Andrew William Fraser Brown

Insider

First SEC filing: March 15, 2018 · 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

Insider transactions

0 buys (P) 1 sells (S) Net: $-343,619 + 20 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

20 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 25, 2026	P	S	4,735	$72.57	$343,619	27,683 Direct	-14.61%	Disposed	51.9% (price as of 2026-08-21)
June 10, 2026	P	A	3,515	—	—	32,418 Direct	+12.16%	Acquired	(price as of 2026-08-21)
June 26, 2023	P	S	9,097	$35.83	$325,946	44,964 Direct	-16.83%	Disposed	207.6% (price as of 2026-08-21)
June 14, 2023	P	A	8,543	—	—	54,061 Direct	+18.77%	Acquired	(price as of 2026-08-21)
Dec. 21, 2022	P	S	9,930	$27.28	$270,890	45,518 Direct	-17.91%	Disposed	304.0% (price as of 2026-08-21)
Sept. 12, 2022	P	S	12,637	$30.18	$381,385	55,448 Direct	-18.56%	Disposed	265.2% (price as of 2026-08-21)
June 15, 2022	P	A	9,097	—	—	68,085 Direct	+15.42%	Acquired	(price as of 2026-08-21)
March 21, 2022	P	S	11,564	$35.20	$407,053	58,988 Direct	-16.39%	Disposed	213.1% (price as of 2026-08-21)
June 15, 2021	P	A	12,637	—	—	70,552 Direct	+21.82%	Acquired	(price as of 2026-08-21)
June 25, 2020	P	A	14,182	—	—	57,915 Direct	+32.43%	Acquired	(price as of 2026-08-21)
Sept. 12, 2019	P	A	9,930	—	—	43,733 Direct	+29.38%	Acquired	(price as of 2026-08-21)
Sept. 12, 2019	P	A	33,803	—	—	33,803 Direct	—	Acquired	(price as of 2026-08-21)
June 7, 2019	ZS	M	6,000	—	—	112,333 Direct	-5.07%	Disposed	(price as of 2026-08-21)
June 7, 2019	ZS	S 10b5-1	4,200	$75.00	$315,000	43,213 Indirect	-8.86%	Disposed	130.5% (price as of 2026-08-21)
June 7, 2019	ZS	S 10b5-1	6,000	$75.00	$450,000	5,782 Direct	-50.93%	Disposed	130.5% (price as of 2026-08-21)
June 7, 2019	ZS	M	6,000	$4.12	$24,720	11,782 Direct	+103.77%	Acquired	4096.8% (price as of 2026-08-21)
June 4, 2019	ZS	S 10b5-1	1,400	$68.58	$96,012	47,413 Indirect	-2.87%	Disposed	152.1% (price as of 2026-08-21)
June 3, 2019	ZS	M	2,000	—	—	118,333 Direct	-1.66%	Disposed	(price as of 2026-08-21)
June 3, 2019	ZS	S 10b5-1	2,000	$68.66	$137,320	5,782 Direct	-25.70%	Disposed	151.8% (price as of 2026-08-21)
June 3, 2019	ZS	M	2,000	$4.12	$8,240	7,782 Direct	+34.59%	Acquired	4096.8% (price as of 2026-08-21)
May 15, 2019	ZS	M	6,000	—	—	120,333 Direct	-4.75%	Disposed	(price as of 2026-08-21)
May 15, 2019	ZS	S 10b5-1	6,000	$75.00	$450,000	5,782 Direct	-50.93%	Disposed	130.5% (price as of 2026-08-21)
May 15, 2019	ZS	M	6,000	$4.12	$24,720	11,782 Direct	+103.77%	Acquired	4096.8% (price as of 2026-08-21)
March 5, 2019	ZS	M	2,000	—	—	126,333 Direct	-1.56%	Disposed	(price as of 2026-08-21)
March 5, 2019	ZS	S 10b5-1	2,000	$57.00	$114,000	5,782 Direct	-25.70%	Disposed	203.4% (price as of 2026-08-21)
March 5, 2019	ZS	M	2,000	$4.12	$8,240	7,782 Direct	+34.59%	Acquired	4096.8% (price as of 2026-08-21)
Dec. 18, 2018	ZS	A	4,595	—	—	5,782 Direct	+387.11%	Acquired	(price as of 2026-08-21)
Sept. 13, 2018	ZS	M	21,667	—	—	128,333 Direct	-14.44%	Disposed	(price as of 2026-08-21)
Sept. 13, 2018	ZS	M	13,333	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Sept. 13, 2018	ZS	S	35,000	$40.61	$1,421,350	1,187 Direct	-96.72%	Disposed	325.8% (price as of 2026-08-21)
Sept. 13, 2018	ZS	M	21,667	$4.12	$89,268	36,187 Direct	+149.22%	Acquired	4096.8% (price as of 2026-08-21)
Sept. 13, 2018	ZS	M	13,333	$1.43	$19,066	14,520 Direct	+1123.25%	Acquired	11991.6% (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 7, 2019	ZS	Stock Option (right to buy)	Common Stock (6,000)	$4.12	Oct. 14, 2025	6,000	Disposed
June 3, 2019	ZS	Stock Option (right to buy)	Common Stock (2,000)	$4.12	Oct. 14, 2025	2,000	Disposed
May 15, 2019	ZS	Stock Option (right to buy)	Common Stock (6,000)	$4.12	Oct. 14, 2025	6,000	Disposed
March 5, 2019	ZS	Stock Option (right to buy)	Common Stock (2,000)	$4.12	Oct. 14, 2025	2,000	Disposed
Sept. 13, 2018	ZS	Stock option (right to buy)	Common Stock (21,667)	$4.12	Oct. 14, 2025	21,667	Disposed
Sept. 13, 2018	ZS	Stock Option (right to buy)	Common Stock (13,333)	$1.43	Dec. 6, 2020	13,333	Disposed

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

Initial ownership (Form 3) 4 holdings

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

Date	Ticker	Security	Shares	Ownership
March 15, 2018	ZS	Common Stock	50,000	Indirect
March 15, 2018	ZS	Stock Option (right to buy)→ Common Stock (13,333)	13,333	Direct
March 15, 2018	ZS	Stock Option (right to buy)→ Common Stock (150,000)	150,000	Direct
March 15, 2018	ZS	Stock Option (right to buy)→ Common Stock (20,000)	20,000	Direct