Matthew Sirovich — SEC Insider Profile, Roles & Companies

Insider at

04

CENTA buying April 21, 2008 PAVM selling Nov. 25, 2020

Insider transactions

05

0 buys (P) 0 sells (S) Net: $0 + 4 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

4 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 25, 2020	PAVM	S	33,203	$1.96	$65,078	1,027,744 Indirect	-3.13%	Disposed	-99.7% (price as of 2026-10-05)
Nov. 24, 2020	PAVM	S	53,036	$2.00	$106,072	1,060,947 Indirect	-4.76%	Disposed	-99.7% (price as of 2026-10-05)
Nov. 19, 2020	PAVM	S	75,211	$1.83	$137,636	1,113,983 Indirect	-6.32%	Disposed	-99.7% (price as of 2026-10-05)
Nov. 18, 2020	PAVM	S	24,789	$1.78	$44,124	1,189,194 Indirect	-2.04%	Disposed	-99.7% (price as of 2026-10-05)
May 29, 2020	PAVM	S	131,082	$1.98	$259,542	1,213,983 Indirect	-9.75%	Disposed	-99.7% (price as of 2026-10-05)
May 28, 2020	PAVM	S	69,839	$2.06	$143,868	1,345,065 Indirect	-4.94%	Disposed	-99.7% (price as of 2026-10-05)
Jan. 30, 2020	PAVM	X	1,199,383	$0.01	$11,994	1,938,297 Direct	+162.32%	Acquired	-40.9% (price as of 2026-10-05)
Jan. 30, 2020	PAVM	X	1,199,383	·	·	0 Direct	-100.00%	Disposed	(price as of 2026-10-05)
Dec. 27, 2018	PAVM	J	272,400	·	·	738,914 Direct	+58.39%	Acquired	(price as of 2026-10-05)
Dec. 27, 2018	PAVM	J	60,000	·	·	792,000 Indirect	+8.20%	Acquired	(price as of 2026-10-05)
April 21, 2008	CENTA	P	0	·	·	4,349,580 Indirect	0.00%	Acquired	(price as of 2026-10-05)
April 21, 2008	CENTA	P	0	·	·	2,295,562 Indirect	0.00%	Acquired	(price as of 2026-10-05)
April 21, 2008	CENTA	P	10,184	$4.27	$43,486	41,886 Direct	+32.12%	Acquired	902.9% (price as of 2026-10-05)
April 21, 2008	CENTA	P	27,810	$4.35	$120,974	60,310 Direct	+85.57%	Acquired	884.5% (price as of 2026-10-05)
April 18, 2008	CENTA	P	31,702	$4.21	$133,465	31,702 Direct	·	Acquired	917.2% (price as of 2026-10-05)
April 18, 2008	CENTA	P	32,500	$4.29	$139,425	32,500 Direct	·	Acquired	898.3% (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Jan. 30, 2020	PAVM	Series S Warrants (right to buy)	Common Stock (1,199,383)	$0.01	June 30, 2032	1,199,383	Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 7 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
June 25, 2018	PAVM	Common Stock	466,514	Direct
June 25, 2018	PAVM	Common Stock	1,414,904	Indirect
June 25, 2018	PAVM	Common Stock	732,000	Indirect
June 25, 2018	PAVM	Series S Warrants (right to buy)→ Common Stock (1,199,383)	1,199,383	Direct
June 25, 2018	PAVM	Series Z Warrants (right to buy)→ Common Stock (458,257)	458,257	Direct
June 25, 2018	PAVM	Series Z Warrants (right to buy)→ Common Stock (857,452)	857,452	Indirect
June 25, 2018	PAVM	Series Z Warrants (right to buy)→ Common Stock (466,000)	466,000	Indirect