CLEARFIELD INC (CLFD) Institutional Shareholders
CLEARFIELD INC (CLFD) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $202.16M in CLFD holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of CLFD tracked by InsiderSet, reporting ownership valued at approximately $23.77M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $27.17M, representing an estimated gain of +14.32% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 62% of the total disclosed CLFD value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Ack Asset Management Llc, Mairs & Power Growth Fund, and several other long-term asset managers with concentrated positions in CLEARFIELD INC (CLFD).
This page ranks the largest institutional CLFD shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
117
Total Reported Value
$202.16M
Largest Holder
Blackrock, Inc.
Largest Position
$23.77M
Insider Transactions (90d)
8
Latest Filing Quarter
Q2 2026
New Institutional Positions
143
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 897,868 | $23,766,566 | $27,169,486 | +$3,402,920 | +14.32% | |
| Ack Asset Management Llc | 2.43% | 735,200 | $19,460,744 | $22,247,152 | +$2,786,408 | +14.32% | |
| Mairs & Power Growth Fund | Andrew R. Adams | 0.20% | 731,733 | $19,368,973 | $22,142,241 | +$2,773,268 | +14.32% |
| Vanguard Capital Management Llc | 0.00% | 509,836 | $13,495,359 | $15,427,637 | +$1,932,278 | +14.32% | |
| Vanguard Portfolio Management Llc | 0.00% | 355,753 | $9,416,782 | $10,765,086 | +$1,348,304 | +14.32% | |
| Dimensional Fund Advisors Lp | 0.00% | 353,486 | $9,357,399 | $10,696,486 | +$1,339,087 | +14.31% | |
| State Street Corp | 0.00% | 322,245 | $8,529,825 | $9,751,134 | +$1,221,309 | +14.32% | |
| Punch & Associates Investment Management, Inc. | 0.44% | 289,610 | $7,665,977 | $8,763,599 | +$1,097,622 | +14.32% | |
| Geode Capital Management, Llc | 0.00% | 285,841 | $7,568,271 | $8,649,549 | +$1,081,278 | +14.29% | |
| Royal Bank Of Canada | 0.00% | 282,350 | $7,474,000 | $8,543,911 | +$1,069,911 | +14.32% | |
| Royce & Associates Lp | 0.07% | 256,990 | $6,802,525 | $7,776,517 | +$973,992 | +14.32% | |
| Citadel Advisors Llc | 0.00% | 252,936 | $6,695,216 | $7,653,843 | +$958,627 | +14.32% | |
| Dana Investment Advisors, Inc. | 0.14% | 179,362 | $4,747,712 | $5,427,494 | +$679,782 | +14.32% | |
| Marshall Wace, Llp | 0.00% | 141,659 | $3,749,715 | $4,286,601 | +$536,886 | +14.32% | |
| D. E. Shaw & Co., Inc. | 0.00% | 140,972 | $3,731,529 | $4,265,813 | +$534,284 | +14.32% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 136,700 | $3,618,449 | $4,136,542 | +$518,093 | +14.32% |
| Northern Trust Corp | 0.00% | 121,950 | $3,228,017 | $3,690,207 | +$462,190 | +14.32% | |
| Bank Of America Corp | 0.00% | 115,156 | $3,048,179 | $3,484,621 | +$436,442 | +14.32% | |
| Charles Schwab Investment Management Inc | 0.00% | 93,717 | $2,480,689 | $2,835,876 | +$355,187 | +14.32% | |
| Trexquant Investment Lp | 0.02% | 90,956 | $2,407,605 | $2,752,329 | +$344,724 | +14.32% | |
| Tudor Investment Corp Et Al | 0.01% | 83,421 | $2,208,154 | $2,524,319 | +$316,165 | +14.32% | |
| Goldman Sachs Group Inc | 0.00% | 75,680 | $2,003,249 | $2,290,077 | +$286,828 | +14.32% | |
| Vanguard Fiduciary Trust Co | 0.00% | 75,020 | $1,985,779 | $2,270,105 | +$284,326 | +14.32% | |
| Russell Investments Group, Ltd. | 0.00% | 71,390 | $1,889,726 | $2,160,261 | +$270,535 | +14.32% | |
| Wealth Group Ltd | 0.36% | 47,000 | $1,870,130 | $1,422,220 | -$447,910 | -23.95% | |
| Ubs Group Ag | 0.00% | 70,386 | $1,863,118 | $2,129,880 | +$266,762 | +14.32% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 70,339 | $1,861,873 | $2,128,458 | +$266,585 | +14.32% | |
| Millennium Management Llc | 0.00% | 47,933 | $1,268,787 | $1,450,453 | +$181,666 | +14.32% | |
| Barclays Plc | 0.00% | 46,895 | $1,241,311 | $1,419,043 | +$177,732 | +14.32% | |
| Credit Agricole S A | 0.00% | 42,000 | $1,111,740 | $1,270,920 | +$159,180 | +14.32% | |
| Morgan Stanley | 0.00% | 41,428 | $1,096,606 | $1,253,611 | +$157,005 | +14.32% | |
| Qube Research & Technologies Ltd | 0.00% | 39,943 | $1,057,291 | $1,208,675 | +$151,384 | +14.32% | |
| American Century Companies Inc | 0.00% | 38,549 | $1,020,392 | $1,166,493 | +$146,101 | +14.32% | |
| Susquehanna International Group, Llp | 0.00% | 36,486 | $965,784 | $1,104,066 | +$138,282 | +14.32% | |
| Bank Of New York Mellon Corp | 0.00% | 33,899 | $897,306 | $1,025,784 | +$128,478 | +14.32% | |
| Principal Financial Group Inc | 0.00% | 32,824 | $868,851 | $993,254 | +$124,403 | +14.32% | |
| Campbell & Co Investment Adviser Llc | 0.04% | 19,421 | $772,762 | $587,679 | -$185,083 | -23.95% | |
| Invesco Ltd. | 0.00% | 29,130 | $771,072 | $881,474 | +$110,402 | +14.32% | |
| Exoduspoint Capital Management, Lp | 0.01% | 26,158 | $692,402 | $791,541 | +$99,139 | +14.32% | |
| Nuveen, Llc | 0.00% | 23,566 | $623,792 | $713,107 | +$89,315 | +14.32% | |
| Xtx Topco Ltd | 0.01% | 21,468 | $568,258 | $649,622 | +$81,364 | +14.32% | |
| Sequoia Financial Advisors | 0.00% | 14,270 | $567,804 | $431,810 | -$135,994 | -23.95% | |
| High Note Wealth, Llc | 0.08% | 12,375 | $492,401 | $374,468 | -$117,934 | -23.95% | |
| Nierenberg Investment Management Company, Llc | 0.22% | 16,510 | $437,020 | $499,593 | +$62,573 | +14.32% | |
| Rhumbline Advisers | 0.00% | 16,508 | $436,955 | $499,532 | +$62,577 | +14.32% | |
| Alliancebernstein L.P. | 0.00% | 14,974 | $436,492 | $453,113 | +$16,621 | +3.81% | |
| Entrypoint Capital, Llc | 0.12% | 15,447 | $408,882 | $467,426 | +$58,544 | +14.32% | |
| Mangrove Partners Im, Llc | 0.03% | 15,187 | $402,000 | $459,559 | +$57,559 | +14.32% | |
| Los Angeles Capital Management Llc | 0.00% | 15,002 | $397,103 | $453,961 | +$56,858 | +14.32% | |
| Linden Thomas Advisory Services, Llc | 0.03% | 9,612 | $382,461 | $290,859 | -$91,602 | -23.95% |
Frequently asked questions about CLFD
Who owns the most CLFD stock?
The largest holders of CLFD are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CLEARFIELD INC (CLFD).
Is CLFD widely held by superinvestors?
Many widely followed stocks like CLFD appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CLFD is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.