Catherine Coste

CIK: 0001821432

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (75.0%)

Compensation grants

Other (G, F, J, C, D, …)1 (25.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

BLFS

BIOLIFE SOLUTIONS INC

Director

BMRA

BIOMERICA INC

Director

Discretionary Trading P&L

Holdings

Transaction History (4 total)

BLFS
BIOLIFE SOLUTIONS INC
Oct 6, 2026
Disposition(D)
Direct
13.9K shares-
BLFS
BIOLIFE SOLUTIONS INC
Feb 24, 2026
Award(A)
Direct
8.2K shares-
BLFS
BIOLIFE SOLUTIONS INC
Mar 18, 2025
Award(A)
Direct
5.7K shares-
BMRA
BIOMERICA INC
Dec 13, 2024
Award(A)
Direct
85K shares at avg. $0.31$26K

		Type	Shares	Price		Ownership
Oct 6, 2026	BLFS BIOLIFE SOLUTIONS INC	Disposition(D)	13,871	-	$0	Direct
Feb 24, 2026	BLFS BIOLIFE SOLUTIONS INC	Award(A)	8,170	-	$0	Direct
Mar 18, 2025	BLFS BIOLIFE SOLUTIONS INC	Award(A)	5,701	-	-	Direct
Dec 13, 2024	BMRA BIOMERICA INC	Award(A)	85,000	$0.31	$26,350	Direct

1-4 of 4 transactions

About Coste Catherine

Coste Catherine (SEC CIK 0001821432) files insider reports with the SEC as Director of BIOLIFE SOLUTIONS INC (BLFS) and Director of BIOMERICA INC (BMRA).

Signal8 holds 5 ownership filings by Coste Catherine (1 Form 3, 4 Form 4), filed between Dec 17, 2024 and Oct 8, 2026. Those filings report 4 transactions, from Dec 13, 2024 to Oct 6, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Coste Catherine's filings is in BOTHELL, WA.

Recent filings by Coste Catherine

Oct 6, 2026: Disposition to issuer transaction of BLFS shares (Form 4, code D).
Feb 24, 2026: Grant or award of BLFS shares (Form 4, code A).
Mar 18, 2025: Grant or award of BLFS shares (Form 4, code A).
Dec 13, 2024: Grant or award of BMRA shares (Form 4, code A).