SIMPLEX TRADING, LLC

Position in OUST — Ouster, Inc.

CIK 1488542 CHICAGO, IL

Position in OUST

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$364,350

+$58,512 QoQ

Shares Held

19,834

+40.3% QoQ

Ownership

0.031%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2023

11 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Technology · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $19,995,151 across 19 Electronic Components names. OUST ranks #8 (1.8% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GLW	Corning Inc /Ny	47,403	$6,445,385
2	PLXS	Plexus Corp	18,687	$3,784,864
3	TTMI	Ttm Technologies Inc	38,315	$3,732,647
4	VICR	Vicor Corp	11,698	$1,883,378
5	FN	Fabrinet	3,366	$1,755,436
6	LPTH	Lightpath Technologies Inc	90,437	$907,083
7	ROG	Rogers Corp	4,960	$532,356
8	OUST	Ouster, Inc. This page	19,834	$364,350

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$364,350	19,834	+40.3%	Shares	Sole	2026-05-14
2025-12-31	$305,838	14,133	-82.4%	Shares	Sole	2026-02-11
2025-09-30	$2,176,172	80,450	+3888.6%	Shares	Sole	2025-11-12
2025-06-30	$48,912	2,017	-94.8%	Shares	Sole	2025-08-05
2025-03-31	$348,388	38,796	+98.0%	Shares	Sole	2025-05-12
2024-12-31	$239,450	19,595	-66.3%	Shares	Sole	2025-02-11
2024-09-30	$366,363	58,153	+86.7%	Shares	Sole	2024-11-08
2024-06-30	$306,253	31,155	+1107.6%	Shares	Sole	2024-07-25
2024-03-31	$20,485	2,580	-87.8%	Shares	Sole	2024-04-25
2023-12-31	$161,875	21,105	+42.0%	Shares	Sole	2024-02-02
2023-09-30	$74,924	14,866	—	Shares	Sole	2023-11-01
No filing history on record for this holder in this stock.