Girsky Stephen J

Director at DANA Inc · on record since Feb 11, 2008
Director at Brookfield Business Partners L.P. · on record since Mar 31, 2026
Director at General Motors Co · on record since Jun 7, 2010
Vice Chairman at General Motors Co · on record since Jun 7, 2010
Director at Motors Liquidation Co · on record since Feb 14, 2011
Senior Advisor at Motors Liquidation Co · on record since Apr 2, 2014
Director at UNITED STATES STEEL CORP · on record since Apr 27, 2016
Director at Nikola Corp · on record since May 31, 2018
10% owner at Nikola Corp · on record since May 31, 2018
Chief Executive Officer at Nikola Corp · on record since May 31, 2018

Insider trading activity of Girsky Stephen J

Transactions on record: 261; since Apr 1, 2008

Open-market buys: 16; $975.7K

Open-market sells: 11; $4.3M

Companies traded: 7; last filing Mar 31, 2026

Figures computed from official regulatory filings — .

Companies where Girsky Stephen J has traded

Brookfield Business Partners L.P.2 tx · Mar 31, 2026
Nikola Corp20 tx · $611.9K · Aug 13, 2024
UNITED STATES STEEL CORP13 tx · $760.1K · Jan 19, 2021
VectoIQ Acquisition Corp. II1 tx · Jan 13, 2021
Motors Liquidation Co206 tx · $19.7M · Apr 4, 2016
7 tx · $214.1K · Dec 1, 2010
12 tx · Mar 12, 2010

Track record of Girsky Stephen J

Statistical track record

Free account

Open-market buys: 19

Last buy: May 20, 2024

Win rates, median returns and the proven-insider analysis come with a free account.

Transaction history of Girsky Stephen J

Co-insiders of Girsky Stephen J

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Brookfield Business Partners L.P.Listing unverified	Mar 31, 2026	Other	-13,400	—	n/a (No price was disclosed in the filing)		SEC
Brookfield Business Partners L.P.Listing unverified	Mar 31, 2026	OtherD (derivative)	-6,700	—	n/a (No price was disclosed in the filing)		SEC
Nikola CorpListing unverified	Aug 13, 2024	Sell	-4,636	7.75 USD	$35.9K		SEC
Nikola CorpListing unverified	Aug 8, 2024	Sell	-4,636	7.75 USD	$35.9K		SEC
Nikola CorpListing unverified	May 20, 2024	Buy	1,000,000	0.54 USD	$540K	conv 71Unusual sizeFirst in 12mo	SEC
Nikola CorpListing unverified	Apr 29, 2024	Award	3,978,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Aug 7, 2023	Award	550,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Apr 26, 2023	Award	175,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	May 2, 2022	Award	39,730	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Apr 26, 2021	Award	27,802	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
UNITED STATES STEEL CORPListing unverified	Jan 19, 2021	Award	16,994.63	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
VectoIQ Acquisition Corp. IIListing unverified	Jan 13, 2021	Buy	900,000	—	n/a (No price was disclosed in the filing)	conv 71First in 12mo	SEC
Nikola CorpListing unverified	Oct 29, 2020	Award	4,665	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Aug 25, 2020	Award	21,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Jun 22, 2020	Other	-4,586,132	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
Nikola CorpListing unverified	Jun 22, 2020	OtherD (derivative)	180,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
Nikola CorpListing unverified	Jun 22, 2020	Other	1,561,454	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
Nikola CorpListing unverified	Jun 22, 2020	OtherD (derivative)	-525,909	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
UNITED STATES STEEL CORPListing unverified	Apr 16, 2020	Award	2,517.62	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
UNITED STATES STEEL CORPListing unverified	Jan 17, 2020	Award	23,255.24	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
UNITED STATES STEEL CORPListing unverified	Nov 15, 2019	Buy	700	13.48 USD	$9.4K	conv 20	SEC
UNITED STATES STEEL CORPListing unverified	May 22, 2019	Buy	1,000	14.50 USD	$14.5K	conv 13	SEC
UNITED STATES STEEL CORPListing unverified	May 9, 2019	Buy	1,000	16.18 USD	$16.2K	conv 17	SEC
UNITED STATES STEEL CORPListing unverified	Jan 17, 2019	Award	7,949.56	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Oct 4, 2018	BuyD (derivative)	1,441	—	n/a (No price was disclosed in the filing)	Cluster	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
Brookfield Business Partners L.P.Listing unverified	Mar 31, 2026	Other	-13,400	—	n/a (No price was disclosed in the filing)		SEC
Brookfield Business Partners L.P.Listing unverified	Mar 31, 2026	OtherD (derivative)	-6,700	—	n/a (No price was disclosed in the filing)		SEC
Nikola CorpListing unverified	Aug 13, 2024	Sell	-4,636	7.75 USD	$35.9K		SEC
Nikola CorpListing unverified	Aug 8, 2024	Sell	-4,636	7.75 USD	$35.9K		SEC
Nikola CorpListing unverified	May 20, 2024	Buy	1,000,000	0.54 USD	$540K	conv 71Unusual sizeFirst in 12mo	SEC
Nikola CorpListing unverified	Apr 29, 2024	Award	3,978,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Aug 7, 2023	Award	550,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Apr 26, 2023	Award	175,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	May 2, 2022	Award	39,730	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Apr 26, 2021	Award	27,802	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
UNITED STATES STEEL CORPListing unverified	Jan 19, 2021	Award	16,994.63	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
VectoIQ Acquisition Corp. IIListing unverified	Jan 13, 2021	Buy	900,000	—	n/a (No price was disclosed in the filing)	conv 71First in 12mo	SEC
Nikola CorpListing unverified	Oct 29, 2020	Award	4,665	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Aug 25, 2020	Award	21,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Jun 22, 2020	Other	-4,586,132	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
Nikola CorpListing unverified	Jun 22, 2020	OtherD (derivative)	180,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
Nikola CorpListing unverified	Jun 22, 2020	Other	1,561,454	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
Nikola CorpListing unverified	Jun 22, 2020	OtherD (derivative)	-525,909	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
UNITED STATES STEEL CORPListing unverified	Apr 16, 2020	Award	2,517.62	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
UNITED STATES STEEL CORPListing unverified	Jan 17, 2020	Award	23,255.24	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
UNITED STATES STEEL CORPListing unverified	Nov 15, 2019	Buy	700	13.48 USD	$9.4K	conv 20	SEC
UNITED STATES STEEL CORPListing unverified	May 22, 2019	Buy	1,000	14.50 USD	$14.5K	conv 13	SEC
UNITED STATES STEEL CORPListing unverified	May 9, 2019	Buy	1,000	16.18 USD	$16.2K	conv 17	SEC
UNITED STATES STEEL CORPListing unverified	Jan 17, 2019	Award	7,949.56	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Nikola CorpListing unverified	Oct 4, 2018	BuyD (derivative)	1,441	—	n/a (No price was disclosed in the filing)	Cluster	SEC