Comparable stake leader
Tianyi Zhang
SEC ownership of electroCore, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001560258.
Disclosed value leader
Joseph P. Errico
Comparable rows
44/50
Latest evidence
28 May 2026
- Public ticker
- ECOR on Nasdaq
- Parsed ownership sources
- 13D/G, 3/4/5, and 13F
- Largest SEC-reported holder
- Tianyi Zhang
- Latest 13D/G holder
- Tianyi Zhang
- Latest parsed ownership date
- 28 May 2026
- Issuer CIK
- 0001560258
- Issuer location
- Rockaway, NJ
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of electroCore, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Tianyi Zhang
Disclosed value leader
Joseph P. Errico
Comparable rows
44/50
Latest evidence
28 May 2026
13D/G
3/4/5
13F
Lead comparable stake: 9.9%
6 rows are not safely comparable across share classes.
13D/G row: Tianyi Zhang
Showing 1-8 of 50 holder rows.
Quick read
Tianyi Zhang leads the comparable SEC ownership view at 9.9%.
44 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Tianyi Zhang's linked filing trail.
Comparable ownership
Top 5
Tianyi Zhang
9.9%
Hilve Holdings Ltd
6.4%
Charles S. Theofilos
6%
AWM Investment Company, Inc.
6%
MAZ Partners LP
1.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Tianyi Zhang |
13D/G
|
9.9%
|
—
734,638 shares
|
$0 | 15 May 2025 |
| Hilve Holdings Ltd |
13D/G
|
6.4%
|
—
517,522 shares
|
$0 | 31 Mar 2026 |
| Charles S. Theofilos |
3/4/5
13D/G
Former director · Theofilos Charles Steve
|
6%
from 13D/G
|
$2,831,616
859,357 shares
mixed-class rows
|
— | 24 Feb 2025 |
| AWM Investment Company, Inc. |
13D/G
|
6%
|
$2,520,045
509,100 shares
|
$0 | 30 Sep 2025 |
| MAZ Partners LP |
13D/G
|
1.6%
|
—
|
$0 | 13 May 2025 |
| Thomas J. Errico |
3/4/5
Director
|
4.2%
|
$2,156,825
360,071 shares
|
+$126,902 | 20 May 2026 |
| Daniel S. Goldberger |
3/4/5
Former Officer and Director
|
3.4%
|
$1,754,655
291,471 shares
|
-$87,683 | 10 Apr 2026 |
| Thomas M. Patton |
3/4/5
Director
|
1.2%
|
$709,195
102,782 shares
|
— | 02 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$66,295.
Buys
$135,972
Insiders: 2
Sells
$202,267
Insiders: 2
Net
-$66,295
Shares: -3,413
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 26,992
Shares: 30,405
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 9,992 | 25,739 | $59,852 | $176,256 | -$116,404 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 1,000 | 4,666 | $4,840 | $26,011 | -$21,171 |
| 9-12 | 16,000 | 0 | $71,280 | $0 | +$71,280 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-17 of 17 reporting-owner rows connected to electroCore, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
17
Largest Forms 3/4/5 holder
Joseph P. Errico
Net 12M change
-$66,295
Latest report
28 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Joseph P. Errico | Director | $15,136,492 | Mixed | 13 Dec 2022 | ||
| Charles S. Theofilos | Former director | $2,831,616 | Mixed | 24 Feb 2025 | ||
| Thomas J. Errico | Director | $2,156,825 | +$126,902 | +6.3% | Filing P/S | 20 May 2026 |
| Daniel S. Goldberger | Former Officer and Director | $1,754,655 | -$87,683 | -4.8% | Filing P/S | 10 Apr 2026 |
| Joshua S. Lev | CFO and Interim President | $764,001 | -$105,514 | -12% | Filing P/S | 28 May 2026 |
| Thomas M. Patton | Director | $709,195 | Mixed | 02 Sep 2025 | ||
| Julie Ann Goldstein | Director | $699,570 | Mixed | 02 Sep 2025 | ||
| John P. Gandolfo | Director | $607,876 | Mixed | 02 Sep 2025 | ||
| Patricia Wilber | Director | $499,042 | Mixed | 02 Sep 2025 | ||
| Trevor J. Moody | Director | $375,474 | Mixed | 02 Aug 2023 | ||
| Michael Fox | Chief Operating Officer | $313,950 | Mixed | 13 Apr 2026 | ||
| Elena Bonfiglioli | Director | $210,788 | Mixed | 10 Sep 2025 | ||
| James C. Theofilos | Director | $177,779 | Mixed | 01 Aug 2025 | ||
| Brian M. Posner | Chief Financial Officer | $124,638 | Mixed | 12 Jan 2024 | ||
| Michael G. Atieh | Director | Mixed | 11 Jun 2021 | |||
| Stephen Ondra | Director | Mixed | 11 Jun 2021 | |||
| F. Peter Cuneo | Director | Mixed | 03 Sep 2024 |
Recent insider transactions for electroCore, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Joshua S. Lev | ECOR | Common Stock | Sale | -7.28% | $60,003 | $9.00 | -6,667 | 84,889 | 28 May 2026 | Direct |
| Joshua S. Lev | ECOR | Common Stock | Sale | -3.17% | $19,500 | $6.50 | -3,000 | 91,556 | 22 May 2026 | Direct |
| Thomas J. Errico | ECOR | Common Stock | Purchase | 2.85% | $59,852 | $5.99 | 9,992 | 360,071 | 21 May 2026 | Direct |
| Thomas J. Errico | ECOR | Common Stock | Small acquisition under Rule 16a-6 | 8 | 350,079 | 20 May 2026 | Direct | |||
| Michael Fox | ECOR | Common Stock | Award | 70,000 | 70,000 | 13 Apr 2026 | Direct | |||
| Daniel S. Goldberger | ECOR | Common Stock | Sale | -5.23% | $96,753 | $6.02 | -16,072 | 291,471 | 10 Apr 2026 | Direct |
| Joshua S. Lev | ECOR | Common Stock | Award | 90.8% | 45,000 | 94,556 | 01 Apr 2026 | Direct | ||
| Thomas J. Errico | ECOR | Common Stock | Exercise of in-the-money or at-the-money derivative security | 13.6% | 42,055 | 350,071 | 19 Mar 2026 | Direct | ||
| Thomas J. Errico | ECOR | Warrants to Purchase Common Stock | Exercise of in-the-money or at-the-money derivative security | 42,055 | 0 | 19 Mar 2026 | Direct | |||
| Joshua S. Lev | ECOR | Common Stock | Award | 128.7% | 27,889 | 49,556 | 26 Jan 2026 | Direct | ||
| Daniel S. Goldberger | ECOR | Common Stock | Award | 15.8% | 46,375 | 338,940 | 26 Jan 2026 | Direct | ||
| Joshua S. Lev | ECOR | Common Stock | Sale | -10.3% | $12,625 | $5.05 | -2,500 | 21,667 | 04 Dec 2025 | Direct |
| Daniel S. Goldberger | ECOR | Common Stock | Purchase | 0.34% | $4,840 | $4.84 | 1,000 | 292,565 | 02 Dec 2025 | Direct |
| Joshua S. Lev | ECOR | Common Stock | Sale | -8.38% | $13,386 | $6.18 | -2,166 | 23,667 | 12 Nov 2025 | Direct |
| Elena Bonfiglioli | ECOR | Common Stock | Award | 30,549 | 30,549 | 10 Sep 2025 | Direct | |||
| Patricia Wilber | ECOR | Common Stock | Award | 35.7% | 19,011 | 72,325 | 02 Sep 2025 | Direct | ||
| Julie Ann Goldstein | ECOR | Common Stock | Award | 23.1% | 19,011 | 101,387 | 02 Sep 2025 | Direct | ||
| Thomas J. Errico | ECOR | Common Stock | Award | 9.46% | 26,615 | 308,016 | 02 Sep 2025 | Direct | ||
| John P. Gandolfo | ECOR | Common Stock | Award | 27.5% | 19,011 | 88,098 | 02 Sep 2025 | Direct | ||
| Thomas M. Patton | ECOR | Common Stock | Award | 22.7% | 19,011 | 102,782 | 02 Sep 2025 | Direct | ||
| Thomas J. Errico | ECOR | Common Stock | Purchase | 5.63% | $67,050 | $4.47 | 15,000 | 281,401 | 11 Aug 2025 | Direct |
| Daniel S. Goldberger | ECOR | Common Stock | Purchase | 0.34% | $4,230 | $4.23 | 1,000 | 291,565 | 11 Aug 2025 | Direct |
| James C. Theofilos | ECOR | Common Stock | Award | 1592.8% | 22,156 | 23,547 | 01 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.