Malcolm C Persen

Insider

First SEC filing: Jan. 8, 2021 · Latest: Jan. 8, 2021

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 14 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

14 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 6, 2021	NEPH	A	6,850	—	—	6,850 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 6, 2021	NEPH	A	5,921	—	—	48,774 Direct	+13.82%	Acquired	(price as of 2026-08-19)
May 11, 2020	NEPH	X	1,732	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-19)
May 11, 2020	NEPH	X	1,732	$7.65	$13,250	5,194 Indirect	+50.03%	Acquired	-39.2% (price as of 2026-08-19)
Dec. 16, 2019	NEPH	A	5,568	—	—	5,568 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 16, 2019	NEPH	A	5,437	—	—	42,853 Direct	+14.53%	Acquired	(price as of 2026-08-19)
Dec. 19, 2018	NEPH	A	46,457	—	—	46,457 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 14, 2018	NEPH	A	71,509	—	—	336,750 Direct	+26.96%	Acquired	(price as of 2026-08-19)
Dec. 20, 2017	NEPH	A	40,284	—	—	40,284 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 20, 2017	NEPH	A	113,636	—	—	265,241 Direct	+74.96%	Acquired	(price as of 2026-08-19)
Aug. 24, 2016	NEPH	A	33,880	—	—	33,880 Direct	—	Acquired	(price as of 2026-08-19)
Aug. 24, 2016	NEPH	A	113,636	—	—	151,605 Direct	+299.29%	Acquired	(price as of 2026-08-19)
Sept. 9, 2015	NEPH	A	16,951	—	—	16,951 Direct	—	Acquired	(price as of 2026-08-19)
May 12, 2015	NEPH	P	15,580	—	—	15,580 Indirect	—	Acquired	(price as of 2026-08-19)
May 12, 2015	NEPH	P	31,160	—	—	31,160 Indirect	—	Acquired	(price as of 2026-08-19)
May 7, 2015	NEPH	A	56,981	—	—	56,981 Direct	—	Acquired	(price as of 2026-08-19)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Jan. 6, 2021	NEPH	Stock Option (Right to Buy)	Common Stock (6,850)	$8.06	Jan. 6, 2031	6,850	Acquired
May 11, 2020	NEPH	Warrants (right to buy)	Common Stock (1,732)	$7.65	May 18, 2020	1,732	Disposed
Dec. 16, 2019	NEPH	Stock Option (Right to Buy)	Common Stock (5,568)	$8.57	Dec. 16, 2029	5,568	Acquired
Dec. 19, 2018	NEPH	Stock Option (Right to Buy)	Common Stock (46,457)	$0.65	Dec. 19, 2028	46,457	Acquired
Dec. 20, 2017	NEPH	Stock Option (Right to Buy)	Common Stock (40,284)	$0.50	Dec. 20, 2027	40,284	Acquired
Aug. 24, 2016	NEPH	Stock Option (Right to Buy)	Common Stock (33,880)	$0.40	Aug. 24, 2026	33,880	Acquired
May 12, 2015	NEPH	Warrants (right to buy)	Common Stock (15,580)	$0.85	May 18, 2020	15,580	Acquired
May 7, 2015	NEPH	Stock Option (Right to Buy)	Common Stock (56,981)	$0.79	May 7, 2025	56,981	Acquired

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