GEMMILL ELIZABETH H

CIK 1200218 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 22, 2004 · Latest: Jan. 22, 2004

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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.

Insider at

OLED selling Aug. 10, 2021

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 87 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

87 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 30, 2026	OLED	A	455	—	—	100,307 Direct	+0.46%	Acquired	(price as of 2026-08-20)
March 31, 2026	OLED	A	456	—	—	99,852 Direct	+0.46%	Acquired	(price as of 2026-08-20)
Dec. 31, 2025	OLED	A	341	—	—	99,396 Direct	+0.34%	Acquired	(price as of 2026-08-20)
Sept. 30, 2025	OLED	A	341	—	—	99,055 Direct	+0.35%	Acquired	(price as of 2026-08-20)
June 30, 2025	OLED	A	342	—	—	98,714 Direct	+0.35%	Acquired	(price as of 2026-08-20)
March 31, 2025	OLED	A	342	—	—	98,372 Direct	+0.35%	Acquired	(price as of 2026-08-20)
Dec. 31, 2024	OLED	A	314	—	—	98,030 Direct	+0.32%	Acquired	(price as of 2026-08-20)
Sept. 30, 2024	OLED	A	314	—	—	97,716 Direct	+0.32%	Acquired	(price as of 2026-08-20)
June 28, 2024	OLED	A	314	—	—	97,402 Direct	+0.32%	Acquired	(price as of 2026-08-20)
March 29, 2024	OLED	A	314	—	—	97,088 Direct	+0.32%	Acquired	(price as of 2026-08-20)
Dec. 29, 2023	OLED	A	472	—	—	96,774 Direct	+0.49%	Acquired	(price as of 2026-08-20)
Sept. 29, 2023	OLED	A	472	—	—	96,302 Direct	+0.49%	Acquired	(price as of 2026-08-20)
June 30, 2023	OLED	A	472	—	—	95,830 Direct	+0.49%	Acquired	(price as of 2026-08-20)
March 31, 2023	OLED	A	472	—	—	95,358 Direct	+0.50%	Acquired	(price as of 2026-08-20)
Dec. 30, 2022	OLED	A	366	—	—	94,886 Direct	+0.39%	Acquired	(price as of 2026-08-20)
Sept. 30, 2022	OLED	A	366	—	—	94,520 Direct	+0.39%	Acquired	(price as of 2026-08-20)
June 30, 2022	OLED	A	366	—	—	94,154 Direct	+0.39%	Acquired	(price as of 2026-08-20)
March 31, 2022	OLED	A	366	—	—	93,788 Direct	+0.39%	Acquired	(price as of 2026-08-20)
Dec. 31, 2021	OLED	A	225	—	—	93,422 Direct	+0.24%	Acquired	(price as of 2026-08-20)
Sept. 30, 2021	OLED	A	226	—	—	93,197 Direct	+0.24%	Acquired	(price as of 2026-08-20)
Aug. 10, 2021	OLED	S	3,869	$205.38	$794,615	92,971 Direct	-4.00%	Disposed	-58.0% (price as of 2026-08-20)
Aug. 10, 2021	OLED	S	5,318	$204.73	$1,088,754	96,840 Direct	-5.21%	Disposed	-57.9% (price as of 2026-08-20)
Aug. 10, 2021	OLED	S	1,052	$202.80	$213,346	102,158 Direct	-1.02%	Disposed	-57.5% (price as of 2026-08-20)
Aug. 10, 2021	OLED	S	4,261	$202.17	$861,446	103,210 Direct	-3.96%	Disposed	-57.4% (price as of 2026-08-20)
June 30, 2021	OLED	A	226	—	—	107,472 Direct	+0.21%	Acquired	(price as of 2026-08-20)
March 31, 2021	OLED	A	226	—	—	107,246 Direct	+0.21%	Acquired	(price as of 2026-08-20)
Dec. 31, 2020	OLED	A	269	—	—	107,020 Direct	+0.25%	Acquired	(price as of 2026-08-20)
Dec. 7, 2020	OLED	G	13,000	—	—	106,751 Direct	-10.86%	Disposed	(price as of 2026-08-20)
Sept. 30, 2020	OLED	A	269	—	—	119,751 Direct	+0.23%	Acquired	(price as of 2026-08-20)
June 30, 2020	OLED	A	269	—	—	119,482 Direct	+0.23%	Acquired	(price as of 2026-08-20)
March 31, 2020	OLED	A	269	—	—	119,213 Direct	+0.23%	Acquired	(price as of 2026-08-20)
Dec. 31, 2019	OLED	A	519	—	—	118,944 Direct	+0.44%	Acquired	(price as of 2026-08-20)
Sept. 30, 2019	OLED	A	519	—	—	118,425 Direct	+0.44%	Acquired	(price as of 2026-08-20)
June 30, 2019	OLED	A	518	—	—	117,906 Direct	+0.44%	Acquired	(price as of 2026-08-20)
March 31, 2019	OLED	A	518	—	—	117,388 Direct	+0.44%	Acquired	(price as of 2026-08-20)
Dec. 31, 2018	OLED	A	1,250	—	—	116,870 Direct	+1.08%	Acquired	(price as of 2026-08-20)
Sept. 30, 2018	OLED	A	1,250	—	—	115,620 Direct	+1.09%	Acquired	(price as of 2026-08-20)
June 30, 2018	OLED	A	1,250	—	—	114,370 Direct	+1.11%	Acquired	(price as of 2026-08-20)
March 31, 2018	OLED	A	1,250	—	—	113,120 Direct	+1.12%	Acquired	(price as of 2026-08-20)
March 15, 2018	OLED	S 10b5-1	100	$126.60	$12,660	111,870 Direct	-0.09%	Disposed	-31.9% (price as of 2026-08-20)
March 15, 2018	OLED	S 10b5-1	600	$125.01	$75,006	111,970 Direct	-0.53%	Disposed	-31.1% (price as of 2026-08-20)
March 15, 2018	OLED	S 10b5-1	1,200	$123.93	$148,716	112,570 Direct	-1.05%	Disposed	-30.5% (price as of 2026-08-20)
March 15, 2018	OLED	S 10b5-1	600	$122.98	$73,788	113,770 Direct	-0.52%	Disposed	-29.9% (price as of 2026-08-20)
Dec. 31, 2017	OLED	A	1,250	—	—	114,370 Direct	+1.11%	Acquired	(price as of 2026-08-20)
Sept. 30, 2017	OLED	A	1,250	—	—	113,120 Direct	+1.12%	Acquired	(price as of 2026-08-20)
June 30, 2017	OLED	A	1,250	—	—	111,870 Direct	+1.13%	Acquired	(price as of 2026-08-20)
March 31, 2017	OLED	A	1,250	—	—	110,620 Direct	+1.14%	Acquired	(price as of 2026-08-20)
Dec. 31, 2016	OLED	A	1,250	—	—	109,370 Direct	+1.16%	Acquired	(price as of 2026-08-20)
Sept. 30, 2016	OLED	A	1,250	—	—	108,120 Direct	+1.17%	Acquired	(price as of 2026-08-20)
June 30, 2016	OLED	A	1,250	—	—	106,870 Direct	+1.18%	Acquired	(price as of 2026-08-20)
March 31, 2016	OLED	A	1,250	—	—	105,620 Direct	+1.20%	Acquired	(price as of 2026-08-20)
Dec. 31, 2015	OLED	A	1,250	—	—	104,370 Direct	+1.21%	Acquired	(price as of 2026-08-20)
Sept. 30, 2015	OLED	A	1,250	—	—	103,120 Direct	+1.23%	Acquired	(price as of 2026-08-20)
June 30, 2015	OLED	A	1,250	—	—	101,870 Direct	+1.24%	Acquired	(price as of 2026-08-20)
March 31, 2015	OLED	A	1,250	—	—	100,620 Direct	+1.26%	Acquired	(price as of 2026-08-20)
Feb. 17, 2015	OLED	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 17, 2015	OLED	S 10b5-1	25,000	$35.52	$888,000	99,370 Direct	-20.10%	Disposed	142.6% (price as of 2026-08-20)
Feb. 17, 2015	OLED	M	25,000	$10.51	$262,750	124,370 Direct	+25.16%	Acquired	719.8% (price as of 2026-08-20)
Dec. 31, 2014	OLED	A	1,250	—	—	99,370 Direct	+1.27%	Acquired	(price as of 2026-08-20)
Dec. 16, 2014	OLED	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 16, 2014	OLED	S 10b5-1	25,000	$26.10	$652,500	98,120 Direct	-20.31%	Disposed	230.1% (price as of 2026-08-20)
Dec. 16, 2014	OLED	M	25,000	$8.14	$203,500	123,120 Direct	+25.48%	Acquired	958.5% (price as of 2026-08-20)
Sept. 30, 2014	OLED	A	1,250	—	—	98,120 Direct	+1.29%	Acquired	(price as of 2026-08-20)
June 30, 2014	OLED	A	1,250	—	—	96,870 Direct	+1.31%	Acquired	(price as of 2026-08-20)
March 31, 2014	OLED	A	1,250	—	—	95,620 Direct	+1.32%	Acquired	(price as of 2026-08-20)
Dec. 31, 2013	OLED	A	1,250	—	—	94,370 Direct	+1.34%	Acquired	(price as of 2026-08-20)
Dec. 24, 2013	OLED	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 24, 2013	OLED	S	25,000	$33.82	$845,500	93,120 Direct	-21.16%	Disposed	154.8% (price as of 2026-08-20)
Dec. 24, 2013	OLED	M	25,000	$16.94	$423,500	118,120 Direct	+26.85%	Acquired	408.6% (price as of 2026-08-20)
Dec. 24, 2013	OLED	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 24, 2013	OLED	S	25,000	$33.82	$845,500	93,120 Direct	-21.16%	Disposed	154.8% (price as of 2026-08-20)
Dec. 24, 2013	OLED	M	25,000	$16.94	$423,500	118,120 Direct	+26.85%	Acquired	408.6% (price as of 2026-08-20)
Sept. 30, 2013	OLED	A	1,250	—	—	93,120 Direct	+1.36%	Acquired	(price as of 2026-08-20)
June 30, 2013	OLED	A	1,250	—	—	91,870 Direct	+1.38%	Acquired	(price as of 2026-08-20)
March 31, 2013	OLED	A	1,250	—	—	90,620 Direct	+1.40%	Acquired	(price as of 2026-08-20)
Dec. 31, 2012	OLED	A	1,250	—	—	89,370 Direct	+1.42%	Acquired	(price as of 2026-08-20)
Sept. 30, 2012	OLED	A	1,250	—	—	88,120 Direct	+1.44%	Acquired	(price as of 2026-08-20)
June 30, 2012	OLED	A	1,250	—	—	86,870 Direct	+1.46%	Acquired	(price as of 2026-08-20)
March 30, 2012	OLED	A	1,250	—	—	85,620 Direct	+1.48%	Acquired	(price as of 2026-08-20)
March 23, 2012	OLED	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 23, 2012	OLED	S 10b5-1	25,000	$36.65	$916,250	84,370 Direct	-22.86%	Disposed	135.1% (price as of 2026-08-20)
March 23, 2012	OLED	M	25,000	$5.45	$136,250	109,370 Direct	+29.63%	Acquired	1480.9% (price as of 2026-08-20)
Dec. 30, 2011	OLED	A	1,250	—	—	84,370 Direct	+1.50%	Acquired	(price as of 2026-08-20)
Nov. 21, 2011	OLED	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 21, 2011	OLED	M	20,000	$8.56	$171,200	83,120 Direct	+31.69%	Acquired	906.5% (price as of 2026-08-20)
Nov. 21, 2011	OLED	F	3,876	$44.16	$171,164	63,120 Direct	-5.79%	Disposed	95.1% (price as of 2026-08-20)
Sept. 30, 2011	OLED	A	1,250	—	—	66,996 Direct	+1.90%	Acquired	(price as of 2026-08-20)
June 30, 2011	OLED	A	1,250	—	—	65,746 Direct	+1.94%	Acquired	(price as of 2026-08-20)
March 31, 2011	OLED	A	1,250	—	—	64,496 Direct	+1.98%	Acquired	(price as of 2026-08-20)
Dec. 31, 2010	OLED	A	1,439	—	—	63,246 Direct	+2.33%	Acquired	(price as of 2026-08-20)
Dec. 9, 2010	OLED	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 9, 2010	OLED	M	10,000	$9.44	$94,400	61,807 Direct	+19.30%	Acquired	812.7% (price as of 2026-08-20)
Dec. 9, 2010	OLED	F	3,228	$29.23	$94,354	51,807 Direct	-5.87%	Disposed	194.8% (price as of 2026-08-20)
Sept. 30, 2010	OLED	A	1,440	—	—	55,035 Direct	+2.69%	Acquired	(price as of 2026-08-20)
June 30, 2010	OLED	A	1,440	—	—	53,595 Direct	+2.76%	Acquired	(price as of 2026-08-20)
March 31, 2010	OLED	A	1,440	—	—	52,155 Direct	+2.84%	Acquired	(price as of 2026-08-20)
Dec. 31, 2009	OLED	A	1,391	—	—	50,715 Direct	+2.82%	Acquired	(price as of 2026-08-20)
Sept. 30, 2009	OLED	A	1,391	—	—	49,324 Direct	+2.90%	Acquired	(price as of 2026-08-20)
Sept. 28, 2009	OLED	F	3,125	$12.40	$38,750	37,933 Direct	-7.61%	Disposed	594.8% (price as of 2026-08-20)
Sept. 28, 2009	OLED	M	10,000	$3.88	$38,800	47,933 Direct	+26.36%	Acquired	2120.6% (price as of 2026-08-20)

Showing latest 100 of 120 transactions

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
Feb. 17, 2015	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$10.51	Dec. 30, 2015	25,000	Disposed
Dec. 16, 2014	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$8.14	Jan. 18, 2015	25,000	Disposed
Dec. 24, 2013	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$16.94	Jan. 20, 2014	25,000	Disposed
Dec. 24, 2013	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$16.94	Jan. 18, 2015	25,000	Disposed
March 23, 2012	OLED	Stock Option (right to buy)	Common Stock (25,000)	$5.45	Sept. 23, 2012	25,000	Disposed
Nov. 21, 2011	OLED	Employee Stock Option (right to buy)	Common Stock (20,000)	$8.56	Dec. 17, 2011	20,000	Disposed
Dec. 9, 2010	OLED	Employee Stock Option (right to buy)	Common Stock (10,000)	$9.44	Dec. 14, 2010	10,000	Disposed
Sept. 28, 2009	OLED	Employee Stock Option (right to buy)	Common Stock (10,000)	$3.88	Oct. 12, 2009	10,000	Disposed
June 6, 2007	OLED	Employee Stock Option (right to buy)	Common Stock (5,000)	$4.06	June 12, 2007	5,000	Disposed
Dec. 30, 2005	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$10.51	Dec. 30, 2015	25,000	Acquired
Jan. 18, 2005	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$8.14	Jan. 18, 2015	25,000	Acquired
Jan. 20, 2004	OLED	Employee Stock Option (right to buy)	Common Stock (25,000)	$16.94	Jan. 20, 2014	25,000	Acquired

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