Steven Alan Sonnenberg

Insider

First SEC filing: June 11, 2026 · Latest: June 11, 2026

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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 81 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

81 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 9, 2026	ST	F	433	$49.65	$21,498	24,572 Direct	-1.73%	Disposed	-15.1% (price as of 2026-08-20)
April 12, 2024	STLD	A	56	—	—	19,561 Direct	+0.29%	Acquired	(price as of 2026-08-20)
Jan. 16, 2024	STLD	A	66	—	—	19,505 Direct	+0.34%	Acquired	(price as of 2026-08-20)
Oct. 16, 2023	STLD	A	69	—	—	19,439 Direct	+0.36%	Acquired	(price as of 2026-08-20)
July 14, 2023	STLD	A	69	—	—	19,370 Direct	+0.36%	Acquired	(price as of 2026-08-20)
June 1, 2023	STLD	A	1,796	—	—	19,301 Direct	+10.26%	Acquired	(price as of 2026-08-20)
April 14, 2023	STLD	A	61	—	—	17,505 Direct	+0.35%	Acquired	(price as of 2026-08-20)
Jan. 13, 2023	STLD	A	48	—	—	17,444 Direct	+0.28%	Acquired	(price as of 2026-08-20)
Oct. 14, 2022	STLD	A	64	—	—	17,396 Direct	+0.37%	Acquired	(price as of 2026-08-20)
July 15, 2022	STLD	A	78	—	—	17,332 Direct	+0.45%	Acquired	(price as of 2026-08-20)
June 1, 2022	STLD	A	1,687	—	—	17,254 Direct	+10.84%	Acquired	(price as of 2026-08-20)
May 3, 2022	TNC	A	1,736	—	—	21,547 Direct	+8.76%	Acquired	(price as of 2026-08-20)
April 21, 2022	STLD	A	51	—	—	15,567 Direct	+0.33%	Acquired	(price as of 2026-08-20)
Jan. 14, 2022	STLD	A	55	—	—	15,516 Direct	+0.36%	Acquired	(price as of 2026-08-20)
Oct. 15, 2021	STLD	A	56	—	—	15,461 Direct	+0.36%	Acquired	(price as of 2026-08-20)
July 16, 2021	STLD	A	56	—	—	15,405 Direct	+0.36%	Acquired	(price as of 2026-08-20)
June 1, 2021	STLD	A	2,307	—	—	15,349 Direct	+17.69%	Acquired	(price as of 2026-08-20)
May 7, 2021	TNC	A	1,283	—	—	19,811 Direct	+6.92%	Acquired	(price as of 2026-08-20)
April 16, 2021	STLD	A	54	—	—	13,042 Direct	+0.42%	Acquired	(price as of 2026-08-20)
Jan. 15, 2021	STLD	A	65	—	—	12,988 Direct	+0.50%	Acquired	(price as of 2026-08-20)
Oct. 16, 2020	STLD	A	79	—	—	12,923 Direct	+0.62%	Acquired	(price as of 2026-08-20)
July 10, 2020	STLD	A	105	—	—	12,844 Direct	+0.82%	Acquired	(price as of 2026-08-20)
June 1, 2020	STLD	A	4,895	—	—	12,739 Direct	+62.40%	Acquired	(price as of 2026-08-20)
May 11, 2020	TNC	A	1,955	—	—	18,526 Direct	+11.80%	Acquired	(price as of 2026-08-20)
April 10, 2020	STLD	A	56	—	—	7,844 Direct	+0.72%	Acquired	(price as of 2026-08-20)
Jan. 10, 2020	STLD	A	38	$33.54	$1,275	7,788 Direct	+0.49%	Acquired	564.1% (price as of 2026-08-20)
Jan. 10, 2020	STLD	A	38	$33.54	$1,275	7,788 Direct	+0.49%	Acquired	564.1% (price as of 2026-08-20)
Nov. 5, 2019	TNC	M	1,750	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 5, 2019	TNC	M	2,531	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 5, 2019	TNC	S	4,281	$78.49	$336,016	16,571 Direct	-20.53%	Disposed	-14.7% (price as of 2026-08-20)
Nov. 5, 2019	TNC	M	1,750	$40.81	$71,418	20,852 Direct	+9.16%	Acquired	64.0% (price as of 2026-08-20)
Nov. 5, 2019	TNC	M	2,531	$41.97	$106,226	19,102 Direct	+15.27%	Acquired	59.5% (price as of 2026-08-20)
Oct. 11, 2019	STLD	A	64	—	—	7,750 Direct	+0.83%	Acquired	(price as of 2026-08-20)
July 12, 2019	STLD	A	64	—	—	7,686 Direct	+0.84%	Acquired	(price as of 2026-08-20)
June 3, 2019	STLD	A	5,169	—	—	7,622 Direct	+210.72%	Acquired	(price as of 2026-08-20)
May 10, 2019	TNC	M	2,256	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 10, 2019	TNC	S	2,256	$65.31	$147,339	16,571 Direct	-11.98%	Disposed	2.5% (price as of 2026-08-20)
May 10, 2019	TNC	M	2,256	$34.28	$77,336	18,827 Direct	+13.61%	Acquired	95.2% (price as of 2026-08-20)
May 8, 2019	TNC	A	1,679	—	—	16,571 Direct	+11.27%	Acquired	(price as of 2026-08-20)
April 12, 2019	STLD	A	18	—	—	2,453 Direct	+0.74%	Acquired	(price as of 2026-08-20)
Jan. 11, 2019	STLD	A	14	—	—	2,435 Direct	+0.58%	Acquired	(price as of 2026-08-20)
Nov. 14, 2018	STLD	A	2,421	—	—	2,421 Direct	—	Acquired	(price as of 2026-08-20)
April 26, 2018	TNC	A	1,353	—	—	14,891 Direct	+9.99%	Acquired	(price as of 2026-08-20)
April 27, 2017	TNC	A	3,014	—	—	3,014 Direct	—	Acquired	(price as of 2026-08-20)
April 27, 2017	TNC	A	684	—	—	13,537 Direct	+5.32%	Acquired	(price as of 2026-08-20)
March 1, 2017	TNC	M	2,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 1, 2017	TNC	M	2,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 1, 2017	TNC	M	600	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 1, 2017	TNC	S	4,600	$72.16	$331,936	12,853 Direct	-26.36%	Disposed	-7.2% (price as of 2026-08-20)
March 1, 2017	TNC	M	2,000	$19.54	$39,080	17,453 Direct	+12.94%	Acquired	242.5% (price as of 2026-08-20)
March 1, 2017	TNC	M	2,000	$35.61	$71,220	15,453 Direct	+14.87%	Acquired	88.0% (price as of 2026-08-20)
March 1, 2017	TNC	M	600	$32.17	$19,302	13,453 Direct	+4.67%	Acquired	108.1% (price as of 2026-08-20)
Feb. 28, 2017	TNC	M	1,400	—	—	600 Direct	-70.00%	Disposed	(price as of 2026-08-20)
Feb. 28, 2017	TNC	S	1,400	$72.19	$101,066	12,853 Direct	-9.82%	Disposed	-7.3% (price as of 2026-08-20)
Feb. 28, 2017	TNC	M	1,400	$32.17	$45,038	14,253 Direct	+10.89%	Acquired	108.1% (price as of 2026-08-20)
April 28, 2016	TNC	A	3,538	—	—	3,538 Direct	—	Acquired	(price as of 2026-08-20)
April 28, 2016	TNC	A	914	—	—	12,852 Direct	+7.66%	Acquired	(price as of 2026-08-20)
April 30, 2015	TNC	A	2,358	—	—	2,358 Direct	—	Acquired	(price as of 2026-08-20)
April 30, 2015	TNC	A	768	—	—	11,937 Direct	+6.88%	Acquired	(price as of 2026-08-20)
March 4, 2015	TNC	M	900	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 4, 2015	TNC	S	5	$64.32	$322	11,169 Direct	-0.04%	Disposed	4.1% (price as of 2026-08-20)
March 4, 2015	TNC	S	895	$64.31	$57,557	11,174 Direct	-7.42%	Disposed	4.1% (price as of 2026-08-20)
March 4, 2015	TNC	M	900	$26.60	$23,940	12,069 Direct	+8.06%	Acquired	151.6% (price as of 2026-08-20)
March 3, 2015	TNC	M	1,100	—	—	900 Direct	-55.00%	Disposed	(price as of 2026-08-20)
March 3, 2015	TNC	M	1,484	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 3, 2015	TNC	S	2,584	$65.08	$168,167	11,169 Direct	-18.79%	Disposed	2.8% (price as of 2026-08-20)
March 3, 2015	TNC	M	1,100	$26.60	$29,260	13,753 Direct	+8.69%	Acquired	151.6% (price as of 2026-08-20)
March 3, 2015	TNC	M	1,484	$19.75	$29,309	12,653 Direct	+13.29%	Acquired	238.9% (price as of 2026-08-20)
April 24, 2014	TNC	A	1,765	—	—	1,765 Direct	—	Acquired	(price as of 2026-08-20)
April 24, 2014	TNC	A	701	—	—	11,168 Direct	+6.70%	Acquired	(price as of 2026-08-20)
April 25, 2013	TNC	A	2,320	—	—	2,320 Direct	—	Acquired	(price as of 2026-08-20)
April 25, 2013	TNC	A	966	—	—	10,466 Direct	+10.17%	Acquired	(price as of 2026-08-20)
April 26, 2012	TNC	A	2,531	—	—	2,531 Direct	—	Acquired	(price as of 2026-08-20)
April 26, 2012	TNC	A	1,072	—	—	9,499 Direct	+12.72%	Acquired	(price as of 2026-08-20)
April 28, 2011	TNC	A	1,750	—	—	1,750 Direct	—	Acquired	(price as of 2026-08-20)
April 28, 2011	TNC	A	735	—	—	8,426 Direct	+9.56%	Acquired	(price as of 2026-08-20)
April 28, 2010	TNC	A	2,256	—	—	2,256 Direct	—	Acquired	(price as of 2026-08-20)
April 28, 2010	TNC	A	875	—	—	7,749 Direct	+12.73%	Acquired	(price as of 2026-08-20)
May 12, 2009	TNC	A	2,000	—	—	2,000 Direct	—	Acquired	(price as of 2026-08-20)
May 12, 2009	TNC	A	1,500	$19.22	$28,830	6,874 Direct	+27.91%	Acquired	248.2% (price as of 2026-08-20)
April 29, 2008	TNC	A	2,000	—	—	2,000 Direct	—	Acquired	(price as of 2026-08-20)
April 29, 2008	TNC	A	1,500	$33.78	$50,670	5,374 Direct	+38.72%	Acquired	98.1% (price as of 2026-08-20)
May 4, 2007	TNC	A	2,000	—	—	2,000 Direct	—	Acquired	(price as of 2026-08-20)
May 4, 2007	TNC	A	1,500	$32.17	$48,255	3,774 Direct	+65.96%	Acquired	108.1% (price as of 2026-08-20)
May 4, 2006	TNC	A	1,000	$53.20	$53,200	1,000 Direct	—	Acquired	151.6% (price as of 2026-08-20)
May 4, 2006	TNC	A	750	$53.20	$39,900	1,121 Direct	+202.16%	Acquired	151.6% (price as of 2026-08-20)
Aug. 11, 2005	TNC	A	742	$39.13	$29,034	742 Direct	—	Acquired	242.1% (price as of 2026-08-20)
Aug. 11, 2005	TNC	A	371	$39.13	$14,517	371 Direct	—	Acquired	242.1% (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
Nov. 5, 2019	TNC	Stock Option (right to buy)	Common Stock (1,750)	$40.81	April 28, 2021	1,750	Disposed
Nov. 5, 2019	TNC	Stock Option (right to buy)	Common Stock (2,531)	$41.97	April 26, 2022	2,531	Disposed
May 10, 2019	TNC	Stock Option (right to buy)	Common Stock (2,256)	$34.28	April 28, 2020	2,256	Disposed
April 27, 2017	TNC	Stock Option (right to buy)	Common Stock (3,014)	$73.05	April 27, 2027	3,014	Acquired
March 1, 2017	TNC	Stock Option (right to buy)	Common Stock (2,000)	$19.54	May 12, 2019	2,000	Disposed
March 1, 2017	TNC	Stock Option (right to buy)	Common Stock (2,000)	$35.61	April 29, 2018	2,000	Disposed
March 1, 2017	TNC	Stock Option (right to buy)	Common Stock (600)	$32.17	May 4, 2017	600	Disposed
Feb. 28, 2017	TNC	Stock Option (right to buy)	Common Stock (1,400)	$32.17	May 4, 2017	1,400	Disposed
April 28, 2016	TNC	Stock Option (rightt to buy)	Common Stock (3,538)	$54.70	April 28, 2026	3,538	Acquired
April 30, 2015	TNC	Stock Option (right to buy)	Common Stock (2,358)	$65.12	April 30, 2025	2,358	Acquired
March 4, 2015	TNC	Stock Option (right to buy)	Common Stock (900)	$26.60	May 4, 2016	900	Disposed
March 3, 2015	TNC	Stock Option (right to buy)	Common Stock (1,100)	$26.60	May 4, 2016	1,100	Disposed
March 3, 2015	TNC	Stock Option (right to buy)	Common Stock (1,484)	$19.75	Aug. 11, 2015	1,484	Disposed
April 24, 2014	TNC	Stock Option (right to buy)	Common Stock (1,765)	$64.20	April 24, 2024	1,765	Acquired
April 25, 2013	TNC	Stock Option (right to buy)	Common Stock (2,320)	$46.59	April 25, 2023	2,320	Acquired
April 26, 2012	TNC	Stock Option (right to buy)	Common Stock (2,531)	$41.97	April 26, 2022	2,531	Acquired
April 28, 2011	TNC	Stock Option (right to buy)	Common Stock (1,750)	$40.81	April 28, 2021	1,750	Acquired
April 28, 2010	TNC	Stock Option (Right to Buy)	Common Stock (2,256)	$34.28	April 28, 2020	2,256	Acquired
May 12, 2009	TNC	Stock Option (right to buy)	Common Stock (2,000)	$19.22	May 12, 2019	2,000	Acquired
April 29, 2008	TNC	Stock Option (right to buy)	Common Stock (2,000)	$33.78	April 29, 2018	2,000	Acquired
May 4, 2007	TNC	Stock Option (Right to buy)	Common Stock (2,000)	$32.17	May 4, 2017	2,000	Acquired
May 4, 2006	TNC	Stock Option (right to buy)	Common Stock (1,000)	$53.20	May 4, 2016	1,000	Acquired
Aug. 11, 2005	TNC	Common Stock	Common Stock (742)	$39.13	Aug. 11, 2015	742	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
April 2, 2020	ST	No securities beneficially owned	0	Direct
Oct. 23, 2018	STLD	Common Stock	0	Direct