Matrix Capital Management Company, LP

CIK 1410830 · last filed 2023-11-09

Matrix Capital Management Company, LP is a corporate insider who has filed 4 SEC Form 4 insider transactions across 2 companies since 2019. The most recent filing shows the insider bought $28.1M of AURA on Nov 9, 2023. Across all open-market trades the lifetime net is +$13.6M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $334.0M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$333.99M

Companies

2

Total Filings

4

Lifetime Open-Market Net

$13.60M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
AURA	10%+ Owner	6,922,870	$7.18	$49.71M	$78.06M	2	2023-11-09
ADPT	Director	12,702,505	$22.38	$284.28M	-$64.46M	2	2021-03-10

Recent Filings

4 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2023-11-09	AURA	Buy (P)	+3,120,000	$28.08M	EDGAR
2021-11-04	AURA	Mixed	+8,225,740	$49.98M	EDGAR
2021-03-10	ADPT	Sell (S)	−1,612,000	-$64.46M	EDGAR
2019-07-02	ADPT	Conv (C)	+34,664,382	$0	EDGAR

Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.