SEC Insider Transactions from Buettner-Garrett Joshua.

Last updated: 2026-04-02 23:05 UTC | Total transactions: 72

Buettner-Garrett Joshua has filed 72 insider transactions across 1 company since March 2023.

Most recent transaction: a grant/award of 183518 shares of Solid Power, Inc. ($SLDP) on April 01, 2026.

Activity breakdown: 0 open-market purchases and 16 sales.

Set Up your own filters →
Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
April 1, 2026 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer A Common Stock 183518 $0.00 1,463,443.0000 220,578,327 14.34% 0.08%
March 31, 2026 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 14284 $2.82 1,279,925.0000 220,578,327 1.10% 0.01%
Dec. 31, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 14284 $4.28 1,294,209.0000 191,023,570 1.09% 0.01%
Sept. 30, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 14284 $3.52 1,308,493.0000 181,284,380 1.08% 0.01%
June 30, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 14285 $2.15 1,322,777.0000 179,362,078 1.07% 0.01%
May 12, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 5520 $1.30 1,337,062.0000 179,362,078 0.41% 0.00%
May 9, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer A Common Stock 531034 $0.00 1,342,582.0000 179,362,078 65.43% 0.30%
March 31, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 14285 $1.08 811,548.0000 181,992,040 1.73% 0.01%
March 22, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 39471 $1.11 825,833.0000 181,992,040 4.56% 0.02%
March 6, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.13 865,304.0000 181,992,040 17.81% 0.10%
March 6, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 0.0000 181,992,040 100.00% 0.10%
March 6, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,052,804.0000 181,992,040 21.67% 0.10%
Feb. 10, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.31 865,304.0000 180,387,669 17.81% 0.10%
Feb. 10, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 187,500.0000 180,387,669 50.00% 0.10%
Feb. 10, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,052,804.0000 180,387,669 21.67% 0.10%
Jan. 6, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $2.09 865,304.0000 180,387,669 17.81% 0.10%
Jan. 6, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 375,000.0000 180,387,669 33.33% 0.10%
Jan. 6, 2025 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,052,804.0000 180,387,669 21.67% 0.10%
Dec. 31, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 4416 $2.14 865,304.0000 180,387,669 0.51% 0.00%
Dec. 16, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,057,220.0000 180,387,669 21.56% 0.10%
Dec. 16, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.07 869,720.0000 180,387,669 17.74% 0.10%
Dec. 16, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 562,500.0000 180,387,669 25.00% 0.10%
Nov. 12, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.07 869,720.0000 180,387,669 17.74% 0.10%
Nov. 12, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 750,000.0000 180,387,669 20.00% 0.10%
Nov. 12, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,057,220.0000 180,387,669 21.56% 0.10%
Oct. 7, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.26 869,720.0000 178,962,858 17.74% 0.10%
Oct. 7, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 937,500.0000 178,962,858 16.67% 0.10%
Oct. 7, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,057,220.0000 178,962,858 21.56% 0.10%
Sept. 30, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 4416 $1.37 869,720.0000 178,962,858 0.51% 0.00%
Sept. 10, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.21 874,136.0000 178,962,858 17.66% 0.10%
Sept. 10, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 1,125,000.0000 178,962,858 14.29% 0.10%
Sept. 10, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 1,061,636.0000 178,962,858 21.45% 0.10%
Aug. 30, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 191079 $0.03 874,136.0000 178,962,858 27.97% 0.11%
Aug. 30, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 191079 $0.00 1,312,500.0000 178,962,858 12.71% 0.11%
Aug. 19, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 1,503,579.0000 178,962,858 11.09% 0.10%
Aug. 19, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.42 683,057.0000 178,962,858 21.54% 0.10%
Aug. 19, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 870,557.0000 178,962,858 27.45% 0.10%
July 9, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.66 683,057.0000 177,045,891 21.54% 0.11%
July 9, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 1,691,079.0000 177,045,891 9.98% 0.11%
July 9, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 870,557.0000 177,045,891 27.45% 0.11%
June 30, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 4416 $1.65 683,057.0000 177,045,891 0.64% 0.00%
June 14, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.66 687,473.0000 177,045,891 21.43% 0.11%
June 14, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 1,878,579.0000 177,045,891 9.08% 0.11%
June 14, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 874,973.0000 177,045,891 27.27% 0.11%
May 21, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.68 687,473.0000 177,045,891 21.43% 0.11%
May 21, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 2,066,079.0000 177,045,891 8.32% 0.11%
May 21, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 874,973.0000 177,045,891 27.27% 0.11%
May 12, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 5520 $1.72 687,473.0000 177,045,891 0.80% 0.00%
April 3, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 2,253,579.0000 181,091,826 7.68% 0.10%
April 3, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 880,493.0000 181,091,826 27.06% 0.10%
April 3, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.86 692,993.0000 181,091,826 21.29% 0.10%
March 31, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 4416 $2.03 692,993.0000 181,091,826 0.63% 0.00%
March 22, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer A Stock Option (Right to Buy) 683372 $0.00 683,372.0000 181,091,826 9999.99% 0.38%
March 22, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer A Common Stock 360870 $0.00 697,409.0000 181,091,826 107.23% 0.20%
March 18, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 2,441,079.0000 181,091,826 7.13% 0.10%
March 18, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.36 336,539.0000 181,091,826 35.78% 0.10%
March 18, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 524,039.0000 181,091,826 55.71% 0.10%
March 2, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 19894 $1.64 336,539.0000 181,091,826 5.58% 0.01%
Feb. 7, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 2,628,579.0000 178,437,367 6.66% 0.11%
Feb. 7, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.58 356,433.0000 178,437,367 34.47% 0.11%
Feb. 7, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 543,933.0000 178,437,367 52.60% 0.11%
Jan. 11, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 543,933.0000 178,437,367 52.60% 0.11%
Jan. 11, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.29 356,433.0000 178,437,367 34.47% 0.11%
Jan. 11, 2024 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 2,816,079.0000 178,437,367 6.24% 0.11%
Dec. 22, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 150000 $0.03 356,433.0000 178,437,367 72.66% 0.08%
Dec. 22, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 150000 $0.00 3,003,579.0000 178,437,367 4.76% 0.08%
Dec. 5, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer S Common Stock 187500 $1.47 206,433.0000 178,437,367 47.60% 0.11%
Dec. 5, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Stock Option (Right to Buy) 187500 $0.00 3,153,579.0000 178,437,367 5.61% 0.11%
Dec. 5, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer M Common Stock 187500 $0.03 393,933.0000 178,437,367 90.83% 0.11%
May 12, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer F Common Stock 5519 $2.07 206,433.0000 177,829,714 2.60% 0.00%
March 2, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer A Common Stock 161493 $0.00 211,952.0000 176,782,721 320.05% 0.09%
March 2, 2023 Solid Power, Inc. $SLDP Buettner-Garrett Joshua Chief Technology Officer A Stock Option (Right to Buy) 349089 $0.00 349,089.0000 176,782,721 9999.99% 0.20%