BH has done this before and it's because the SEC requires reporting within a certain time period.I think its more, and we don’t know this, but BH has reporting requirements depending on position size or conflicts, that they must report to the SEC, and the agreement that they have reached for whatever reason WITH the SEC is that the SEC doesn’t report this reporting. Frankly, I don’t know how this works since well, that’s sort of why we HAVE the SEC and reporting standards.
13F- funds of $100M in assets and greater must file quarterly reports or holdings
13g- within 10 days file a 13g if ownership of a company exceeds 5%
If BH starts purchasing a company stock near their next 13f filing they may not have enough time to purchase what they want over a period of time and people will, and have, front run them upon discovery.
I'd say BH buying Tesla has a non zero chance of being true, but I highly doubt it will be the case.