Brian F. Sullivan

CELC

Brian F. Sullivan serves as Chief Executive Officer at Celcuity Inc. (CELC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

1 trades

$1.50M

Total Sells

3 trades

$1.93M

Net Position

Net Seller

$433.1K

Companies Traded

CELC, ENTG

Active Period

Mar 2021 – Sep 2025

4 total trades

Most Recent

Sell CELC

Sep 2, 2025 · $839.9K

Brian F. Sullivan's Insider Trading at Celcuity Inc. (CELC)

Buys

1 · $1.50M

Sells

1 · $839.9K

Total Shares Bought

260,869

Total Shares Sold

104,340

CELC Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
Sep 2, 2025↗	Sell	104,340	$8.05	$839.9K	0
Dec 9, 2022↗	Buy	260,869	$5.75	$1.50M	0

Brian F. Sullivan's Insider Trading at Entegris, Inc. (ENTG)

Buys

0 · $0.00

Sells

2 · $1.09M

Total Shares Bought

Total Shares Sold

10,226

ENTG Price Chart

Loading chart...

Date	Type	Shares	Avg Price	Value	Shares After
May 7, 2021↗	Sell	2,567	$114.51	$293.9K	97,520.5
Mar 3, 2021↗	Sell	7,659	$104.34	$799.2K	102,047

Related Insiders

LOY BERTRAND

director, officer: Executive Chair

ENTGSell · Feb 25, 2026

Linda LaGorga

SVP, Chief Financial Officer

ENTGSell · Feb 20, 2026

Olivier Blachier

officer: SVP, Chief Strategy Officer

ENTGSell · Feb 20, 2026

Joseph Colella

officer: SVP and General Counsel

ENTGSell · Feb 20, 2026

Joseph Colella

SVP and General Counsel

ENTGSell · Feb 20, 2026

Olivier Blachier

SVP, Chief Strategy Officer

ENTGSell · Feb 20, 2026

Linda LaGorga

officer: SVP, Chief Financial Officer

ENTGSell · Feb 20, 2026

Clinton M. Haris

SVP & President, APS Division

ENTGSell · Feb 19, 2026

Explore More Insider Trading Data

CELC Insider Trading Activity

View all insider trades at Celcuity Inc.

Healthcare Sector Insider Trades

See insider activity across healthcare stocks

Latest Insider Buys

Most recent insider purchases across all stocks

CEO Stock Purchases

Track CEO buying activity