BlackRock (BLK)
BlackRock 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, classified by the SEC as security brokers, dealers & flotation companies.
2.1M
Short interest
settlement 2026-10-15
3.5
Days to cover
-0.1 days vs prior
56.2%
Short share of volume
2026-10-28
2
Fails to deliver
settlement 2026-09-28
Thu 14 Jan
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-28.
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 BLK is 2,135,642 shares, up 95,563 shares over the last month. Over the last 48 readings it ranged from 1,203,585 shares (31 October 2025) to 2,176,024 shares (31 July 2026). The latest reading sits at the top of that range. At the reported average volume of 613K shares a day that is 3.5 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 2,135,642 | +4.7% | 613,124 | 3.48 |
| 2026-09-30 | 2,040,215 | +0.0% | 565,587 | 3.61 |
| 2026-09-15 | 2,040,079 | +6.7% | 506,301 | 4.03 |
| 2026-08-31 | 1,911,216 | +5.4% | 587,410 | 3.25 |
| 2026-08-14 | 1,813,402 | -16.7% | 579,081 | 3.13 |
| 2026-07-31 | 2,176,024 | +3.9% | 782,086 | 2.78 |
| 2026-07-15 | 2,095,185 | +1.0% | 808,320 | 2.59 |
| 2026-06-30 | 2,073,854 | +3.2% | 1,054,346 | 1.97 |
| 2026-06-15 | 2,009,447 | -0.1% | 720,892 | 2.79 |
| 2026-05-29 | 2,010,666 | -7.0% | 696,220 | 2.89 |
| 2026-05-15 | 2,161,477 | +25.2% | 538,427 | 4.01 |
| 2026-04-30 | 1,726,799 | -9.9% | 613,915 | 2.81 |
| 2026-04-15 | 1,916,015 | +7.7% | 799,686 | 2.40 |
| 2026-03-31 | 1,778,312 | +15.0% | 923,170 | 1.93 |
| 2026-03-13 | 1,546,747 | +6.9% | 1,115,763 | 1.39 |
| 2026-02-27 | 1,446,441 | -1.7% | 778,745 | 1.86 |
| 2026-02-13 | 1,471,790 | -2.1% | 892,248 | 1.65 |
| 2026-01-30 | 1,503,354 | +21.9% | 748,061 | 2.01 |
| 2026-01-15 | 1,233,437 | +1.4% | 789,247 | 1.56 |
| 2025-12-31 | 1,216,184 | -3.9% | 475,003 | 2.56 |
| 2025-12-15 | 1,264,999 | -30.6% | 622,979 | 2.03 |
| 2025-11-28 | 1,822,480 | +46.8% | 776,780 | 2.35 |
| 2025-11-14 | 1,241,874 | +3.2% | 532,020 | 2.33 |
| 2025-10-31 | 1,203,585 | -5.3% | 734,703 | 1.64 |
| 2025-10-15 | 1,271,499 | -16.3% | 664,495 | 1.91 |
| 2025-09-30 | 1,519,109 | -28.7% | 599,892 | 2.53 |
| 2025-09-15 | 2,130,051 | +16.8% | 476,193 | 4.47 |
| 2025-08-29 | 1,823,798 | +13.4% | 443,660 | 4.11 |
| 2025-08-15 | 1,608,563 | +6.9% | 516,186 | 3.12 |
| 2025-07-31 | 1,505,175 | -8.1% | 658,623 | 2.29 |
| 2025-07-15 | 1,637,112 | -15.7% | 632,778 | 2.59 |
| 2025-06-30 | 1,941,265 | +2.8% | 663,599 | 2.93 |
| 2025-06-13 | 1,888,696 | +11.7% | 529,795 | 3.56 |
| 2025-05-30 | 1,690,462 | -13.6% | 606,085 | 2.79 |
| 2025-05-15 | 1,956,063 | +14.8% | 659,094 | 2.97 |
| 2025-04-30 | 1,703,978 | -12.7% | 659,560 | 2.58 |
| 2025-04-15 | 1,952,197 | +33.2% | 1,150,083 | 1.70 |
| 2025-03-31 | 1,466,054 | -22.6% | 1,190,387 | 1.23 |
| 2025-03-14 | 1,895,164 | +15.9% | 846,780 | 2.24 |
| 2025-02-28 | 1,634,784 | +12.2% | 964,531 | 1.69 |
| 2025-02-14 | 1,457,152 | -7.0% | 814,254 | 1.79 |
| 2025-01-31 | 1,567,522 | +18.6% | 784,879 | 2.00 |
| 2025-01-15 | 1,321,976 | -3.1% | 815,580 | 1.62 |
| 2024-12-31 | 1,364,118 | -13.7% | 748,655 | 1.82 |
| 2024-12-13 | 1,580,493 | -18.0% | 787,474 | 2.01 |
| 2024-11-29 | 1,926,939 | -9.9% | 680,629 | 2.83 |
| 2024-11-15 | 2,138,587 | +4.5% | 653,846 | 3.27 |
| 2024-10-31 | 2,045,947 | +4.6% | 451,449 | 4.53 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 28 October 2026, the short share of BLK volume is 56.2%, up 5.3 points over the last five sessions. Over the last 30 readings it ranged from 26.1% (22 October 2026) to 64.2% (13 October 2026). The latest reading is 7.6 points above the 30-session average of 48.6%, on 252K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-28 | 141K | 252K | 56.2% | 163 |
| 2026-10-27 | 79K | 183K | 43.3% | 160 |
| 2026-10-26 | 97K | 183K | 52.8% | 41 |
| 2026-10-23 | 191K | 411K | 46.5% | 79 |
| 2026-10-22 | 87K | 332K | 26.1% | 100 |
| 2026-10-21 | 161K | 316K | 50.9% | 0 |
| 2026-10-20 | 226K | 388K | 58.3% | 0 |
| 2026-10-19 | 123K | 229K | 53.5% | 5 |
| 2026-10-16 | 279K | 512K | 54.4% | 2,451 |
| 2026-10-15 | 254K | 461K | 55.1% | 39 |
| 2026-10-14 | 220K | 477K | 46.0% | 1,329 |
| 2026-10-13 | 180K | 281K | 64.2% | 3,554 |
| 2026-10-12 | 77K | 155K | 49.7% | 0 |
| 2026-10-09 | 78K | 194K | 40.4% | 649 |
| 2026-10-08 | 80K | 197K | 40.7% | 40 |
| 2026-10-07 | 77K | 153K | 50.5% | 1 |
| 2026-10-06 | 97K | 187K | 52.0% | 113 |
| 2026-10-05 | 81K | 223K | 36.5% | 178 |
| 2026-10-02 | 70K | 157K | 44.4% | 3 |
| 2026-10-01 | 70K | 194K | 36.3% | 112 |
| 2026-09-30 | 58K | 132K | 44.1% | 121 |
| 2026-09-29 | 55K | 137K | 40.4% | 272 |
| 2026-09-28 | 91K | 185K | 48.9% | 18 |
| 2026-09-25 | 94K | 176K | 53.8% | 1 |
| 2026-09-24 | 112K | 194K | 57.5% | 430 |
| 2026-09-23 | 112K | 201K | 55.8% | 126 |
| 2026-09-22 | 89K | 183K | 48.4% | 0 |
| 2026-09-21 | 87K | 177K | 49.1% | 5 |
| 2026-09-18 | 101K | 202K | 50.0% | 19 |
| 2026-09-17 | 127K | 239K | 53.1% | 141 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 28 September 2026, the fails-to-deliver balance in BLK is 2 shares, down 36 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (9 July 2026) to 9,819 shares (3 March 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-28 | 2 | $1086.31 | $2K |
| 2026-09-17 | 38 | $1037.24 | $39K |
| 2026-08-31 | 4 | $1164.48 | $5K |
| 2026-08-17 | 100 | $1173.73 | $117K |
| 2026-08-14 | 5 | $1182.84 | $6K |
| 2026-08-10 | 1,100 | $1136.39 | $1.3M |
| 2026-08-04 | 100 | $1126.63 | $113K |
| 2026-07-20 | 723 | $1072.20 | $775K |
| 2026-07-13 | 100 | $1036.11 | $104K |
| 2026-07-09 | 1 | $990.34 | $990 |
| 2026-07-02 | 18 | $980.38 | $18K |
| 2026-07-01 | 245 | $961.56 | $236K |
| 2026-06-30 | 590 | $950.17 | $561K |
| 2026-06-16 | 6 | $1042.87 | $6K |
| 2026-06-15 | 4 | $1032.00 | $4K |
| 2026-05-29 | 543 | $1046.49 | $568K |
| 2026-05-18 | 98 | $1081.90 | $106K |
| 2026-05-11 | 201 | $1084.83 | $218K |
| 2026-05-07 | 2,361 | $1073.57 | $2.5M |
| 2026-04-27 | 100 | $1044.97 | $104K |
| 2026-04-20 | 400 | $1052.14 | $421K |
| 2026-04-15 | 112 | $1054.56 | $118K |
| 2026-04-13 | 100 | $999.31 | $100K |
| 2026-04-06 | 61 | $966.56 | $59K |
| 2026-03-30 | 31 | $933.85 | $29K |
| 2026-03-27 | 6 | $968.46 | $6K |
| 2026-03-25 | 14 | $976.06 | $14K |
| 2026-03-09 | 562 | $955.45 | $537K |
| 2026-03-03 | 9,819 | $1068.31 | $10.5M |
| 2026-02-26 | 110 | $1093.78 | $120K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for BLK in the last 90 days. The most recent filings are listed below. Latest filing: Kushel J. Richard (Senior Managing Director) on 2026-10-27.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-27 | Kushel J. Richard | Senior Managing Director | Gift | 900 | $0.00 | $0 | 61K |
| 2026-10-19 | Comerchero Marc D. | Principal Accounting Officer | Other transaction | 1K | $0.00 | $0 | 6K |
| 2026-09-30 | Nixon Gordon M. | Director | Grant | 34 | $0.00 | $0 | 6K |
| 2026-09-30 | Nasser Amin H. | Director | Grant | 27 | $0.00 | $0 | 1K |
| 2026-09-30 | Murphy Kathleen | Director | Grant | 36 | $0.00 | $0 | 810 |
| 2026-09-30 | Daley Pamela | Director | Grant | 27 | $0.00 | $0 | 7K |
| 2026-09-30 | Freda Fabrizio | Director | Grant | 18 | $0.00 | $0 | 4K |
| 2026-09-30 | PECK KRISTIN C | Director | Grant | 30 | $0.00 | $0 | 2K |
| 2026-09-30 | Robbins Charles | Director | Grant | 27 | $0.00 | $0 | 3K |
| 2026-09-30 | Vestberg Hans Erik | Director | Grant | 33 | $0.00 | $0 | 2K |
| 2026-09-30 | FORD WILLIAM E | Director | Grant | 34 | $0.00 | $0 | 17K |
| 2026-09-30 | Johnson Margaret L | Director | Grant | 33 | $0.00 | $0 | 2K |
| 2026-09-30 | LEMKAU GREGG | Director | Grant | 27 | $0.00 | $0 | 311 |
| 2026-07-21 | FINK LAURENCE | Chairman and CEO | Gift | 8K | $0.00 | $0 | 216K |
| 2026-07-16 | FINK LAURENCE | Chairman and CEO | Sell | 2K | $1080.57 | $2.1M | 224K |
| 2026-07-16 | Meade Christopher J. | General Counsel and CLO | Sell | 2K | $1102.80 | $2.4M | 14K |
| 2026-07-16 | Meade Christopher J. | General Counsel and CLO | Sell | 16K | $1101.99 | $17.5M | 16K |
| 2026-07-16 | Meade Christopher J. | General Counsel and CLO | Exercise or conversion | 18K | $513.50 | $9.3M | 32K |
| 2026-06-30 | Vestberg Hans Erik | Director | Grant | 36 | $0.00 | $0 | 2K |
| 2026-06-30 | Robbins Charles | Director | Grant | 30 | $0.00 | $0 | 3K |
| 2026-06-30 | PECK KRISTIN C | Director | Grant | 34 | $0.00 | $0 | 2K |
| 2026-06-30 | Nixon Gordon M. | Director | Grant | 37 | $0.00 | $0 | 6K |
| 2026-06-30 | Nasser Amin H. | Director | Grant | 30 | $0.00 | $0 | 1K |
| 2026-06-30 | Murphy Kathleen | Director | Grant | 41 | $0.00 | $0 | 774 |
| 2026-06-30 | LEMKAU GREGG | Director | Grant | 30 | $0.00 | $0 | 284 |
| 2026-06-30 | Johnson Margaret L | Director | Grant | 36 | $0.00 | $0 | 2K |
| 2026-06-30 | Freda Fabrizio | Director | Grant | 21 | $0.00 | $0 | 4K |
| 2026-06-30 | FORD WILLIAM E | Director | Grant | 37 | $0.00 | $0 | 17K |
| 2026-06-30 | Daley Pamela | Director | Grant | 30 | $0.00 | $0 | 7K |
| 2026-06-01 | FINK LAURENCE | Chairman and CEO | Gift | 5K | $0.00 | $0 | 226K |
| 2026-04-28 | FINK LAURENCE | Chairman and CEO | Sell | 2K | $1052.50 | $2.2M | 231K |
| 2026-04-28 | FINK LAURENCE | Chairman and CEO | Sell | 8K | $1051.35 | $8.6M | 233K |
| 2026-04-28 | FINK LAURENCE | Chairman and CEO | Sell | 14K | $1050.44 | $14.5M | 241K |
| 2026-04-28 | FINK LAURENCE | Chairman and CEO | Sell | 10K | $1049.61 | $10.2M | 255K |
| 2026-04-27 | KAPITO ROBERT | President | Sell | 187 | $1057.60 | $198K | 210K |
| 2026-04-27 | KAPITO ROBERT | President | Sell | 5K | $1056.86 | $5.7M | 210K |
| 2026-04-27 | KAPITO ROBERT | President | Sell | 3K | $1056.10 | $3.4M | 216K |
| 2026-03-31 | Vestberg Hans Erik | Director | Grant | 36 | $0.00 | $0 | 2K |
| 2026-03-31 | Robbins Charles | Director | Grant | 30 | $0.00 | $0 | 3K |
| 2026-03-31 | PECK KRISTIN C | Director | Grant | 34 | $0.00 | $0 | 2K |
| 2026-03-31 | Nixon Gordon M. | Director | Grant | 38 | $0.00 | $0 | 6K |
| 2026-03-31 | Nasser Amin H. | Director | Grant | 30 | $0.00 | $0 | 1K |
| 2026-03-31 | Murphy Kathleen | Director | Grant | 40 | $0.00 | $0 | 733 |
| 2026-03-31 | LEMKAU GREGG | Director | Grant | 29 | $0.00 | $0 | 254 |
| 2026-03-31 | Johnson Margaret L | Director | Grant | 37 | $0.00 | $0 | 2K |
| 2026-03-31 | Freda Fabrizio | Director | Grant | 21 | $0.00 | $0 | 4K |
| 2026-03-31 | FORD WILLIAM E | Director | Grant | 38 | $0.00 | $0 | 17K |
| 2026-03-31 | Daley Pamela | Director | Grant | 40 | $0.00 | $0 | 6K |
| 2026-02-24 | Kushel J. Richard | Senior Managing Director | Sell | 2K | $1083.05 | $2.2M | 62K |
| 2026-02-24 | Kushel J. Richard | Senior Managing Director | Sell | 385 | $1084.91 | $418K | 3K |
| 2026-02-23 | Cohen Stephen | Senior Managing Director | Sell | 225 | $1069.56 | $241K | 6K |
| 2026-02-19 | Cohen Stephen | Senior Managing Director | Gift | 657 | $0.00 | $0 | 6K |
| 2026-02-13 | Goldstein Robert L. | Chief Operating Officer | Gift | 9K | $0.00 | $0 | 9K |
| 2026-02-13 | Goldstein Robert L. | Chief Operating Officer | Gift | 9K | $0.00 | $0 | 38K |
| 2026-02-11 | Goldstein Robert L. | Chief Operating Officer | Sell | 2K | $1085.82 | $1.7M | 46K |
| 2026-02-11 | Goldstein Robert L. | Chief Operating Officer | Sell | 478 | $1085.09 | $519K | 48K |
| 2026-02-11 | Goldstein Robert L. | Chief Operating Officer | Sell | 911 | $1083.96 | $987K | 48K |
| 2026-02-11 | Goldstein Robert L. | Chief Operating Officer | Sell | 2K | $1083.11 | $2.6M | 49K |
| 2026-02-11 | Cohen Stephen | Senior Managing Director | Sell | 2K | $1073.87 | $2.3M | 7K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 118 | $1092.00 | $129K | 51K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 2K | $1091.34 | $1.9M | 52K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 1K | $1089.93 | $1.3M | 53K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 9K | $1089.00 | $9.5M | 55K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 18K | $1088.00 | $19.6M | 63K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 6K | $1087.05 | $6.1M | 81K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 9K | $1085.97 | $9.8M | 87K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 6K | $1085.10 | $6.4M | 96K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Sell | 4K | $1084.06 | $4.2M | 102K |
| 2026-02-10 | Goldstein Robert L. | Chief Operating Officer | Exercise or conversion | 54K | $513.50 | $27.8M | 106K |
| 2026-02-04 | Johnson Margaret L | Director | Gift | 419 | $0.00 | $0 | 2K |
| 2026-02-04 | Johnson Margaret L | Director | Gift | 419 | $0.00 | $0 | 2K |
| 2026-01-31 | Comerchero Marc D. | Principal Accounting Officer | Grant | 549 | $0.00 | $0 | 7K |
| 2026-01-31 | Heller Caroline | Senior Managing Director | Grant | 627 | $0.00 | $0 | 4K |
| 2026-01-31 | Meade Christopher J. | General Counsel and CLO | Grant | 5K | $0.00 | $0 | 14K |
| 2026-01-31 | Lord Rachel | Senior Managing Director | Grant | 6K | $0.00 | $0 | 13K |
| 2026-01-31 | Cohen Stephen | Senior Managing Director | Grant | 4K | $0.00 | $0 | 9K |
| 2026-01-31 | Small Martin | CFO & Senior Managing Director | Grant | 5K | $0.00 | $0 | 12K |
| 2026-01-31 | Kushel J. Richard | Senior Managing Director | Grant | 6K | $0.00 | $0 | 64K |
| 2026-01-31 | Goldstein Robert L. | Chief Operating Officer | Grant | 9K | $0.00 | $0 | 51K |
| 2026-01-31 | KAPITO ROBERT | President | Grant | 15K | $0.00 | $0 | 219K |
| 2026-01-31 | FINK LAURENCE | Chairman and CEO | Grant | 20K | $0.00 | $0 | 264K |
| 2026-01-30 | Comerchero Marc D. | Principal Accounting Officer | Tax withholding | 558 | $1118.94 | $624K | 6K |
| 2026-01-30 | Heller Caroline | Senior Managing Director | Tax withholding | 740 | $1118.94 | $828K | 3K |
| 2026-01-30 | Meade Christopher J. | General Counsel and CLO | Tax withholding | 3K | $1118.94 | $3.9M | 9K |
| 2026-01-30 | Lord Rachel | Senior Managing Director | Tax withholding | 3K | $1118.94 | $3.1M | 7K |
| 2026-01-30 | Cohen Stephen | Senior Managing Director | Tax withholding | 2K | $1118.94 | $2.4M | 5K |
| 2026-01-30 | Small Martin | CFO & Senior Managing Director | Tax withholding | 4K | $1118.94 | $4.2M | 7K |
| 2026-01-30 | Kushel J. Richard | Senior Managing Director | Tax withholding | 4K | $1118.94 | $4.7M | 58K |
| 2026-01-30 | Goldstein Robert L. | Chief Operating Officer | Tax withholding | 7K | $1118.94 | $7.3M | 42K |
| 2026-01-30 | KAPITO ROBERT | President | Tax withholding | 11K | $1118.94 | $12.1M | 204K |
| 2026-01-30 | FINK LAURENCE | Chairman and CEO | Tax withholding | 14K | $1118.94 | $16.1M | 245K |
| 2026-01-27 | LEMKAU GREGG | Director | Grant | 225 | $0.00 | $0 | 225 |
| 2026-01-21 | Kushel J. Richard | Senior Managing Director | Sell | 20K | $1125.00 | $22.5M | 62K |
| 2026-01-21 | Kushel J. Richard | Senior Managing Director | Exercise or conversion | 20K | $513.50 | $10.3M | 82K |
| 2026-01-16 | Small Martin | CFO & Senior Managing Director | Sell | 503 | $1173.80 | $590K | 11K |
| 2026-01-16 | Small Martin | CFO & Senior Managing Director | Sell | 6K | $1172.37 | $6.5M | 11K |
| 2026-01-16 | Small Martin | CFO & Senior Managing Director | Sell | 8K | $1171.52 | $9.5M | 17K |
| 2026-01-16 | Small Martin | CFO & Senior Managing Director | Sell | 13K | $1170.27 | $15.1M | 25K |
| 2026-01-16 | Small Martin | CFO & Senior Managing Director | Exercise or conversion | 27K | $513.50 | $13.9M | 38K |
| 2026-01-16 | Small Martin | CFO & Senior Managing Director | Grant | 4K | $0.00 | $0 | 11K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON14 Form 144 notices on file for BLK worth $206.1M at the prices reported; 0 in the last 90 days worth $0. Latest: Meade Christopher J. filed on 2026-07-16 to sell 18,095 shares ($19.9M) from 2026-07-16.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-07-16 | Meade Christopher J.Officer | 18K | $19.9M | 0.012% | 2026-07-16 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-07-16 | FINK LAURENCEOfficer, Director | 2K | $2.1M | 0.001% | 2026-07-16 | Rockefeller Capital Management |
| 2026-04-28 | FINK LAURENCEOfficer, Director | 34K | $35.6M | 0.022% | 2026-04-28 | Rockefeller Capital Management |
| 2026-04-27 | KAPITO ROBERTOfficer, Director | 9K | $9.2M | 0.006% | 2026-04-27 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-02-24 | Kushel J. RichardOfficer | 2K | $2.2M | 0.001% | 2026-02-24 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-02-24 | Kushel J. RichardOfficer | 385 | $418K | 0.000% | 2026-02-24 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-02-23 | Cohen StephenOfficer | 225 | $241K | 0.000% | 2026-02-23 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-02-11 | Cohen StephenOfficer | 2K | $2.3M | 0.001% | 2026-02-11 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-02-11 | Goldstein Robert L.Officer | 5K | $5.7M | 0.003% | 2026-02-11 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-02-10 | Goldstein Robert L.Officer | 54K | $58.9M | 0.035% | 2026-02-10 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-01-21 | Kushel J. RichardOfficer | 20K | $22.5M | 0.012% | 2026-01-21 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2026-01-16 | Small MartinOfficer | 27K | $31.7M | 0.017% | 2026-01-16 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2025-12-01 | Small MartinOfficer | 1K | $1.3M | 0.001% | 2025-12-01 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
| 2025-10-20 | Lord RachelOfficer | 12K | $14.0M | 0.008% | 2025-10-20 | Merrill Lynch, Pierce, Fenner & Smith Inc. |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of BLK in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 6.9% of the class (10,700,618 shares), filed 2026-04-27 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-27 | 13G | Vanguard Capital Managementinvestment adviser | 10.7M | 6.9% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 7 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding BLK at their latest 13F. JSON10 of the 30 tracked managers held BLK at their latest 13F, $4.95B in total at quarter-end prices. Fisher Asset Management is the largest at $1.35B (0.4% of its portfolio) as of 2026-06-30. Over the prior quarter 7 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Fisher Asset Management | 2026-06-30 | 1.4M | $1.35B | 0.40% | -378K |
| Citadel Advisors | 2026-06-30 | 1.1M | $1.06B | 0.12% | +394K |
| AQR Capital Management | 2026-06-30 | 657K | $632.0M | 0.22% | +217K |
| ValueAct Holdings | 2026-06-30 | 582K | $559.3M | 9.93% | +36K |
| Millennium Management | 2026-06-30 | 495K | $476.2M | 0.17% | -146K |
| Two Sigma Investments | 2026-06-30 | 485K | $466.7M | 0.34% | +292K |
| Point72 Asset Management | 2026-06-30 | 179K | $172.6M | 0.19% | +126K |
| D. E. Shaw & Co. | 2026-06-30 | 126K | $121.2M | 0.06% | -21K |
| Renaissance Technologies | 2026-06-30 | 119K | $114.2M | 0.16% | new |
| Bridgewater Associates | 2026-06-30 | 5K | $4.5M | 0.02% | 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
BlackRock 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 BlackRock (BLK), SEC CIK 2012383, listed on NYSE, classified by the SEC as security brokers, dealers & flotation companies. 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 2026-10-28.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-28.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 2026-07-16.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 2026-04-27.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 2026-10-14.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 2026-10-27.JSON and CSV
- Company record
- EDGAR filing index for CIK 2012383Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as security brokers, dealers & flotation companies
Other company pages
Datasets
Frequently Asked Questions
How much of BLK is sold short?
2,135,642 shares were held short at the 2026-10-15 settlement, 3.5 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 BLK's daily short volume?
On 2026-10-28, 141,419 of the 251,682 BLK shares reported to FINRA were sold short, 56.2% of the day's reported volume. Short volume is a flow for one day, not a position.
Does BLK have fails to deliver?
The SEC's latest file shows 2 BLK shares failed to deliver at settlement 2026-09-28. Fails are reported per settlement date and published twice a month with a lag.
Are BLK insiders buying or selling?
No open-market insider trades were reported for BLK in the last 90 days. The most recent filings are listed below. Latest filing: Kushel J. Richard (Senior Managing Director) on 2026-10-27.
Have BLK insiders filed to sell?
14 Form 144 notices on file for BLK worth $206.1M at the prices reported; 0 in the last 90 days worth $0. Latest: Meade Christopher J. filed on 2026-07-16 to sell 18,095 shares ($19.9M) from 2026-07-16.
Who owns 5% or more of BLK?
1 holder reports 5% or more of BLK in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 6.9% of the class (10,700,618 shares), filed 2026-04-27 for an event on 2026-03-31.
Which tracked 13F managers own BLK?
10 of the 30 tracked 13F managers held BLK shares at their latest filing, $4.95B in all. The largest: Ken Fisher's Fisher Asset Management (1.4M shares, $1.35B), Ken Griffin's Citadel Advisors (1.1M shares, $1.06B), Cliff Asness's AQR Capital Management (657K shares, $632.0M), ValueAct Holdings (582K shares, $559.3M), Izzy Englander's Millennium Management (495K shares, $476.2M), Two Sigma Investments (485K shares, $466.7M). The table above lists all 10.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.