Fund moves
14.6%Stake
A Schedule 13D means the holder owns more than 5% and keeps the option to push for changes: board seats, a sale, buybacks. It must be filed within 5 business days.
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Traded Oct 30, 2026 · Filed Nov 3, 2026
A Bambusa Therapeutics director paid $3.94M out of pocket for Bambusa Therapeutics shares. 2 other people at Bambusa Therapeutics bought some too, in the same month.
Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell.
open market purchase
Code P — open-market or private purchase
~$3,937,552
Shares × reported transaction price
$1M+
Not enough history to judge
Confirmed open-market purchases by the same insider in the available history
3 distinct insiders in 30 days
Distinct insiders at the same issuer with confirmed open-market purchases
None found in footnotes
Only flagged when a footnote says so; never inferred
| After | Stock | S&P 500 | Difference |
|---|---|---|---|
| 7 days | +6.8% | −0.9% | +7.7% |
Past results only. Not a forecast.
Fund moves
A Schedule 13D means the holder owns more than 5% and keeps the option to push for changes: board seats, a sale, buybacks. It must be filed within 5 business days.
Fund moves
A Schedule 13G is filed by holders above 5% who say they will not try to influence the company. Index funds and large asset managers file most of them.
Insider buying
Traded Oct 30 · filed 4 days later
A Bambusa Therapeutics director paid $2.7M out of pocket for Bambusa Therapeutics shares. 2 other people at Bambusa Therapeutics bought some too, in the same month.
RA CAPITAL MANAGEMENT, L.P., Director's past purchases, 90 days after disclosure: 10 buys, median −6.9 pts vs S&P 500, beat it 5 of 10 times. Past results, not a forecast.
Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.