David L Swartz

Insider

First SEC filing: March 4, 2004 · Latest: Jan. 3, 2014

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

RDNT selling June 18, 2026

Insider transactions

0 buys (P) 1 sells (S) Net: $-145,449 + 39 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

39 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 18, 2026	RDNT	S	2,699	$53.89	$145,449	177,013 Direct	-1.50%	Disposed	41.2% (price as of 2026-08-20)
June 2, 2026	RDNT	A	2,946	—	—	179,712 Direct	+1.67%	Acquired	(price as of 2026-08-20)
June 2, 2016	RDNT	A	22,935	—	—	97,935 Direct	-18.97%	Disposed	(price as of 2026-08-20)
Jan. 5, 2016	RDNT	X	10,000	—	—	75,000 Direct	-11.76%	Disposed	(price as of 2026-08-20)
Jan. 5, 2016	RDNT	F	5,863	—	—	292,683 Direct	-1.96%	Disposed	(price as of 2026-08-20)
Jan. 5, 2016	RDNT	M	10,000	—	—	298,546 Direct	+3.47%	Acquired	(price as of 2026-08-20)
Jan. 4, 2016	RDNT	A	10,297	—	—	288,546 Direct	+3.70%	Acquired	(price as of 2026-08-20)
Jan. 2, 2016	RDNT	X	25,000	—	—	85,000 Direct	-22.73%	Disposed	(price as of 2026-08-20)
Jan. 2, 2016	RDNT	F	11,974	—	—	278,249 Direct	-4.13%	Disposed	(price as of 2026-08-20)
Jan. 2, 2016	RDNT	M	25,000	—	—	290,223 Direct	+9.43%	Acquired	(price as of 2026-08-20)
Jan. 2, 2015	RDNT	X	25,000	—	—	110,000 Direct	-18.52%	Disposed	(price as of 2026-08-20)
Jan. 2, 2015	RDNT	A	14,434	—	—	265,223 Direct	+5.76%	Acquired	(price as of 2026-08-20)
Jan. 2, 2015	RDNT	F	6,120	—	—	250,789 Direct	-2.38%	Disposed	(price as of 2026-08-20)
Jan. 2, 2015	RDNT	M	25,000	—	—	256,909 Direct	+10.78%	Acquired	(price as of 2026-08-20)
May 23, 2014	RDNT	X	31,250	—	—	135,000 Direct	-18.80%	Disposed	(price as of 2026-08-20)
May 23, 2014	RDNT	F	12,058	—	—	231,909 Direct	-4.94%	Disposed	(price as of 2026-08-20)
May 23, 2014	RDNT	M	31,250	—	—	243,967 Direct	+14.69%	Acquired	(price as of 2026-08-20)
May 23, 2014	RDNT	X	31,250	—	—	135,000 Direct	-18.80%	Disposed	(price as of 2026-08-20)
May 23, 2014	RDNT	F	12,058	—	—	263,159 Direct	-4.38%	Disposed	(price as of 2026-08-20)
May 23, 2014	RDNT	M	31,250	—	—	243,967 Direct	+14.69%	Acquired	(price as of 2026-08-20)
Jan. 2, 2014	RDNT	A	77,160	—	—	212,717 Direct	-26.62%	Disposed	(price as of 2026-08-20)
Jan. 2, 2014	RDNT	A	77,160	—	—	222,717 Direct	-25.73%	Disposed	(price as of 2026-08-20)
Nov. 19, 2013	RDNT	J	39,443	—	—	145,557 Direct	-21.32%	Disposed	(price as of 2026-08-20)
Dec. 20, 2012	RDNT	A	50,000	—	—	185,000 Direct	+37.04%	Acquired	(price as of 2026-08-20)
Jan. 3, 2012	RDNT	A	50,000	—	—	135,000 Direct	+58.82%	Acquired	(price as of 2026-08-20)
March 25, 2011	RDNT	J	10,000	—	—	166,250 Direct	+6.40%	Acquired	(price as of 2026-08-20)
Jan. 3, 2011	RDNT	J	25,000	—	—	156,250 Direct	+19.05%	Acquired	(price as of 2026-08-20)
Nov. 26, 2010	RDNT	X	25,000	—	—	131,250 Direct	-16.00%	Disposed	(price as of 2026-08-20)
Nov. 26, 2010	RDNT	M	25,000	$1.00	$25,000	85,000 Direct	+41.67%	Acquired	7511.0% (price as of 2026-08-20)
Jan. 25, 2010	RDNT	X	25,000	—	—	156,250 Direct	-13.79%	Disposed	(price as of 2026-08-20)
Jan. 25, 2010	RDNT	M	25,000	$0.80	$20,000	60,000 Direct	+71.43%	Acquired	9413.8% (price as of 2026-08-20)
Jan. 4, 2010	RDNT	J	25,000	—	—	181,250 Direct	+16.00%	Acquired	(price as of 2026-08-20)
June 15, 2009	RDNT	J	31,250	—	—	156,250 Direct	+25.00%	Acquired	(price as of 2026-08-20)
Feb. 2, 2009	RDNT	J	25,000	—	—	125,000 Direct	+25.00%	Acquired	(price as of 2026-08-20)
Nov. 14, 2008	RDNT	X	25,000	—	—	100,000 Direct	-20.00%	Disposed	(price as of 2026-08-20)
Nov. 14, 2008	RDNT	M	25,000	$1.20	$30,000	25,000 Direct	—	Acquired	6242.5% (price as of 2026-08-20)
Jan. 2, 2008	RDNT	J	25,000	—	—	125,000 Direct	+25.00%	Acquired	(price as of 2026-08-20)
Feb. 27, 2007	RDNT	J	25,000	—	—	100,000 Direct	+33.33%	Acquired	(price as of 2026-08-20)
Dec. 28, 2006	RDNT	P	10,000	$4.59	$45,900	10,000 Direct	—	Acquired	1558.2% (price as of 2026-08-20)
March 28, 2006	RDNT	J	50,000	—	—	150,000 Direct	+50.00%	Acquired	(price as of 2026-08-20)
July 8, 2005	RDNT	J	50,000	—	—	100,000 Direct	+100.00%	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.

Derivative holdings (Form 4 Table II)

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 2, 2016	RDNT	Restricted Stock Units	Common Stock (22,935)	—	—	22,935	Disposed
Jan. 5, 2016	RDNT	Common Stock	Common Stock (10,000)	$3.60	March 25, 2016	10,000	Disposed
Jan. 2, 2016	RDNT	Stock Option	Common Stock (25,000)	$2.96	Jan. 2, 2016	25,000	Disposed
Jan. 2, 2015	RDNT	Stock Option	Common Stock (25,000)	$2.12	Jan. 4, 2015	25,000	Disposed
May 23, 2014	RDNT	Stock Option	Common Stock (31,250)	$2.40	June 15, 2014	31,250	Disposed
May 23, 2014	RDNT	Stock Option	Common Stock (31,250)	$2.40	June 15, 2014	31,250	Disposed
March 25, 2011	RDNT	Stock Option	Common Stock (10,000)	$3.60	March 25, 2016	10,000	Acquired
Jan. 3, 2011	RDNT	Stock Option	Common Stock (25,000)	$2.96	Jan. 3, 2016	25,000	Acquired
Nov. 26, 2010	RDNT	Stock Purchase Warrant	Common Stock (25,000)	$1.00	March 28, 2011	25,000	Disposed
Jan. 25, 2010	RDNT	Stock Purchase Warrant	Common Stock (25,000)	$0.80	July 8, 2010	25,000	Disposed
Jan. 4, 2010	RDNT	Stock Option	Common Stock (25,000)	$2.12	Jan. 4, 2015	25,000	Acquired
June 15, 2009	RDNT	Stock Option	Common Stock (31,250)	$2.40	June 15, 2014	31,250	Acquired
Feb. 2, 2009	RDNT	Stock Option	Common Stock (25,000)	$3.18	Feb. 2, 2014	25,000	Acquired
Nov. 14, 2008	RDNT	Stock Purchase Warrant	Common Stock (25,000)	$1.20	March 1, 2009	25,000	Disposed
Jan. 2, 2008	RDNT	Stock Option	Common Stock (25,000)	$9.23	Jan. 2, 2013	25,000	Acquired
Feb. 27, 2007	RDNT	Stock Purchase Warrant	Common Stock (25,000)	$5.99	Feb. 27, 2012	25,000	Acquired
March 28, 2006	RDNT	Stock Purchase Warrant	Common Stock (50,000)	$0.50	March 28, 2011	50,000	Acquired
July 8, 2005	RDNT	Stock Purchase Warrant	Common Stock (50,000)	$0.40	July 8, 2010	50,000	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
March 4, 2004	RDNT	Warrant→ Common Stock, $.01 par value (50,000)	50,000	Direct