Jeffry R. Keyes

CIK: 0001557736

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)13 (81.3%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (18.8%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

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

Companies & Roles (2)

QSI

Quantum-Si Inc

Officer

CNSP

CNS Pharmaceuticals, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (16 total)

QSI
Quantum-Si Inc
Sep 22, 2026
Sale(S)
Direct
2.5K shares at avg. $0.76$2K
QSI
Quantum-Si Inc
Sep 21, 2026
Sale(S)
Direct
5.2K shares at avg. $0.76$4K
QSI
Quantum-Si Inc
Jun 23, 2026
Sale(S)
Direct
4.1K shares at avg. $0.90$4K
QSI
Quantum-Si Inc
Jun 22, 2026
Sale(S)
Direct
4.1K shares at avg. $0.96$4K
QSI
Quantum-Si Inc
Apr 21, 2026
Sale(S)
Direct
37.4K shares at avg. $0.99$37K
QSI
Quantum-Si Inc
Apr 20, 2026
Sale(S)
Direct
37.4K shares at avg. $1.01$38K
QSI
Quantum-Si Inc
Mar 23, 2026
Sale(S)
Direct
4.4K shares at avg. $0.83$4K
QSI
Quantum-Si Inc
Mar 20, 2026
Sale(S)
Direct
4.2K shares at avg. $0.85$4K
QSI
Quantum-Si Inc
Mar 12, 2026
Award(A)
Direct
652.8K shares-
QSI
Quantum-Si Inc
Dec 22, 2025
Sale(S)
Direct
8.6K shares at avg. $1.28$11K
CNSP
CNS Pharmaceuticals, Inc.
Nov 17, 2025
Award(A)
Option to purchase common stock
Direct
1.5K shares-
QSI
Quantum-Si Inc
Sep 23, 2025
Sale(S)
Direct
3.9K shares at avg. $1.64$6K
QSI
Quantum-Si Inc
Sep 22, 2025
Sale(S)
Direct
3.9K shares at avg. $1.68$7K
QSI
Quantum-Si Inc
Jun 23, 2025
Sale(S)
Direct
8.6K shares at avg. $1.61$14K
QSI
Quantum-Si Inc
Mar 21, 2025
Sale(S)
Direct
8.6K shares at avg. $1.39$12K
QSI
Quantum-Si Inc
Mar 12, 2025
Award(A)
Direct
750K shares-

		Type	Shares	Price		Ownership
Sep 22, 2026	QSI Quantum-Si Inc	Sale(S)	2,493	$0.76	$1,897	Direct
Sep 21, 2026	QSI Quantum-Si Inc	Sale(S)	5,172	$0.76	$3,909	Direct
Jun 23, 2026	QSI Quantum-Si Inc	Sale(S)	4,117	$0.90	$3,701	Direct
Jun 22, 2026	QSI Quantum-Si Inc	Sale(S)	4,116	$0.96	$3,941	Direct
Apr 21, 2026	QSI Quantum-Si Inc	Sale(S)	37,381	$0.99	$37,194	Direct
Apr 20, 2026	QSI Quantum-Si Inc	Sale(S)	37,382	$1.01	$37,621	Direct
Mar 23, 2026	QSI Quantum-Si Inc	Sale(S)	4,422	$0.83	$3,655	Direct
Mar 20, 2026	QSI Quantum-Si Inc	Sale(S)	4,233	$0.85	$3,591	Direct
Mar 12, 2026	QSI Quantum-Si Inc	Award(A)	652,803	-	$0	Direct
Dec 22, 2025	QSI Quantum-Si Inc	Sale(S)	8,627	$1.28	$11,008	Direct
Nov 17, 2025	CNSP CNS Pharmaceuticals, Inc.	Award(A) Option to purchase common stock	1,517	-	-	Direct
Sep 23, 2025	QSI Quantum-Si Inc	Sale(S)	3,873	$1.64	$6,332	Direct
Sep 22, 2025	QSI Quantum-Si Inc	Sale(S)	3,873	$1.68	$6,517	Direct
Jun 23, 2025	QSI Quantum-Si Inc	Sale(S)	8,624	$1.61	$13,918	Direct
Mar 21, 2025	QSI Quantum-Si Inc	Sale(S)	8,626	$1.39	$11,951	Direct
Mar 12, 2025	QSI Quantum-Si Inc	Award(A)	750,000	-	-	Direct

1-16 of 16 transactions

About Keyes Jeffry R.

Keyes Jeffry R. (SEC CIK 0001557736) files insider reports with the SEC as Chief Financial Officer of Quantum-Si Inc (QSI) and Director of CNS Pharmaceuticals, Inc. (CNSP).

Signal8 holds 11 ownership filings by Keyes Jeffry R., all Form 4s, filed between Mar 14, 2025 and Sep 23, 2026. Those filings report 16 transactions, from Mar 12, 2025 to Sep 22, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Keyes Jeffry R.'s filings is in BRANFORD, CT.

Recent filings by Keyes Jeffry R.

Sep 22, 2026: Open-market sale of QSI shares (Form 4, code S).
Sep 21, 2026: Open-market sale of QSI shares (Form 4, code S).
Jun 23, 2026: Open-market sale of QSI shares (Form 4, code S).
Jun 22, 2026: Open-market sale of QSI shares (Form 4, code S).
Apr 21, 2026: Open-market sale of QSI shares (Form 4, code S).

Other insiders filing for Quantum-Si Inc (QSI)

Hawkins Jeffrey Alan, President & CEO
LaPointe Christian, GC & Corp. Secretary
Vieceli John S., Chief Product Officer
Makes Brigid, Director
Fattori Ruth A, Director
Jafri Amir, Director

How to read Form 4 transaction codes