JANE STREET GROUP, LLC

Holdings History for TECOGEN INC. - Common Stock, $0.001 par value (TGEN)

Symbol: TGEN on NYSE
Investment type: Equity / Common Stock, $0.001 par value

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Option	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
31 Dec 2025		0%	+0%	$1,025,578	207,607	+114,497	+123%	$4.94	Q4 2025
31 Dec 2025	call	0%	+0%	$417,430	84,500	+34,500	+69%	$4.94	Q4 2025
31 Dec 2025	put	0%	-0%	$127,946	25,900	-52,800	-67%	$4.94	Q4 2025
30 Sep 2025		0%	+0%	$820,300	93,110	+93,110	NEW	$8.81	Q3 2025
30 Sep 2025	call	0%	+0%	$440,500	50,000	+50,000	NEW	$8.81	Q3 2025
30 Sep 2025	put	0%	+0%	$693,347	78,700	+78,700	NEW	$8.81	Q3 2025

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.