Nanobiotix S.A. (NBTX) — Institutional Holders, Q2 2026
19 institutional investment managers reported a NBTX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $218.4M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
NBTX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- JANE STREET GROUPNew · +32,180 sh+$1.2M
- HRT FINANCIALNew · +27,332 sh+$1.0M
- XTX Topco LtdNew · +15,855 sh+$597.7K
- MORGAN STANLEYAdded · +13,515 sh+$509.5K
- CITADEL ADVISORSNew · +6,042 sh+$227.8K
Biggest sellers
- UBS Group AGTrimmed · -2,980 sh-$112.3K
- EverSource Wealth AdvisorsSold out · -882 sh-$33.3K
- RHUMBLINE ADVISERSTrimmed · -779 sh-$29.4K
- Tower Research Capital (TRC)Sold out · -1 sh-$38.00
- CITIGROUPSold out · -1 sh-$38.00
NBTX 13F holders ranked 1–19 of 19
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | JOHNSON & JOHNSON#1 · 5,623,816 sh | 5,623,816 | $212.0M | — | 0.0% |
| 2 | MORGAN STANLEY#2 · 49,789 sh | 49,789 | $1.9M | <0.01% | +37.3% |
| 3 | JANE STREET GROUP#3 · 32,180 sh | 32,180 | $1.2M | <0.01% | New |
| 4 | HRT FINANCIAL#4 · 27,332 sh | 27,332 | $1.0M | <0.01% | New |
| 5 | XTX Topco Ltd#5 · 15,855 sh | 15,855 | $597.7K | <0.01% | New |
| 6 | Optiver Holding B.V.#6 · 13,631 sh | 13,631 | $513.9K | <0.01% | +1.0% |
| 7 | MARSHALL WACE, LLP#7 · 10,044 sh | 10,044 | $378.7K | <0.01% | +8.7% |
| 8 | CITADEL ADVISORS#8 · 6,042 sh | 6,042 | $227.8K | 0.00% | New |
| 9 | BNP PARIBAS FINANCIAL MARKETS#9 · 4,044 sh | 4,044 | $152.5K | <0.01% | +13.6% |
| 10 | UBS Group AG#10 · 2,577 sh | 2,577 | $97.2K | 0.00% | -53.6% |
| 11 | ROYAL BANK OF CANADA#11 · 2,189 sh | 2,189 | $83.0K | 0.00% | +19.9% |
| 12 | JPMORGAN CHASE#12 · 1,706 sh | 1,706 | $61.3K | 0.00% | New |
| 13 | RHUMBLINE ADVISERS#13 · 1,502 sh | 1,502 | $56.6K | 0.00% | -34.2% |
| 14 | GAMMA Investing#14 · 985 sh | 985 | $37.1K | — | +19.0% |
| 15 | OSAIC#15 · 500 sh | 500 | $18.9K | 0.00% | 0.0% |
| 16 | WELLS FARGO & COMPANY#16 · 200 sh | 200 | $7.5K | 0.00% | 0.0% |
| 17 | Stone House Investment Management#17 · 76 sh | 76 | $2.9K | — | New |
| 18 | Federation des caisses Desjardins du Quebec#18 · 56 sh | 56 | $2.1K | 0.00% | New |
| 19 | NATIONAL BANK OF CANADA#19 · 13 sh | 13 | $482.00 | 0.00% | 0.0% |
Funds that sold out of NBTX in Q2 2026 (3)
Held NBTX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| EverSource Wealth Advisors882 sh | 882 | $46.5K |
| Tower Research Capital (TRC)1 sh | 1 | $31.00 |
| CITIGROUP1 sh | 1 | $31.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.