I am creating this topic to track all institutional investments in Bitcoin up to this point and beyond, there were a massive investments in 2020, and this probably propelled BTC into new highs, reaching ATH above $40k USD.
The list will consist from the investment groups and funds that published their involvement and total funds with them, without Grayscale, since that is a custodian for a large number of individual investors, which is arguably the biggest BTC holder at the moment with above 600k BTC at the moment, according to their website
https://grayscale.co/bitcoin-trust/May 2020 - Paul Tudor JonesBVI Fund invested small part of their portfolio (there is no disclosure how much) into BTC, as a hedge from "The Great Monetary Inflation", and Tudor explained that BTC remains him on Gold, when he started investing business in 1976
https://www.cnbc.com/2020/05/11/paul-tudor-jones-calls-bitcoin-a-great-speculation-says-he-has-almost-2percent-of-his-assets-in-it.htmlAugust 2020 - Microstrategy Microstrategy bought 21.454
BTC for $250 million, as their CEO Michael Saylor changed his mind regarding BTC, and became a Bitcoin maximalist, they added to the holdings two times, first buying for $175 million more BTC and then issuing convertible senior notes to purchase more BTC, for $650 million, with their final position amounts almost $1.1 billion USD spent and 70.470
BTC bought, which is above $2.5 billion at the moment
https://www.microstrategy.com/en/company/company-videos/microstrategy-announces-over-1b-in-total-bitcoin-purchases-in-2020https://news.bitcoin.com/microstrategy-buys-29646-more-bitcoins-holds-over-1-billion-btc/https://www.coindesk.com/microstrategy-buys-more-bitcoinOctober 2020 - SquareSquare announced as well that they will buy BTC for their treasury and bought 4.709
BTC for $50 million
https://squareup.com/us/en/press/2020-bitcoin-investmentNovember 2020 - Stanley DruckenmillerStanley had an interview on CNBC and proclaimed that he own more gold than BTC, but that he thinks that "if the gold bet works, the bitcoin bet will probably work better"
https://www.coindesk.com/druckenmiller-invests-bitcoinNovember 2020 - PayPalPayPal announced in November that their users in US can buy BTC, among other three cryptocurrencies directly through-out their account, and, according to cryptoslate portal, they have bought BTC in amount of 70% newly minted BTC in November, through Ibit provider
https://www.reuters.com/article/paypal-cryptocurrency/update-1-paypal-to-open-up-network-to-cryptocurrencies-idUSL1N2HC0PLhttps://cryptoslate.com/bitcoin-shortage-paypal-bought-70-of-all-mined-btc-last-month/December 2020 - MassMutualMassMutual, an insurance firm, first one of the kind, announced that they bought $100 million BTC for their general investment account. It is a small part of their portfolio, but first step into BTC world from one insurance firm
https://www.investopedia.com/decoding-insurance-giant-massmutuals-bitcoin-investment-5092586December 2020 - Ruffer InvestmentOn December 16, Ruffer Investment, UK based investment management fund bought $744 million into Bitcoin, indicating that they are hedging their much larger gold position
edit: 20210203 - their position is cut-down on half in BTC, same USD value, after having great gains during Januaryhttps://www.coindesk.com/ruffer-confirms-744m-bitcoin-investmentDecember 2020 - One RiverOne River announced that they bought over $600 million into BTC, and that they are planning to build up their position to $1 billion in near future, buying both BTC and ETH
https://news.bitcoin.com/1-billion-bitcoin-ether-one-river-hedge-fund-increase-holdings-600-million/https://www.coindesk.com/one-river-digital-alan-howard-crypto-fundDisclaimer: this is not an investment advise, just information list
20210114 - PayPal purchase added
20210203 - Ruffer sale activity added
20210208 - Tesla announced 1,5 billion USD holdings