jr | See Remarks | Sell | 75 | $24.20 | $2K | 927 |
| 2024-03-25 | Alloway Paul | See Remarks | Sell | 268 | $24.21 | $6K | 3K |
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. JSON2 Form 144 notices on file for QTTB worth $109K at the prices reported; 0 in the last 90 days worth $0. Latest: JODIE MORRISON filed on 2025-12-02 to sell 22,506 shares ($78K) from 2025-12-02.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2025-12-02 | JODIE MORRISONOfficer, Director | 23K | $78K | 0.183% | 2025-12-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-02 | LEE KALOWSKIOfficer | 9K | $31K | 0.074% | 2025-12-02 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first, 50 of 62 shown. JSON23 holders report 5% or more of QTTB in their latest filing, 2 on Schedule 13D (active intent). The largest reported stake is ORBIMED ADVISORS LLC at 13.9% of the class (4,127,987 shares), filed 2026-07-20 for an event on 2026-07-16.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-28 | 13G | BANK OF AMERICA CORP /DE/parent holding company | 2.2M | 7.4% | 2026-09-30 |
| 2026-10-09 | 13G | Frazier Life Sciences Public Fund, L.P.partnership | 1.8M | 5.9% | 2026-10-02 |
| 2026-10-09 | 13G | FHMLSP, L.P.partnership | 1.8M | 5.9% | 2026-10-02 |
| 2026-10-09 | 13G | FHMLSP, L.L.C.other entity | 1.8M | 5.9% | 2026-10-02 |
| 2026-10-09 | 13G | FHMLS XII, L.P.partnership | 125K | 0.4% | 2026-10-02 |
| 2026-10-09 | 13G | Frazier Life Sciences XII, L.P.partnership | 125K | 0.4% | 2026-10-02 |
| 2026-10-09 | 13G | FHMLS XII, L.L.C.other entity | 125K | 0.4% | 2026-10-02 |
| 2026-10-09 | 13G | FHMLS XI, L.P.partnership | 23K | 0.1% | 2026-10-02 |
| 2026-10-09 | 13G | FHMLS XI, L.L.C.other entity | 23K | 0.1% | 2026-10-02 |
| 2026-10-09 | 13G | Frazier Life Sciences XI, L.P.partnership | 23K | 0.1% | 2026-10-02 |
| 2026-08-14 | 13G/Ano. 2 | Point72 Capital Advisors, Inc.corporation | 1.2M | 5.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 2 | Steven A. Cohenindividual | 1.2M | 5.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 2 | Point72 Asset Management, L.P.partnership | 1.2M | 5.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Alex Silversteinparent holding company, individual | 0 | 0.0% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Sirenia Capital Management LPinvestment adviser, partnership | 0 | 0.0% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 2 | James Silvermanindividual | 931K | 5.5% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 2 | Opaleye, L.P.partnership | 931K | 5.5% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 2 | Opaleye Management Inc.investment adviser, corporation | 931K | 5.5% | 2026-06-30 |
| 2026-07-20 | 13D/Ano. 4 | ORBIMED ADVISORS LLCinvestment adviser | 4.1M | 13.9% | 2026-07-16 |
| 2026-07-20 | 13D/Ano. 4 | ORBIMED CAPITAL GP VII LLCother entity | 3.5M | 11.8% | 2026-07-16 |
| 2026-07-20 | 13D/Ano. 4 | OrbiMed Genesis GP LLCother entity | 625K | 2.1% | 2026-07-16 |
| 2026-07-10 | 13G | Aaron Davisparent holding company, individual | 3.1M | 13.3% | 2026-06-30 |
| 2026-07-10 | 13G | Boxer Capital Management, LLCinvestment adviser | 3.1M | 13.3% | 2026-06-30 |
| 2026-07-10 | 13G | Boxer Holdings, LPparent holding company, partnership | 3.1M | 13.3% | 2026-06-30 |
| 2026-07-10 | 13G | Boxer Holdings GP, LLCparent holding company | 3.1M | 13.3% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Carlyle Holdings I GP Sub L.L.C.other entity | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | The Carlyle Group Inc.corporation | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Carlyle Holdings I GP Inc.corporation | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Carlyle Genesis UK LLCother entity | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Carlyle Investment Management L.L.C.other entity | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Carlyle Holdings I L.P.partnership | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Abingworth LLPpartnership | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | Abingworth Bioventures VII LPpartnership | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | TC Group, L.L.C.other entity | 692K | 4.1% | 2026-06-30 |
| 2026-07-06 | 13G/Ano. 1 | CG Subsidiary Holdings L.L.C.other entity | 692K | 4.1% | 2026-06-30 |
| 2026-06-04 | 13G | Rajeev Shahparent holding company, individual | 2.3M | 9.8% | 2026-05-28 |
| 2026-06-04 | 13G | RA Capital Management, L.P.investment adviser, partnership | 2.3M | 9.8% | 2026-05-28 |
| 2026-06-04 | 13G | Peter Kolchinskyparent holding company, individual | 2.3M | 9.8% | 2026-05-28 |
| 2026-06-04 | 13G | RA Capital Healthcare Fund, L.P.partnership | 2.3M | 9.8% | 2026-05-28 |
| 2026-06-04 | 13G | LAMPERT MARK Nindividual | 2.4M | 10.0% | 2026-05-28 |
| 2026-06-04 | 13G | BVF INC/ILcorporation | 2.4M | 10.0% | 2026-05-28 |
| 2026-06-04 | 13G | BVF PARTNERS L P/ILinvestment adviser, partnership | 2.4M | 10.0% | 2026-05-28 |
| 2026-06-04 | 13G | BVF GP HOLDINGS LLCother entity | 2.2M | 9.2% | 2026-05-28 |
| 2026-06-04 | 13G | BIOTECHNOLOGY VALUE FUND L Ppartnership | 1.2M | 5.3% | 2026-05-28 |
| 2026-06-04 | 13G | BVF I GP LLCother entity | 1.2M | 5.3% | 2026-05-28 |
| 2026-06-04 | 13G | BVF II GP LLCother entity | 929K | 3.9% | 2026-05-28 |
| 2026-06-04 | 13G | BIOTECHNOLOGY VALUE FUND II LPpartnership | 929K | 3.9% | 2026-05-28 |
| 2026-06-04 | 13G | Biotechnology Value Trading Fund OS LPpartnership | 155K | 0.7% | 2026-05-28 |
| 2026-06-04 | 13G | BVF Partners OS Ltd.corporation | 155K | 0.7% | 2026-05-28 |
| 2026-05-28 | 13D/Ano. 1 | ATLAS VENTURE ASSOCIATES X, L.P.partnership | 864K | 3.6% | 2026-05-26 |
13F holders
Tracked managers holding QTTB at their latest 13F. JSON5 of the 30 tracked managers held QTTB at their latest 13F, $19.5M in total at quarter-end prices. Point72 Asset Management is the largest at $14.9M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Point72 Asset Management | 2026-06-30 | 1.2M | $14.9M | 0.02% | new |
| Renaissance Technologies | 2026-06-30 | 180K | $2.3M | 0.00% | -27K |
| Citadel Advisors | 2026-06-30 | 121K | $1.5M | 0.00% | +105K |
| Two Sigma Investments | 2026-06-30 | 50K | $632K | 0.00% | +7K |
| Millennium Management | 2026-06-30 | 11K | $139K | 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
Q32 Bio 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 Q32 Bio (QTTB), SEC CIK 1661998, listed on Nasdaq. 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
- 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 2025-12-02.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 2026-10-28.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 2026-08-05.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 2026-10-06.JSON and CSV
- Company record
- EDGAR filing index for CIK 1661998Ticker, 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 QTTB is sold short?
5,652,682 shares were held short at the 2026-10-15 settlement, 5.3 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 QTTB's daily short volume?
On 2026-11-02, 62,416 of the 101,160 QTTB shares reported to FINRA were sold short, 61.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does QTTB have fails to deliver?
The SEC's latest file shows 1,442 QTTB shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are QTTB insiders buying or selling?
Insiders at QTTB reported 6 open-market sells worth $320K in the last 90 days and no open-market buys. Latest filing: Kalowski Lee (CFO and President) on 2026-10-06.
Have QTTB insiders filed to sell?
2 Form 144 notices on file for QTTB worth $109K at the prices reported; 0 in the last 90 days worth $0. Latest: JODIE MORRISON filed on 2025-12-02 to sell 22,506 shares ($78K) from 2025-12-02.
Who owns 5% or more of QTTB?
23 holders report 5% or more of QTTB in their latest filing, 2 on Schedule 13D (active intent). The largest reported stake is ORBIMED ADVISORS LLC at 13.9% of the class (4,127,987 shares), filed 2026-07-20 for an event on 2026-07-16.
Which tracked 13F managers own QTTB?
5 of the 30 tracked 13F managers held QTTB shares at their latest filing, $19.5M in all. The largest: Steve Cohen's Point72 Asset Management (1.2M shares, $14.9M), Renaissance Technologies (180K shares, $2.3M), Ken Griffin's Citadel Advisors (121K shares, $1.5M), Two Sigma Investments (50K shares, $632K), Izzy Englander's Millennium Management (11K shares, $139K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.