electroCore, Inc. (ECOR) Ownership
ECOR ownership summary
as of October 18, 2026- Institutions
- 11.9% of shares outstanding
- Insiders
- 34.19% of shares outstanding
- Shares outstanding
- 9.0M
- Float
- 6.0M shares available to trade
- Short interest
- 3.64% 314K shares short
- Days to cover
- 3.69 short interest down 2.5% vs prior month
- Institutions 11.93%
- Insiders 34.19%
- Other investors 53.89%
ECOR top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard Capital Management, LLC | 2.35% | 212K | $1.7M | +8,995 (+4.4%) | June 30, 2026 |
| 2 | FourWorld Capital Management LLC | 1.04% | 94K | $737,900 | +94,000 (0.0%) | June 30, 2026 |
| 3 | Wexford Capital LP | 1.02% | 92K | $722,671 | +92,060 (0.0%) | June 30, 2026 |
| 4 | Geode Capital Management, LLC | 0.81% | 73K | $574,220 | −4,934 (−6.3%) | June 30, 2026 |
| 5 | Northern Trust Corp | 0.74% | 67K | $522,072 | +55,389 (+498.2%) | June 30, 2026 |
| 6 | Jane Street Group LLC | 0.70% | 63K | $497,706 | +63,402 (0.0%) | June 30, 2026 |
| 7 | JAFFETILCHIN INVESTMENT PARTNERS, LLC | 0.65% | 58K | $456,854 | +5,835 (+11.1%) | March 31, 2026 |
| 8 | Sontag Advisory LLC | 0.53% | 47K | $372,859 | — | June 30, 2026 |
| 9 | Citadel Advisors Llc | 0.49% | 44K | $343,854 | +43,803 (0.0%) | June 30, 2026 |
| 10 | Marshall Wace Asset Management Ltd | 0.48% | 44K | $342,825 | +43,672 (0.0%) | June 30, 2026 |
| 11 | Vanguard Fiduciary Trust Co | 0.43% | 39K | $304,344 | +242 (+0.6%) | June 30, 2026 |
| 12 | International Assets Investment Management, LLC | 0.40% | 36K | $284,720 | −10,350 (−22.2%) | June 30, 2026 |
| 13 | HighTower Advisors, LLC | 0.39% | 35K | $277,435 | — | June 30, 2026 |
| 14 | BlackRock Inc | 0.35% | 32K | $249,442 | +5,000 (+18.7%) | June 30, 2026 |
| 15 | State Street Corp | 0.29% | 27K | $208,166 | — | June 30, 2026 |
| 16 | Emerald Investment Partners, LLC | 0.29% | 26K | $203,927 | — | June 30, 2026 |
| 17 | BRC Group Holdings Inc | 0.28% | 25K | $197,066 | +25,104 (0.0%) | June 30, 2026 |
| 18 | Bridgeway Capital Management, LLC | 0.28% | 25K | $196,250 | +25,000 (0.0%) | June 30, 2026 |
| 19 | Renaissance Technologies Corp | 0.22% | 20K | $156,215 | −24,509 (−55.2%) | June 30, 2026 |
| 20 | TOBIAS FINANCIAL ADVISORS, INC. | 0.11% | 10K | $78,500 | — | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 463K shares and 3 cut 40K.
ECOR top mutual fund and ETF holders
11 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 1.56% | 141K | $1.1M | — | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.36% | 32K | $252,425 | −173 (−0.5%) | August 31, 2026 |
| 3 | Bridgeway Ultra-Small Company | 0.28% | 25K | $196,250 | +25,000 (0.0%) | June 30, 2026 |
| 4 | Abante Quant Value FI | 0.27% | 25K | $193,589 | — | August 31, 2026 |
| 5 | iShares Micro-Cap ETF | 0.22% | 19K | $152,887 | −134 (−0.7%) | September 30, 2026 |
| 6 | Fidelity Total Market Index | 0.11% | 10K | $79,952 | +1,450 (+16.6%) | August 31, 2026 |
| 7 | Fidelity Series Total Market Index | 0.10% | 8,975 | $70,454 | — | August 31, 2026 |
| 8 | Fidelity Nasdaq Composite Index | 0.04% | 3,716 | $29,171 | −6,187 (−62.5%) | August 31, 2026 |
| 9 | Vanguard Balanced Index Inv | 0.03% | 2,537 | $19,915 | — | August 31, 2026 |
| 10 | Vanguard U.S. Eq Idx £ Acc | 0.02% | 1,771 | $13,902 | — | August 31, 2026 |
| 11 | 1290 VT Micro Cap K | 0.01% | 1,200 | $9,420 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
ECOR insider transactions
latest 8| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-10 | Daniel S Goldberger | Sell | $6.02 | 16,072 | $96,753 |
| 2025-12-04 | Joshua S Lev | Sell | $5.05 | 2,500 | $12,625 |
| 2025-12-02 | Daniel S Goldberger | Buy | $4.84 | 1,000 | $4,840 |
| 2025-11-12 | Joshua S Lev | Sell | $6.18 | 2,166 | $13,386 |
| 2025-08-11 | Daniel S Goldberger | Buy | $4.23 | 1,000 | $4,230 |
| 2025-08-11 | Thomas J Errico | Buy | $4.47 | 15,000 | $67,050 |
| 2025-05-23 | John P Gandolfo | Buy | $5.01 | 1,800 | $9,018 |
| 2025-05-12 | Thomas J Errico | Buy | $4.77 | 10,000 | $47,700 |
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.
ECOR shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns ECOR
Institutional investors own 11.9% of electroCore's shares and insiders 34.19%. The largest holder is Vanguard Capital Management, LLC with 2.35% of the shares (212K), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 3 reduced their stake in the latest filings. Short interest is 3.64% of the float, or 3.69 days of average trading volume. The share count fell 20.0% since 2016.
Related: ECOR analyst forecast, ECOR key metrics. See the ECOR stock overview for the latest quote and news.
ECOR ownership FAQ
Who owns the most electroCore stock?
The largest shareholders of electroCore are Vanguard Capital Management, LLC (2.35%), FourWorld Capital Management LLC (1.04%), Wexford Capital LP (1.02%), Geode Capital Management, LLC (0.81%), Northern Trust Corp (0.74%).
What percentage of electroCore is owned by institutions?
Institutions hold 11.9% of electroCore's shares outstanding; insiders hold 34.19%.
Which funds own electroCore?
The largest fund holders of electroCore are Vanguard MStar Total Stk Mkt Idx Invest (1.56%), Fidelity Extended Market Index (0.36%), Bridgeway Ultra-Small Company (0.28%), Abante Quant Value FI (0.27%), iShares Micro-Cap ETF (0.22%).
What is electroCore's short interest?
314K shares of electroCore were sold short, 3.64% of the float; at the average daily volume it would take 3.69 days to cover.
Are insiders buying or selling electroCore?
Of the latest 8 reported insider transactions in electroCore (since May 12, 2025), 5 were purchases and 3 were sales.
How many shares of electroCore are outstanding?
electroCore has 9.0M shares outstanding, of which 6.0M are in the public float.