John Ronald Jeffrey Jr.

Insider

First SEC filing: June 23, 2017 · Latest: June 12, 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

AGX selling July 31, 2026

Insider transactions

0 buys (P) 1 sells (S) Net: $-3,313,222 + 30 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

30 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 31, 2026	AGX	S	5,716	$579.64	$3,313,222	2,533 Direct	-69.29%	Disposed	-10.4% (price as of 2026-08-21)
June 30, 2026	AGX	M	1,000	$43.70	$43,700	500 Direct	-66.67%	Disposed	1088.8% (price as of 2026-08-21)
June 30, 2026	AGX	M	5,000	$35.72	$178,600	1,500 Direct	-76.92%	Disposed	1354.4% (price as of 2026-08-21)
June 30, 2026	AGX	M	944	$43.70	$41,253	8,249 Direct	+12.92%	Acquired	1088.8% (price as of 2026-08-21)
June 30, 2026	AGX	M	4,772	$35.72	$170,456	7,305 Direct	+188.39%	Acquired	1354.4% (price as of 2026-08-21)
June 10, 2026	AGX	A	189	—	—	1,023 Direct	+22.66%	Acquired	(price as of 2026-08-21)
June 10, 2026	AGX	M	530	—	—	834 Direct	-38.86%	Disposed	(price as of 2026-08-21)
June 10, 2026	AGX	M	533	—	—	2,533 Direct	+26.65%	Acquired	(price as of 2026-08-21)
Jan. 17, 2025	AGX	M	7,731	$40.15	$310,400	16,985 Direct	+83.54%	Acquired	1193.9% (price as of 2026-08-21)
Jan. 17, 2025	AGX	M	10,000	$40.15	$401,500	21,500 Direct	-31.75%	Disposed	1193.9% (price as of 2026-08-21)
Dec. 31, 2024	AGX	S	5,000	$138.99	$694,950	9,254 Direct	-35.08%	Disposed	273.8% (price as of 2026-08-21)
Dec. 20, 2024	AGX	M	6,964	$41.19	$286,847	14,254 Direct	+95.53%	Acquired	1161.3% (price as of 2026-08-21)
Dec. 20, 2024	AGX	M	10,000	$41.19	$411,900	31,500 Direct	-24.10%	Disposed	1161.3% (price as of 2026-08-21)
Dec. 14, 2024	AGX	M	1,757	—	—	6,455 Direct	+37.40%	Acquired	(price as of 2026-08-21)
Dec. 14, 2024	AGX	M	835	—	—	7,290 Direct	+12.94%	Acquired	(price as of 2026-08-21)
Dec. 14, 2024	AGX	M	1,750	—	—	4,638 Direct	-27.40%	Disposed	(price as of 2026-08-21)
Dec. 14, 2024	AGX	M	833	—	—	3,805 Direct	-17.96%	Disposed	(price as of 2026-08-21)
Dec. 12, 2024	AGX	A	388	—	—	6,388 Direct	+6.47%	Acquired	(price as of 2026-08-21)
June 12, 2024	AGX	M	2,296	$60.05	$137,875	4,698 Direct	+95.59%	Acquired	765.1% (price as of 2026-08-21)
June 12, 2024	AGX	M	10,000	—	—	41,500 Direct	-19.42%	Disposed	(price as of 2026-08-21)
April 25, 2024	AGX	M	2,402	$46.35	$111,333	2,402 Direct	—	Acquired	1020.8% (price as of 2026-08-21)
April 25, 2024	AGX	M	10,000	—	—	51,500 Direct	-16.26%	Disposed	(price as of 2026-08-21)
Dec. 14, 2023	AGX	A	1,500	—	—	61,500 Direct	+2.50%	Acquired	(price as of 2026-08-21)
Dec. 14, 2023	AGX	A	2,500	—	—	6,000 Direct	+71.43%	Acquired	(price as of 2026-08-21)
Dec. 16, 2022	AGX	A	5,000	—	—	60,000 Direct	+9.09%	Acquired	(price as of 2026-08-21)
Dec. 16, 2022	AGX	A	1,750	—	—	3,500 Direct	+100.00%	Acquired	(price as of 2026-08-21)
May 6, 2022	AGX	P	1,000	$36.70	$36,700	8,000 Indirect	+14.29%	Acquired	1315.6% (price as of 2026-08-21)
April 22, 2022	AGX	P	1,000	$36.97	$36,970	7,000 Indirect	+16.67%	Acquired	1305.2% (price as of 2026-08-21)
Dec. 14, 2021	AGX	A	5,000	—	—	55,000 Direct	+10.00%	Acquired	(price as of 2026-08-21)
Dec. 14, 2021	AGX	A	1,750	—	—	1,750 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 14, 2020	AGX	A	10,000	—	—	50,000 Direct	+25.00%	Acquired	(price as of 2026-08-21)
Dec. 23, 2019	AGX	A	10,000	—	—	40,000 Direct	+33.33%	Acquired	(price as of 2026-08-21)
Dec. 12, 2018	AGX	A	10,000	—	—	30,000 Direct	+50.00%	Acquired	(price as of 2026-08-21)
July 31, 2018	AGX	P	1,500	$38.24	$57,360	6,000 Indirect	+33.33%	Acquired	1258.6% (price as of 2026-08-21)
Jan. 11, 2018	AGX	A	10,000	—	—	20,000 Direct	+100.00%	Acquired	(price as of 2026-08-21)
Dec. 11, 2017	AGX	P	1,000	$47.60	$47,600	4,500 Indirect	+28.57%	Acquired	991.4% (price as of 2026-08-21)
Oct. 20, 2017	AGX	P	1,000	$68.02	$68,020	3,500 Indirect	+40.00%	Acquired	663.8% (price as of 2026-08-21)
Sept. 19, 2017	AGX	P	1,500	$62.49	$93,735	2,500 Indirect	+150.00%	Acquired	731.3% (price as of 2026-08-21)
June 26, 2017	AGX	P	1,000	$60.95	$60,950	1,000 Indirect	—	Acquired	752.4% (price as of 2026-08-21)

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 30, 2026	AGX	Option to Purchase Common Stock	Common Stock (1,000)	$43.70	Dec. 14, 2033	1,000	Disposed
June 30, 2026	AGX	Option to Purchase Common Stock	Common Stock (5,000)	$35.72	Dec. 16, 2032	5,000	Disposed
June 10, 2026	AGX	Time-Based Restricted Stock Units	Common Stock (189)	$0.00	—	189	Acquired
June 10, 2026	AGX	Time-Based Restricted Stock Units	Common Stock (530)	$0.00	—	530	Disposed
Jan. 17, 2025	AGX	Option to Purchase Common Stock	Common Stock (10,000)	$40.15	Dec. 23, 2029	10,000	Disposed
Dec. 20, 2024	AGX	Option to Purchase Common Stock	Common Stock (10,000)	$41.19	Dec. 12, 2028	10,000	Disposed
Dec. 14, 2024	AGX	Time-Based Restricted Stock Units	Common Stock (1,750)	$0.00	—	1,750	Disposed
Dec. 14, 2024	AGX	Time-Based Restricted Stock Units	Common Stock (833)	$0.00	—	833	Disposed
Dec. 12, 2024	AGX	Time-Based Restricted Stock Units	Common Stock (388)	$0.00	—	388	Acquired
June 12, 2024	AGX	Option to Purchase Common Stock	Common Stock (10,000)	$60.05	June 22, 2027	10,000	Disposed
April 25, 2024	AGX	Option to Purchase Common Stock	Common Stock (10,000)	$46.35	Jan. 11, 2028	10,000	Disposed
Dec. 14, 2023	AGX	Option to Purchase Common Stock	Common Stock (1,500)	$43.70	Dec. 14, 2033	1,500	Acquired
Dec. 14, 2023	AGX	Time-Based Restricted Stock Units	Common Stock (2,500)	$0.00	Dec. 14, 2026	2,500	Acquired
Dec. 16, 2022	AGX	Option to Purchase Common Stock	Common Stock (5,000)	$35.72	Dec. 16, 2032	5,000	Acquired
Dec. 16, 2022	AGX	Time-Based Restricted Stock Units	Common Stock (1,750)	$0.00	Dec. 16, 2025	1,750	Acquired
Dec. 14, 2021	AGX	Option to Purchase Common Stock	Common Stock (5,000)	$37.13	Dec. 14, 2031	5,000	Acquired
Dec. 14, 2021	AGX	Time-Based Restricted Stock Units	Common Stock (1,750)	$0.00	Dec. 14, 2024	1,750	Acquired
Dec. 14, 2020	AGX	Stock Option to Purchase Common Stock	Common Stock (10,000)	$45.75	Dec. 14, 2030	10,000	Acquired
Dec. 23, 2019	AGX	Stock Option to Purchase Common Stock	Common Stock (10,000)	$40.15	Dec. 23, 2029	10,000	Acquired
Dec. 12, 2018	AGX	Stock Option to purchase Common Stock	Common Stock (10,000)	$41.19	Dec. 12, 2028	10,000	Acquired
Jan. 11, 2018	AGX	Stock Option to purchase Common Stock	Common Stock (10,000)	$46.35	Jan. 11, 2028	10,000	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
June 23, 2017	AGX	Stock Option to purchase Common Stock→ Common Stock	—	Direct