Nanobiotix
NBTX
11 hedge funds and large institutions have $107M invested in Nanobiotix in 2025 Q3 according to their latest regulatory filings, with 1 funds opening new positions, 0 increasing their positions, 4 reducing their positions, and 0 closing their positions.
317% more capital invested
Capital invested by funds: $25.6M → $107M (+$81.1M)
10% more funds holding
Funds holding: 10 → 11 (+1)
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.2% less ownership
Funds ownership: 11.98% → 11.77% (-0.2%)
100% less repeat investments, than reductions
Existing positions increased: 0 | Existing positions reduced: 4
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Optiver Holding
Amsterdam,
Netherlands
|
+$45.6K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
-$24.9K |
| 2 |
UBS Group
Zurich,
Switzerland
|
-$19.2K |
| 3 |
BNP Paribas Financial Markets
Paris,
France
|
-$3.07K |
| 4 |
EWA
EverSource Wealth Advisors
Birmingham,
Alabama
|
-$26 |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
JJ
1
Johnson & Johnson
New Brunswick,
New Jersey
| $106M | – | – | – |
|
2
Geode Capital Management
Boston,
Massachusetts
| $192K | – | – | – |
|
|
3
Optiver Holding
Amsterdam,
Netherlands
| $101K | +$45.6K | +5,356 | New |
|
|
4
Morgan Stanley
New York
| $44.9K | -$24.9K | -2,922 | -55% |
|
|
5
UBS Group
Zurich,
Switzerland
| $40.8K | -$19.2K | -2,257 | -51% |
|
|
EWA
6
EverSource Wealth Advisors
Birmingham,
Alabama
| $9.71K | -$26 | -3 | -0.6% |
|
|
7
BNP Paribas Financial Markets
Paris,
France
| $7.56K | -$3.07K | -361 | -47% |
|
8
Royal Bank of Canada
Toronto,
Ontario, Canada
| $2K | – | – | – |
|
9
RhumbLine Advisers
Boston,
Massachusetts
| $623 | – | – | – |
|
10
National Bank of Canada
Montreal,
Quebec, Canada
| $245 | – | – | – |
|
11
Barclays
London,
United Kingdom
| $76 | – | – | – |
|
NBTX Hedge Fund Activity: Q3 2025 in Review
11 of the 7,629 institutional investors tracked by Wall St. Rank reported a position in Nanobiotix (NBTX) for Q3 2025, worth a combined $107M — up 317% from $25.6M a quarter earlier.
Buyers outnumbered sellers: 1 fund opened new NBTX positions and 0 closed out — a net gain of 1 holder — while 0 added to existing stakes and 4 trimmed.
The largest buyer was Optiver Holding, opening a new position worth an estimated $45.6K. The largest seller was Morgan Stanley, cutting an estimated $24.9K.
- 11 institutional investors held Nanobiotix (NBTX) as of Q3 2025, up from 10 in Q2 2025.
- Funds reported $107M of Nanobiotix stock for Q3 2025, up 317% quarter-over-quarter.
- 1 fund opened new Nanobiotix positions in Q3 2025 and 0 closed out, a net change of +1 holder.
- The largest Nanobiotix buyer in Q3 2025 was Optiver Holding, an estimated $45.6K added.
- The largest Nanobiotix seller in Q3 2025 was Morgan Stanley, an estimated $24.9K sold.
Based on aggregated 13F filings for Q3 2025.