Alexander Karsner

Insider

First SEC filing: Jan. 5, 2026 · Latest: Jan. 5, 2026

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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 + 26 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

26 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 2, 2026	XOM	A	2,500	—	—	37,500 Direct	+7.14%	Acquired
March 6, 2025	AMAT	A	1,583	—	—	16,108 Direct	+10.90%	Acquired	(price as of 2026-08-20)
Jan. 2, 2025	XOM	A	2,500	—	—	35,000 Direct	+7.69%	Acquired
March 7, 2024	AMAT	A	1,128	—	—	14,525 Direct	+8.42%	Acquired	(price as of 2026-08-20)
Jan. 2, 2024	XOM	A	2,500	—	—	32,500 Direct	+8.33%	Acquired
March 9, 2023	AMAT	A	2,050	—	—	13,397 Direct	+18.07%	Acquired	(price as of 2026-08-20)
Jan. 3, 2023	XOM	A	2,500	—	—	30,000 Direct	+9.09%	Acquired
March 10, 2022	AMAT	A	1,920	—	—	11,347 Direct	+20.37%	Acquired	(price as of 2026-08-20)
June 21, 2021	XOM	A	8,000	—	—	25,000 Direct	+47.06%	Acquired
March 11, 2021	AMAT	A	1,919	—	—	9,427 Direct	+25.56%	Acquired	(price as of 2026-08-20)
June 22, 2020	AMAT	S	3,467	$60.50	$209,754	7,508 Direct	-31.59%	Disposed	716.6% (price as of 2026-08-20)
June 18, 2020	AMAT	S	20,027	$60.43	$1,210,232	10,975 Direct	-64.60%	Disposed	717.6% (price as of 2026-08-20)
March 12, 2020	AMAT	A	4,987	—	—	31,002 Direct	+19.17%	Acquired	(price as of 2026-08-20)
March 7, 2019	AMAT	A	5,988	—	—	26,015 Direct	+29.90%	Acquired	(price as of 2026-08-20)
March 8, 2018	AMAT	A	3,789	—	—	20,027 Direct	+23.33%	Acquired	(price as of 2026-08-20)
Aug. 23, 2017	AMAT	S	22,762	$44.03	$1,002,211	16,238 Direct	-58.36%	Disposed	1022.1% (price as of 2026-08-20)
March 9, 2017	AMAT	A	6,019	—	—	39,000 Direct	+18.25%	Acquired	(price as of 2026-08-20)
March 10, 2016	AMAT	A	10,219	—	—	32,981 Direct	+44.90%	Acquired	(price as of 2026-08-20)
April 2, 2015	AMAT	A	8,980	—	—	22,762 Direct	+65.16%	Acquired	(price as of 2026-08-20)
March 19, 2014	AMAT	S	45,706	$19.47	$889,896	13,782 Direct	-76.83%	Disposed	2437.5% (price as of 2026-08-20)
March 4, 2014	AMAT	A	10,615	—	—	59,488 Direct	+21.72%	Acquired	(price as of 2026-08-20)
Jan. 2, 2014	CDXS	A	35,416	—	—	78,519 Direct	+82.17%	Acquired	(price as of 2026-08-20)
June 25, 2013	AMAT	S	37,550	$15.25	$572,638	48,873 Direct	-43.45%	Disposed	3139.7% (price as of 2026-08-20)
March 5, 2013	AMAT	A	14,556	—	—	86,423 Direct	+20.25%	Acquired	(price as of 2026-08-20)
Jan. 24, 2013	CDXS	A	43,103	—	—	43,103 Direct	—	Acquired	(price as of 2026-08-20)
June 6, 2012	CDXS	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
March 6, 2012	AMAT	A	16,659	—	—	71,867 Direct	+30.17%	Acquired	(price as of 2026-08-20)
March 8, 2011	AMAT	A	12,666	—	—	55,208 Direct	+29.77%	Acquired	(price as of 2026-08-20)
Dec. 3, 2010	AMAT	S	15,422	$13.02	$200,794	42,542 Direct	-26.61%	Disposed	3694.6% (price as of 2026-08-20)
March 9, 2010	AMAT	A	16,273	—	—	57,964 Direct	+39.03%	Acquired	(price as of 2026-08-20)
March 10, 2009	AMAT	A	21,691	—	—	41,691 Direct	+108.45%	Acquired	(price as of 2026-08-20)
Sept. 23, 2008	AMAT	A	20,000	—	—	20,000 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.

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 6, 2012	CDXS	Stock Option (Right to Buy)	Common Stock (20,000)	$3.62	June 5, 2022	20,000	Acquired

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

Initial ownership (Form 3) 4 holdings

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

Date	Ticker	Security	Shares	Ownership
June 23, 2021	XOM	Common Stock	17,000	Direct
April 21, 2010	CDXS	Stock Option (right to buy)→ Common Stock	—	Direct
April 21, 2010	CDXS	Stock Option (right to buy)→ Common Stock	—	Direct
Sept. 25, 2008	AMAT	Common Stock	0	Direct