Deborah L Stahlkopf

Insider

First SEC filing: Aug. 6, 2021 · Latest: May 19, 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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 14 sells (S) Net: $-15,131,290 + 40 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

40 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	CSCO	S 10b5-1	1,300	$110.68	$143,884	172,303 Direct	-0.75%	Disposed	0.3% (price as of 2026-08-21)
Aug. 14, 2026	CSCO	S 10b5-1	4,487	$111.60	$500,749	167,816 Direct	-2.60%	Disposed	-0.5% (price as of 2026-08-21)
Aug. 14, 2026	CSCO	S 10b5-1	700	$112.63	$78,841	167,116 Direct	-0.42%	Disposed	-1.4% (price as of 2026-08-21)
Aug. 10, 2026	CSCO	F	4,209	$121.43	$511,099	173,603 Direct	-2.37%	Disposed	-8.6% (price as of 2026-08-21)
May 15, 2026	CSCO	S 10b5-1	300	$114.97	$34,491	183,509 Direct	-0.16%	Disposed	-3.4% (price as of 2026-08-21)
May 15, 2026	CSCO	S 10b5-1	1,100	$116.42	$128,062	182,409 Direct	-0.60%	Disposed	-4.6% (price as of 2026-08-21)
May 15, 2026	CSCO	S 10b5-1	2,842	$117.24	$333,196	179,567 Direct	-1.56%	Disposed	-5.3% (price as of 2026-08-21)
May 15, 2026	CSCO	S 10b5-1	2,344	$118.10	$276,826	177,223 Direct	-1.31%	Disposed	-6.0% (price as of 2026-08-21)
May 10, 2026	CSCO	F	4,069	$96.57	$392,943	183,809 Direct	-2.17%	Disposed	15.0% (price as of 2026-08-21)
March 17, 2026	CSCO	S 10b5-1	7,981	$79.50	$634,490	187,097 Direct	-4.09%	Disposed	39.7% (price as of 2026-08-21)
Feb. 10, 2026	CSCO	F	2,624	$86.78	$227,711	195,078 Direct	-1.33%	Disposed	27.9% (price as of 2026-08-21)
Nov. 17, 2025	CSCO	S 10b5-1	20	$77.98	$1,560	196,718 Direct	-0.01%	Disposed	42.4% (price as of 2026-08-21)
Nov. 14, 2025	CSCO	S 10b5-1	111,081	$78.20	$8,686,534	196,738 Direct	-36.09%	Disposed	42.0% (price as of 2026-08-21)
Nov. 14, 2025	CSCO	S 10b5-1	37,723	$77.38	$2,919,006	307,819 Direct	-10.92%	Disposed	43.5% (price as of 2026-08-21)
Nov. 14, 2025	CSCO	S 10b5-1	15,780	$76.59	$1,208,590	345,542 Direct	-4.37%	Disposed	45.0% (price as of 2026-08-21)
Nov. 10, 2025	CSCO	F	119,773	$71.07	$8,512,267	361,322 Direct	-24.90%	Disposed	56.2% (price as of 2026-08-21)
Nov. 10, 2025	CSCO	A	259,130	—	—	481,095 Direct	+116.74%	Acquired	(price as of 2026-08-21)
Sept. 16, 2025	CSCO	A	63,500	—	—	220,684 Direct	+40.40%	Acquired	(price as of 2026-08-21)
Sept. 11, 2025	CSCO	S 10b5-1	100	$68.54	$6,854	157,184 Direct	-0.06%	Disposed	62.0% (price as of 2026-08-21)
Sept. 11, 2025	CSCO	S 10b5-1	2,618	$68.07	$178,207	157,284 Direct	-1.64%	Disposed	63.1% (price as of 2026-08-21)
Sept. 10, 2025	CSCO	F	1,764	$67.34	$118,788	159,902 Direct	-1.09%	Disposed	64.9% (price as of 2026-08-21)
Aug. 15, 2025	CSCO	S 10b5-1	200	$68.20	$13,640	161,662 Direct	-0.12%	Disposed	62.8% (price as of 2026-08-21)
Aug. 15, 2025	CSCO	S 10b5-1	3,400	$67.21	$228,514	161,862 Direct	-2.06%	Disposed	65.2% (price as of 2026-08-21)
Aug. 15, 2025	CSCO	S 10b5-1	6,183	$66.21	$409,376	165,262 Direct	-3.61%	Disposed	67.7% (price as of 2026-08-21)
Aug. 10, 2025	CSCO	F	6,348	$71.79	$455,723	171,445 Direct	-3.57%	Disposed	54.7% (price as of 2026-08-21)
June 12, 2025	CSCO	S 10b5-1	290	$64.27	$18,638	176,737 Direct	-0.16%	Disposed	72.8% (price as of 2026-08-21)
June 11, 2025	CSCO	S 10b5-1	2,407	$64.01	$154,072	177,027 Direct	-1.34%	Disposed	73.5% (price as of 2026-08-21)
June 10, 2025	CSCO	F	1,752	$65.90	$115,457	179,434 Direct	-0.97%	Disposed	68.5% (price as of 2026-08-21)
May 16, 2025	CSCO	S 10b5-1	9,643	$63.50	$612,330	181,186 Direct	-5.05%	Disposed	74.9% (price as of 2026-08-21)
May 10, 2025	CSCO	F	6,389	$59.77	$381,871	190,829 Direct	-3.24%	Disposed	85.8% (price as of 2026-08-21)
March 12, 2025	CSCO	S 10b5-1	2,856	$60.71	$173,388	195,774 Direct	-1.44%	Disposed	82.9% (price as of 2026-08-21)
March 10, 2025	CSCO	F	1,561	$63.94	$99,810	198,630 Direct	-0.78%	Disposed	73.6% (price as of 2026-08-21)
Feb. 21, 2025	CSCO	S 10b5-1	200	$64.94	$12,988	200,191 Direct	-0.10%	Disposed	71.0% (price as of 2026-08-21)
Feb. 21, 2025	CSCO	S 10b5-1	11,608	$64.36	$747,091	200,391 Direct	-5.48%	Disposed	72.5% (price as of 2026-08-21)
Feb. 13, 2025	NEE	A	2,700	—	—	7,490 Direct	+56.37%	Acquired	(price as of 2026-08-21)
Feb. 10, 2025	CSCO	F	4,105	$62.27	$255,618	211,999 Direct	-1.90%	Disposed	78.3% (price as of 2026-08-21)
Dec. 12, 2024	CSCO	S 10b5-1	2,660	$59.21	$157,499	214,712 Direct	-1.22%	Disposed	87.5% (price as of 2026-08-21)
Dec. 10, 2024	CSCO	F	1,728	$58.95	$101,866	217,372 Direct	-0.79%	Disposed	88.3% (price as of 2026-08-21)
Nov. 15, 2024	CSCO	S 10b5-1	58,188	$57.49	$3,345,228	219,100 Direct	-20.98%	Disposed	93.1% (price as of 2026-08-21)
Nov. 10, 2024	CSCO	F	38,287	$58.06	$2,222,943	277,288 Direct	-12.13%	Disposed	91.2% (price as of 2026-08-21)
Nov. 10, 2024	CSCO	A	69,999	—	—	315,575 Direct	+28.50%	Acquired	(price as of 2026-08-21)
Sept. 19, 2024	CSCO	A	82,621	—	—	243,844 Direct	+51.25%	Acquired	(price as of 2026-08-21)
Sept. 12, 2024	CSCO	S 10b5-1	2,642	$48.95	$129,326	161,223 Direct	-1.61%	Disposed	126.8% (price as of 2026-08-21)
Sept. 10, 2024	CSCO	F	1,715	$48.70	$83,520	163,865 Direct	-1.04%	Disposed	128.0% (price as of 2026-08-21)
Aug. 16, 2024	CSCO	S 10b5-1	2,400	$49.63	$119,112	165,580 Direct	-1.43%	Disposed	123.7% (price as of 2026-08-21)
Aug. 16, 2024	CSCO	S 10b5-1	5,062	$49.30	$249,557	167,980 Direct	-2.93%	Disposed	125.2% (price as of 2026-08-21)
Aug. 10, 2024	CSCO	F	4,847	$45.47	$220,393	173,042 Direct	-2.72%	Disposed	144.2% (price as of 2026-08-21)
June 13, 2024	CSCO	S 10b5-1	2,619	$45.34	$118,745	176,384 Direct	-1.46%	Disposed	144.9% (price as of 2026-08-21)
June 10, 2024	CSCO	F	1,702	$45.84	$78,020	179,003 Direct	-0.94%	Disposed	142.2% (price as of 2026-08-21)
May 17, 2024	CSCO	S 10b5-1	8,016	$48.24	$386,692	180,705 Direct	-4.25%	Disposed	130.2% (price as of 2026-08-21)
May 10, 2024	CSCO	F	4,186	$47.79	$200,049	188,721 Direct	-2.17%	Disposed	132.3% (price as of 2026-08-21)
March 14, 2024	CSCO	S 10b5-1	237	$50.27	$11,914	191,322 Direct	-0.12%	Disposed	120.9% (price as of 2026-08-21)
March 13, 2024	CSCO	S 10b5-1	3,002	$50.01	$150,130	191,559 Direct	-1.54%	Disposed	122.0% (price as of 2026-08-21)
March 10, 2024	CSCO	F	1,045	$49.50	$51,728	194,561 Direct	-0.53%	Disposed	124.3% (price as of 2026-08-21)
March 5, 2024	CSCO	S 10b5-1	9,100	$48.86	$444,626	195,606 Direct	-4.45%	Disposed	127.2% (price as of 2026-08-21)
Feb. 15, 2024	NEE	A	3,240	—	—	4,790 Direct	+209.03%	Acquired	(price as of 2026-08-21)
Feb. 10, 2024	CSCO	F	3,003	$50.13	$150,540	204,706 Direct	-1.45%	Disposed	121.5% (price as of 2026-08-21)
Dec. 13, 2023	CSCO	S 10b5-1	2,578	$49.18	$126,786	206,142 Direct	-1.24%	Disposed	125.8% (price as of 2026-08-21)
Dec. 10, 2023	CSCO	F	1,675	$48.38	$81,036	208,720 Direct	-0.80%	Disposed	129.5% (price as of 2026-08-21)
Nov. 17, 2023	CSCO	S 10b5-1	24,579	$47.99	$1,179,546	210,395 Direct	-10.46%	Disposed	131.4% (price as of 2026-08-21)
Nov. 10, 2023	CSCO	F	15,951	$52.00	$829,452	234,678 Direct	-6.36%	Disposed	113.5% (price as of 2026-08-21)
Sept. 21, 2023	CSCO	A	79,678	—	—	249,074 Direct	+47.04%	Acquired	(price as of 2026-08-21)
Sept. 13, 2023	CSCO	S 10b5-1	3,022	$56.22	$169,897	169,396 Direct	-1.75%	Disposed	97.5% (price as of 2026-08-21)
Sept. 10, 2023	CSCO	F	1,200	$56.67	$68,004	172,418 Direct	-0.69%	Disposed	95.9% (price as of 2026-08-21)
Aug. 18, 2023	CSCO	S 10b5-1	2,158	$55.15	$119,014	173,618 Direct	-1.23%	Disposed	101.3% (price as of 2026-08-21)
Aug. 10, 2023	CSCO	F	696	$52.99	$36,881	175,776 Direct	-0.39%	Disposed	109.5% (price as of 2026-08-21)
June 14, 2023	CSCO	S 10b5-1	166	$50.88	$8,446	175,188 Direct	-0.09%	Disposed	118.2% (price as of 2026-08-21)
June 13, 2023	CSCO	S 10b5-1	3,002	$50.73	$152,291	175,354 Direct	-1.68%	Disposed	118.9% (price as of 2026-08-21)
June 10, 2023	CSCO	F	1,022	$49.66	$50,753	178,356 Direct	-0.57%	Disposed	123.6% (price as of 2026-08-21)
May 19, 2023	CSCO	S 10b5-1	2,142	$48.50	$103,887	179,378 Direct	-1.18%	Disposed	128.9% (price as of 2026-08-21)
May 18, 2023	NEE	A	1,550	—	—	1,550 Direct	—	Acquired	(price as of 2026-08-21)
May 10, 2023	CSCO	F	691	$46.47	$32,111	181,520 Direct	-0.38%	Disposed	138.9% (price as of 2026-08-21)
March 14, 2023	CSCO	S 10b5-1	3,142	$48.78	$153,267	180,697 Direct	-1.71%	Disposed	127.6% (price as of 2026-08-21)
March 10, 2023	CSCO	F	1,014	$48.81	$49,493	183,839 Direct	-0.55%	Disposed	127.5% (price as of 2026-08-21)
Feb. 17, 2023	CSCO	S 10b5-1	23,701	$50.90	$1,206,381	184,853 Direct	-11.36%	Disposed	118.1% (price as of 2026-08-21)
Feb. 10, 2023	CSCO	F	736	$46.73	$34,393	208,554 Direct	-0.35%	Disposed	137.6% (price as of 2026-08-21)
Dec. 10, 2022	CSCO	F	1,624	$48.46	$78,699	207,815 Direct	-0.78%	Disposed	129.1% (price as of 2026-08-21)
Nov. 10, 2022	CSCO	F	4,388	$43.91	$192,677	209,439 Direct	-2.05%	Disposed	152.9% (price as of 2026-08-21)
Oct. 11, 2022	CSCO	A	107,378	—	—	213,028 Direct	+101.64%	Acquired	(price as of 2026-08-21)
Sept. 10, 2022	CSCO	F	3,984	$45.77	$182,348	105,650 Direct	-3.63%	Disposed	142.6% (price as of 2026-08-21)
Sept. 20, 2021	CSCO	A	42,942	—	—	106,461 Direct	+67.60%	Acquired	(price as of 2026-08-21)
Sept. 20, 2021	CSCO	A	63,519	—	—	63,519 Direct	—	Acquired	(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.

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
Aug. 6, 2021	CSCO	Common Stock	0	Direct