Solid Power (SLDP)
Solid Power 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 miscellaneous electrical machinery, equipment & supplies.
30.6M
Short interest
settlement 2026-10-15
11.1
Days to cover
+2.2 days vs prior
61.6%
Short share of volume
2026-11-02
18,079
Fails to deliver
settlement 2026-10-13
Tue 3 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in SLDP is 30,550,859 shares, up 2,734,515 shares over the last month. Over the last 48 readings it ranged from 13,777,189 shares (15 July 2025) to 30,550,859 shares (15 October 2026). The latest reading sits at the top of that range. At the reported average volume of 2.8M shares a day that is 11.1 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 30,550,859 | +8.2% | 2,762,321 | 11.06 |
| 2026-09-30 | 28,242,493 | +1.5% | 3,168,584 | 8.91 |
| 2026-09-15 | 27,816,344 | -0.1% | 2,682,363 | 10.37 |
| 2026-08-31 | 27,836,691 | +3.9% | 2,366,038 | 11.77 |
| 2026-08-14 | 26,799,877 | +7.3% | 3,881,076 | 6.91 |
| 2026-07-31 | 24,984,114 | -0.2% | 3,886,963 | 6.43 |
| 2026-07-15 | 25,044,360 | -0.3% | 3,833,417 | 6.53 |
| 2026-06-30 | 25,114,954 | +11.1% | 5,025,668 | 5.00 |
| 2026-06-15 | 22,596,610 | -3.5% | 5,553,525 | 4.07 |
| 2026-05-29 | 23,416,764 | +2.3% | 6,642,210 | 3.53 |
| 2026-05-15 | 22,895,144 | +0.9% | 8,178,255 | 2.80 |
| 2026-04-30 | 22,691,859 | -8.0% | 9,970,000 | 2.28 |
| 2026-04-15 | 24,653,563 | -7.0% | 3,921,346 | 6.29 |
| 2026-03-31 | 26,512,987 | +1.8% | 3,800,583 | 6.98 |
| 2026-03-13 | 26,050,038 | -3.5% | 3,982,659 | 6.54 |
| 2026-02-27 | 26,994,635 | -3.4% | 3,938,733 | 6.85 |
| 2026-02-13 | 27,945,270 | +7.4% | 5,688,575 | 4.91 |
| 2026-01-30 | 26,014,643 | +13.7% | 7,584,251 | 3.43 |
| 2026-01-15 | 22,885,283 | -6.5% | 5,768,049 | 3.97 |
| 2025-12-31 | 24,462,171 | +4.7% | 5,774,183 | 4.24 |
| 2025-12-15 | 23,361,133 | +5.6% | 6,998,384 | 3.34 |
| 2025-11-28 | 22,128,873 | +8.4% | 9,223,526 | 2.40 |
| 2025-11-14 | 20,417,774 | +17.3% | 22,921,096 | 1.00 |
| 2025-10-31 | 17,406,174 | -4.3% | 11,359,373 | 1.53 |
| 2025-10-15 | 18,197,601 | -7.9% | 21,828,761 | 1.00 |
| 2025-09-30 | 19,756,297 | +3.5% | 12,465,922 | 1.58 |
| 2025-09-15 | 19,086,286 | +0.2% | 8,071,731 | 2.36 |
| 2025-08-29 | 19,045,372 | +8.4% | 8,468,691 | 2.25 |
| 2025-08-15 | 17,575,207 | -2.4% | 11,821,874 | 1.49 |
| 2025-07-31 | 18,007,392 | +30.7% | 16,595,098 | 1.09 |
| 2025-07-15 | 13,777,189 | -4.1% | 9,255,496 | 1.49 |
| 2025-06-30 | 14,371,198 | -13.9% | 7,979,623 | 1.80 |
| 2025-06-13 | 16,695,473 | -8.0% | 6,757,234 | 2.47 |
| 2025-05-30 | 18,142,587 | -8.7% | 4,406,674 | 4.12 |
| 2025-05-15 | 19,866,641 | +0.5% | 1,851,532 | 10.73 |
| 2025-04-30 | 19,766,244 | +0.7% | 1,079,689 | 18.31 |
| 2025-04-15 | 19,633,631 | -2.7% | 2,646,417 | 7.42 |
| 2025-03-31 | 20,187,606 | -2.0% | 1,329,522 | 15.18 |
| 2025-03-14 | 20,607,501 | -0.0% | 2,075,808 | 9.93 |
| 2025-02-28 | 20,612,932 | +2.4% | 2,840,446 | 7.26 |
| 2025-02-14 | 20,130,954 | +6.1% | 2,208,118 | 9.12 |
| 2025-01-31 | 18,978,209 | -1.6% | 2,643,848 | 7.18 |
| 2025-01-15 | 19,276,185 | -16.7% | 7,128,403 | 2.70 |
| 2024-12-31 | 23,145,683 | +54.9% | 11,977,877 | 1.93 |
| 2024-12-13 | 14,938,316 | +1.4% | 1,599,703 | 9.34 |
| 2024-11-29 | 14,729,608 | -4.3% | 1,659,585 | 8.88 |
| 2024-11-15 | 15,388,597 | -3.2% | 2,399,295 | 6.41 |
| 2024-10-31 | 15,898,291 | +0.3% | 1,174,700 | 13.53 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of SLDP volume is 61.6%, down 0.5 points over the last five sessions. Over the last 30 readings it ranged from 52.4% (27 October 2026) to 75.2% (24 September 2026). The latest reading is in line with the 30-session average of 62.7%, on 1.5M shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 920K | 1.5M | 61.6% | 877 |
| 2026-10-30 | 778K | 1.4M | 56.7% | 7,732 |
| 2026-10-29 | 947K | 1.7M | 55.8% | 319 |
| 2026-10-28 | 783K | 1.5M | 52.6% | 0 |
| 2026-10-27 | 599K | 1.1M | 52.4% | 3,656 |
| 2026-10-26 | 606K | 977K | 62.0% | 518 |
| 2026-10-23 | 381K | 655K | 58.1% | 506 |
| 2026-10-22 | 620K | 977K | 63.4% | 267 |
| 2026-10-21 | 808K | 1.3M | 60.4% | 1,037 |
| 2026-10-20 | 896K | 1.3M | 67.8% | 316 |
| 2026-10-19 | 966K | 1.7M | 55.4% | 30,445 |
| 2026-10-16 | 538K | 863K | 62.4% | 1,930 |
| 2026-10-15 | 701K | 1.1M | 61.1% | 5,373 |
| 2026-10-14 | 943K | 1.5M | 63.1% | 11,947 |
| 2026-10-13 | 699K | 1.1M | 60.9% | 2,209 |
| 2026-10-12 | 771K | 1.3M | 59.2% | 3,797 |
| 2026-10-09 | 920K | 1.3M | 73.3% | 732 |
| 2026-10-08 | 730K | 1.0M | 70.0% | 0 |
| 2026-10-07 | 681K | 1.1M | 63.4% | 2,714 |
| 2026-10-06 | 641K | 983K | 65.2% | 845 |
| 2026-10-05 | 436K | 777K | 56.1% | 2,876 |
| 2026-10-02 | 582K | 862K | 67.5% | 3,241 |
| 2026-10-01 | 655K | 1.1M | 60.0% | 1,864 |
| 2026-09-30 | 844K | 1.3M | 66.4% | 3,604 |
| 2026-09-29 | 747K | 1.1M | 70.0% | 1,737 |
| 2026-09-28 | 810K | 1.2M | 69.7% | 3,782 |
| 2026-09-25 | 652K | 990K | 65.8% | 44,042 |
| 2026-09-24 | 847K | 1.1M | 75.2% | 4,807 |
| 2026-09-23 | 938K | 1.4M | 67.1% | 6,733 |
| 2026-09-22 | 575K | 969K | 59.4% | 5,433 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 13 October 2026, the fails-to-deliver balance in SLDP is 18,079 shares, down 46,964 shares over the last settlement date. Over the last 30 readings it ranged from 45 shares (31 August 2026) to 149,009 shares (14 August 2026).
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-13 | 18,079 | $2.23 | $40K |
| 2026-10-09 | 65,043 | $2.42 | $157K |
| 2026-10-06 | 1,318 | $2.30 | $3K |
| 2026-10-05 | 53,816 | $2.33 | $125K |
| 2026-10-01 | 7,858 | $2.38 | $19K |
| 2026-09-30 | 141,533 | $2.27 | $321K |
| 2026-09-29 | 1,434 | $2.26 | $3K |
| 2026-09-28 | 44,380 | $2.39 | $106K |
| 2026-09-25 | 6,433 | $2.35 | $15K |
| 2026-09-24 | 103,624 | $2.35 | $244K |
| 2026-09-23 | 24,285 | $2.49 | $60K |
| 2026-09-22 | 1,123 | $2.48 | $3K |
| 2026-09-18 | 4,216 | $2.55 | $11K |
| 2026-09-16 | 7,729 | $2.42 | $19K |
| 2026-09-14 | 4,030 | $2.53 | $10K |
| 2026-09-11 | 22,907 | $2.47 | $57K |
| 2026-09-10 | 18,097 | $2.44 | $44K |
| 2026-09-09 | 7,761 | $2.57 | $20K |
| 2026-09-08 | 21,774 | $2.52 | $55K |
| 2026-09-03 | 23,063 | $2.46 | $57K |
| 2026-09-02 | 103,018 | $2.33 | $240K |
| 2026-09-01 | 35,553 | $2.33 | $83K |
| 2026-08-31 | 45 | $2.33 | $105 |
| 2026-08-28 | 2,465 | $2.38 | $6K |
| 2026-08-27 | 10,736 | $2.34 | $25K |
| 2026-08-26 | 2,793 | $2.34 | $7K |
| 2026-08-25 | 84,367 | $2.30 | $194K |
| 2026-08-20 | 1,761 | $2.32 | $4K |
| 2026-08-18 | 14,400 | $2.35 | $34K |
| 2026-08-14 | 149,009 | $2.39 | $356K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for SLDP in the last 90 days. The most recent filings are listed below. Latest filing: Buettner-Garrett Joshua (Chief Technology Officer) on 2026-09-30.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 34K | $2.27 | $77K | 1.3M |
| 2026-09-30 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 72K | $2.27 | $164K | 1.9M |
| 2026-09-30 | Van Scoter John C. | President & CEO | Tax withholding | 155K | $2.27 | $351K | 4.6M |
| 2026-06-30 | Van Scoter John C. | President & CEO | Tax withholding | 155K | $2.60 | $402K | 4.7M |
| 2026-06-30 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 72K | $2.60 | $188K | 1.9M |
| 2026-06-30 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 34K | $2.60 | $88K | 1.4M |
| 2026-05-20 | Wright MaryAnn | Director | Grant | 44K | $0.00 | $0 | 332K |
| 2026-05-20 | STEPHENS JOHN JOSEPH | Director | Grant | 44K | $0.00 | $0 | 320K |
| 2026-05-20 | Roe Lesa B | Director | Sell | 39K | $2.66 | $104K | 244K |
| 2026-05-20 | Roe Lesa B | Director | Grant | 44K | $0.00 | $0 | 283K |
| 2026-05-20 | Miziolek Aleksandra A | Director | Grant | 44K | $0.00 | $0 | 341K |
| 2026-05-20 | Kreh Susan M | Director | Grant | 44K | $0.00 | $0 | 352K |
| 2026-05-20 | Goldberg Steven H | Director | Grant | 44K | $0.00 | $0 | 163K |
| 2026-05-20 | Awada Kaled | Director | Grant | 44K | $0.00 | $0 | 352K |
| 2026-05-20 | ANDERSON ERIK J | Director | Grant | 44K | $0.00 | $0 | 305K |
| 2026-05-12 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 6K | $3.15 | $17K | 1.4M |
| 2026-05-11 | Van Scoter John C. | President & CEO | Tax withholding | 308K | $3.08 | $947K | 4.9M |
| 2026-05-11 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 136K | $3.08 | $419K | 2.0M |
| 2026-05-11 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 58K | $3.08 | $179K | 1.4M |
| 2026-04-01 | Van Scoter John C. | President & CEO | Grant | 1.3M | $0.00 | $0 | 5.2M |
| 2026-04-01 | Heller Linda C. | CFO, Treasurer, & Secretary | Grant | 380K | $0.00 | $0 | 2.2M |
| 2026-04-01 | Buettner-Garrett Joshua | Chief Technology Officer | Grant | 184K | $0.00 | $0 | 1.5M |
| 2026-03-31 | Van Scoter John C. | President & CEO | Tax withholding | 43K | $2.82 | $121K | 3.9M |
| 2026-03-31 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 27K | $2.82 | $75K | 1.8M |
| 2026-03-31 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 14K | $2.82 | $40K | 1.3M |
| 2025-12-31 | Van Scoter John C. | President & CEO | Tax withholding | 43K | $4.28 | $183K | 4.0M |
| 2025-12-31 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 27K | $4.28 | $114K | 1.8M |
| 2025-12-31 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 14K | $4.28 | $61K | 1.3M |
| 2025-12-04 | ANDERSON ERIK J | Director | Sell | 30K | $5.20 | $156K | 158K |
| 2025-09-30 | Van Scoter John C. | President & CEO | Tax withholding | 43K | $3.52 | $151K | 4.0M |
| 2025-09-30 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 27K | $3.52 | $94K | 1.8M |
| 2025-09-30 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 14K | $3.52 | $50K | 1.3M |
| 2025-06-30 | Van Scoter John C. | President & CEO | Tax withholding | 43K | $2.15 | $92K | 4.0M |
| 2025-06-30 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 26K | $2.15 | $56K | 1.9M |
| 2025-06-30 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 14K | $2.15 | $31K | 1.3M |
| 2025-06-17 | Heller Linda C. | CFO, Treasurer, & Secretary | Tax withholding | 104K | $1.93 | $200K | 1.9M |
| 2025-05-29 | Roe Lesa B | Director | Sell | 29K | $1.69 | $49K | 239K |
| 2025-05-27 | Goldberg Steven H | Director | Sell | 82K | $1.62 | $133K | 119K |
| 2025-05-21 | Awada Kaled | Director | Grant | 119K | $0.00 | $0 | 307K |
| 2025-05-21 | Goldberg Steven H | Director | Grant | 119K | $0.00 | $0 | 201K |
| 2025-05-21 | Kreh Susan M | Director | Grant | 119K | $0.00 | $0 | 307K |
| 2025-05-21 | Miziolek Aleksandra A | Director | Grant | 119K | $0.00 | $0 | 297K |
| 2025-05-21 | Roe Lesa B | Director | Grant | 119K | $0.00 | $0 | 268K |
| 2025-05-21 | STEPHENS JOHN JOSEPH | Director | Grant | 119K | $0.00 | $0 | 276K |
| 2025-05-21 | Wright MaryAnn | Director | Grant | 119K | $0.00 | $0 | 288K |
| 2025-05-21 | ANDERSON ERIK J | Director | Grant | 119K | $0.00 | $0 | 260K |
| 2025-05-12 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 6K | $1.30 | $7K | 1.3M |
| 2025-05-12 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 6K | $1.30 | $8K | 667K |
| 2025-05-09 | Buettner-Garrett Joshua | Chief Technology Officer | Grant | 531K | $0.00 | $0 | 1.3M |
| 2025-05-09 | Heller Linda C. | CFO & Treasurer | Grant | 1.1M | $0.00 | $0 | 2.0M |
| 2025-05-09 | Van Scoter John C. | President & CEO | Grant | 2.8M | $0.00 | $0 | 4.1M |
| 2025-03-31 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 14K | $1.08 | $15K | 812K |
| 2025-03-31 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 18K | $1.08 | $20K | 673K |
| 2025-03-31 | Van Scoter John C. | President & CEO | Tax withholding | 43K | $1.08 | $46K | 1.3M |
| 2025-03-22 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 39K | $1.11 | $44K | 826K |
| 2025-03-22 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 50K | $1.11 | $56K | 691K |
| 2025-03-22 | Van Scoter John C. | President & CEO | Tax withholding | 58K | $1.11 | $65K | 1.3M |
| 2025-03-06 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.13 | $212K | 865K |
| 2025-03-06 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2025-02-10 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.31 | $246K | 865K |
| 2025-02-10 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2025-01-06 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $2.09 | $392K | 865K |
| 2025-01-06 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2024-12-31 | Johnson Derek Colby | Chief Operating Officer | Tax withholding | 7K | $2.14 | $15K | 832K |
| 2024-12-31 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 6K | $2.14 | $12K | 741K |
| 2024-12-31 | Van Scoter John C. | President & CEO | Tax withholding | 28K | $2.14 | $61K | 1.4M |
| 2024-12-31 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 4K | $2.14 | $9K | 865K |
| 2024-12-16 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.07 | $201K | 870K |
| 2024-12-16 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2024-11-12 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2024-11-12 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.07 | $201K | 870K |
| 2024-10-07 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.26 | $236K | 870K |
| 2024-10-07 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2024-10-01 | ANDERSON ERIK J | Director | Sell | 506K | $1.27 | $643K | 188K |
| 2024-09-30 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 4K | $1.37 | $6K | 870K |
| 2024-09-30 | Johnson Derek Colby | Chief Operating Officer | Tax withholding | 7K | $1.37 | $10K | 839K |
| 2024-09-30 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 6K | $1.37 | $8K | 747K |
| 2024-09-30 | Van Scoter John C. | President & CEO | Tax withholding | 28K | $1.37 | $39K | 1.4M |
| 2024-09-10 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.21 | $227K | 874K |
| 2024-09-10 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 1.1M |
| 2024-08-30 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 191K | $0.03 | $6K | 874K |
| 2024-08-29 | Goldberg Steven H | Director | Sell | 59K | $1.45 | $86K | 82K |
| 2024-08-19 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 871K |
| 2024-08-19 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.42 | $266K | 683K |
| 2024-08-09 | Roe Lesa B | Director | Sell | 28K | $1.35 | $38K | 149K |
| 2024-07-09 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.66 | $311K | 683K |
| 2024-07-09 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 871K |
| 2024-06-30 | Buettner-Garrett Joshua | Chief Technology Officer | Tax withholding | 4K | $1.65 | $7K | 683K |
| 2024-06-30 | Johnson Derek Colby | Chief Operating Officer | Tax withholding | 7K | $1.65 | $11K | 846K |
| 2024-06-30 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 6K | $1.65 | $9K | 753K |
| 2024-06-30 | Van Scoter John C. | President & CEO | Tax withholding | 28K | $1.65 | $47K | 1.4M |
| 2024-06-17 | Heller Linda C. | CFO & Treasurer | Grant | 873K | $0.00 | $0 | 873K |
| 2024-06-14 | Van Scoter John C. | President & CEO | Tax withholding | 113K | $1.69 | $191K | 1.5M |
| 2024-06-14 | Buettner-Garrett Joshua | Chief Technology Officer | Sell | 188K | $1.66 | $311K | 687K |
| 2024-06-14 | Buettner-Garrett Joshua | Chief Technology Officer | Exercise or conversion | 188K | $0.03 | $6K | 875K |
| 2024-06-11 | Liebscher James | Chief Legal Officer & Sec | Tax withholding | 13K | $1.70 | $22K | 758K |
| 2024-05-22 | Awada Kaled | Director | Grant | 82K | $0.00 | $0 | 189K |
| 2024-05-22 | Goldberg Steven H | Director | Grant | 82K | $0.00 | $0 | 142K |
| 2024-05-22 | Kreh Susan M | Director | Grant | 82K | $0.00 | $0 | 189K |
| 2024-05-22 | Roe Lesa B | Director | Grant | 82K | $0.00 | $0 | 177K |
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. JSON1 Form 144 notice on file for SLDP worth $104K at the prices reported; 0 in the last 90 days worth $0. Latest: Roe Lesa B filed on 2026-05-20 to sell 39,207 shares ($104K) from 2026-05-20.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-05-20 | Roe Lesa BDirector | 39K | $104K | 0.017% | 2026-05-20 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON3 holders report 5% or more of SLDP in their latest filing, all on Schedule 13G (passive). The largest reported stake is CVI Investments, Inc. at 9.9% of the class (25,218,311 shares), filed 2026-08-14 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 1 | CVI Investments, Inc.corporation | 25.2M | 9.9% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 1 | Heights Capital Management, Inc.corporation | 25.2M | 9.9% | 2026-06-30 |
| 2026-07-30 | 13G/Ano. 1 | BlackRock, Inc.parent holding company | 16.9M | 7.5% | 2026-06-30 |
| 2026-06-08 | 13D/Ano. 1 | Bayerische Motoren Werke AGcorporation, parent holding company | 10.5M | 4.7% | 2026-04-20 |
| 2026-06-08 | 13D/Ano. 1 | BMW INTEC Beteiligungs GmbHparent holding company, other entity | 10.5M | 4.7% | 2026-04-20 |
| 2026-06-08 | 13D/Ano. 1 | BMW Holding B.V.other entity | 10.5M | 4.7% | 2026-04-20 |
| 2026-03-27 | 13G/Ano. 1 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2025-09-23 | 13D/Ano. 2 | Pierre F. Lapeyre, Jr.individual | 9.0M | 4.8% | 2025-09-19 |
| 2025-09-23 | 13D/Ano. 2 | David M. Leuschenindividual | 6.7M | 3.6% | 2025-09-19 |
13F holders
Tracked managers holding SLDP at their latest 13F. JSON6 of the 30 tracked managers held SLDP at their latest 13F, $16.6M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $7.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 5 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| D. E. Shaw & Co. | 2026-06-30 | 3.0M | $7.7M | 0.00% | -2.6M |
| Citadel Advisors | 2026-06-30 | 2.6M | $6.8M | 0.00% | +973K |
| Point72 Asset Management | 2026-06-30 | 497K | $1.3M | 0.00% | -77K |
| Millennium Management | 2026-06-30 | 242K | $627K | 0.00% | -1.2M |
| AQR Capital Management | 2026-06-30 | 45K | $118K | 0.00% | -30K |
| Two Sigma Investments | 2026-06-30 | 14K | $36K | 0.00% | -133K |
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
Solid Power 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 Solid Power (SLDP), SEC CIK 1844862, listed on Nasdaq, classified by the SEC as miscellaneous electrical machinery, equipment & supplies. 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 2026-10-13.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 2026-05-20.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 2026-08-04.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 2026-09-30.JSON and CSV
- Company record
- EDGAR filing index for CIK 1844862Ticker, 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 SLDP is sold short?
30,550,859 shares were held short at the 2026-10-15 settlement, 11.1 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 SLDP's daily short volume?
On 2026-11-02, 920,400 of the 1,495,293 SLDP shares reported to FINRA were sold short, 61.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does SLDP have fails to deliver?
The SEC's latest file shows 18,079 SLDP shares failed to deliver at settlement 2026-10-13. Fails are reported per settlement date and published twice a month with a lag.
Are SLDP insiders buying or selling?
No open-market insider trades were reported for SLDP in the last 90 days. The most recent filings are listed below. Latest filing: Buettner-Garrett Joshua (Chief Technology Officer) on 2026-09-30.
Have SLDP insiders filed to sell?
1 Form 144 notice on file for SLDP worth $104K at the prices reported; 0 in the last 90 days worth $0. Latest: Roe Lesa B filed on 2026-05-20 to sell 39,207 shares ($104K) from 2026-05-20.
Who owns 5% or more of SLDP?
3 holders report 5% or more of SLDP in their latest filing, all on Schedule 13G (passive). The largest reported stake is CVI Investments, Inc. at 9.9% of the class (25,218,311 shares), filed 2026-08-14 for an event on 2026-06-30.
Which tracked 13F managers own SLDP?
6 of the 30 tracked 13F managers held SLDP shares at their latest filing, $16.6M in all. The largest: D. E. Shaw & Co. (3.0M shares, $7.7M), Ken Griffin's Citadel Advisors (2.6M shares, $6.8M), Steve Cohen's Point72 Asset Management (497K shares, $1.3M), Izzy Englander's Millennium Management (242K shares, $627K), Cliff Asness's AQR Capital Management (45K shares, $118K), Two Sigma Investments (14K shares, $36K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.