Century Therapeutics (IPSC)
Century Therapeutics 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 biological products, (no diagnostic substances).
29.1M
Short interest
settlement 2026-10-15
29.2
Days to cover
-21.7 days vs prior
75.9%
Short share of volume
2026-11-02
40,630
Fails to deliver
settlement 2026-10-14
Thu 12 Nov
Next earnings
estimated date
-$10K
Insider flow, 90 days
0 buys, 4 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 IPSC is 29,133,325 shares, down 221,305 shares over the last month. Over the last 48 readings it ranged from 246,333 shares (15 December 2025) to 29,815,354 shares (31 July 2026). The latest reading sits at the top of that range. At the reported average volume of 996K shares a day that is 29.2 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 29,133,325 | -0.3% | 996,287 | 29.24 |
| 2026-09-30 | 29,218,775 | -0.5% | 573,911 | 50.91 |
| 2026-09-15 | 29,354,630 | -0.6% | 373,300 | 78.64 |
| 2026-08-31 | 29,528,941 | +0.5% | 418,031 | 70.64 |
| 2026-08-14 | 29,370,152 | -1.5% | 573,918 | 51.17 |
| 2026-07-31 | 29,815,354 | +5.0% | 732,466 | 40.71 |
| 2026-07-15 | 28,381,612 | +21.0% | 1,292,097 | 21.97 |
| 2026-06-30 | 23,456,373 | +52.2% | 3,001,790 | 7.81 |
| 2026-06-15 | 15,410,355 | +23.6% | 975,904 | 15.79 |
| 2026-05-29 | 12,466,530 | +2.1% | 921,555 | 13.53 |
| 2026-05-15 | 12,209,216 | +1.4% | 653,371 | 18.69 |
| 2026-04-30 | 12,045,305 | +9.9% | 871,276 | 13.82 |
| 2026-04-15 | 10,964,616 | +6.6% | 1,364,856 | 8.03 |
| 2026-03-31 | 10,289,543 | +19.3% | 1,839,949 | 5.59 |
| 2026-03-13 | 8,626,834 | +36.2% | 1,376,960 | 6.27 |
| 2026-02-27 | 6,332,990 | +33.6% | 752,742 | 8.41 |
| 2026-02-13 | 4,739,771 | +39.8% | 1,071,675 | 4.42 |
| 2026-01-30 | 3,391,589 | +320.2% | 1,809,997 | 1.87 |
| 2026-01-15 | 807,117 | +148.1% | 3,991,795 | 1.00 |
| 2025-12-31 | 325,386 | +32.1% | 1,916,134 | 1.00 |
| 2025-12-15 | 246,333 | -59.5% | 826,473 | 1.00 |
| 2025-11-28 | 608,275 | +22.3% | 1,002,580 | 1.00 |
| 2025-11-14 | 497,543 | +42.0% | 1,935,959 | 1.00 |
| 2025-10-31 | 350,488 | +0.4% | 887,941 | 1.00 |
| 2025-10-15 | 349,010 | -74.9% | 1,001,250 | 1.00 |
| 2025-09-30 | 1,391,262 | -5.0% | 355,436 | 3.91 |
| 2025-09-15 | 1,464,530 | -5.9% | 512,492 | 2.86 |
| 2025-08-29 | 1,556,916 | +6.7% | 707,989 | 2.20 |
| 2025-08-15 | 1,458,876 | +8.9% | 691,287 | 2.11 |
| 2025-07-31 | 1,339,000 | -3.9% | 1,178,854 | 1.14 |
| 2025-07-15 | 1,393,002 | -6.8% | 773,384 | 1.80 |
| 2025-06-30 | 1,494,787 | -35.5% | 1,282,681 | 1.17 |
| 2025-06-13 | 2,316,058 | -3.9% | 1,097,487 | 2.11 |
| 2025-05-30 | 2,408,946 | -5.8% | 847,430 | 2.84 |
| 2025-05-15 | 2,556,820 | -7.0% | 605,460 | 4.22 |
| 2025-04-30 | 2,750,001 | -21.3% | 819,941 | 3.35 |
| 2025-04-15 | 3,493,654 | +11.5% | 532,739 | 6.56 |
| 2025-03-31 | 3,133,312 | -7.2% | 536,605 | 5.84 |
| 2025-03-14 | 3,375,202 | -0.9% | 415,598 | 8.12 |
| 2025-02-28 | 3,405,739 | +9.0% | 503,612 | 6.76 |
| 2025-02-14 | 3,125,318 | +1.8% | 355,953 | 8.78 |
| 2025-01-31 | 3,068,788 | +1.5% | 549,581 | 5.58 |
| 2025-01-15 | 3,024,409 | -2.0% | 562,758 | 5.37 |
| 2024-12-31 | 3,086,165 | +14.0% | 625,552 | 4.93 |
| 2024-12-13 | 2,707,165 | -5.6% | 811,201 | 3.34 |
| 2024-11-29 | 2,867,338 | +26.9% | 684,382 | 4.19 |
| 2024-11-15 | 2,259,285 | -35.9% | 491,639 | 4.60 |
| 2024-10-31 | 3,524,985 | +6.0% | 350,085 | 10.07 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of IPSC volume is 75.9%, up 18.9 points over the last five sessions. Over the last 30 readings it ranged from 18.1% (28 October 2026) to 95.8% (22 October 2026). The latest reading is 21.5 points above the 30-session average of 54.4%, on 604K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 458K | 604K | 75.9% | 0 |
| 2026-10-30 | 121K | 337K | 35.9% | 0 |
| 2026-10-29 | 688K | 995K | 69.2% | 0 |
| 2026-10-28 | 63K | 349K | 18.1% | 0 |
| 2026-10-27 | 72K | 127K | 56.9% | 0 |
| 2026-10-26 | 108K | 189K | 57.0% | 0 |
| 2026-10-23 | 419K | 484K | 86.6% | 0 |
| 2026-10-22 | 1.2M | 1.2M | 95.8% | 0 |
| 2026-10-21 | 1.1M | 1.2M | 94.3% | 0 |
| 2026-10-20 | 413K | 571K | 72.4% | 0 |
| 2026-10-19 | 112K | 216K | 52.0% | 0 |
| 2026-10-16 | 150K | 335K | 44.9% | 0 |
| 2026-10-15 | 194K | 360K | 53.9% | 0 |
| 2026-10-14 | 289K | 478K | 60.5% | 0 |
| 2026-10-13 | 113K | 206K | 54.5% | 400 |
| 2026-10-12 | 97K | 158K | 61.4% | 0 |
| 2026-10-09 | 260K | 358K | 72.8% | 1,353 |
| 2026-10-08 | 225K | 560K | 40.2% | 780 |
| 2026-10-07 | 79K | 355K | 22.2% | 4,518 |
| 2026-10-06 | 501K | 1.8M | 28.3% | 38,220 |
| 2026-10-05 | 126K | 422K | 29.8% | 0 |
| 2026-10-02 | 163K | 390K | 41.7% | 0 |
| 2026-10-01 | 117K | 167K | 70.4% | 0 |
| 2026-09-30 | 99K | 228K | 43.3% | 0 |
| 2026-09-29 | 55K | 136K | 40.5% | 0 |
| 2026-09-28 | 78K | 125K | 62.1% | 0 |
| 2026-09-25 | 90K | 181K | 49.4% | 8,400 |
| 2026-09-24 | 84K | 208K | 40.6% | 0 |
| 2026-09-23 | 73K | 162K | 45.0% | 0 |
| 2026-09-22 | 59K | 103K | 57.6% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 14 October 2026, the fails-to-deliver balance in IPSC is 40,630 shares, up 36,277 shares over the last settlement date. Over the last 30 readings it ranged from 6 shares (10 July 2026) to 438,766 shares (8 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-14 | 40,630 | $1.38 | $56K |
| 2026-10-06 | 4,353 | $1.48 | $6K |
| 2026-10-02 | 10,552 | $1.61 | $17K |
| 2026-09-28 | 19,984 | $1.67 | $33K |
| 2026-09-25 | 10,186 | $1.69 | $17K |
| 2026-09-17 | 119,660 | $1.86 | $223K |
| 2026-09-14 | 17,147 | $1.94 | $33K |
| 2026-09-11 | 32,650 | $1.94 | $63K |
| 2026-09-04 | 2,811 | $2.09 | $6K |
| 2026-08-27 | 143 | $2.14 | $306 |
| 2026-08-24 | 237 | $2.07 | $491 |
| 2026-08-17 | 915 | $1.92 | $2K |
| 2026-08-14 | 21,360 | $1.93 | $41K |
| 2026-08-13 | 52,312 | $1.96 | $103K |
| 2026-08-12 | 33,396 | $2.06 | $69K |
| 2026-08-11 | 33,396 | $1.98 | $66K |
| 2026-08-06 | 61,722 | $1.96 | $121K |
| 2026-08-04 | 4,878 | $1.98 | $10K |
| 2026-07-24 | 119 | $2.17 | $258 |
| 2026-07-17 | 15,504 | $2.26 | $35K |
| 2026-07-16 | 505 | $2.17 | $1K |
| 2026-07-13 | 31,680 | $2.25 | $71K |
| 2026-07-10 | 6 | $2.31 | $14 |
| 2026-07-01 | 52,529 | $2.45 | $129K |
| 2026-06-30 | 58,345 | $2.41 | $141K |
| 2026-06-23 | 1,950 | $2.30 | $4K |
| 2026-06-15 | 1,304 | $2.25 | $3K |
| 2026-06-10 | 384,482 | $2.21 | $850K |
| 2026-06-09 | 384,482 | $2.12 | $815K |
| 2026-06-08 | 438,766 | $2.13 | $935K |
Insider trades
SEC Form 4, newest first. JSONInsiders at IPSC reported 4 open-market sells worth $10K in the last 90 days and no open-market buys. Latest filing: Carr Douglas (SVP Finance & Operations) on 2026-09-14.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | Carr Douglas | SVP Finance & Operations | Sell | 2K | $1.93 | $3K | 503K |
| 2026-09-14 | Russotti Gregory | See Remarks | Sell | 3K | $1.93 | $5K | 509K |
| 2026-09-11 | Pfeiffenberger Brent | President and CEO | Tax withholding | 14K | $1.94 | $27K | 3.6M |
| 2026-09-08 | Russotti Gregory | See Remarks | Sell | 534 | $2.05 | $1K | 512K |
| 2026-09-08 | Carr Douglas | SVP Finance & Operations | Sell | 254 | $2.05 | $521 | 505K |
| 2026-09-04 | Pfeiffenberger Brent | President and CEO | Tax withholding | 463 | $2.11 | $977 | 3.6M |
| 2026-08-14 | Pfeiffenberger Brent | President and CEO | Tax withholding | 31K | $1.92 | $60K | 3.6M |
| 2026-08-03 | Carr Douglas | SVP Finance & Operations | Sell | 275 | $1.98 | $544 | 505K |
| 2026-06-12 | Carr Douglas | SVP Finance & Operations | Sell | 2K | $2.23 | $4K | 505K |
| 2026-06-12 | Russotti Gregory | See Remarks | Sell | 3K | $2.23 | $6K | 512K |
| 2026-06-11 | Cowan Chad | Chief Scientific Officer | Tax withholding | 358 | $2.24 | $802 | 1.2M |
| 2026-06-11 | Pfeiffenberger Brent | President and CEO | Tax withholding | 14K | $2.24 | $31K | 3.7M |
| 2026-06-08 | Russotti Gregory | See Remarks | Sell | 524 | $2.11 | $1K | 515K |
| 2026-06-08 | Carr Douglas | SVP Finance & Operations | Sell | 249 | $2.11 | $526 | 507K |
| 2026-06-05 | Pfeiffenberger Brent | President and CEO | Tax withholding | 463 | $2.13 | $986 | 3.7M |
| 2026-05-15 | Pfeiffenberger Brent | President and CEO | Tax withholding | 31K | $2.34 | $73K | 3.7M |
| 2026-05-04 | Carr Douglas | SVP Finance & Operations | Sell | 264 | $2.34 | $618 | 507K |
| 2026-04-01 | Cowan Chad | Chief Scientific Officer | Tax withholding | 1K | $2.19 | $3K | 1.2M |
| 2026-03-12 | Russotti Gregory | See Remarks | Sell | 10K | $2.55 | $26K | 515K |
| 2026-03-12 | Carr Douglas | SVP Finance & Operations | Sell | 7K | $2.55 | $18K | 507K |
| 2026-03-11 | Cowan Chad | Chief Scientific Officer | Tax withholding | 1K | $2.73 | $4K | 1.2M |
| 2026-03-11 | Pfeiffenberger Brent | President and CEO | Tax withholding | 55K | $2.73 | $151K | 3.7M |
| 2026-03-09 | Russotti Gregory | See Remarks | Sell | 479 | $2.54 | $1K | 526K |
| 2026-03-09 | Carr Douglas | SVP Finance & Operations | Sell | 247 | $2.54 | $626 | 514K |
| 2026-03-06 | Pfeiffenberger Brent | President and CEO | Tax withholding | 463 | $2.56 | $1K | 3.8M |
| 2026-02-13 | Pfeiffenberger Brent | President and CEO | Tax withholding | 31K | $1.75 | $55K | 3.8M |
| 2026-02-03 | Carr Douglas | SVP Finance & Operations | Sell | 323 | $1.82 | $589 | 515K |
| 2026-02-02 | Cowan Chad | Chief Scientific Officer | Grant | 135K | $0.00 | $0 | 1.2M |
| 2026-02-02 | Pfeiffenberger Brent | President and CEO | Grant | 475K | $0.00 | $0 | 3.8M |
| 2026-02-02 | Russotti Gregory | See Remarks | Grant | 135K | $0.00 | $0 | 526K |
| 2026-02-02 | Carr Douglas | SVP Finance & Operations | Grant | 110K | $0.00 | $0 | 515K |
| 2026-01-02 | Cowan Chad | Chief Scientific Officer | Tax withholding | 2K | $0.99 | $2K | 1.0M |
| 2025-12-22 | Cowan Chad | Chief Scientific Officer | Buy | 58K | $0.85 | $49K | 1.0M |
| 2025-12-12 | Pfeiffenberger Brent | President and CEO | Buy | 52K | $0.58 | $30K | 3.3M |
| 2025-12-10 | Pfeiffenberger Brent | President and CEO | Tax withholding | 463 | $0.53 | $244 | 3.3M |
| 2025-12-08 | Russotti Gregory | See Remarks | Sell | 526 | $0.53 | $280 | 391K |
| 2025-12-08 | Carr Douglas | SVP Finance & Operations | Sell | 257 | $0.53 | $137 | 405K |
| 2025-11-20 | Cowan Chad | Chief Scientific Officer | Sell | 5K | $0.50 | $3K | 987K |
| 2025-11-19 | Pfeiffenberger Brent | President and CEO | Buy | 35K | $0.50 | $17K | 3.3M |
| 2025-11-17 | Pfeiffenberger Brent | President and CEO | Sell | 32K | $0.45 | $15K | 3.2M |
| 2025-11-03 | Carr Douglas | SVP Finance & Operations | Sell | 292 | $0.59 | $171 | 405K |
| 2025-09-18 | Cowan Chad | Chief Scientific Officer | Grant | 763K | $0.00 | $0 | 992K |
| 2025-09-08 | Pfeiffenberger Brent | President and CEO | Sell | 488 | $0.50 | $244 | 3.3M |
| 2025-09-08 | Russotti Gregory | See Remarks | Sell | 539 | $0.50 | $270 | 392K |
| 2025-09-08 | Carr Douglas | SVP Finance & Operations | Sell | 263 | $0.50 | $132 | 405K |
| 2025-08-14 | Pfeiffenberger Brent | President and CEO | Grant | 1.6M | $0.00 | $0 | 3.3M |
| 2025-08-04 | Carr Douglas | SVP Finance & Operations | Sell | 296 | $0.53 | $158 | 406K |
| 2025-06-09 | Russotti Gregory | See Remarks | Sell | 526 | $0.62 | $326 | 392K |
| 2025-06-09 | Pfeiffenberger Brent | President and CEO | Sell | 475 | $0.62 | $295 | 1.7M |
| 2025-06-09 | Farid Adrienne | Chief Operations Officer | Sell | 552 | $0.62 | $342 | 250K |
| 2025-06-09 | Carr Douglas | SVP Finance & Operations | Sell | 5K | $0.62 | $3K | 406K |
| 2025-05-16 | Pfeiffenberger Brent | President and CEO | Sell | 30K | $0.55 | $16K | 1.7M |
| 2025-05-05 | Carr Douglas | SVP Finance & Operations | Sell | 295 | $0.55 | $162 | 411K |
| 2025-05-05 | Farid Adrienne | Chief Operations Officer | Sell | 1K | $0.55 | $563 | 251K |
| 2025-03-11 | Carr Douglas | SVP Finance & Operations | Grant | 96K | $0.00 | $0 | 411K |
| 2025-03-11 | Farid Adrienne | Chief Operations Officer | Grant | 120K | $0.00 | $0 | 252K |
| 2025-03-11 | Russotti Gregory | See Remarks | Grant | 120K | $0.00 | $0 | 393K |
| 2025-03-11 | Pfeiffenberger Brent | President and CEO | Grant | 522K | $0.00 | $0 | 1.7M |
| 2025-03-11 | Cowan Chad | Chief Scientific Officer | Grant | 20K | $0.00 | $0 | 230K |
| 2025-03-11 | Conn Morgan | Chief Finanical Officer | Grant | 20K | $0.00 | $0 | 80K |
| 2025-03-10 | Carr Douglas | SVP Finance & Operations | Sell | 1K | $0.62 | $769 | 316K |
| 2025-03-10 | Farid Adrienne | Chief Operations Officer | Sell | 2K | $0.62 | $1K | 132K |
| 2025-03-10 | Russotti Gregory | See Remarks | Sell | 2K | $0.62 | $1K | 273K |
| 2025-03-10 | Pfeiffenberger Brent | President and CEO | Sell | 2K | $0.62 | $1K | 1.2M |
| 2025-02-18 | Pfeiffenberger Brent | President and CEO | Sell | 35K | $0.78 | $27K | 1.2M |
| 2025-02-03 | Carr Douglas | SVP Finance & Operations | Sell | 351 | $0.78 | $274 | 317K |
| 2025-02-03 | Farid Adrienne | Chief Operations Officer | Sell | 1K | $0.78 | $822 | 134K |
| 2024-12-04 | Pfeiffenberger Brent | President and CEO | Tax withholding | 243K | $1.44 | $351K | 1.2M |
| 2024-11-04 | Carr Douglas | SVP Finance & Operations | Sell | 283 | $1.23 | $348 | 317K |
| 2024-11-04 | Farid Adrienne | Chief Operations Officer | Sell | 1K | $1.23 | $1K | 135K |
| 2024-11-01 | Carr Douglas | SVP Finance & Operations | Tax withholding | 17K | $1.26 | $21K | 317K |
| 2024-10-14 | Conn Morgan | Chief Finanical Officer | Grant | 60K | $0.00 | $0 | 60K |
| 2024-10-01 | Cowan Chad | Chief Scientific Officer | Grant | 74K | $0.00 | $0 | 211K |
| 2024-09-12 | Quimi Daphne | Director | Buy | 5K | $1.53 | $8K | 5K |
| 2024-08-05 | Carr Douglas | SVP Finance & Operations | Sell | 289 | $1.83 | $529 | 334K |
| 2024-08-05 | Farid Adrienne | Chief Operations Officer | Sell | 1K | $1.83 | $2K | 136K |
| 2024-07-26 | Russotti Gregory | See Remarks | Sell | 586 | $2.50 | $1K | 275K |
| 2024-07-24 | Russotti Gregory | See Remarks | Sell | 2K | $2.52 | $4K | 276K |
| 2024-07-23 | Russotti Gregory | See Remarks | Sell | 200 | $2.50 | $500 | 277K |
| 2024-06-20 | Russotti Gregory | See Remarks | Sell | 5K | $2.84 | $14K | 277K |
| 2024-06-07 | Carr Douglas | SVP Finance & Operations | Grant | 17K | $0.00 | $0 | 334K |
| 2024-06-05 | Russotti Gregory | See Remarks | Sell | 5K | $3.00 | $15K | 282K |
| 2024-05-20 | Russotti Gregory | See Remarks | Sell | 5K | $3.00 | $15K | 287K |
| 2024-05-06 | Russotti Gregory | See Remarks | Sell | 5K | $3.12 | $16K | 292K |
| 2024-05-03 | Farid Adrienne | Chief Operations Officer | Sell | 913 | $3.11 | $3K | 137K |
| 2024-05-03 | Carr Douglas | SVP Finance & Operations | Sell | 257 | $3.11 | $799 | 317K |
| 2024-04-22 | Russotti Gregory | See Remarks | Sell | 5K | $3.10 | $16K | 297K |
| 2024-03-07 | Farid Adrienne | Chief Operations Officer | Sell | 23K | $5.14 | $117K | 114K |
| 2024-03-07 | Farid Adrienne | Chief Operations Officer | Exercise or conversion | 23K | $1.03 | $24K | 137K |
| 2024-03-07 | Levitsky Hyam | President of R&D | Grant | 24K | $0.00 | $0 | 24K |
| 2024-03-07 | Farid Adrienne | Chief Operations Officer | Grant | 24K | $0.00 | $0 | 138K |
| 2024-03-07 | Russotti Gregory | See Remarks | Grant | 24K | $0.00 | $0 | 302K |
| 2024-03-07 | Carr Douglas | SVP Finance & Operations | Grant | 14K | $0.00 | $0 | 318K |
| 2024-03-07 | Pfeiffenberger Brent | President and CEO | Grant | 17K | $0.00 | $0 | 1.5M |
| 2024-03-06 | Farid Adrienne | Chief Operations Officer | Exercise or conversion | 31K | $1.03 | $32K | 145K |
| 2024-03-06 | Farid Adrienne | Chief Operations Officer | Sell | 31K | $4.96 | $152K | 114K |
| 2024-02-16 | Farid Adrienne | Chief Operations Officer | Exercise or conversion | 485 | $1.03 | $500 | 115K |
| 2024-02-16 | Farid Adrienne | Chief Operations Officer | Sell | 485 | $4.86 | $2K | 114K |
| 2024-02-06 | Farid Adrienne | Chief Operations Officer | Sell | 2K | $4.49 | $8K | 114K |
| 2024-02-06 | Carr Douglas | SVP Finance & Operations | Sell | 557 | $4.49 | $3K | 304K |
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. JSON12 Form 144 notices on file for IPSC worth $61K at the prices reported; 3 in the last 90 days worth $9K. Latest: Russotti Gregory filed on 2026-09-14 to sell 2,587 shares ($5K) from 2026-09-14.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-09-14 | Russotti GregoryOfficer | 3K | $5K | 0.001% | 2026-09-14 | Fidelity Brokerage Services LLC |
| 2026-09-14 | Carr DouglasOfficer | 2K | $3K | 0.001% | 2026-09-14 | Fidelity Brokerage Services LLC |
| 2026-09-08 | Russotti GregoryOfficer | 534 | $1K | 0.000% | 2026-09-08 | Fidelity Brokerage Services LLC |
| 2026-06-12 | Russotti GregoryOfficer | 3K | $6K | 0.001% | 2026-06-12 | Fidelity Brokerage Services LLC |
| 2026-06-08 | Russotti GregoryOfficer | 524 | $1K | 0.000% | 2026-06-08 | Fidelity Brokerage Services LLC |
| 2026-03-12 | Russotti GregoryOfficer | 10K | $26K | 0.006% | 2026-03-12 | Fidelity Brokerage Services LLC |
| 2026-03-09 | Russotti GregoryOfficer | 479 | $1K | 0.001% | 2026-03-09 | Fidelity Brokerage Services LLC |
| 2025-12-09 | Pfeiffenberger BrentOfficer, Director | 0 | $0 | 0.000% | 2025-12-08 | Fidelity Brokerage Services LLC |
| 2025-12-08 | Pfeiffenberger BrentOfficer, Director | 476 | $253 | 0.001% | 2025-12-08 | Fidelity Brokerage Services LLC |
| 2025-12-08 | Russotti GregoryOfficer | 526 | $280 | 0.001% | 2025-12-08 | Fidelity Brokerage Services LLC |
| 2025-11-20 | Cowan ChadOfficer | 5K | $3K | 0.006% | 2025-11-20 | Fidelity Brokerage Services LLC |
| 2025-11-17 | Pfeiffenberger BrentOfficer, Director | 32K | $15K | 0.037% | 2025-11-17 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON21 holders report 5% or more of IPSC in their latest filing, all on Schedule 13G (passive). The largest reported stake is RA Capital Management, L.P. at 9.9% of the class (17,944,649 shares), filed 2026-01-16 for an event on 2026-01-09.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-05-15 | 13G | Roderick Wongparent holding company, individual | 13.0M | 7.1% | 2026-03-31 |
| 2026-05-15 | 13G | RTW Investments, LPinvestment adviser, partnership | 13.0M | 7.1% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Point72 Asset Management, L.P.partnership | 6.0M | 3.3% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Point72 Capital Advisors, Inc.corporation | 6.0M | 3.3% | 2026-03-31 |
| 2026-05-15 | 13G/Ano. 2 | Steven A. Cohenindividual | 6.0M | 3.3% | 2026-03-31 |
| 2026-01-16 | 13G | Commodore Capital LPpartnership, investment adviser | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Commodore Capital Master LPpartnership | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Robert Egen Atkinsonparent holding company, individual | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Michael Kramarzindividual, parent holding company | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | VHCP Management EG, LLCother entity | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Venrock Healthcare Capital Partners III, L.P.partnership | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | VHCP Co-Investment Holdings III, LLCother entity | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Venrock Healthcare Capital Partners EG, L.P.partnership | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | VHCP Management III, LLCother entity | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Nimish Shahindividual | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | Bong Y. Kohindividual | 13.0M | 7.1% | 2026-01-09 |
| 2026-01-16 | 13G | RA Capital Management, L.P.investment adviser, partnership | 17.9M | 9.9% | 2026-01-09 |
| 2026-01-16 | 13G | Peter Kolchinskyparent holding company, individual | 17.9M | 9.9% | 2026-01-09 |
| 2026-01-16 | 13G | Rajeev Shahparent holding company, individual | 17.9M | 9.9% | 2026-01-09 |
| 2026-01-16 | 13G | RA Capital Healthcare Fund, L.P.partnership | 17.9M | 9.9% | 2026-01-09 |
| 2026-01-15 | 13G | Chen Yuindividual | 17.8M | 9.9% | 2026-01-09 |
| 2026-01-15 | 13G | TCG Crossover GP II, LLCother entity | 8.9M | 4.9% | 2026-01-09 |
| 2026-01-15 | 13G | TCG Crossover Fund II, L.P.partnership | 8.9M | 4.9% | 2026-01-09 |
| 2026-01-15 | 13G | TCG Crossover GP III, LLCother entity | 8.9M | 4.9% | 2026-01-09 |
| 2026-01-15 | 13G | TCG Crossover Fund III, L.P.partnership | 8.9M | 4.9% | 2026-01-09 |
| 2026-01-15 | 13G | David Kroinparent holding company, individual | 13.5M | 7.3% | 2026-01-08 |
| 2026-01-15 | 13G | Deep Track Capital, LPinvestment adviser, other entity | 13.5M | 7.3% | 2026-01-08 |
| 2026-01-15 | 13G | Deep Track Biotechnology Master Fund, Ltd.corporation | 10.6M | 5.8% | 2026-01-08 |
| 2026-01-15 | 13G | Deep Track Special Opportunities Fund, LP.partnership | 2.9M | 1.6% | 2026-01-08 |
| 2025-11-14 | 13G/Ano. 1 | Bain Capital Life Sciences Opportunities III, LPpartnership | 3.5M | 4.1% | 2025-09-30 |
13F holders
Tracked managers holding IPSC at their latest 13F. JSON5 of the 30 tracked managers held IPSC at their latest 13F, $32.5M in total at quarter-end prices. Point72 Asset Management is the largest at $12.2M (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 |
|---|---|---|---|---|---|
| Point72 Asset Management | 2026-06-30 | 5.0M | $12.2M | 0.01% | -984K |
| Millennium Management | 2026-06-30 | 4.2M | $10.3M | 0.00% | -472K |
| Two Sigma Investments | 2026-06-30 | 2.7M | $6.6M | 0.00% | +328K |
| Renaissance Technologies | 2026-06-30 | 1.3M | $3.1M | 0.00% | +351K |
| Citadel Advisors | 2026-06-30 | 126K | $310K | 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
Century Therapeutics 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 Century Therapeutics (IPSC), SEC CIK 1850119, listed on Nasdaq, classified by the SEC as biological products, (no diagnostic substances). 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 2026-09-14.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 2026-05-15.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 2026-08-12.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-14.JSON and CSV
- Company record
- EDGAR filing index for CIK 1850119Ticker, 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 IPSC is sold short?
29,133,325 shares were held short at the 2026-10-15 settlement, 29.2 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 IPSC's daily short volume?
On 2026-11-02, 458,417 of the 603,846 IPSC shares reported to FINRA were sold short, 75.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does IPSC have fails to deliver?
The SEC's latest file shows 40,630 IPSC shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.
Are IPSC insiders buying or selling?
Insiders at IPSC reported 4 open-market sells worth $10K in the last 90 days and no open-market buys. Latest filing: Carr Douglas (SVP Finance & Operations) on 2026-09-14.
Have IPSC insiders filed to sell?
12 Form 144 notices on file for IPSC worth $61K at the prices reported; 3 in the last 90 days worth $9K. Latest: Russotti Gregory filed on 2026-09-14 to sell 2,587 shares ($5K) from 2026-09-14.
Who owns 5% or more of IPSC?
21 holders report 5% or more of IPSC in their latest filing, all on Schedule 13G (passive). The largest reported stake is RA Capital Management, L.P. at 9.9% of the class (17,944,649 shares), filed 2026-01-16 for an event on 2026-01-09.
Which tracked 13F managers own IPSC?
5 of the 30 tracked 13F managers held IPSC shares at their latest filing, $32.5M in all. The largest: Steve Cohen's Point72 Asset Management (5.0M shares, $12.2M), Izzy Englander's Millennium Management (4.2M shares, $10.3M), Two Sigma Investments (2.7M shares, $6.6M), Renaissance Technologies (1.3M shares, $3.1M), Ken Griffin's Citadel Advisors (126K shares, $310K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.