David M Rothenstein

Insider

First SEC filing: Nov. 4, 2008 · Latest: Nov. 4, 2008

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

CIEN selling Aug. 14, 2026

Insider transactions

0 buys (P) 3 sells (S) Net: $-3,290,200 + 61 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

61 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	CIEN	S 10b5-1	2,500	$438.10	$1,095,250	180,231 Direct	-1.37%	Disposed	-10.5% (price as of 2026-08-20)
July 15, 2026	CIEN	S 10b5-1	2,500	$420.91	$1,052,275	182,731 Direct	-1.35%	Disposed	-6.8% (price as of 2026-08-20)
June 20, 2026	CIEN	F	220	$428.22	$94,208	185,231 Direct	-0.12%	Disposed	-8.4% (price as of 2026-08-20)
June 20, 2026	CIEN	F	436	$428.22	$186,704	185,451 Direct	-0.23%	Disposed	-8.4% (price as of 2026-08-20)
June 20, 2026	CIEN	F	811	$428.22	$347,286	185,887 Direct	-0.43%	Disposed	-8.4% (price as of 2026-08-20)
June 20, 2026	CIEN	F	204	$428.22	$87,357	186,698 Direct	-0.11%	Disposed	-8.4% (price as of 2026-08-20)
June 20, 2026	CIEN	F	679	$428.22	$290,761	186,902 Direct	-0.36%	Disposed	-8.4% (price as of 2026-08-20)
June 15, 2026	CIEN	S 10b5-1	2,500	$457.07	$1,142,675	187,581 Direct	-1.32%	Disposed	-14.2% (price as of 2026-08-20)
March 20, 2026	CIEN	F	220	$383.89	$84,456	195,081 Direct	-0.11%	Disposed	2.2% (price as of 2026-08-20)
March 20, 2026	CIEN	F	436	$383.89	$167,376	195,301 Direct	-0.22%	Disposed	2.2% (price as of 2026-08-20)
March 20, 2026	CIEN	F	811	$383.89	$311,335	195,737 Direct	-0.41%	Disposed	2.2% (price as of 2026-08-20)
March 20, 2026	CIEN	F	174	$383.89	$66,797	196,548 Direct	-0.09%	Disposed	2.2% (price as of 2026-08-20)
March 20, 2026	CIEN	F	472	$383.89	$181,196	196,722 Direct	-0.24%	Disposed	2.2% (price as of 2026-08-20)
March 20, 2023	CIEN	F	138	$50.20	$6,928	247,975 Direct	-0.06%	Disposed	681.4% (price as of 2026-08-20)
March 20, 2023	CIEN	F	460	$50.20	$23,092	248,113 Direct	-0.19%	Disposed	681.4% (price as of 2026-08-20)
March 20, 2023	CIEN	F	298	$50.20	$14,960	248,573 Direct	-0.12%	Disposed	681.4% (price as of 2026-08-20)
March 20, 2023	CIEN	F	341	$50.20	$17,118	248,871 Direct	-0.14%	Disposed	681.4% (price as of 2026-08-20)
March 20, 2023	CIEN	F	456	$50.20	$22,891	249,212 Direct	-0.18%	Disposed	681.4% (price as of 2026-08-20)
Nov. 15, 2022	CIEN	S 10b5-1	3,500	$45.00	$157,500	231,610 Direct	-1.49%	Disposed	771.6% (price as of 2026-08-20)
May 16, 2022	CIEN	S 10b5-1	3,500	$51.97	$181,895	255,636 Direct	-1.35%	Disposed	654.7% (price as of 2026-08-20)
June 20, 2020	CIEN	F	468	$53.62	$25,094	267,194 Direct	-0.17%	Disposed	631.5% (price as of 2026-08-20)
June 20, 2020	CIEN	F	418	$53.62	$22,413	267,662 Direct	-0.16%	Disposed	631.5% (price as of 2026-08-20)
June 20, 2020	CIEN	F	453	$53.62	$24,290	268,080 Direct	-0.17%	Disposed	631.5% (price as of 2026-08-20)
June 20, 2020	CIEN	F	598	$53.62	$32,065	268,533 Direct	-0.22%	Disposed	631.5% (price as of 2026-08-20)
June 15, 2020	CIEN	S 10b5-1	2,500	$52.12	$130,300	269,131 Direct	-0.92%	Disposed	652.6% (price as of 2026-08-20)
April 15, 2020	CIEN	S 10b5-1	2,500	$44.65	$111,625	274,131 Direct	-0.90%	Disposed	778.5% (price as of 2026-08-20)
March 20, 2020	CIEN	F	417	$36.07	$15,041	276,631 Direct	-0.15%	Disposed	987.4% (price as of 2026-08-20)
March 20, 2020	CIEN	F	453	$36.07	$16,340	277,048 Direct	-0.16%	Disposed	987.4% (price as of 2026-08-20)
March 20, 2020	CIEN	F	598	$36.07	$21,570	277,501 Direct	-0.22%	Disposed	987.4% (price as of 2026-08-20)
March 20, 2020	CIEN	F	468	$36.07	$16,881	278,099 Direct	-0.17%	Disposed	987.4% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	657	$42.39	$27,850	285,199 Direct	-0.23%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	867	$42.39	$36,752	285,856 Direct	-0.30%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	679	$42.39	$28,783	286,723 Direct	-0.24%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	550	$42.39	$23,314	287,402 Direct	-0.19%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	1,764	$42.39	$74,776	287,952 Direct	-0.61%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	2,205	$42.39	$93,470	289,716 Direct	-0.76%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	4,158	$42.39	$176,258	291,921 Direct	-1.40%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	769	$42.39	$32,598	296,079 Direct	-0.26%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	1,647	$42.39	$69,816	296,848 Direct	-0.55%	Disposed	825.3% (price as of 2026-08-20)
Dec. 20, 2019	CIEN	F	1,611	$42.39	$68,290	298,495 Direct	-0.54%	Disposed	825.3% (price as of 2026-08-20)
Dec. 17, 2019	CIEN	A	8,017	—	—	8,017 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 17, 2019	CIEN	A	16,430	—	—	300,106 Direct	+5.79%	Acquired	(price as of 2026-08-20)
Dec. 17, 2019	CIEN	A	20,043	—	—	283,676 Direct	+7.60%	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	CIEN	S 10b5-1	2,000	$41.72	$83,440	263,633 Direct	-0.75%	Disposed	840.2% (price as of 2026-08-20)
Nov. 15, 2019	CIEN	S 10b5-1	2,000	$37.73	$75,460	265,633 Direct	-0.75%	Disposed	939.6% (price as of 2026-08-20)
Sept. 20, 2019	CIEN	F	436	$39.58	$17,257	269,633 Direct	-0.16%	Disposed	891.0% (price as of 2026-08-20)
Sept. 20, 2019	CIEN	F	468	$39.58	$18,523	270,069 Direct	-0.17%	Disposed	891.0% (price as of 2026-08-20)
Sept. 20, 2019	CIEN	F	598	$39.58	$23,669	270,537 Direct	-0.22%	Disposed	891.0% (price as of 2026-08-20)
Sept. 20, 2019	CIEN	F	453	$39.58	$17,930	271,135 Direct	-0.17%	Disposed	891.0% (price as of 2026-08-20)
June 20, 2019	CIEN	F	436	$44.33	$19,328	277,588 Direct	-0.16%	Disposed	784.8% (price as of 2026-08-20)
June 20, 2019	CIEN	F	468	$44.33	$20,746	278,024 Direct	-0.17%	Disposed	784.8% (price as of 2026-08-20)
June 20, 2019	CIEN	F	453	$44.33	$20,081	278,492 Direct	-0.16%	Disposed	784.8% (price as of 2026-08-20)
June 20, 2019	CIEN	F	598	$44.33	$26,509	278,945 Direct	-0.21%	Disposed	784.8% (price as of 2026-08-20)
May 15, 2019	CIEN	S 10b5-1	2,000	$32.89	$65,780	281,543 Direct	-0.71%	Disposed	1092.6% (price as of 2026-08-20)
Jan. 22, 2019	CIEN	S 10b5-1	2,000	$38.69	$77,380	291,498 Direct	-0.68%	Disposed	913.8% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	562	$32.91	$18,495	293,498 Direct	-0.19%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	679	$32.91	$22,346	294,060 Direct	-0.23%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	867	$32.91	$28,533	294,739 Direct	-0.29%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	612	$32.91	$20,141	295,606 Direct	-0.21%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	1,618	$32.91	$53,248	296,218 Direct	-0.54%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	974	$32.91	$32,054	297,836 Direct	-0.33%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	1,611	$32.91	$53,018	298,810 Direct	-0.54%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	1,647	$32.91	$54,203	300,421 Direct	-0.55%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	4,158	$32.91	$136,840	302,068 Direct	-1.36%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 20, 2018	CIEN	F	770	$32.91	$25,341	306,226 Direct	-0.25%	Disposed	1091.9% (price as of 2026-08-20)
Dec. 18, 2018	CIEN	A	8,693	—	—	8,693 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 18, 2018	CIEN	A	20,401	—	—	306,996 Direct	+7.12%	Acquired	(price as of 2026-08-20)
Dec. 18, 2018	CIEN	A	21,733	—	—	286,595 Direct	+8.21%	Acquired	(price as of 2026-08-20)
Dec. 14, 2018	CIEN	S 10b5-1	2,000	$34.67	$69,340	264,862 Direct	-0.75%	Disposed	1031.4% (price as of 2026-08-20)
Nov. 15, 2018	CIEN	S 10b5-1	2,000	$33.10	$66,200	266,862 Direct	-0.74%	Disposed	1085.0% (price as of 2026-08-20)
Sept. 20, 2018	CIEN	F	561	$30.99	$17,385	270,862 Direct	-0.21%	Disposed	1165.7% (price as of 2026-08-20)
Sept. 20, 2018	CIEN	F	468	$30.99	$14,503	271,423 Direct	-0.17%	Disposed	1165.7% (price as of 2026-08-20)
Sept. 20, 2018	CIEN	F	598	$30.99	$18,532	271,891 Direct	-0.22%	Disposed	1165.7% (price as of 2026-08-20)
Sept. 20, 2018	CIEN	F	436	$30.99	$13,512	272,489 Direct	-0.16%	Disposed	1165.7% (price as of 2026-08-20)
June 21, 2018	CIEN	S 10b5-1	601	$25.55	$15,356	278,925 Direct	-0.22%	Disposed	1435.2% (price as of 2026-08-20)
June 21, 2018	CIEN	S 10b5-1	472	$25.55	$12,060	279,526 Direct	-0.17%	Disposed	1435.2% (price as of 2026-08-20)
June 21, 2018	CIEN	S 10b5-1	439	$25.55	$11,216	279,998 Direct	-0.16%	Disposed	1435.2% (price as of 2026-08-20)
June 21, 2018	CIEN	S 10b5-1	565	$25.55	$14,436	280,437 Direct	-0.20%	Disposed	1435.2% (price as of 2026-08-20)
June 15, 2018	CIEN	S 10b5-1	2,000	$24.81	$49,620	281,002 Direct	-0.71%	Disposed	1481.0% (price as of 2026-08-20)
May 15, 2018	CIEN	S 10b5-1	2,000	$25.17	$50,340	283,002 Direct	-0.70%	Disposed	1458.4% (price as of 2026-08-20)
April 16, 2018	CIEN	S 10b5-1	2,000	$25.50	$51,000	285,002 Direct	-0.70%	Disposed	1438.2% (price as of 2026-08-20)
March 21, 2018	CIEN	S 10b5-1	601	$26.58	$15,975	287,002 Direct	-0.21%	Disposed	1375.7% (price as of 2026-08-20)
March 21, 2018	CIEN	S 10b5-1	471	$26.58	$12,519	287,603 Direct	-0.16%	Disposed	1375.7% (price as of 2026-08-20)
March 21, 2018	CIEN	S 10b5-1	439	$26.58	$11,669	288,074 Direct	-0.15%	Disposed	1375.7% (price as of 2026-08-20)
March 21, 2018	CIEN	S 10b5-1	565	$26.58	$15,018	288,513 Direct	-0.20%	Disposed	1375.7% (price as of 2026-08-20)
Jan. 16, 2018	CIEN	S 10b5-1	2,000	$22.75	$45,500	291,078 Direct	-0.68%	Disposed	1624.1% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	4,459	$21.22	$94,620	307,985 Direct	-1.43%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	672	$21.22	$14,260	307,313 Direct	-0.22%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	617	$21.22	$13,093	306,696 Direct	-0.20%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	722	$21.22	$15,321	305,974 Direct	-0.24%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	413	$21.22	$8,764	305,561 Direct	-0.13%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	1,501	$21.22	$31,851	304,060 Direct	-0.49%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	1,948	$21.22	$41,337	302,112 Direct	-0.64%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	3,074	$21.22	$65,230	299,038 Direct	-1.02%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	1,752	$21.22	$37,177	297,286 Direct	-0.59%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	1,714	$21.22	$36,371	295,572 Direct	-0.58%	Disposed	1748.4% (price as of 2026-08-20)
Dec. 21, 2017	CIEN	S 10b5-1	2,494	$21.22	$52,923	293,078 Direct	-0.84%	Disposed	1748.4% (price as of 2026-08-20)
Nov. 15, 2017	CIEN	S 10b5-1	2,000	$19.50	$39,000	259,533 Direct	-0.76%	Disposed	1911.5% (price as of 2026-08-20)
Sept. 21, 2017	CIEN	S 10b5-1	517	$21.25	$10,986	263,533 Direct	-0.20%	Disposed	1745.8% (price as of 2026-08-20)
Sept. 21, 2017	CIEN	S 10b5-1	620	$21.25	$13,175	264,050 Direct	-0.23%	Disposed	1745.8% (price as of 2026-08-20)

Showing latest 100 of 211 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
Dec. 17, 2019	CIEN	Market Stock Units (2022)	Common Stock	$0.00	—	8,017	Acquired
Dec. 18, 2018	CIEN	Market Stock Units (2021)	Common Stock	$0.00	—	8,693	Acquired
April 22, 2015	CIEN	Non-Qualified Stock Option (right to buy)	Common Stock (3,571)	$17.43	Oct. 26, 2015	3,571	Disposed
April 22, 2015	CIEN	Non-Qualified Stock Option (right to buy)	Common Stock (3,571)	$16.52	June 10, 2015	3,571	Disposed

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

Initial ownership (Form 3) 8 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 4, 2008	CIEN	Common Stock	—	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (3,571)	3,571	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (2,678)	2,678	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (3,571)	3,571	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (2,142)	2,142	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (3,214)	3,214	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (1,320)	1,320	Direct
Nov. 4, 2008	CIEN	Non-Qualified Stock Option (right to buy)→ Common Stock (2,692)	2,692	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CIEN

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$573,900	—	—	—	—	—	—	$4,231,335
2024	$565,000	—	—	—	—	—	—	$3,357,821
2022	$515,000	—	$2,294,362	—	—	—	$12,200	$2,821,562

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.