Solid Power, Inc. (SLDP) has 20 known insider and institutional holders on record. The largest holder is Campbell Douglas M with 9,870,214 shares. Other notable holders include Decarbonization Plus Acquisition Sponsor III LLC and LEUSCHEN DAVID M.
Over the last 12 months, insiders have made 33 transactions in SLDP stock — 14 buys (valued at RSU Award) and 3 sells (valued at $338.56K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
SLDP Insider Ownership
Top Holder
Campbell Douglas M
9,870,214 shares
Buys (12 mo)
14
$0.00 value
Sells (12 mo)
3
$338.56K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Campbell Douglas M |
Chief Executive Officer |
9,870,214 |
2022-08-31 |
|
| 2 |
Decarbonization Plus Acquisition Sponsor Iii Llc |
10 Percent Owner |
7,367,353 |
2021-12-10 |
|
| 3 |
Leuschen David M |
Director |
7,277,487 |
2023-01-26 |
|
| 4 |
Van Scoter John C. |
President & CEO |
3,912,333 |
2026-04-02 |
|
| 5 |
Volta Energy Technologies, Llc |
Director |
2,246,794 |
2022-06-28 |
|
| 6 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
1,776,928 |
2026-04-02 |
|
| 7 |
Buettner-garrett Joshua |
Chief Technology Officer |
1,279,925 |
2026-04-02 |
|
| 8 |
Johnson Derek Colby |
Chief Operating Officer |
832,254 |
2025-01-02 |
|
| 9 |
Jansen David B |
President; Interim CEO |
757,102 |
2023-05-12 |
|
| 10 |
Paprzycki Kevin A. |
CFO & Treasurer |
738,364 |
2024-05-13 |
|
| 11 |
Liebscher James |
Chief Legal Officer & Sec |
667,157 |
2025-05-13 |
|
| 12 |
Kreh Susan M |
Director |
307,488 |
2025-05-22 |
|
| 13 |
Awada Kaled |
Director |
307,488 |
2025-05-22 |
|
| 14 |
Miziolek Aleksandra A |
Director |
296,929 |
2025-05-22 |
|
| 15 |
Wright Maryann |
Director |
287,597 |
2025-05-22 |
|
| 16 |
Stephens John Joseph |
Director |
276,070 |
2025-05-22 |
|
| 17 |
Roe Lesa B |
Director |
239,049 |
2025-05-30 |
|
| 18 |
Mcdermott James Ac |
Director |
199,543 |
2021-12-10 |
|
| 19 |
Anderson Erik J |
Director |
157,617 |
2025-12-08 |
|
| 20 |
Goldberg Steven H |
Director |
118,808 |
2025-05-28 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Buettner-garrett Joshua |
Chief Technology Officer |
RSU Award |
183,518 |
- |
- |
| 2026-03-31 |
Buettner-garrett Joshua |
Chief Technology Officer |
Tax Withholding of RSU |
14,284 |
$2.82 |
$40.28K |
| 2026-04-01 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
RSU Award |
380,348 |
- |
- |
| 2026-03-31 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
Tax Withholding of RSU |
26,659 |
$2.82 |
$75.18K |
| 2026-04-01 |
Van Scoter John C. |
President & CEO |
RSU Award |
1,267,828 |
- |
- |
| 2026-03-31 |
Van Scoter John C. |
President & CEO |
Tax Withholding of RSU |
42,842 |
$2.82 |
$120.81K |
| 2025-12-31 |
Buettner-garrett Joshua |
Chief Technology Officer |
Tax Withholding of RSU |
14,284 |
$4.28 |
$61.14K |
| 2025-12-31 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
Tax Withholding of RSU |
26,605 |
$4.28 |
$113.87K |
| 2025-12-31 |
Van Scoter John C. |
President & CEO |
Tax Withholding of RSU |
42,842 |
$4.28 |
$183.36K |
| 2025-12-04 |
Anderson Erik J |
Director |
Informative Sell |
30,000 |
$5.20 |
$156.07K |
| 2025-09-30 |
Buettner-garrett Joshua |
Chief Technology Officer |
Tax Withholding of RSU |
14,284 |
$3.52 |
$50.28K |
| 2025-09-30 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
Tax Withholding of RSU |
26,605 |
$3.52 |
$93.65K |
| 2025-09-30 |
Van Scoter John C. |
President & CEO |
Tax Withholding of RSU |
42,842 |
$3.52 |
$150.8K |
| 2025-06-30 |
Buettner-garrett Joshua |
Chief Technology Officer |
Tax Withholding of RSU |
14,285 |
$2.15 |
$30.71K |
| 2025-06-30 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
Tax Withholding of RSU |
25,950 |
$2.15 |
$55.79K |
| 2025-06-30 |
Van Scoter John C. |
President & CEO |
Tax Withholding of RSU |
42,841 |
$2.15 |
$92.11K |
| 2025-06-17 |
Heller Linda C. |
CFO, Treasurer, & Secretary |
Tax Withholding of RSU |
103,800 |
$1.93 |
$200.33K |
| 2025-05-29 |
Roe Lesa B |
Director |
Informative Sell |
29,000 |
$1.69 |
$49.01K |
| 2025-05-27 |
Goldberg Steven H |
Director |
Informative Sell |
82,365 |
$1.62 |
$133.48K |
| 2025-05-21 |
Roe Lesa B |
Director |
RSU Award |
118,808 |
- |
- |
| 2025-05-21 |
Goldberg Steven H |
Director |
RSU Award |
118,808 |
- |
- |
| 2025-05-21 |
Awada Kaled |
Director |
RSU Award |
118,808 |
- |
- |
| 2025-05-21 |
Miziolek Aleksandra A |
Director |
RSU Award |
118,808 |
- |
- |
| 2025-05-21 |
Kreh Susan M |
Director |
RSU Award |
118,808 |
- |
- |
| 2025-05-21 |
Wright Maryann |
Director |
RSU Award |
118,808 |
- |
- |
