Brandon Heffinger

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
1 Sep 23	NPWR NET Power	Class A Common Stock	Sell	Dispose S	No	No	14.1881	34,858	494.57 k	0
31 Aug 23	NPWR NET Power	Class A Common Stock	Sell	Dispose S	No	No	13.9331	39,000	543.39 k	34,858
30 Aug 23	NPWR NET Power	Class A Common Stock	Sell	Dispose S	No	No	14.3087	76,142	1.09 mm	73,858
28 Aug 23	NPWR NET Power	Class B Common Stock	Other	Dispose J	No	No	0	150,000	0.00	214,559
28 Aug 23	NPWR NET Power	Class A Common Stock	Conversion	Acquire C	No	No	0	150,000	0.00	150,000
28 Aug 23	NPWR NET Power	Class A Units of NET Power Operations LLC Class A Common Stock	Conversion	Dispose C	No	No	0	150,000	0.00	214,559
21 Aug 23	NPWR NET Power	Class A Common Stock	Sell	Dispose S	No	No	15.1913	27,771	421.88 k	0
18 Aug 23	NPWR NET Power	Class A Common Stock	Sell	Dispose S	No	No	15.3928	67,285	1.04 mm	27,771
17 Aug 23	NPWR NET Power	Class A Common Stock	Sell	Dispose S	No	No	14.8043	54,944	813.41 k	95,056

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.