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JB

Joshua Buettner-garrett

SLDP
CHIEF TECHNOLOGY OFFICER · SOLID POWER, INC. · CIK 0001880162
FILING MIX · LIFETIME36%/64%
BUYS
29
SELLS
51
TOTAL VALUE
$5.06M
COMPANIES
1
ACTIVE SINCE
Dec 2021
HOLDINGS NOW
1,366,018
AVG SELL PX
$1.52
TRADE KIND
SHOWING 80 / 80
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
16 backtested trades · 8 horizons · 9 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Joshua Buettner-garrett, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d16+43.75%+3.80%+0.13%+3.67%-0.15%—
14d16+50.00%+8.48%+0.44%+8.04%-0.61%—
30d16+62.50%+1.26%+0.02%+1.24%-3.78%—
60d16+56.25%+3.71%+1.87%+1.84%-2.00%—
90d16+43.75%+2.85%+3.24%-0.39%+2.59%—
180d16+43.75%+31.29%+7.11%+24.18%+1.31%—
1y16+31.25%+132.45%+16.46%+115.99%+87.36%—
2y16(9 pending)+0.00%+152.24%+39.77%+112.48%+100.50%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SLDP · 1,366,018 shares · as of Jun 30, 2026
01,380,1842,760,3674,140,5515,520,73420222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 29 buys / 51 sellsCOVERAGE · 19 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
33,824$2.60$87.9K1,366,018Jun 30, 2026Jul 1, 2026 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
5,519$3.15$17.4K1,399,842May 12, 2026May 13, 2026 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
58,082$3.08$178.6K1,405,361May 11, 2026May 12, 2026 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
183,518——1,463,443Apr 1, 2026Apr 2, 2026 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
14,284$2.82$40.3K1,279,925Mar 31, 2026Apr 2, 2026 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
14,284$4.28$61.1K1,294,209Dec 31, 2025Jan 5, 2026 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
14,284$3.52$50.3K1,308,493Sep 30, 2025Oct 1, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
14,285$2.15$30.7K1,322,777Jun 30, 2025Jul 1, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
5,520$1.30$7.2K1,337,062May 12, 2025May 13, 2025 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
531,034——1,342,582May 9, 2025May 12, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
14,285$1.08$15.4K811,548Mar 31, 2025Apr 1, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
39,471$1.11$43.8K825,833Mar 22, 2025Mar 25, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——0Mar 6, 2025Mar 7, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.13$211.6K865,304Mar 6, 2025Mar 7, 2025 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,052,804Mar 6, 2025Mar 7, 2025 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,052,804Feb 10, 2025Feb 12, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.31$246.4K865,304Feb 10, 2025Feb 12, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——187,500Feb 10, 2025Feb 12, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——375,000Jan 6, 2025Jan 7, 2025 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,052,804Jan 6, 2025Jan 7, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$2.09$392.3K865,304Jan 6, 2025Jan 7, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
4,416$2.14$9.5K865,304Dec 31, 2024Jan 2, 2025 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.07$201.4K869,720Dec 16, 2024Dec 17, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——562,500Dec 16, 2024Dec 17, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,057,220Dec 16, 2024Dec 17, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——750,000Nov 12, 2024Nov 13, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.07$201.4K869,720Nov 12, 2024Nov 13, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,057,220Nov 12, 2024Nov 13, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,057,220Oct 7, 2024Oct 8, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——937,500Oct 7, 2024Oct 8, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.26$237.1K869,720Oct 7, 2024Oct 8, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
4,416$1.37$6.0K869,720Sep 30, 2024Oct 1, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.21$227.3K874,136Sep 10, 2024Sep 11, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K1,061,636Sep 10, 2024Sep 11, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——1,125,000Sep 10, 2024Sep 11, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
191,079——1,312,500Aug 30, 2024Aug 30, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
191,079$0.03$5.7K874,136Aug 30, 2024Aug 30, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.42$267.1K683,057Aug 19, 2024Aug 20, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K870,557Aug 19, 2024Aug 20, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——1,503,579Aug 19, 2024Aug 20, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——1,691,079Jul 9, 2024Jul 10, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.66$312.1K683,057Jul 9, 2024Jul 10, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K870,557Jul 9, 2024Jul 10, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
4,416$1.65$7.3K683,057Jun 30, 2024Jul 2, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——1,878,579Jun 14, 2024Jun 17, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K874,973Jun 14, 2024Jun 17, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.66$311.2K687,473Jun 14, 2024Jun 17, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K874,973May 21, 2024May 22, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.68$315.1K687,473May 21, 2024May 22, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——2,066,079May 21, 2024May 22, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
5,520$1.72$9.5K687,473May 12, 2024May 13, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500$1.86$348.9K692,993Apr 3, 2024Apr 4, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K880,493Apr 3, 2024Apr 4, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——2,253,579Apr 3, 2024Apr 4, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
4,416$2.03$9.0K692,993Mar 31, 2024Apr 1, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
360,870——697,409Mar 22, 2024Mar 26, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
683,372——683,372Mar 22, 2024Mar 26, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——2,441,079Mar 18, 2024Mar 19, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K524,039Mar 18, 2024Mar 19, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.36$254.7K336,539Mar 18, 2024Mar 19, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
19,894$1.64$32.6K336,539Mar 2, 2024Mar 4, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.58$296.1K356,433Feb 7, 2024Feb 8, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——2,628,579Feb 7, 2024Feb 8, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K543,933Feb 7, 2024Feb 8, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——2,816,079Jan 11, 2024Jan 12, 2024 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K543,933Jan 11, 2024Jan 12, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.29$242.1K356,433Jan 11, 2024Jan 12, 2024 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
150,000——3,003,579Dec 22, 2023Dec 22, 2023 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
150,000$0.03$4.5K356,433Dec 22, 2023Dec 22, 2023 ↗View →
SLDP
SOLID POWER, INC.
PURCHASE
Chief Technology Officer
187,500$0.03$5.6K393,933Dec 5, 2023Dec 6, 2023 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
187,500——3,153,579Dec 5, 2023Dec 6, 2023 ↗View →
SLDP
SOLID POWER, INC.
SALE10b5-1
10b5-1 plan
187,500$1.47$276.1K206,433Dec 5, 2023Dec 6, 2023 ↗View →
SLDP
SOLID POWER, INC.
SALE
Chief Technology Officer
5,519$2.07$11.4K206,433May 12, 2023May 12, 2023 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
349,089——349,089Mar 2, 2023Mar 3, 2023 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
161,493——211,952Mar 2, 2023Mar 3, 2023 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
50,459——50,459May 12, 2022May 13, 2022 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
118,313——118,313May 12, 2022May 13, 2022 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
477,296——5,520,734Dec 8, 2021Dec 8, 2021 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
1,702,359——5,043,438Dec 8, 2021Dec 8, 2021 ↗View →
SLDP
SOLID POWER, INC.
PURCHASEGRANT
Stock grant
3,341,079——3,341,089Dec 8, 2021Dec 8, 2021 ↗View →
Other insiders · SLDP
Loading peer insiders…
About this filer
CIK 0001880162
ROLE
Chief Technology Officer
PRIMARY
SLDP
COMPANIES
1
ACTIVE SINCE
Dec 2021
MARKETPEEL · /INSIDER/0001880162DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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