Cellectis S.A. (CLLS) Ownership

NASDAQ: CLLSTop holders, insider trades and short interest.

CLLS ownership summary

as of October 17, 2026
Institutions
13.4%
of shares outstanding
Insiders
0.00%
of shares outstanding
Shares outstanding
72.7M
Float
48.6M
shares available to trade
Short interest
0.64%
351K shares short
Days to cover
1.91
short interest down 28.0% vs prior month
  • Institutions 13.43%
  • Other investors 86.57%

CLLS top institutional holders

20 largest
Cellectis S.A. top institutional holders
#Holder% of sharesSharesValueChangeReported
1B Group, Inc3.26%3.3M$3.4M—June 30, 2026
2Long Focus Capital Management, LLC2.72%2.7M$2.9M−2,245 (−0.1%)June 30, 2026
3UBS Asset Mgmt Americas Inc2.63%2.6M$2.8M−533,739 (−16.8%)June 30, 2026
4Delaware Management Holdings Inc0.23%227K$235,950—June 30, 2026
5BlackRock Inc0.22%225K$234,462−116,079 (−34.0%)June 30, 2026
6Morgan Stanley - Brokerage Accounts0.08%85K$88,873−1,321 (−1.5%)June 30, 2026
7LPL Financial Corp0.08%84K$87,792+70 (+0.1%)June 30, 2026
8Susquehanna International Group, LLP0.05%50K$52,471−15,489 (−23.5%)June 30, 2026
9BNP Paribas Arbitrage, SA0.04%40K$41,704−900 (−2.2%)June 30, 2026
10UBS Group AG0.03%34K$35,283+4,152 (+13.9%)June 30, 2026
11Delaney Dennis R0.02%24K$24,960—June 30, 2026
12Rhumbline Advisers0.01%14K$14,901−757 (−5.0%)June 30, 2026
13XTX Topco Ltd0.01%12K$12,773−3,987 (−24.5%)June 30, 2026
14HARBOUR INVESTMENTS, INC.<0.01%4,500$4,680—June 30, 2026
15NATIONAL BANK OF CANADA /FI/<0.01%3,600$3,744—June 30, 2026
16Wells Fargo & Co<0.01%3,150$3,276—June 30, 2026
17Royal Bank of Canada<0.01%1,558$1,620+1,558 (0.0%)June 30, 2026
18Atlantic Union Bankshares Corp<0.01%1,500$1,560—June 30, 2026
19Hanson Mcclain Inc<0.01%500$520—June 30, 2026
20POM Investment Strategies, LLC<0.01%495$515—June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 3 holders added 5,780 shares and 8 cut 675K.

CLLS top mutual fund and ETF holders

8 largest
Cellectis S.A. top fund holders
#Holder% of sharesSharesValueChangeReported
1UBS Lux Dgtl Hlth Eq Fd seeding P acc0.77%771K$801,682−257,941 (−25.1%)June 30, 2026
2iShares Biotechnology ETF0.24%246K$256,271−1,864 (−0.8%)September 30, 2026
3Nomura Healthcare Fund Class I0.23%227K$235,950—August 31, 2026
4Galileo - Biotech Innovation Fund S USD0.22%226K$235,114—March 31, 2026
5Ox Capital Dynamic Asia N USD Unhdgd Acc0.09%95K$99,104+95,292 (0.0%)January 31, 2026
6Prisma Cube0.03%30K$31,200—June 30, 2026
7P & S Renditefonds T0.01%15K$15,600—May 31, 2026
8Fidelity Nasdaq Composite Index<0.01%1,949$2,027—August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

CLLS shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns CLLS

Institutional investors own 13.4% of Cellectis's shares and insiders 0.00%. The largest holder is B Group, Inc with 3.26% of the shares (3.3M), as of June 30, 2026. Among the top 20 institutions, 3 added shares and 8 reduced their stake in the latest filings. Short interest is 0.64% of the float, or 1.91 days of average trading volume. The share count rose 242.2% since 2014.

Related: CLLS analyst forecast, CLLS key metrics. See the CLLS stock overview for the latest quote and news.

CLLS ownership FAQ

Who owns the most Cellectis stock?

The largest shareholders of Cellectis are B Group, Inc (3.26%), Long Focus Capital Management, LLC (2.72%), UBS Asset Mgmt Americas Inc (2.63%), Delaware Management Holdings Inc (0.23%), BlackRock Inc (0.22%).

What percentage of Cellectis is owned by institutions?

Institutions hold 13.4% of Cellectis's shares outstanding; insiders hold 0.00%.

Which funds own Cellectis?

The largest fund holders of Cellectis are UBS Lux Dgtl Hlth Eq Fd seeding P acc (0.77%), iShares Biotechnology ETF (0.24%), Nomura Healthcare Fund Class I (0.23%), Galileo - Biotech Innovation Fund S USD (0.22%), Ox Capital Dynamic Asia N USD Unhdgd Acc (0.09%).

What is Cellectis's short interest?

351K shares of Cellectis were sold short, 0.64% of the float; at the average daily volume it would take 1.91 days to cover.

How many shares of Cellectis are outstanding?

Cellectis has 72.7M shares outstanding, of which 48.6M are in the public float.

Biotechnology: ownership