Security key
18482P103
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 8,217,279
- Total 13F value
- $217,602,920
- Share change
- -311,064
- Put/Call ratio
- 123%
- SEC-reported price per share
- $26.47
- Number of holders
- 124
- Value change
- -$10,157,190
- Number of buys
- 52
- Number of sells
- 57
- Shares outstanding
- 13,925,490
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
124
Top holders
10
CLFD full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
Clearfield, Inc. SEC filings
Clearfield, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 18482P103
Recent filing periods:
Ownership snapshot
Top reported holders of CLFD - Clearfield, 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
Ronald G. Roth
Disclosed value leader
Ronald G. Roth
Comparable rows
15/15
Latest evidence
27 Feb 2026
3/4/5
13D/G
13F
Lead comparable stake: 10%
13D/G row: Ronald G. Roth
Showing 1-6 of 15 holder rows.
Quick read
Ronald G. Roth leads the comparable SEC ownership view at 10%.
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 Ronald G. Roth's linked filing trail.
Comparable ownership
Top 5
Ronald G. Roth
10%
MAIRS & POWER INC
6%
ACK Asset Management LLC
5.1%
Donald R. Hayward
0.08%
Carol A. Wirsbinski
0.07%
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 |
|---|---|---|---|---|---|
| Ronald G. Roth |
3/4/5
13D/G
Director, 10%+ Owner
|
10%
from 13D/G
|
$45,828,206
1,458,568 shares
|
+$300,600 | 27 Feb 2026 |
| MAIRS & POWER INC |
13D/G
13F
Mairs and Power, Inc. · Company
|
6%
|
$24,834,711
852,255 shares
|
$0 | 31 Mar 2025 |
| ACK Asset Management LLC |
13D/G
13F
Company
|
5.1%
|
$18,798,994
710,200 shares
|
+$608,810 | 20 Feb 2026 |
| Donald R. Hayward |
3/4/5
Director
|
0.08%
|
$347,840
10,870 shares
|
-$115,040 | 19 Feb 2026 |
| Carol A. Wirsbinski |
3/4/5
Director
|
0.07%
|
$302,606
9,631 shares
|
— | 27 Feb 2026 |
| Ademir Sarcevic |
3/4/5
Director
|
0.04%
|
$167,060
5,317 shares
|
— | 27 Feb 2026 |
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 Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
124
Shares
8,217,279
Rows available
124
| 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 Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
125
Q1 2026 holders
124
Holder diff
-1
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend