Herlin Robert S

Director at EVOLUTION PETROLEUM CORP · on record since Feb 24, 2006
Director at Boots & Coots, Inc. · on record since Dec 12, 2006
10% owner at EVOLUTION PETROLEUM CORP · on record since Oct 28, 2010
Director at Enservco Corp · on record since Jan 21, 2015
Pres.& Chief Exec. Officer at EVOLUTION PETROLEUM CORP · on record since Apr 11, 2005

Insider trading activity of Herlin Robert S

Transactions on record: 101; since Aug 27, 2004

Open-market buys: 3; $40.6K

Open-market sells: 19; $3.2M

Companies traded: 3; last filing Dec 8, 2025

Figures computed from official regulatory filings — .

Companies where Herlin Robert S has traded

EVOLUTION PETROLEUM CORP79 tx · $6.3M · Dec 8, 2025
Enservco Corp8 tx · $25.6K · Jun 24, 2024
Boots & Coots, Inc.14 tx · $887.9K · Sep 21, 2010

Track record of Herlin Robert S

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Herlin Robert S

Co-insiders of Herlin Robert S

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
EVOLUTION PETROLEUM CORPListing on record	Dec 8, 2025	Award	24,214	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 9, 2024	Award	17,483	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Jun 24, 2024	Award	225,225	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Apr 8, 2024	Award	119,048	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 11, 2023	Award	16,807	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Apr 11, 2023	Award	18,405	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 12, 2022	Award	14,859	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Mar 8, 2022	Award	35,170	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 10, 2021	Award	11,386	5.27 USD	$60K		SEC
Enservco CorpListing on record	Jan 26, 2021	Award	16,043	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Jan 26, 2021	Award	29,412	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 10, 2020	Award	19,868	3.02 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 11, 2019	Award	11,279	5.32 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 7, 2018	Award	7,043	8.52 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 11, 2017	Award	8,824	6.80 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Nov 8, 2017	Exercise	8,621	7.20 USD	$62.1K		SEC
EVOLUTION PETROLEUM CORPListing on record	Nov 8, 2017	ExerciseD (derivative)	-8,621	7.20 USD	$62.1K		SEC
EVOLUTION PETROLEUM CORPListing on record	Aug 10, 2017	Exercise	6,269	8.05 USD	$50.5K		SEC
EVOLUTION PETROLEUM CORPListing on record	Aug 10, 2017	ExerciseD (derivative)	-6,269	8.05 USD	$50.5K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 12, 2016	Award	6,418	9.35 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Nov 15, 2016	Other	-650	25.00 USD	$16.3K		SEC
EVOLUTION PETROLEUM CORPListing on record	Sep 6, 2016	Exercise	8,621	5.67 USD	$48.9K		SEC
EVOLUTION PETROLEUM CORPListing on record	Sep 6, 2016	Other	-16,358	5.67 USD	$92.7K	Unusual size	SEC
EVOLUTION PETROLEUM CORPListing on record	Sep 6, 2016	ExerciseD (derivative)	-8,621	5.67 USD	$48.9K		SEC
Enservco CorpListing on record	Mar 7, 2016	Buy	25,000	0.40 USD	$10K	conv 75Cluster	SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
EVOLUTION PETROLEUM CORPListing on record	Dec 8, 2025	Award	24,214	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 9, 2024	Award	17,483	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Jun 24, 2024	Award	225,225	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Apr 8, 2024	Award	119,048	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 11, 2023	Award	16,807	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Apr 11, 2023	Award	18,405	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 12, 2022	Award	14,859	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Mar 8, 2022	Award	35,170	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 10, 2021	Award	11,386	5.27 USD	$60K		SEC
Enservco CorpListing on record	Jan 26, 2021	Award	16,043	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Enservco CorpListing on record	Jan 26, 2021	Award	29,412	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 10, 2020	Award	19,868	3.02 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 11, 2019	Award	11,279	5.32 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 7, 2018	Award	7,043	8.52 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 11, 2017	Award	8,824	6.80 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Nov 8, 2017	Exercise	8,621	7.20 USD	$62.1K		SEC
EVOLUTION PETROLEUM CORPListing on record	Nov 8, 2017	ExerciseD (derivative)	-8,621	7.20 USD	$62.1K		SEC
EVOLUTION PETROLEUM CORPListing on record	Aug 10, 2017	Exercise	6,269	8.05 USD	$50.5K		SEC
EVOLUTION PETROLEUM CORPListing on record	Aug 10, 2017	ExerciseD (derivative)	-6,269	8.05 USD	$50.5K		SEC
EVOLUTION PETROLEUM CORPListing on record	Dec 12, 2016	Award	6,418	9.35 USD	$60K		SEC
EVOLUTION PETROLEUM CORPListing on record	Nov 15, 2016	Other	-650	25.00 USD	$16.3K		SEC
EVOLUTION PETROLEUM CORPListing on record	Sep 6, 2016	Exercise	8,621	5.67 USD	$48.9K		SEC
EVOLUTION PETROLEUM CORPListing on record	Sep 6, 2016	Other	-16,358	5.67 USD	$92.7K	Unusual size	SEC
EVOLUTION PETROLEUM CORPListing on record	Sep 6, 2016	ExerciseD (derivative)	-8,621	5.67 USD	$48.9K		SEC
Enservco CorpListing on record	Mar 7, 2016	Buy	25,000	0.40 USD	$10K	conv 75Cluster	SEC