Matthew Paul Duffy

CIK: 0002077387

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)5 (50.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)2 (20.0%)

Compensation grants

Other (G, F, J, C, D, …)3 (30.0%)

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

Companies & Roles (1)

Neptune Insurance Holdings Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (10 total)

NP
Neptune Insurance Holdings Inc.
Oct 8, 2026
Sale(S)
Direct
53.6K shares at avg. $27.88$1.5M
NP
Neptune Insurance Holdings Inc.
Oct 8, 2026
Sale(S)
Direct
30.8K shares at avg. $28.47$877K
NP
Neptune Insurance Holdings Inc.
Oct 6, 2026
Sale(S)
Direct
41.4K shares at avg. $27.15$1.1M
NP
Neptune Insurance Holdings Inc.
Oct 2, 2026
Sale(S)
Direct
38.5K shares at avg. $27.65$1.1M
NP
Neptune Insurance Holdings Inc.
Oct 2, 2026
Sale(S)
Direct
1.2K shares at avg. $28.48$34K
NP
Neptune Insurance Holdings Inc.
Sep 30, 2026
Tax Payment(F)
Direct
98.4K shares at avg. $27.35$2.7M
NP
Neptune Insurance Holdings Inc.
Sep 30, 2026
Award(A)
Direct
191.9K shares-
NP
Neptune Insurance Holdings Inc.
Oct 2, 2025
Other(J)
Direct
1.2M shares-
NP
Neptune Insurance Holdings Inc.
Oct 2, 2025
Other(J)
Direct
1.2M shares-
NP
Neptune Insurance Holdings Inc.
Oct 2, 2025
Award(A)
Direct
791.9K shares-

		Type	Shares	Price		Ownership
Oct 8, 2026	NP Neptune Insurance Holdings Inc.	Sale(S)	53,639	$27.88	$1,495,589	Direct
Oct 8, 2026	NP Neptune Insurance Holdings Inc.	Sale(S)	30,802	$28.47	$876,841	Direct
Oct 6, 2026	NP Neptune Insurance Holdings Inc.	Sale(S)	41,392	$27.15	$1,123,967	Direct
Oct 2, 2026	NP Neptune Insurance Holdings Inc.	Sale(S)	38,537	$27.65	$1,065,394	Direct
Oct 2, 2026	NP Neptune Insurance Holdings Inc.	Sale(S)	1,200	$28.48	$34,176	Direct
Sep 30, 2026	NP Neptune Insurance Holdings Inc.	Tax Payment(F)	98,381	$27.35	$2,690,720	Direct
Sep 30, 2026	NP Neptune Insurance Holdings Inc.	Award(A)	191,896	-	$0	Direct
Oct 2, 2025	NP Neptune Insurance Holdings Inc.	Other(J)	1,160,000	-	-	Direct
Oct 2, 2025	NP Neptune Insurance Holdings Inc.	Other(J)	1,160,000	-	-	Direct
Oct 2, 2025	NP Neptune Insurance Holdings Inc.	Award(A)	791,853	-	-	Direct

1-10 of 10 transactions

About Duffy Matthew Paul

Duffy Matthew Paul (SEC CIK 0002077387) files insider reports with the SEC as President & Chief Risk Officer of Neptune Insurance Holdings Inc. (NP).

Signal8 holds 6 ownership filings by Duffy Matthew Paul (1 Form 3, 5 Form 4), filed between Sep 30, 2025 and Oct 9, 2026. Those filings report 10 transactions, from Oct 2, 2025 to Oct 8, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Duffy Matthew Paul's filings is in SAINT PETERSBURG, FL.

Recent filings by Duffy Matthew Paul

Oct 8, 2026: Open-market sales of NP shares (2 lines, Form 4, code S).
Oct 6, 2026: Open-market sale of NP shares (Form 4, code S).
Oct 2, 2026: Open-market sales of NP shares (2 lines, Form 4, code S).
Sep 30, 2026: Tax withholding of NP shares (Form 4, code F).
Sep 30, 2026: Grant or award of NP shares (Form 4, code A).

Other insiders filing for Neptune Insurance Holdings Inc. (NP)

Burgess Trevor R, Chief Executive Officer
Steiner James, Chief Financial Officer
Carlon Jonathan Winant, Director
Noble David Stanley Edward, Director
Melej Cristian A, Director
BSIV Hold 101, LP, 10% Owner

How to read Form 4 transaction codes