William Landman

Insider

First SEC filing: Nov. 16, 2009 · Latest: June 9, 2021

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

ZETA buying Nov. 18, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 43 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

43 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 12, 2026	ZETA	D	22,153	$28.55	$632,468	250,063 Direct	-8.14%	Disposed	-0.5% (price as of 2026-08-20)
July 1, 2026	ZETA	A	1,270	$19.68	$24,994	272,216 Direct	+0.47%	Acquired	44.3% (price as of 2026-08-20)
July 1, 2026	ZETA	A	7,197	—	—	270,946 Direct	+2.73%	Acquired	(price as of 2026-08-20)
July 1, 2025	ZETA	A	1,614	$15.49	$25,001	271,693 Direct	+0.60%	Acquired	83.4% (price as of 2026-08-20)
July 1, 2025	ZETA	A	9,907	—	—	270,079 Direct	+3.81%	Acquired	(price as of 2026-08-20)
April 1, 2025	ZETA	A	1,843	$13.56	$24,991	260,172 Direct	+0.71%	Acquired	109.5% (price as of 2026-08-20)
March 13, 2025	ZETA	D	33,330	$13.70	$456,621	0 Indirect	-100.00%	Disposed	107.3% (price as of 2026-08-20)
Jan. 1, 2025	ZETA	A	1,389	$17.99	$24,988	258,329 Direct	+0.54%	Acquired	57.9% (price as of 2026-08-20)
Dec. 12, 2024	ZETA	D	33,334	$21.73	$724,348	33,330 Indirect	-50.00%	Disposed	30.7% (price as of 2026-08-20)
Nov. 18, 2024	ZETA	P	8,010	$18.55	$148,586	256,940 Direct	+3.22%	Acquired	53.1% (price as of 2026-08-20)
Oct. 1, 2024	ZETA	A	838	$29.83	$24,998	248,930 Direct	+0.34%	Acquired	-4.8% (price as of 2026-08-20)
July 1, 2024	ZETA	A	1,416	$17.65	$24,992	248,092 Direct	+0.57%	Acquired	60.9% (price as of 2026-08-20)
July 1, 2024	ZETA	A	8,241	—	—	246,676 Direct	+3.46%	Acquired	(price as of 2026-08-20)
May 16, 2024	ZETA	D	16,667	$17.10	$285,006	66,664 Indirect	-20.00%	Disposed	66.1% (price as of 2026-08-20)
May 16, 2024	ZETA	D	150,000	$17.10	$2,565,000	238,435 Direct	-38.62%	Disposed	66.1% (price as of 2026-08-20)
April 1, 2024	ZETA	A	2,312	$10.81	$24,993	388,435 Direct	+0.60%	Acquired	162.8% (price as of 2026-08-20)
March 7, 2024	ZETA	D	97,752	$10.23	$1,000,003	386,123 Direct	-20.20%	Disposed	177.6% (price as of 2026-08-20)
March 7, 2024	ZETA	D	30,851	$10.23	$315,606	83,331 Indirect	-27.02%	Disposed	177.6% (price as of 2026-08-20)
Jan. 1, 2024	ZETA	A	2,834	$8.82	$24,996	483,875 Direct	+0.59%	Acquired	222.0% (price as of 2026-08-20)
Dec. 13, 2023	ZETA	D	85,818	$8.58	$736,318	114,182 Indirect	-42.91%	Disposed	231.0% (price as of 2026-08-20)
Dec. 13, 2023	ZETA	D	47,895	$8.58	$410,939	0 Indirect	-100.00%	Disposed	231.0% (price as of 2026-08-20)
Dec. 13, 2023	ZETA	D	185	$8.58	$1,587	0 Indirect	-100.00%	Disposed	231.0% (price as of 2026-08-20)
Dec. 13, 2023	ZETA	D	1,850	$8.58	$15,873	0 Indirect	-100.00%	Disposed	231.0% (price as of 2026-08-20)
Dec. 13, 2023	ZETA	D	37,137	$8.58	$318,635	0 Indirect	-100.00%	Disposed	231.0% (price as of 2026-08-20)
Dec. 13, 2023	ZETA	D	1,940	$8.58	$16,645	0 Indirect	-100.00%	Disposed	231.0% (price as of 2026-08-20)
Nov. 22, 2023	ZETA	D	50,000	$8.66	$433,000	481,041 Direct	-9.42%	Disposed	228.0% (price as of 2026-08-20)
Oct. 1, 2023	ZETA	A	2,994	$8.35	$25,000	531,041 Direct	+0.57%	Acquired	240.2% (price as of 2026-08-20)
July 1, 2023	ZETA	A	2,927	$8.54	$24,997	528,047 Direct	+0.56%	Acquired	232.6% (price as of 2026-08-20)
July 1, 2023	ZETA	A	17,564	—	—	525,120 Direct	+3.46%	Acquired	(price as of 2026-08-20)
April 1, 2023	ZETA	A	2,308	$10.83	$24,996	507,556 Direct	+0.46%	Acquired	162.3% (price as of 2026-08-20)
Jan. 1, 2023	ZETA	A	3,060	$8.17	$25,000	505,248 Direct	+0.61%	Acquired	247.7% (price as of 2026-08-20)
Nov. 16, 2022	ZETA	J	405,156	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 16, 2022	ZETA	J	1,303,533	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 1, 2022	ZETA	A	3,782	$6.61	$24,999	46,400 Direct	+8.87%	Acquired	329.7% (price as of 2026-08-20)
July 1, 2022	ZETA	J	9,815,184	—	—	200,000 Indirect	-98.00%	Disposed	(price as of 2026-08-20)
July 1, 2022	ZETA	A	5,530	$4.52	$24,996	42,618 Direct	+14.91%	Acquired	528.4% (price as of 2026-08-20)
July 1, 2022	ZETA	A	35,128	—	—	37,088 Direct	+1792.24%	Acquired	(price as of 2026-08-20)
April 1, 2022	ZETA	A	1,960	$12.75	$24,990	1,960 Direct	—	Acquired	122.8% (price as of 2026-08-20)
June 14, 2021	ZETA	S	2,105	$10.00	$21,050	47,895 Indirect	-4.21%	Disposed	184.0% (price as of 2026-08-20)
June 14, 2021	ZETA	S	456,341	$10.00	$4,563,410	10,015,184 Indirect	-4.36%	Disposed	184.0% (price as of 2026-08-20)
Nov. 16, 2009	KW	D	18,568	$0.55	$10,212	361,432 Indirect	-4.89%	Disposed
Nov. 16, 2009	KW	J	9,258	$9.92	$91,839	101,543 Indirect	+10.03%	Acquired
Nov. 16, 2009	KW	J	23,991	$9.95	$238,710	92,285 Indirect	+35.13%	Acquired
Nov. 13, 2009	KW	D	286,047	—	—	68,294 Indirect	-80.73%	Disposed
Nov. 13, 2009	KW	J	22,037	—	—	354,341 Indirect	-5.86%	Disposed
Nov. 12, 2009	KW	J	40,000	—	—	380,000 Indirect	-9.52%	Disposed

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
Nov. 16, 2009	KW	Sponsors' Warrants	Common Stock, par value $0.0001 per share (18,568)	$12.50	Nov. 13, 2013	18,568	Disposed
Nov. 12, 2009	KW	Sponsors' Warrants [F5]	Common Stock, par value $0.0001 per share (40,000)	$12.50	Nov. 13, 2013	40,000	Disposed

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

Initial ownership (Form 3) 5 holdings

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

Date	Ticker	Security	Shares	Ownership
June 9, 2021	ZETA	Class A Common Stock	10,471,559	Indirect
June 9, 2021	ZETA	Class A Common Stock	50,000	Indirect
June 9, 2021	ZETA	Class A Common Stock	405,156	Indirect
June 9, 2021	ZETA	Class A Common Stock	607,165	Indirect
Nov. 16, 2009	KW	Common Stock, $0.0001 Par Value Per Share	432,835	Indirect