Security key
28531P202
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 935,793
- Total 13F value
- $4,197,181
- Share change
- +207,538
- SEC-reported price per share
- $4.48
- Number of holders
- 30
- Value change
- +$929,727
- Number of buys
- 12
- Number of sells
- 10
- Shares outstanding
- 8,485,000
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
30
Top holders
10
ECOR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
electroCore, Inc. SEC filings
electroCore, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 28531P202
Recent filing periods:
Ownership snapshot
Top reported holders of ECOR - electroCore, Inc. - Common Stock (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
Charles S. Theofilos
Comparable rows
15/15
Latest evidence
30 Sep 2025
13D/G
3/4/5
13F
Lead comparable stake: 9.9%
13D/G row: Tianyi Zhang
Showing 1-6 of 15 holder rows.
Quick read
Tianyi Zhang leads the comparable SEC ownership view at 9.9%.
15 of 15 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%
Charles S. Theofilos
6%
AWM Investment Company, Inc.
6%
MAZ Partners LP
1.6%
Thomas M. Patton
1.2%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Tianyi Zhang |
13D/G
|
9.9%
|
—
734,638 shares
|
$0 | 15 May 2025 |
| 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 M. Patton |
3/4/5
Director
|
1.2%
|
$709,195
102,782 shares
|
— | 02 Sep 2025 |
| John P. Gandolfo |
3/4/5
Director
|
1%
|
$607,876
88,098 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.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
30
Shares
935,793
Rows available
30
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
30
Q4 2025 holders
30
Holder diff
0
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend