Curbline Properties (CURB)
Curbline Properties on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on NYSE.
15.8M
Short interest
settlement 2026-09-30
9.8
Days to cover
-0.1 days vs prior
36.7%
Short share of volume
2026-10-23
259
Fails to deliver
settlement 2026-09-30
Mon 8 Feb
Next earnings
estimated date
-$43.6M
Insider flow, 90 days
0 buys, 21 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in CURB is 15,758,442 shares, up 1,828,547 shares over the last month. Over the last 48 readings it ranged from 1,610,145 shares (31 October 2024) to 19,038,889 shares (14 August 2026). At the reported average volume of 1.6M shares a day that is 9.8 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/curb" 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 |
|---|---|---|---|---|
| 2026-09-30 | 15,758,442 | +13.3% | 1,614,766 | 9.76 |
| 2026-09-15 | 13,905,911 | -0.2% | 1,405,764 | 9.89 |
| 2026-08-31 | 13,929,895 | -26.8% | 1,564,879 | 8.90 |
| 2026-08-14 | 19,038,889 | +3.8% | 1,126,432 | 16.90 |
| 2026-07-31 | 18,337,651 | +4.4% | 1,455,094 | 12.60 |
| 2026-07-15 | 17,571,331 | +73.6% | 1,299,843 | 13.52 |
| 2026-06-30 | 10,120,411 | -13.3% | 1,864,983 | 5.43 |
| 2026-06-15 | 11,671,455 | +15.1% | 955,329 | 12.22 |
| 2026-05-29 | 10,141,166 | +7.7% | 660,032 | 15.36 |
| 2026-05-15 | 9,418,828 | +53.6% | 753,287 | 12.50 |
| 2026-04-30 | 6,132,822 | +3.5% | 874,448 | 7.01 |
| 2026-04-15 | 5,923,585 | +12.2% | 661,896 | 8.95 |
| 2026-03-31 | 5,281,150 | +9.6% | 753,418 | 7.01 |
| 2026-03-13 | 4,819,306 | -1.9% | 793,210 | 6.08 |
| 2026-02-27 | 4,910,916 | +7.0% | 1,036,152 | 4.74 |
| 2026-02-13 | 4,590,842 | +1.1% | 1,161,242 | 3.95 |
| 2026-01-30 | 4,542,224 | -13.7% | 689,448 | 6.59 |
| 2026-01-15 | 5,260,069 | +65.3% | 651,397 | 8.08 |
| 2025-12-31 | 3,181,254 | -14.6% | 577,540 | 5.51 |
| 2025-12-15 | 3,726,113 | -13.0% | 1,088,902 | 3.42 |
| 2025-11-28 | 4,281,377 | +3.3% | 582,991 | 7.34 |
| 2025-11-14 | 4,143,919 | +9.4% | 807,912 | 5.13 |
| 2025-10-31 | 3,788,938 | -25.0% | 814,013 | 4.65 |
| 2025-10-15 | 5,050,872 | +3.4% | 524,978 | 9.62 |
| 2025-09-30 | 4,883,080 | -7.7% | 510,018 | 9.57 |
| 2025-09-15 | 5,287,762 | +2.9% | 570,764 | 9.26 |
| 2025-08-29 | 5,138,698 | +12.0% | 600,280 | 8.56 |
| 2025-08-15 | 4,587,377 | +12.5% | 616,835 | 7.44 |
| 2025-07-31 | 4,077,014 | +5.8% | 746,924 | 5.46 |
| 2025-07-15 | 3,854,259 | +0.8% | 446,627 | 8.63 |
| 2025-06-30 | 3,823,460 | +3.8% | 633,869 | 6.03 |
| 2025-06-13 | 3,682,887 | +7.8% | 516,173 | 7.13 |
| 2025-05-30 | 3,415,332 | -1.5% | 404,092 | 8.45 |
| 2025-05-15 | 3,467,264 | -3.6% | 368,242 | 9.42 |
| 2025-04-30 | 3,598,128 | +34.4% | 728,306 | 4.94 |
| 2025-04-15 | 2,678,188 | +35.8% | 960,510 | 2.79 |
| 2025-03-31 | 1,972,792 | -3.3% | 707,077 | 2.79 |
| 2025-03-14 | 2,039,867 | +18.3% | 659,768 | 3.09 |
| 2025-02-28 | 1,724,373 | -8.1% | 521,231 | 3.31 |
| 2025-02-14 | 1,875,463 | -9.5% | 401,751 | 4.67 |
| 2025-01-31 | 2,073,345 | +9.6% | 460,032 | 4.51 |
| 2025-01-15 | 1,891,010 | +3.8% | 802,259 | 2.36 |
| 2024-12-31 | 1,821,166 | +10.2% | 1,041,524 | 1.75 |
| 2024-12-13 | 1,652,175 | -0.3% | 430,893 | 3.83 |
| 2024-11-29 | 1,657,330 | -6.7% | 487,747 | 3.40 |
| 2024-11-15 | 1,777,062 | +10.4% | 489,240 | 3.63 |
| 2024-10-31 | 1,610,145 | -17.6% | 637,368 | 2.53 |
| 2024-10-15 | 1,953,978 | +100.0% | 2,188,890 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of CURB volume is 36.7%, up 0.7 points over the last five sessions. Over the last 30 readings it ranged from 32.9% (30 September 2026) to 83.5% (2 October 2026). The latest reading sits at the bottom of that range. The latest reading is 19.2 points below the 30-session average of 55.9%, on 748K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 274K | 748K | 36.7% | 23 |
| 2026-10-22 | 323K | 675K | 47.9% | 0 |
| 2026-10-21 | 268K | 585K | 45.9% | 0 |
| 2026-10-20 | 269K | 487K | 55.3% | 199 |
| 2026-10-19 | 177K | 310K | 57.1% | 23 |
| 2026-10-16 | 107K | 297K | 35.9% | 2,725 |
| 2026-10-15 | 111K | 277K | 40.2% | 15 |
| 2026-10-14 | 192K | 345K | 55.5% | 600 |
| 2026-10-13 | 142K | 302K | 47.1% | 23 |
| 2026-10-12 | 169K | 373K | 45.5% | 0 |
| 2026-10-09 | 155K | 339K | 45.8% | 4 |
| 2026-10-08 | 130K | 253K | 51.4% | 0 |
| 2026-10-07 | 88K | 150K | 58.3% | 0 |
| 2026-10-06 | 167K | 224K | 74.5% | 87 |
| 2026-10-05 | 250K | 424K | 59.1% | 0 |
| 2026-10-02 | 806K | 965K | 83.5% | 0 |
| 2026-10-01 | 266K | 705K | 37.7% | 0 |
| 2026-09-30 | 125K | 380K | 32.9% | 0 |
| 2026-09-29 | 158K | 261K | 60.7% | 13 |
| 2026-09-28 | 112K | 224K | 49.9% | 0 |
| 2026-09-25 | 135K | 257K | 52.6% | 0 |
| 2026-09-24 | 147K | 277K | 52.9% | 0 |
| 2026-09-23 | 131K | 254K | 51.6% | 2,207 |
| 2026-09-22 | 169K | 280K | 60.2% | 56 |
| 2026-09-21 | 236K | 336K | 70.3% | 13 |
| 2026-09-18 | 190K | 240K | 79.0% | 1 |
| 2026-09-17 | 211K | 264K | 79.9% | 152 |
| 2026-09-16 | 263K | 376K | 69.8% | 0 |
| 2026-09-15 | 316K | 446K | 71.0% | 178 |
| 2026-09-14 | 246K | 363K | 67.7% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in CURB is 259 shares, up 51 shares over the last settlement date. Over the last 30 readings it ranged from 22 shares (23 September 2026) to 270,747 shares (8 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 259 | $27.92 | $7K |
| 2026-09-24 | 208 | $28.16 | $6K |
| 2026-09-23 | 22 | $28.80 | $634 |
| 2026-09-21 | 99 | $28.33 | $3K |
| 2026-09-18 | 83 | $28.74 | $2K |
| 2026-09-16 | 3,584 | $29.24 | $105K |
| 2026-09-09 | 110 | $29.68 | $3K |
| 2026-08-31 | 877 | $29.99 | $26K |
| 2026-08-24 | 1,183 | $29.39 | $35K |
| 2026-08-14 | 437 | $30.05 | $13K |
| 2026-08-13 | 201 | $30.09 | $6K |
| 2026-08-10 | 693 | $29.62 | $21K |
| 2026-08-07 | 1,029 | $29.59 | $30K |
| 2026-08-06 | 453 | $30.06 | $14K |
| 2026-07-31 | 19,384 | $30.58 | $593K |
| 2026-07-27 | 3,490 | $31.56 | $110K |
| 2026-07-23 | 215 | $30.81 | $7K |
| 2026-07-21 | 5,242 | $31.28 | $164K |
| 2026-07-13 | 92,403 | $30.41 | $2.8M |
| 2026-07-09 | 242,983 | $30.50 | $7.4M |
| 2026-07-08 | 270,747 | $30.65 | $8.3M |
| 2026-07-07 | 106 | $30.12 | $3K |
| 2026-07-06 | 54,044 | $30.34 | $1.6M |
| 2026-07-02 | 6,903 | $30.00 | $207K |
| 2026-07-01 | 30,903 | $30.40 | $939K |
| 2026-06-30 | 16,044 | $31.27 | $502K |
| 2026-06-29 | 19,637 | $31.66 | $622K |
| 2026-06-24 | 1,578 | $31.00 | $49K |
| 2026-06-15 | 1,919 | $30.96 | $59K |
| 2026-06-08 | 119 | $29.27 | $3K |
Insider trades
SEC Form 4, newest first. JSONInsiders at CURB reported 21 open-market sells worth $43.6M in the last 90 days and no open-market buys. Latest filing: Lukes David R (President & CEO) on 2026-10-23.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-23 | Lukes David R | President & CEO | Gift | 105K | $0.00 | $0 | 105K |
| 2026-10-23 | Lukes David R | President & CEO | Gift | 105K | $0.00 | $0 | 402K |
| 2026-09-15 | Fennerty Conor | EVP, CFO & Treasurer | Tax withholding | 2K | $29.08 | $72K | 151K |
| 2026-09-15 | Cattonar John M | EVP & Chief Investment Officer | Tax withholding | 2K | $29.08 | $72K | 181K |
| 2026-09-14 | Otto Alexander | Director | Sell | 839 | $29.52 | $25K | 6.6M |
| 2026-09-10 | Otto Alexander | Director | Sell | 2K | $29.51 | $69K | 6.6M |
| 2026-09-09 | Otto Alexander | Director | Sell | 33K | $29.59 | $980K | 6.6M |
| 2026-09-08 | Otto Alexander | Director | Sell | 222K | $29.68 | $6.6M | 6.6M |
| 2026-09-01 | Otto Alexander | Director | Sell | 100 | $30.02 | $3K | 6.8M |
| 2026-08-31 | Otto Alexander | Director | Sell | 4K | $30.05 | $108K | 6.8M |
| 2026-08-28 | Otto Alexander | Director | Sell | 110K | $30.11 | $3.3M | 6.8M |
| 2026-08-27 | Otto Alexander | Director | Sell | 500 | $30.00 | $15K | 6.9M |
| 2026-08-26 | Otto Alexander | Director | Sell | 135K | $30.17 | $4.1M | 6.9M |
| 2026-08-25 | Otto Alexander | Director | Sell | 174K | $30.12 | $5.2M | 7.1M |
| 2026-08-19 | Otto Alexander | Director | Sell | 1K | $30.10 | $36K | 7.2M |
| 2026-08-18 | Otto Alexander | Director | Sell | 33K | $30.02 | $988K | 7.2M |
| 2026-08-17 | Otto Alexander | Director | Sell | 9K | $30.04 | $276K | 7.3M |
| 2026-08-14 | Otto Alexander | Director | Sell | 136K | $30.25 | $4.1M | 7.3M |
| 2026-08-13 | Otto Alexander | Director | Sell | 136K | $30.15 | $4.1M | 7.4M |
| 2026-08-12 | Otto Alexander | Director | Sell | 96K | $30.06 | $2.9M | 7.5M |
| 2026-08-07 | Otto Alexander | Director | Sell | 20K | $29.76 | $609K | 7.6M |
| 2026-08-06 | Otto Alexander | Director | Sell | 109K | $29.79 | $3.3M | 7.7M |
| 2026-08-05 | Otto Alexander | Director | Sell | 134K | $30.11 | $4.0M | 7.8M |
| 2026-08-04 | Otto Alexander | Director | Sell | 39K | $30.17 | $1.2M | 7.9M |
| 2026-07-30 | Fennerty Conor | EVP, CFO & Treasurer | Sell | 55K | $30.38 | $1.7M | 154K |
| 2026-06-25 | Fennerty Conor | EVP, CFO & Treasurer | Grant | 49K | $0.00 | $0 | 209K |
| 2026-06-25 | Cattonar John M | EVP & Chief Investment Officer | Grant | 45K | $0.00 | $0 | 183K |
| 2026-05-11 | Lukes David R | President & CEO | Gift | 42K | $0.00 | $0 | 42K |
| 2026-05-11 | Lukes David R | President & CEO | Gift | 42K | $0.00 | $0 | 42K |
| 2026-05-11 | Lukes David R | President & CEO | Gift | 42K | $0.00 | $0 | 42K |
| 2026-05-11 | Lukes David R | President & CEO | Gift | 126K | $0.00 | $0 | 0 |
| 2026-04-08 | Solomon Lesley H | EVP & General Counsel | Tax withholding | 408 | $26.79 | $11K | 24K |
| 2026-03-16 | Lukes David R | President & CEO | Sell | 84K | $26.83 | $2.2M | 507K |
| 2026-03-13 | Lukes David R | President & CEO | Sell | 40K | $26.80 | $1.1M | 590K |
| 2026-02-28 | Lukes David R | President & CEO | Tax withholding | 78K | $27.81 | $2.2M | 756K |
| 2026-02-28 | Fennerty Conor | EVP, CFO & Treasurer | Tax withholding | 20K | $27.81 | $544K | 160K |
| 2026-02-28 | Cattonar John M | EVP & Chief Investment Officer | Tax withholding | 9K | $27.81 | $259K | 138K |
| 2026-02-22 | Yarian Christina M. | SVP & Chief Accounting Officer | Tax withholding | 154 | $27.25 | $4K | 25K |
| 2026-02-22 | Yarian Christina M. | SVP & Chief Accounting Officer | Grant | 2K | $0.00 | $0 | 26K |
| 2026-02-22 | Solomon Lesley H | EVP & General Counsel | Tax withholding | 640 | $27.25 | $17K | 25K |
| 2026-02-22 | Solomon Lesley H | EVP & General Counsel | Grant | 4K | $0.00 | $0 | 25K |
| 2026-02-22 | Lukes David R | President & CEO | Tax withholding | 12K | $27.25 | $314K | 834K |
| 2026-02-22 | Fennerty Conor | EVP, CFO & Treasurer | Tax withholding | 4K | $27.25 | $120K | 179K |
| 2026-02-22 | Fennerty Conor | EVP, CFO & Treasurer | Grant | 10K | $0.00 | $0 | 184K |
| 2026-02-22 | Cattonar John M | EVP & Chief Investment Officer | Tax withholding | 2K | $27.25 | $52K | 147K |
| 2026-02-02 | Lukes David R | President & CEO | Gift | 126K | $0.00 | $0 | 126K |
| 2026-02-02 | Lukes David R | President & CEO | Gift | 126K | $0.00 | $0 | 630K |
| 2025-09-15 | Fennerty Conor | EVP, CFO & Treasurer | Tax withholding | 2K | $22.47 | $56K | 174K |
| 2025-09-15 | Cattonar John M | EVP & Chief Investment Officer | Tax withholding | 2K | $22.47 | $39K | 149K |
| 2025-08-07 | Lukes David R | President & CEO | Sell | 100K | $22.45 | $2.2M | 845K |
| 2025-08-06 | Lukes David R | President & CEO | Sell | 100K | $22.54 | $2.3M | 945K |
| 2025-06-27 | Fennerty Conor | EVP, CFO & Treasurer | Sell | 28K | $22.81 | $639K | 177K |
| 2025-04-08 | Solomon Lesley H | EVP & General Counsel | Tax withholding | 411 | $22.45 | $9K | 22K |
| 2025-02-28 | Fennerty Conor | EVP, CFO & Treasurer | Tax withholding | 15K | $24.42 | $361K | 205K |
| 2025-02-28 | Cattonar John M | EVP & Chief Investment Officer | Tax withholding | 6K | $24.42 | $153K | 151K |
| 2025-02-28 | Lukes David R | President & CEO | Tax withholding | 71K | $24.42 | $1.7M | 1.0M |
| 2025-02-22 | Cattonar John M | EVP & Chief Investment Officer | Grant | 6K | $0.00 | $0 | 159K |
| 2025-02-22 | Cattonar John M | EVP & Chief Investment Officer | Tax withholding | 2K | $24.36 | $48K | 157K |
| 2025-02-22 | Lukes David R | President & CEO | Tax withholding | 21K | $24.36 | $513K | 1.1M |
| 2025-02-22 | Solomon Lesley H | EVP & General Counsel | Grant | 4K | $0.00 | $0 | 22K |
| 2025-02-22 | Solomon Lesley H | EVP & General Counsel | Tax withholding | 404 | $24.36 | $10K | 22K |
| 2025-02-22 | Fennerty Conor | EVP, CFO & Treasurer | Tax withholding | 4K | $24.36 | $92K | 219K |
| 2025-02-22 | Fennerty Conor | EVP, CFO & Treasurer | Grant | 10K | $0.00 | $0 | 223K |
| 2025-02-22 | Yarian Christina M. | SVP & Chief Accounting Officer | Tax withholding | 150 | $24.36 | $4K | 23K |
| 2025-02-22 | Yarian Christina M. | SVP & Chief Accounting Officer | Grant | 988 | $0.00 | $0 | 24K |
| 2024-10-18 | Otto Alexander | Director | Sell | 224 | $22.94 | $5K | 7.9M |
| 2024-10-15 | Abraham Linda B. | Director | Grant | 13K | $0.00 | $0 | 36K |
| 2024-10-15 | Otto Alexander | Director | Grant | 13K | $0.00 | $0 | 7.9M |
| 2024-10-15 | AHERN TERRANCE R | Director | Grant | 13K | $0.00 | $0 | 69K |
| 2024-10-15 | Cattonar John M | EVP & Chief Investment Officer | Grant | 136K | price not stated in the filing | not stated | 153K |
| 2024-10-15 | DeFlorio Jane E. | Director | Grant | 13K | $0.00 | $0 | 42K |
| 2024-10-15 | Fennerty Conor | EVP, CFO & Treasurer | Grant | 183K | price not stated in the filing | not stated | 213K |
| 2024-10-15 | Lukes David R | President & CEO | Grant | 527K | price not stated in the filing | not stated | 1.1M |
| 2024-10-15 | MACFARLANE VICTOR B | Director | Grant | 13K | $0.00 | $0 | 17K |
| 2024-10-15 | SHOLEM BARRY A | Director | Grant | 13K | $0.00 | $0 | 22K |
| 2024-10-15 | Solomon Lesley H | EVP & General Counsel | Grant | 18K | price not stated in the filing | not stated | 18K |
| 2024-10-15 | Yarian Christina M. | SVP & Chief Accounting Officer | Grant | 16K | price not stated in the filing | not stated | 23K |
| 2024-10-01 | SITE Centers Corp. | TenPercentOwner | Other transaction | 104.9M | $0.00 | $0 | 0 |
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. JSON4 Form 144 notices on file for CURB worth $50.4M at the prices reported; 2 in the last 90 days worth $47.0M. Latest: Otto Alexander filed on 2026-08-04 to sell 1,500,000 shares ($45.4M) from 2026-08-04.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-08-04 | Otto AlexanderDirector | 1.5M | $45.4M | 1.304% | 2026-08-04 | Deutsche Bank Securities Inc. |
| 2026-07-30 | Fennerty ConorOfficer, Director | 55K | $1.7M | 0.048% | 2026-07-30 | Wells Fargo Clearing Services |
| 2026-03-16 | Lukes David ROfficer, Director | 84K | $2.2M | 0.079% | 2026-03-16 | Wells Fargo Clearing Services |
| 2026-03-13 | Lukes David ROfficer, Director | 40K | $1.1M | 0.038% | 2026-03-13 | Wells Fargo Clearing Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON4 holders report 5% or more of CURB in their latest filing, 1 on Schedule 13D (active intent). The largest reported stake is BlackRock, Inc. at 15.0% of the class (17,120,998 shares), filed 2026-07-30 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13D/Ano. 1 | Alexander Ottoindividual | 7.4M | 6.4% | 2026-08-12 |
| 2026-07-30 | 13G/Ano. 1 | BlackRock, Inc.parent holding company | 17.1M | 15.0% | 2026-06-30 |
| 2026-05-06 | 13G/Ano. 5 | Abigail P. Johnsonindividual | 4.3M | 4.0% | 2026-03-31 |
| 2026-05-06 | 13G/Ano. 5 | FMR LLCparent holding company | 4.3M | 4.0% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 9.3M | 8.8% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 2 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2026-02-17 | 13G/Ano. 2 | T. Rowe Price Investment Management, Inc.investment adviser | 13.3M | 12.7% | 2025-12-31 |
13F holders
Tracked managers holding CURB at their latest 13F. JSON8 of the 30 tracked managers held CURB at their latest 13F, $166.1M in total at quarter-end prices. Millennium Management is the largest at $77.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 5 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Millennium Management | 2026-06-30 | 2.5M | $77.0M | 0.03% | +182K |
| Citadel Advisors | 2026-06-30 | 937K | $28.5M | 0.00% | +650K |
| D. E. Shaw & Co. | 2026-06-30 | 605K | $18.4M | 0.01% | +351K |
| Fisher Asset Management | 2026-06-30 | 558K | $17.0M | 0.01% | +103K |
| Two Sigma Investments | 2026-06-30 | 384K | $11.7M | 0.01% | -27K |
| Point72 Asset Management | 2026-06-30 | 290K | $8.8M | 0.01% | -46K |
| Renaissance Technologies | 2026-06-30 | 101K | $3.1M | 0.00% | -241K |
| AQR Capital Management | 2026-06-30 | 54K | $1.7M | 0.00% | +15K |
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
Curbline Properties 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 Curbline Properties (CURB), SEC CIK 2027317, listed on NYSE. 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 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.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 2026-08-04.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 2026-08-14.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 2026-10-22.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 2026-10-23.JSON and CSV
- Company record
- EDGAR filing index for CIK 2027317Ticker, 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 CURB is sold short?
15,758,442 shares were held short at the 2026-09-30 settlement, 9.8 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 CURB's daily short volume?
On 2026-10-23, 274,166 of the 747,847 CURB shares reported to FINRA were sold short, 36.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CURB have fails to deliver?
The SEC's latest file shows 259 CURB shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.
Are CURB insiders buying or selling?
Insiders at CURB reported 21 open-market sells worth $43.6M in the last 90 days and no open-market buys. Latest filing: Lukes David R (President & CEO) on 2026-10-23.
Have CURB insiders filed to sell?
4 Form 144 notices on file for CURB worth $50.4M at the prices reported; 2 in the last 90 days worth $47.0M. Latest: Otto Alexander filed on 2026-08-04 to sell 1,500,000 shares ($45.4M) from 2026-08-04.
Who owns 5% or more of CURB?
4 holders report 5% or more of CURB in their latest filing, 1 on Schedule 13D (active intent). The largest reported stake is BlackRock, Inc. at 15.0% of the class (17,120,998 shares), filed 2026-07-30 for an event on 2026-06-30.
Which tracked 13F managers own CURB?
8 of the 30 tracked 13F managers held CURB shares at their latest filing, $166.1M in all. The largest: Izzy Englander's Millennium Management (2.5M shares, $77.0M), Ken Griffin's Citadel Advisors (937K shares, $28.5M), D. E. Shaw & Co. (605K shares, $18.4M), Ken Fisher's Fisher Asset Management (558K shares, $17.0M), Two Sigma Investments (384K shares, $11.7M), Steve Cohen's Point72 Asset Management (290K shares, $8.8M). The table above lists all 8.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.