SEC ownership of Clearfield, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000796505.

Comparable stake leader

Ronald G. Roth

Disclosed value leader

Ronald G. Roth

Comparable rows

50/50

Latest evidence

11 May 2026

Ownership snapshot 2 signals
Latest large-stake holder
Ronald G. Roth
Latest evidence date
11 May 2026
Issuer identity 2 identity fields
CIK
0000796505
Location
Brooklyn Park, MN

Ownership snapshot

Top shareholders of Clearfield, 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
Ronald G. Roth
Disclosed value leader
Ronald G. Roth
Comparable rows
50/50
Latest evidence
11 May 2026
3/4/5 13D/G 13F Lead comparable stake: 10% 13D/G row: Ronald G. Roth Showing 1-8 of 50 holder rows.

Quick read

Ronald G. Roth leads the comparable SEC ownership view at 10%.

50 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.

Comparable ownership Top 5
Ronald G. Roth 10%
MAIRS & POWER INC 6%
ACK Asset Management LLC 5.1%
Anis Khemakhem 0.19%
Donald R. Hayward 0.08%

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
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
13F 13D/G
Company
5.1%
from 13D/G
$19,460,744
735,200 shares
31 Mar 2026
Anis Khemakhem
3/4/5
Chief Commercial Officer
0.19%
$709,660
26,810 shares
06 May 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
Walter L. Jones Jr.
3/4/5
Director
0.06%
$399,806
8,682 shares
-$110,106 11 May 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.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$363,446.

Buys
$300,600
Insiders: 1
Sells
$664,046
Insiders: 3
Net
-$363,446
Shares: -5,986
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 10,000 Shares: 15,986
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 12,391 $0 $549,006 -$549,006
3-6 10,000 3,595 $300,600 $115,040 +$185,560
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-15 of 15 reporting-owner rows connected to Clearfield, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
15
Largest current holder
Ronald G. Roth
Net 12M change
-$363,446
Latest report
27 May 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Ronald G. Roth Director, 10%+ Owner $45,828,206 +$300,600 +0.66% Mixed 27 Feb 2026
Cheryl Beranek Chief Executive Officer, Director $25,102,050 -$438,900 -1.7% Filing P/S 27 May 2026
John P. Hill Chief Operating Officer $4,763,087 Mixed 31 Dec 2025
Charles N. Hayssen Director $4,711,057 Mixed 28 Feb 2025
Daniel R. Herzog Chief Financial Officer $2,108,331 Mixed 31 Dec 2025
Patrick Goepel Director $1,136,395 Mixed 23 Feb 2024
Roger G. Harding Director $884,719 Filing P/S 05 Mar 2024
Anis Khemakhem Chief Commercial Officer $709,660 Median 06 May 2026
Walter L. Jones Jr. Director $399,806 -$110,106 -22% Filing P/S 11 May 2026
Donald R. Hayward Director $347,840 -$115,040 -25% Filing P/S 19 Feb 2026
Carol A. Wirsbinski Director $302,606 Mixed 27 Feb 2026
Ademir Sarcevic Director $167,060 Mixed 27 Feb 2026
Catherine T. Kelly Director $167,060 Mixed 27 Feb 2026
Rebecca Seidel Director $90,175 Mixed 27 Feb 2026
Kathleen Skarvan Director $90,175 Mixed 27 Feb 2026

Recent insider transactions for Clearfield, 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
Cheryl Beranek CLFD Common Stock Sale -0.5% $125,000 $50.00 -2,500 502,041 27 May 2026 Direct
Cheryl Beranek CLFD Common Stock Sale -0.49% $112,550 $45.02 -2,500 504,541 11 May 2026 Direct
Walter L. Jones Jr. CLFD Common Stock Sale -21.6% $110,106 $46.05 -2,391 8,682 11 May 2026 Direct
Cheryl Beranek CLFD Common Stock Sale -0.98% $201,350 $40.27 -5,000 507,041 08 May 2026 Direct
Anis Khemakhem CLFD Common Stock Tax liability -2.31% -635 26,810 06 May 2026 Direct
Carol A. Wirsbinski CLFD Common Stock Award 35.9% 2,544 9,631 27 Feb 2026 Direct
Catherine T. Kelly CLFD Common Stock Award 91.7% 2,544 5,317 27 Feb 2026 Direct
Walter L. Jones Jr. CLFD Common Stock Award 29.8% 2,544 11,073 27 Feb 2026 Direct
Ademir Sarcevic CLFD Common Stock Award 91.7% 2,544 5,317 27 Feb 2026 Direct
Kathleen Skarvan CLFD Common Stock Award 780.4% 2,544 2,870 27 Feb 2026 Direct
Ronald G. Roth CLFD Common Stock Award 0.2% 2,544 1,281,808 27 Feb 2026 Direct
Rebecca Seidel CLFD Common Stock Award 780.4% 2,544 2,870 27 Feb 2026 Direct
Donald R. Hayward CLFD Common Stock Sale -24.8% $115,040 $32.00 -3,595 10,870 19 Feb 2026 Direct
Anis Khemakhem CLFD Common Stock (ESPP) Award 0.48% 131 27,445 31 Dec 2025 Direct
Cheryl Beranek CLFD Common Stock (ESPP) Award 0.04% 210 512,041 31 Dec 2025 Direct
John P. Hill CLFD Common Stock (ESPP) Award 0.12% 222 192,215 31 Dec 2025 Direct
Daniel R. Herzog CLFD Common Stock (ESPP) Award 0.1% 88 85,082 31 Dec 2025 Direct
Ronald G. Roth CLFD Common Stock Purchase 0.79% $300,600 $30.06 10,000 1,279,264 15 Dec 2025 Direct
Cheryl Beranek CLFD Common Stock Gift -0.38% -1,960 511,831 11 Dec 2025 Direct
Rebecca Seidel CLFD Common Stock Award 326 326 10 Dec 2025 Direct
Kathleen Skarvan CLFD Common Stock Award 326 326 10 Dec 2025 Direct
Daniel R. Herzog CLFD Restricted Stock Award 15.6% 11,495 84,994 28 Nov 2025 Direct
John P. Hill CLFD Restricted Stock Award 9.73% 17,030 191,993 28 Nov 2025 Direct
Cheryl Beranek CLFD Restricted Stock Award 5.23% 25,545 513,791 28 Nov 2025 Direct
John P. Hill CLFD Common Stock Tax liability -1.49% -2,653 174,963 20 Nov 2025 Direct
John P. Hill CLFD Restricted Stock Award 6.47% 10,788 177,616 20 Nov 2025 Direct
John P. Hill CLFD Common Stock Award 3.34% 5,393 166,828 20 Nov 2025 Direct
Daniel R. Herzog CLFD Common Stock Tax liability -1.11% -824 73,499 20 Nov 2025 Direct
Daniel R. Herzog CLFD Restricted Stock Award 7.83% 5,394 74,323 20 Nov 2025 Direct
Daniel R. Herzog CLFD Common Stock Award 4.07% 2,696 68,929 20 Nov 2025 Direct
Cheryl Beranek CLFD Common Stock Tax liability -0.54% -2,653 488,246 20 Nov 2025 Direct
Cheryl Beranek CLFD Restricted Stock Award 2.25% 10,788 490,899 20 Nov 2025 Direct
Cheryl Beranek CLFD Common Stock Award 1.14% 5,393 480,111 20 Nov 2025 Direct
Daniel R. Herzog CLFD Common Stock Tax liability -3.37% -2,308 66,233 16 Nov 2025 Direct
Cheryl Beranek CLFD Common Stock Tax liability -1.1% -5,286 474,718 16 Nov 2025 Direct
John P. Hill CLFD Common Stock Tax liability -3.4% -5,690 161,435 16 Nov 2025 Direct
John P. Hill CLFD Common Stock Tax liability -14.9% -27,395 156,520 18 Sep 2025 Direct
John P. Hill CLFD Common Stock Options Exercise 30.1% 41,776 180,520 18 Sep 2025 Direct
John P. Hill CLFD Employee Stock Option (Right to buy) Options Exercise 41,776 32,797 18 Sep 2025 Direct
Daniel R. Herzog CLFD Common Stock Tax liability -20.4% -16,238 63,326 12 Sep 2025 Direct
Daniel R. Herzog CLFD Common Stock Options Exercise 46.2% 23,795 75,326 12 Sep 2025 Direct
Daniel R. Herzog CLFD Employee Stock Option (Right to buy) Options Exercise 23,795 17,632 12 Sep 2025 Direct
Cheryl Beranek CLFD Common Stock Tax liability -5.65% -28,121 469,700 08 Aug 2025 Direct
Cheryl Beranek CLFD Common Stock Options Exercise 9.24% 41,776 493,700 08 Aug 2025 Direct
Cheryl Beranek CLFD Employee Stock Option (Right to buy) Options Exercise 41,776 32,797 08 Aug 2025 Direct
John P. Hill CLFD Common Stock (ESPP) Award 0.33% 498 152,744 30 Jun 2025 Direct
Daniel R. Herzog CLFD Common Stock (ESPP) Award 1.13% 683 60,984 30 Jun 2025 Direct
Cheryl Beranek CLFD Common Stock (ESPP) Award 0.04% 197 466,349 30 Jun 2025 Direct
* marks a reported price that did not pass the local price check.
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