Nanobiotix NBTX Institutional Ownership

NASDAQ NBTX

$36.64 -1.55 (-4.06%)

At close: Sep 9, 2026 · 4:00 PM EDT

Institutions by Trading Activity

19 Institutions

Increased 13 68.4%

Unchanged 4 21.1%

Reduced 2 10.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

12.11%

▲+0.20 pp QoQ

Shares Held by Institutions

5.79Mn

of 47.82Mn outstanding

▲+1.67% QoQ

Shares Outstanding

47.82Mn

42.03Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+4 vs prior quarter

Net Shares Added (QoQ)

+94.94K

accumulated since last quarter

Value of Holdings

$224.75Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Nanobiotix S.A. (NASDAQ:NBTX) showed up in the 13F filings of 19 institutional investors as of June 2026.

These investors held 12.1% of outstanding shares in June 2026, up from 11.9% in March 2026.
Their total shares held in NBTX increased 1.67% quarter over quarter, and separately, investors owning Nanobiotix increased 90.0% from a year ago.
Activity in NBTX broke down as 13 buyers, 2 sellers, and 4 unchanged among 19 total holders.
Altogether, these fund groups held 5.79Mn shares in NBTX by June 2026, up by 94.94K shares quarter on quarter, and up 152.51K shares year over year.
Johnson & Johnson is the top holder of Nanobiotix as of June 30, 2026, with 5.62Mn shares representing 11.76% of outstanding stock.
The largest buyers of Nanobiotix for the quarter ending June 2026 were JANE STREET GROUP, LLC (32.18K), HRT FINANCIAL LP (27.33K), XTX Topco Ltd (15.86K), Morgan Stanley (13.52K), CITADEL ADVISORS LLC (6.04K).
The biggest sellers of Nanobiotix for the quarter ending June 2026 included UBS Group AG (2.98K), RHUMBLINE ADVISERS (779).
Nanobiotix's 10 largest shareholders as of June 2026 include Johnson & Johnson (5.62Mn), Morgan Stanley (49.79K), JANE STREET GROUP, LLC (32.18K), HRT FINANCIAL LP (27.33K), XTX Topco Ltd (15.86K), Optiver Holding B.V. (13.63K), MARSHALL WACE, LLP (10.04K), CITADEL ADVISORS LLC (6.04K), BNP PARIBAS FINANCIAL MARKETS (4.04K), UBS Group AG (2.58K) per Business Quant data.

Form 13F Holdings

19 Institutional Holders

Report period 30 Jun, 2026

Total shares held 5.79Mn

Of outstanding 12.11%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Johnson & Johnson	0000200406	5,623,816	11.76%	0	0.00%	$212.02Mn
2	Morgan Stanley	0000895421	49,789	0.10%	▲13,515	+37.26%	$1.88Mn
3	JANE STREET GROUP, LLC	0001595888	32,180	0.07%	▲32,180	0.00%	$1.21Mn
4	HRT FINANCIAL LP	0001475597	27,332	0.06%	▲27,332	0.00%	$1.03K
5	XTX Topco Ltd	0001828301	15,855	0.03%	▲15,855	0.00%	$597.73K
6	Optiver Holding B.V.	0001859606	13,631	0.03%	▲130	+0.96%	$513.89K
7	MARSHALL WACE, LLP	0001318757	10,044	0.02%	▲805	+8.71%	$378.66K
8	CITADEL ADVISORS LLC	0001423053	6,042	0.01%	▲6,042	0.00%	$227.78K
9	BNP PARIBAS FINANCIAL MARKETS	0001166588	4,044	0.01%	▲485	+13.63%	$152.46K
10	UBS Group AG	0001610520	2,577	0.01%	▼2,980	-53.63%	$97.15K
11	Royal Bank Of Canada	0001000275	2,189	0.00%	▲364	+19.95%	$83.00K
12	Jpmorgan Chase & Co	0000019617	1,706	0.00%	▲1,706	0.00%	$61.35K
13	RHUMBLINE ADVISERS	0001115418	1,502	0.00%	▼779	-34.15%	$56.62K
14	GAMMA Investing LLC	0002010235	985	0.00%	▲157	+18.96%	$37.14K
15	OSAIC HOLDINGS, INC.	0001677044	500	0.00%	0	0.00%	$18.85K
16	Wells Fargo & Company/Mn	0000072971	200	0.00%	0	0.00%	$7.54K
17	Stone House Investment Management, LLC	0001696497	76	0.00%	▲76	0.00%	$2.87K
18	Federation des caisses Desjardins du Quebec	0002022297	56	0.00%	▲56	0.00%	$2.11K
19	NATIONAL BANK OF CANADA /FI/	0000926171	13	0.00%	0	0.00%	$482