SIMPLEX TRADING, LLC

Position in ZD — Ziff Davis, Inc.

CIK 1488542 CHICAGO, IL

Position in ZD

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$537,211

-$2,437 QoQ

Shares Held

10,258

-27.6% QoQ

Ownership

0.030%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#128

of 264 holders

Holding Since

Mar 2020

13 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Communication Services · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $4,017,007 across 10 Advertising Agencies names. ZD ranks #3 (13.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TTD	Trade Desk, Inc.	71,572	$1,294,021
2	EVC	Entravision Communications Corp	69,812	$910,348
3	ZD	Ziff Davis, Inc. This page	10,258	$537,211
4	STGW	Stagwell Inc	70,051	$520,478
5	WPP	WPP plc	28,025	$434,107
6	APP	AppLovin Corp	593	$305,531
7	IZEA	IZEA Worldwide, Inc.	1,622	$6,001
8	CCO	Clear Channel Outdoor Holdings, Inc.	1,917	$4,639

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$537,211	10,258	-27.6%	Shares	Sole	2026-08-12
2025-09-30	$539,648	14,164	+2300.7%	Shares	Sole	2025-11-12
2025-06-30	$17,859	590	+182.3%	Shares	Sole	2025-08-05
2025-03-31	$7	209	+450.0%	Shares	Sole	2025-05-12
2024-12-31	$2,064	38	-64.5%	Shares	Sole	2025-02-11
2024-09-30	$5,206	107	-16.4%	Shares	Sole	2024-11-08
2024-03-31	$8,069	128	-17.9%	Shares	Sole	2024-04-25
2023-12-31	$10,481	156	+122.9%	Shares	Sole	2024-02-02
2023-06-30	$4	70	+438.5%	Shares	Sole	2023-08-04
2023-03-31	$1,014	13	-99.7%	Shares	Sole	2023-04-27
2022-03-31	$481,480	4,975	+58.7%	Shares	Sole	2022-05-02
2021-03-31	$375,641	3,134	+6.0%	Shares	Sole	2021-04-26
2020-03-31	$221,331	2,957	—	Shares	Sole	2020-04-29
No filing history on record for this holder in this stock.