Tom Gwydir

Insider

First SEC filing: Aug. 19, 2021 · Latest: Aug. 19, 2021

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 7 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

7 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 5, 2023	NEPH	A	27,613	—	—	43,226 Direct	+176.86%	Acquired	(price as of 2026-08-20)
Jan. 5, 2023	NEPH	A	7,080	—	—	7,080 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 18, 2021	NEPH	P	5,000	$7.64	$38,200	11,031 Direct	+82.90%	Acquired	-38.2% (price as of 2026-08-20)
Jan. 6, 2021	NEPH	A	6,850	—	—	6,850 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 6, 2021	NEPH	A	3,666	—	—	6,031 Direct	+155.01%	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	NEPH	A	5,568	—	—	5,568 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	NEPH	A	2,365	—	—	2,365 Direct	—	Acquired	(price as of 2026-08-20)
April 29, 2019	NEPH	A	86,641	—	—	86,641 Direct	—	Acquired	(price as of 2026-08-20)

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. 5, 2023	NEPH	Stock Option (right to buy)	Common Stock (7,080)	$1.07	Jan. 5, 2023	7,080	Acquired
Jan. 6, 2021	NEPH	Stock Option (right to buy)	Common Stock (6,850)	$8.06	Jan. 6, 2031	6,850	Acquired
Dec. 16, 2019	NEPH	Stock Option (right to buy)	Common Stock (5,568)	$8.57	Dec. 16, 2029	5,568	Acquired
April 29, 2019	NEPH	Stock Option (right to buy)	Common Stock (86,641)	$0.59	April 29, 2029	86,641	Acquired

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