Scion Asset Management's 13F Filings: What They Showed

Scion Asset Management, LLC, the fund run by Michael Burry of "The Big Short," filed its 13F under CIK 0001649339 from 2016 through its most recent reported quarters, before Burry deregistered the firm as an investment adviser and said he was closing it. This guide covers Scion's EDGAR filer details, what its 13Fs actually showed and did not show, and how to pull the filing history as structured data.

Scion Asset Management's EDGAR filer details

CIK 1649339 is not the same filer Burry used in the 2000s. His earlier fund, Scion Capital LLC, filed 13F-HRs under CIK 0001182422 from 2006 through early 2009, before it closed. Scion Asset Management, LLC is a separate, later entity that began filing 13F-HRs in 2016. If you are looking at historical pre-2009 Scion filings, you want the older CIK; for 2016 onward, you want 1649339.

What Scion's 13F filings showed

Like any 13F-HR, Scion's filings reported, as of each quarter's end:

• The CUSIP, issuer name and share count of every qualifying long position in US exchange listed stocks, certain options and a limited set of other Section 13(f) securities.
• The market value of each position at quarter end.
• Whether a reported position was a put or call option rather than a straight equity holding, through the putCall field.

Burry's fund was known for concentrated, relatively small positions, sometimes with heavy use of puts, which is part of why his 13Fs drew outsized media attention relative to the fund's size: Scion's reported regulatory assets under management, disclosed on its Form ADV rather than its 13F, were a small fraction of the assets run by the large institutional managers covered in 13F filings and hedge funds or Bridgewater's 13F filings.

Why Scion's 13F filings stopped

A 13F-HR is required under Section 13(f) of the Securities Exchange Act of 1934 for any manager with investment discretion over $100 million or more in qualifying securities, filed within 45 days of each quarter end, for as long as that manager keeps operating above the threshold.

In November 2025, Burry deregistered Scion Asset Management, LLC as an investment adviser, and in a letter to investors dated October 27, 2025, said he was closing the fund and returning capital. Deregistering as an adviser and winding the fund down means Scion stops being an active institutional investment manager, which removes the condition that creates a 13F filing obligation in the first place. That makes Scion's 13F history a closed, finite set of filings rather than an ongoing quarterly release, which is worth knowing if you are searching for "Scion's latest 13F" expecting a filing that is not coming.

What a Scion 13F does not tell you

The same limits that apply to any 13F apply here, and matter more for a fund associated with concentrated, headline-driven bets:

1. No short positions. A 13F only reports long positions and certain options; it cannot show a short position Burry may have held through means that do not require 13F disclosure.
2. It is a quarter-end snapshot, delayed up to 45 days. A position reported in a 13F may already have been closed by the time the filing becomes public.
3. Options detail is limited. The filing shows that a position was a put or call, not the strike, expiration or cost basis, which matters for sizing a bet correctly rather than just noting its existence.

What is a 13F filing covers these limits in more general detail if you are new to the form.

How to pull Scion's 13F filings as data

You can read Scion's filings for free on EDGAR by searching CIK 1649339 and filtering for form type 13F-HR, the same way as 13F search describes for any manager. To pull every quarter at once instead of opening each filing:

curl "https://secfeedapi.com/v1/form-13f?cik=1649339" \
  -H "Authorization: Bearer YOUR_API_KEY"

That returns every 13F-HR cover page Scion filed under this CIK: the period, the number of holdings reported and total value. To read the actual positions for one quarter, query the holdings endpoint by the same CIK and period:

from secfeed import Client

sf = Client("YOUR_API_KEY")
rows = sf.holdings_13f(cik="1649339", period="09-30-2024")
for r in sorted(rows, key=lambda r: r["value"], reverse=True)[:10]:
    print(r["issuer"], r["shares"], r["value"], r["put_call"])

Because every row carries the same cik and period fields regardless of manager, the same two calls work for comparing Scion against any other filer, including the larger institutions covered in Bridgewater's 13F filings and BlackRock's 13F filing. The Form 13F API covers the full set of fields the holdings endpoint returns for any filer, including voting authority.

Frequently asked questions

What is Michael Burry's fund's CIK on EDGAR?

Scion Asset Management, LLC files under CIK 0001649339 for its 2016-onward filings. His earlier fund, Scion Capital LLC, used CIK 0001182422 for filings from 2006 through 2009.

Is Scion Asset Management still filing 13Fs?

Burry deregistered Scion Asset Management, LLC as an investment adviser in November 2025 and told investors he was closing the fund. Once a manager stops operating above the $100 million Section 13(f) threshold, it no longer has a 13F filing obligation, so Scion's filing history is a finite, closed set rather than an ongoing quarterly release.

Why did Scion's 13Fs get so much media attention relative to its size?

Burry's public profile from "The Big Short" and his history of concentrated, contrarian positions, including heavy use of put options, made his quarterly filings a recurring media story independent of how large the fund actually was.

Does a 13F show whether a position is a long-term holding or a short-term trade?

No. A 13F is a point-in-time snapshot of what a manager held at quarter end. It does not show when a position was opened, how long it was held, or whether it was closed shortly after the reporting date.