Sintx Technologies, Inc. (SINT) Ownership

NASDAQ: SINTTop holders, insider trades and short interest.

SINT ownership summary

as of October 17, 2026
Institutions
12.8%
of shares outstanding
Insiders
19.52%
of shares outstanding
Shares outstanding
7.6M
Float
5.5M
shares available to trade
Short interest
1.59%
100K shares short
Days to cover
2.77
short interest up 3.0% vs prior month
  • Institutions 12.83%
  • Insiders 19.52%
  • Other investors 67.65%

SINT top institutional holders

20 largest
Sintx Technologies, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Bleichroeder LP7.85%523K$910,043+523,013 (0.0%)June 30, 2026
2Stonepine Capital Management Llc3.14%209K$364,017+209,205 (0.0%)June 30, 2026
3Veracity Capital LLC1.15%77K$133,413—June 30, 2026
4Citadel Advisors Llc0.48%32K$55,558+31,930 (0.0%)June 30, 2026
5Geode Capital Management, LLC0.45%30K$52,376−2,043 (−6.4%)June 30, 2026
6Vanguard Fiduciary Trust Co0.35%24K$40,944—June 30, 2026
7Vanguard Capital Management, LLC0.31%21K$36,375—June 30, 2026
8State Street Corp0.20%13K$23,145—June 30, 2026
9HRT FINANCIAL LLC0.19%13K$22,326+12,831 (0.0%)June 30, 2026
10UBS Group AG0.18%12K$20,743+6,968 (+140.7%)June 30, 2026
11Virtus Wealth Solutions LLC0.15%10K$17,400—June 30, 2026
12Tower Research Capital LLC0.04%2,850$4,959+1,683 (+144.2%)June 30, 2026
13SignatureFD, LLC0.03%1,717$2,988+572 (+50.0%)June 30, 2026
14Royal Bank of Canada<0.01%39$68—June 30, 2026
15SBI Securities Co Ltd<0.01%14$24—June 30, 2026
16Hanson Mcclain Inc0.00%1$2—June 30, 2026
17Morgan Stanley - Brokerage Accounts0.00%1$2−17 (−94.4%)June 30, 2026
18Cornerstone Planning Group LLC0.00%1$2—June 30, 2026
19Advisor Group Holdings, Inc.0.00%1$2−1 (−50.0%)June 30, 2026
20NATIONAL BANK OF CANADA /FI/0.00%1$2—June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 786K shares and 3 cut 2,061.

SINT top mutual fund and ETF holders

3 largest
Sintx Technologies, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Fidelity Extended Market Index0.25%17K$29,056−90 (−0.5%)August 31, 2026
2Fidelity Series Total Market Index0.06%4,288$7,461—August 31, 2026
3Fidelity Total Market Index0.03%1,861$3,238—August 31, 2026

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

SINT insider transactions

latest 12
Sintx Technologies, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-03-02Christopher Michael LyonsBuy$2.907,534$21,849
2026-02-25Christopher Michael LyonsBuy$2.96758$2,244
2026-02-23Jay M MoyesBuy$2.911,000$2,910
2026-02-18Mark Lewis AndersonBuy$3.023,000$9,060
2025-12-08Gregg R HonigblumBuy$4.268,200$34,932
2025-12-05Gregg R HonigblumBuy$3.9365,000$255,450
2025-11-07Gregg R HonigblumBuy$3.1910,000$31,900
2025-10-20Eric K OlsonBuy$3.405,800$19,720
2025-08-26Gregg R HonigblumBuy$3.7050,000$185,000
2025-08-26Jay M MoyesBuy$3.593,000$10,770
2025-08-22Eric K OlsonBuy$3.5810,475$37,500
2025-06-18Mark Lewis AndersonBuy$3.3010,000$33,000

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

SINT shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns SINT

Institutional investors own 12.8% of Sintx Technologies's shares and insiders 19.52%. The largest holder is Bleichroeder LP with 7.85% of the shares (523K), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 3 reduced their stake in the latest filings. Short interest is 1.59% of the float, or 2.77 days of average trading volume. The share count rose 924,400.0% since 2015.

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

SINT ownership FAQ

Who owns the most Sintx Technologies stock?

The largest shareholders of Sintx Technologies are Bleichroeder LP (7.85%), Stonepine Capital Management Llc (3.14%), Veracity Capital LLC (1.15%), Citadel Advisors Llc (0.48%), Geode Capital Management, LLC (0.45%).

What percentage of Sintx Technologies is owned by institutions?

Institutions hold 12.8% of Sintx Technologies's shares outstanding; insiders hold 19.52%.

Which funds own Sintx Technologies?

The largest fund holders of Sintx Technologies are Fidelity Extended Market Index (0.25%), Fidelity Series Total Market Index (0.06%), Fidelity Total Market Index (0.03%).

What is Sintx Technologies's short interest?

100K shares of Sintx Technologies were sold short, 1.59% of the float; at the average daily volume it would take 2.77 days to cover.

Are insiders buying or selling Sintx Technologies?

Of the latest 12 reported insider transactions in Sintx Technologies (since June 18, 2025), 12 were purchases and 0 were sales.

How many shares of Sintx Technologies are outstanding?

Sintx Technologies has 7.6M shares outstanding, of which 5.5M are in the public float.

Medical Devices: ownership