Erik J. Anderson - May 11, 2023 Form 4 Insider Report for Solid Power, Inc. (SLDP)

Role: Director
Signature: /s/ Erik J Anderson
Stock symbol: SLDP
Transactions as of: May 11, 2023
Transactions value $: $0
Form type: 4
Date filed: 5/12/2023, 05:30 PM
Previous filing: Mar 8, 2023
Next filing: May 17, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SLDP	Common Stock	Other	$0	-313K	-31.02%	$0.00	696K	May 11, 2023	By WestRiver Management, LLC and affiliates	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Pro rata distribution without consideration by WRG DCRC Investors, LLC ("WRG DCRC Investors") to its members ("In-Kind Distribution").
F2	Represents 1,901 shares owned directly by WRG DCRC, LLC ("WRG DCRC"), 187,617 shares owned directly by WestRiver Management, LLC ("WestRiver Management") and 506,283 shares owned directly by WRG INV41, LLC ("WRG INV41") after giving effect to the In-Kind Distribution. WestRiver Management is the sole managing member of WRG DCRC and WRG INV41. The Reporting Person is the sole member and sole manager of WestRiver Management. As a result, the Reporting Person may be deemed to beneficially own the securities held of record by WestRiver Management, WRG DCRC and WRG INV41, LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein.

Content

Pro rata distribution without consideration by WRG DCRC Investors, LLC ("WRG DCRC Investors") to its members ("In-Kind Distribution").

Represents 1,901 shares owned directly by WRG DCRC, LLC ("WRG DCRC"), 187,617 shares owned directly by WestRiver Management, LLC ("WestRiver Management") and 506,283 shares owned directly by WRG INV41, LLC ("WRG INV41") after giving effect to the In-Kind Distribution. WestRiver Management is the sole managing member of WRG DCRC and WRG INV41. The Reporting Person is the sole member and sole manager of WestRiver Management. As a result, the Reporting Person may be deemed to beneficially own the securities held of record by WestRiver Management, WRG DCRC and WRG INV41, LLC. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of such Reporting Person's pecuniary interest therein.