LIVE FROM THE DATABASETRANSACTIONS 361,642COMPANIES 5,757LATEST TRADE Oct 16UPDATED Oct 16, 07:42 PM

Reporting ownerCIK 0001473289

Thomas J. Seifert

166 transactions in one company, from October 20, 2025 to September 17, 2026.

Transactions: 1661 company
Bought · P: $0open market
Sold · S: $55.9Mopen market
Net: −$55.9Mnet selling

By company

Where this insider traded.

Company	Ticker	Trades	Bought	Sold
Cloudflare, Inc.	NET	166	—	$55.9M

All transactions

166 in total, newest filings first.

Company	Ticker	Insider	Date	Code	Shares	Price	Value
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Sep 17	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Sep 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Sep 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	100	$336.51	$34K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	600	$335.32	$201K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	1,868	$334.59	$625K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	2,632	$333.62	$878K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	1,604	$332.50	$533K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	1,196	$331.59	$397K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	700	$330.23	$231K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	700	$329.37	$231K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	300	$328.04	$98K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	100	$326.56	$33K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	100	$320.89	$32K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	SPLAN	100	$318.90	$32K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 17	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Sep 15	F	2,944	$327.23	$963K
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Aug 17	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Aug 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Aug 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	100	$314.61	$31K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	200	$312.32	$62K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	300	$309.07	$93K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	3,100	$308.23	$956K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	2,456	$307.29	$755K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	2,944	$306.24	$902K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	SPLAN	900	$305.25	$275K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 17	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 15	F	2,944	$315.78	$930K
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Aug 4	MPLAN	55,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 4	SPLAN	1,139	$301.00	$343K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 4	SPLAN	53,861	$300.28	$16.2M
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Aug 4	MPLAN	55,000	$44.72	$2.5M
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jul 17	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jul 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jul 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	300	$281.29	$84K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	800	$279.91	$224K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	1,201	$278.76	$335K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	3,299	$277.68	$916K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	1,741	$276.63	$482K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	1,559	$275.79	$430K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	500	$274.60	$137K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	300	$270.50	$81K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	100	$267.76	$27K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	SPLAN	200	$266.19	$53K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 17	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jul 15	FPLAN	2,943	$281.75	$829K
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jun 17	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jun 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jun 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	600	$235.34	$141K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	2,633	$234.18	$617K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	3,167	$233.44	$739K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	600	$232.00	$139K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	685	$230.90	$158K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	515	$229.95	$118K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	900	$228.91	$206K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	SPLAN	900	$227.74	$205K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 17	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jun 15	FPLAN	2,944	$228.48	$673K
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	May 18	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	May 18	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	May 18	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	270	$203.02	$55K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	2,000	$202.17	$404K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	3,570	$201.21	$718K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	2,432	$200.20	$487K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	928	$199.05	$185K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	400	$197.81	$79K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	300	$195.14	$59K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	SPLAN	100	$193.28	$19K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 18	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	May 15	FPLAN	9,667	$199.81	$1.9M
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Apr 17	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Apr 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Apr 17	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	400	$200.95	$80K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	2,725	$200.51	$546K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	1,475	$199.48	$294K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	600	$198.04	$119K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	1,000	$196.97	$197K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	1,724	$196.04	$338K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	SPLAN	2,076	$195.09	$405K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 17	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Apr 15	FPLAN	2,944	$178.65	$526K
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Mar 17	CPLAN	10,341	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Mar 17	MPLAN	10,341	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Mar 17	MPLAN	10,341	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 17	SPLAN	2,000	$213.23	$426K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 17	SPLAN	5,000	$212.57	$1.1M
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 17	SPLAN	3,041	$211.69	$644K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 17	SPLAN	100	$208.64	$21K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 17	SPLAN	200	$207.68	$42K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 17	CPLAN	10,341	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Mar 15	FPLAN	2,943	$212.45	$625K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 6	A	142,116	$0.00	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Feb 20	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Feb 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Feb 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	100	$195.19	$20K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	395	$194.05	$77K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	2,766	$193.12	$534K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	4,771	$192.18	$917K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	8,133	$191.13	$1.6M
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	2,613	$190.35	$497K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	300	$188.77	$57K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	200	$187.39	$37K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	500	$186.10	$93K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	700	$185.09	$130K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	1,000	$183.78	$184K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	1,300	$182.53	$237K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	1,500	$181.82	$273K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	1,900	$180.68	$343K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	2,400	$179.51	$431K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	4,700	$178.53	$839K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	SPLAN	8,279	$177.18	$1.5M
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 20	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Feb 15	F	20,477	$195.85	$4.0M
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jan 20	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jan 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Jan 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	100	$181.98	$18K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	600	$181.27	$109K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	1,900	$180.09	$342K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	1,200	$179.41	$215K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	1,800	$178.08	$321K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	3,472	$177.17	$615K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	SPLAN	928	$176.27	$164K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Jan 20	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Dec 22	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Dec 22	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Dec 22	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Dec 22	SPLAN	483	$203.35	$98K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Dec 22	SPLAN	3,328	$202.37	$673K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Dec 22	SPLAN	4,836	$201.52	$975K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Dec 22	SPLAN	1,000	$200.58	$201K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Dec 22	SPLAN	353	$198.64	$70K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Dec 22	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Nov 20	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Nov 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Nov 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	100	$202.96	$20K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	1,300	$202.31	$263K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	1,703	$200.42	$341K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	3,400	$199.75	$679K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	2,700	$198.83	$537K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	1,358	$197.65	$268K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	600	$196.39	$118K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	1,500	$195.55	$293K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	1,900	$194.34	$369K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	2,725	$193.50	$527K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	8,666	$192.47	$1.7M
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	13,331	$191.45	$2.6M
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	SPLAN	2,272	$190.31	$432K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 20	CPLAN	10,000	—	—
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Nov 15	F	20,476	$210.60	$4.3M
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Oct 20	CPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Oct 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFODERIV	Oct 20	MPLAN	10,000	$0.00	—?
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Oct 20	SPLAN	300	$213.40	$64K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Oct 20	SPLAN	3,846	$212.75	$818K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Oct 20	SPLAN	2,754	$211.71	$583K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Oct 20	SPLAN	2,600	$210.78	$548K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Oct 20	SPLAN	500	$209.62	$105K
Cloudflare, Inc.	NET	Thomas J. SeifertCFO	Oct 20	CPLAN	10,000	—	—