The MtGox database was hacked and leaked in 2014, including balance info. It's available here:

https://archive.org/details/MtGox2014Leak

DO NOT USE THE EXECUTABLE IN /backoffice/Bin/TibanneBackOffice.zip - IT IS MALWARE

Unzip /backoffice/Exports/mtgox_balances.zip.

Your user ID is a UUID, and can be obtained from your Mt.Gox account creation email, from the account confirmation link (example, sanitized)

ht_ps://mtgox.com/signup/validate?ID=1111aaaa-bbbb-cccc-dddd-eeeeeeffffff&Code=1234567890123456

Search or grep for this UUID in the unzipped mtgox_balances file and you should have values for BTC and your primary currency. Divide these values by 100000000 to get actual amounts.

The 'stamp' column appears to be a timestamp of last update of these values, and the last date in this leak with significant activity is 2014-02-25.

It's a little absurd a leak itself is infected with malware and malicious intent. The current state of Bitcoin and cryto is litterally filled with pirates and thives. I've personally been burnt for a decent amount and I am very tech savvy. Can you imagine your parents trying to navigate the cryto environment?

Yep. Not viable for people like that unless and until an exchange has the same protections and guarantees they expect from a traditional bank.

Amazing! I found my purchase and the exact amount of BTC I was holding. It's not massive but feels great to get some closure on this.