NANOBIOTIX SA - ADR (NBTX) Institutional Shareholders
NANOBIOTIX SA - ADR (NBTX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $218.38M in NBTX holdings during the latest filing period.
Johnson & Johnson is currently the largest disclosed institutional shareholder of NBTX tracked by InsiderSet, reporting ownership valued at approximately $212.02M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $156.90M, representing an estimated loss of -25.99% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed NBTX value among the investors covered in this analysis. Major shareholders include Johnson & Johnson, Morgan Stanley, Jane Street Group, Llc, and several other long-term asset managers with concentrated positions in NANOBIOTIX SA - ADR (NBTX).
This page ranks the largest institutional NBTX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
19
Total Reported Value
$218.38M
Largest Holder
Johnson & Johnson
Largest Position
$212.02M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
23
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Johnson & Johnson | 26.55% | 5,623,816 | $212,017,863 | $156,904,466 | -$55,113,397 | -25.99% | |
| Morgan Stanley | 0.00% | 49,789 | $1,877,045 | $1,389,113 | -$487,932 | -25.99% | |
| Jane Street Group, Llc | 0.00% | 32,180 | $1,213,186 | $897,822 | -$315,364 | -25.99% | |
| Hrt Financial Lp | 0.00% | 27,332 | $1,030,000 | $762,563 | -$267,437 | -25.96% | |
| Xtx Topco Ltd | 0.01% | 15,855 | $597,734 | $442,355 | -$155,380 | -25.99% | |
| Optiver Holding B.V. | 0.01% | 13,631 | $513,889 | $380,305 | -$133,584 | -25.99% | |
| Marshall Wace, Llp | 0.00% | 10,044 | $378,659 | $280,228 | -$98,431 | -25.99% | |
| Citadel Advisors Llc | 0.00% | 6,042 | $227,783 | $168,572 | -$59,211 | -25.99% | |
| Bnp Paribas Financial Markets | 0.00% | 4,044 | $152,459 | $112,828 | -$39,631 | -25.99% | |
| Ubs Group Ag | 0.00% | 2,577 | $97,153 | $71,898 | -$25,255 | -25.99% | |
| Royal Bank Of Canada | 0.00% | 2,189 | $83,000 | $61,073 | -$21,927 | -26.42% | |
| Jpmorgan Chase & Co | 0.00% | 1,706 | $61,348 | $47,597 | -$13,751 | -22.41% | |
| Rhumbline Advisers | 0.00% | 1,502 | $56,622 | $41,906 | -$14,716 | -25.99% | |
| Gamma Investing Llc | 0.00% | 985 | $37,135 | $27,482 | -$9,654 | -26.00% | |
| Osaic Holdings, Inc. | 0.00% | 500 | $18,850 | $13,950 | -$4,900 | -25.99% | |
| Wells Fargo & Company/Mn | 0.00% | 200 | $7,540 | $5,580 | -$1,960 | -25.99% | |
| Stone House Investment Management, Llc | 0.00% | 76 | $2,865 | $2,120 | -$745 | -25.99% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 56 | $2,111 | $1,562 | -$549 | -25.99% | |
| National Bank Of Canada | 0.00% | 13 | $482 | $363 | -$119 | -24.75% |
Frequently asked questions about NBTX
Who are the largest institutional holders of NBTX?
The largest institutional holders of NBTX reported in the latest SEC Form 13F filings include Johnson & Johnson, Morgan Stanley, Jane Street Group, Llc, Hrt Financial Lp, and Xtx Topco Ltd. InsiderSet ranks institutional holders by their latest reported NBTX position.
What is NBTX institutional ownership?
This page tracks NBTX positions reported by institutional investment managers through SEC Form 13F. NANOBIOTIX SA - ADR (NBTX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own NBTX?
InsiderSet currently tracks 19 institutional managers reporting NBTX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of NBTX shareholders.
How much NBTX stock do institutions own?
Institutional investment managers disclosed approximately $218.38M in NBTX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was NBTX institutional ownership last updated?
The latest NBTX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional NBTX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its NBTX position after the reporting date.
Are institutions buying or selling NBTX?
Institutional buying and selling can be analyzed by comparing NBTX positions across consecutive 13F reporting periods. InsiderSet's NBTX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View NBTX ownership changes.
How has NBTX institutional ownership changed over time?
InsiderSet tracks NBTX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.