Southworth Michael Christopher

Director at Converted Organics Inc. · on record since Apr 8, 2014
Director at GRID DYNAMICS HOLDINGS, INC. · on record since Mar 16, 2020

Insider trading activity of Southworth Michael Christopher

Transactions on record: 50; since Jul 11, 2014

Open-market buys: 0

Open-market sells: 0

Companies traded: 2; last filing Dec 29, 2025

Figures computed from official regulatory filings — methodology.

Companies where Southworth Michael Christopher has traded

GRID DYNAMICS HOLDINGS, INC.11 tx · $75K · Dec 29, 2025
Converted Organics Inc.39 tx · $106.1K · Jul 27, 2020

Track record of Southworth Michael Christopher

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

Transaction history of Southworth Michael Christopher

Co-insiders of Southworth Michael Christopher

BENHAMOU ERICConverted Organics Inc. +1
a16z Seed-III, LLCConverted Organics Inc.
AH Capital Management, L.L.C.Converted Organics Inc.
AH Equity Partners III, L.L.C.Converted Organics Inc.
AH Equity Partners III (Parallel), L.L.C.Converted Organics Inc.
AH Equity Partners LSV I, L.L.C.Converted Organics Inc.
AH Parallel Fund III-A, L.P.Converted Organics Inc.

This page republishes public regulatory disclosures. Concerned by this data? Exercise your right to object →

Company	Filed	Type	Qty	Price	Value · USD	Src
GRID DYNAMICS HOLDINGS, INC.	Dec 29, 2025	Award	12,500	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 29, 2025	Award	6,521	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 26, 2024	Award	3,672	20.42 USD	$75K	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 26, 2023	Award	5,559	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 27, 2022	Award	6,811	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 22, 2021	Award	2,050	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Mar 4, 2021	Award	960	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 17, 2020	Award	6,762	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Nov 4, 2020	Award	1,905	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Sep 21, 2020	Award	6,405	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Aug 5, 2020	Award	2,186	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 27, 2020	Other	-68,443	1.55 USD	$106.1K	SEC
Converted Organics Inc.	Jul 13, 2020	Exercise	3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 13, 2020	ExerciseD	-3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 13, 2020	ExerciseD	-3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 13, 2020	Exercise	3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Jan 13, 2020	ExerciseD	-3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Jan 13, 2020	Exercise	3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Oct 15, 2019	Exercise	3,670	0.00 USD	$0	SEC
Converted Organics Inc.	Oct 15, 2019	ExerciseD	-3,670	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 12, 2019	Exercise	3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 12, 2019	ExerciseD	-3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 12, 2019	Exercise	3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 12, 2019	ExerciseD	-3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Jan 14, 2019	Exercise	3,671	0.00 USD	$0	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
GRID DYNAMICS HOLDINGS, INC.	Dec 29, 2025	Award	12,500	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 29, 2025	Award	6,521	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 26, 2024	Award	3,672	20.42 USD	$75K	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 26, 2023	Award	5,559	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 27, 2022	Award	6,811	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 22, 2021	Award	2,050	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Mar 4, 2021	Award	960	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Dec 17, 2020	Award	6,762	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Nov 4, 2020	Award	1,905	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Sep 21, 2020	Award	6,405	0.00 USD	$0	SEC
GRID DYNAMICS HOLDINGS, INC.	Aug 5, 2020	Award	2,186	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 27, 2020	Other	-68,443	1.55 USD	$106.1K	SEC
Converted Organics Inc.	Jul 13, 2020	Exercise	3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 13, 2020	ExerciseD	-3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 13, 2020	ExerciseD	-3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 13, 2020	Exercise	3,672	0.00 USD	$0	SEC
Converted Organics Inc.	Jan 13, 2020	ExerciseD	-3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Jan 13, 2020	Exercise	3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Oct 15, 2019	Exercise	3,670	0.00 USD	$0	SEC
Converted Organics Inc.	Oct 15, 2019	ExerciseD	-3,670	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 12, 2019	Exercise	3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Jul 12, 2019	ExerciseD	-3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 12, 2019	Exercise	3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Apr 12, 2019	ExerciseD	-3,671	0.00 USD	$0	SEC
Converted Organics Inc.	Jan 14, 2019	Exercise	3,671	0.00 USD	$0	SEC