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Who

Nelson Obus

Director

Company insider

Files Form 4 as: Director and 10% owner, Lifecore Biomedical; 10% owner, Quest Resource Holding; Director and 10% owner, Williams Industrial Services Group; 10% owner, Nature's Sunshine Products; 10% owner, MusclePharm; Director and 10% owner, Jason Industries; 10% owner, DLH Holdings; 10% owner, Summer Infant.

Every Form 4 they filed

In numbers

Trades disclosed
463
Buys
171
Sells
13
Bought
$553.6M
Sold
$24.5M
Companies
22
Companies where not an officer
22
First trade
1 Jan 2006
Last trade
4 Jun 2026
Last filed
5 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
LFCR Lifecore BiomedicalDirector, 10% owner · Biotechnology · last 4 Jun 202623 buys · 0 sells
QRHC Quest Resource Holding10% owner · Waste & Environmental · last 3 Oct 20236 buys · 2 sells
Williams Industrial Services GroupDirector, 10% owner · last 2 Feb 202345 buys · 0 sells
NATR Nature's Sunshine Products10% owner · Biotechnology · last 24 Aug 202218 buys · 0 sells
MusclePharm10% owner · last 20 Aug 20192 buys · 0 sells
Jason IndustriesDirector, 10% owner · last 14 Aug 20198 buys · 0 sells
DLHC DLH Holdings10% owner · Professional Services · last 15 Mar 20191 buy · 2 sells
Summer Infant10% owner · last 27 Feb 201918 buys · 1 sell
Layne Christensen CoDirector, 10% owner · last 14 Jun 201823 buys · 3 sells
Trans World10% owner · last 30 Apr 20181 buy · 0 sells
S&W Seed Co10% owner · last 23 Mar 20179 buys · 0 sells
Breeze-EasternDirector, 10% owner · last 4 Jan 20160 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
4 Jun 2026filed 5 Jun 2026LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code A—25,907filing
4 Jun 2026filed 5 Jun 2026LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code A—25,907filing
15 Jul 2025filed 17 Jul 2025LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code A—19,506filing
8 Jul 2024filed 10 Jul 2024LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code A—30,000filing
1 Feb 2024filed 2 Feb 2024LFCR Lifecore Biomedicaloption or derivative · BiotechnologySEC FORM 4 Code M—9,554 at $0.00filing
1 Feb 2024filed 2 Feb 2024LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code M—9,554filing
3 Oct 2023filed 4 Oct 2023QRHC Quest Resource HoldingWaste & EnvironmentalSEC FORM 4 Bought$1,363188 at $7.25filing
2 Oct 2023filed 4 Oct 2023QRHC Quest Resource HoldingWaste & EnvironmentalSEC FORM 4 Bought$30K4,173 at $7.24filing
2 Oct 2023filed 4 Oct 2023QRHC Quest Resource HoldingWaste & EnvironmentalSEC FORM 4 Bought$32K4,381 at $7.24filing
8 Sep 2023filed 11 Sep 2023QRHC Quest Resource HoldingWaste & EnvironmentalSEC FORM 4 Bought$10K1,410 at $7.24filing
7 Sep 2023filed 11 Sep 2023QRHC Quest Resource HoldingWaste & EnvironmentalSEC FORM 4 Bought$2,001276 at $7.25filing
1 Jun 2023filed 5 Jun 2023LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code A—18,182filing
31 May 2023filed 1 Jun 2023LFCR Lifecore Biomedicaloption or derivative · BiotechnologySEC FORM 4 Code M—9,474 at $0.00filing
31 May 2023filed 1 Jun 2023LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Code M—9,474filing
2 Feb 2023filed 3 Feb 2023Williams Industrial Services GroupSEC FORM 4 Code A—85,821 at $0.00filing
1 Feb 2023filed 2 Feb 2023LFCR Lifecore Biomedicaloption or derivative · BiotechnologySEC FORM 4 Code A—9,554filing
24 Oct 2022filed 26 Oct 2022LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Bought$833K103,000 at $8.09filing
24 Oct 2022filed 26 Oct 2022LFCR Lifecore BiomedicalBiotechnologySEC FORM 4 Bought$1.2M147,000 at $8.09filing
1 Sep 2022filed 2 Sep 2022Williams Industrial Services GroupSEC FORM 4 Bought$1,7921,086 at $1.65filing
1 Sep 2022filed 2 Sep 2022Williams Industrial Services GroupSEC FORM 4 Bought$1,8791,139 at $1.65filing

Sectors

Health Care41
Industrials11
Consumer Discretionary6
Technology2
Not placed124

Buys in green, sells in red, by the company’s sector.

Related people

Christopher S. KiperDirector and 10% owner · Director and 10% owner at Lifecore Biomedical, Inc. \de\, filing Form 4 there in the last year
Jason AryehDirector · Director at Lifecore Biomedical, Inc. \de\, filing Form 4 there in the last year
Matthew E. KorenbergCFO, Treasurer · Director at Lifecore Biomedical, Inc. \de\, filing Form 4 there in the last year
Humberto Calheiros AntunesDirector · Director at Lifecore Biomedical, Inc. \de\, filing Form 4 there in the last year
Lovas Katrina HoudeDirector · Director at Lifecore Biomedical, Inc. \de\, filing Form 4 there in the last year
Mink Brook Asset Management LLC10% owner · Also traded DLHC in the last 90 days
John B. WoodChairman and CEO · Also traded TLS in the last 90 days
Gary Mark BendzaEVP, CFO · Also traded TLS in the last 90 days