INSTEEL INDUSTRIES INC (IIIN) Top Institutional Shareholders
INSTEEL INDUSTRIES INC (IIIN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $516.90M in IIIN holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of IIIN tracked by InsiderSet, reporting ownership valued at approximately $95.75M 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 $81.62M, representing an estimated loss of -14.76% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 56% of the total disclosed IIIN value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Mirae Asset Global Etfs Holdings Ltd., Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in INSTEEL INDUSTRIES INC (IIIN).
This page ranks the largest institutional IIIN 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
198
Total Reported Value
$516.90M
Largest Holder
Blackrock, Inc.
Largest Position
$95.75M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
163
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 2,848,773 | $95,747,263 | $81,617,346 | -$14,129,917 | -14.76% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.05% | 1,105,053 | $37,139,573 | $31,659,768 | -$5,479,805 | -14.75% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,087,782 | $36,559,194 | $31,164,954 | -$5,394,240 | -14.75% | |
| Vanguard Capital Management Llc | 0.00% | 815,821 | $27,419,744 | $23,373,272 | -$4,046,472 | -14.76% | |
| State Street Corp | 0.00% | 725,492 | $24,383,786 | $20,785,346 | -$3,598,440 | -14.76% | |
| Geode Capital Management, Llc | 0.00% | 496,243 | $16,681,613 | $14,217,362 | -$2,464,251 | -14.77% | |
| Vanguard Portfolio Management Llc | 0.00% | 432,979 | $14,552,424 | $12,404,848 | -$2,147,576 | -14.76% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.02% | 380,954 | $12,803,864 | $10,914,332 | -$1,889,532 | -14.76% |
| Charles Schwab Investment Management Inc | 0.00% | 350,022 | $11,764,239 | $10,028,130 | -$1,736,109 | -14.76% | |
| Bruce & Co., Inc. | 3.33% | 343,423 | $11,642,447 | $9,839,069 | -$1,803,378 | -15.49% | |
| Robotti Robert | 1.56% | 297,810 | $10,009,394 | $8,532,257 | -$1,477,138 | -14.76% | |
| Bank Of New York Mellon Corp | 0.00% | 264,069 | $8,875,369 | $7,565,577 | -$1,309,792 | -14.76% | |
| Oppenheimer & Co Inc | 0.10% | 255,901 | $8,600,833 | $7,331,564 | -$1,269,269 | -14.76% | |
| Citadel Advisors Llc | 0.01% | 246,767 | $8,293,839 | $7,069,875 | -$1,223,964 | -14.76% | |
| Cerity Partners Llc | 0.01% | 225,324 | $7,573,140 | $6,455,533 | -$1,117,607 | -14.76% | |
| American Century Companies Inc | 0.00% | 222,608 | $7,481,855 | $6,377,719 | -$1,104,136 | -14.76% | |
| Royce & Associates Lp | 0.07% | 221,388 | $7,440,851 | $6,342,766 | -$1,098,085 | -14.76% | |
| Northern Trust Corp | 0.00% | 201,568 | $6,774,702 | $5,774,923 | -$999,779 | -14.76% | |
| Invesco Ltd. | 0.00% | 193,753 | $6,512,039 | $5,551,023 | -$961,016 | -14.76% | |
| Morgan Stanley | 0.00% | 186,540 | $6,269,688 | $5,344,371 | -$925,317 | -14.76% | |
| Two Sigma Investments, Lp | 0.01% | 182,678 | $6,139,808 | $5,233,725 | -$906,083 | -14.76% | |
| Jacobs Levy Equity Management, Inc | 0.02% | 164,053 | $5,513,821 | $4,700,118 | -$813,703 | -14.76% | |
| Qube Research & Technologies Ltd | 0.01% | 155,059 | $5,211,533 | $4,442,440 | -$769,093 | -14.76% | |
| Segall Bryant & Hamill, Llc | 0.08% | 158,831 | $5,208,068 | $4,550,508 | -$657,560 | -12.63% | |
| Owls Nest Partners Ia, Llc | 1.70% | 144,544 | $4,858,124 | $4,141,186 | -$716,938 | -14.76% | |
| Oppenheimer & Close, Llc | 3.02% | 142,578 | $4,792,047 | $4,084,860 | -$707,187 | -14.76% | |
| Captrust Financial Advisors | 0.01% | 137,725 | $4,628,931 | $3,945,821 | -$683,110 | -14.76% | |
| Vanguard Fiduciary Trust Co | 0.00% | 131,267 | $4,411,884 | $3,760,800 | -$651,084 | -14.76% | |
| Goldman Sachs Group Inc | 0.00% | 117,634 | $3,953,678 | $3,370,214 | -$583,464 | -14.76% | |
| Lazard Asset Management Llc | 0.01% | 116,990 | $3,932,034 | $3,351,764 | -$580,271 | -14.76% | |
| Ancora Advisors Llc | 0.08% | 115,177 | $3,871,099 | $3,299,821 | -$571,278 | -14.76% | |
| Bank Of America Corp | 0.00% | 113,515 | $3,815,240 | $3,252,205 | -$563,035 | -14.76% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 106,940 | $3,594,253 | $3,063,831 | -$530,422 | -14.76% |
| Isthmus Partners, Llc | 0.35% | 98,957 | $3,325,945 | $2,835,118 | -$490,827 | -14.76% | |
| Principal Financial Group Inc | 0.00% | 94,697 | $3,182,767 | $2,713,069 | -$469,698 | -14.76% | |
| Bridge City Capital, Llc | 0.88% | 94,613 | $3,179,943 | $2,710,662 | -$469,281 | -14.76% | |
| Icon Advisers Inc/Co | 0.72% | 93,000 | $3,125,730 | $2,664,450 | -$461,280 | -14.76% | |
| Russell Investments Group, Ltd. | 0.00% | 87,450 | $2,939,217 | $2,505,443 | -$433,775 | -14.76% | |
| Nfj Investment Group, Llc | 0.10% | 80,770 | $2,714,680 | $2,314,061 | -$400,620 | -14.76% | |
| Jane Street Group, Llc | 0.00% | 80,645 | $2,710,479 | $2,310,479 | -$400,000 | -14.76% | |
| Millennium Management Llc | 0.00% | 75,954 | $2,552,814 | $2,176,082 | -$376,732 | -14.76% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 75,672 | $2,543,336 | $2,168,003 | -$375,333 | -14.76% | |
| Aqr Capital Management Llc | 0.00% | 70,821 | $2,380,294 | $2,029,022 | -$351,272 | -14.76% | |
| Chatham Capital Group, Inc. | 0.34% | 69,965 | $2,351,524 | $2,004,497 | -$347,027 | -14.76% | |
| Public Sector Pension Investment Board | 0.01% | 69,342 | $2,330,585 | $1,986,648 | -$343,937 | -14.76% | |
| Martingale Asset Management L P | 0.05% | 63,293 | $2,127,278 | $1,813,344 | -$313,934 | -14.76% | |
| First Trust Advisors Lp | 0.00% | 62,565 | $2,102,809 | $1,792,487 | -$310,322 | -14.76% | |
| Rhumbline Advisers | 0.00% | 53,120 | $1,785,350 | $1,521,888 | -$263,462 | -14.76% | |
| Kennedy Capital Management Llc | 0.04% | 49,484 | $1,663,157 | $1,417,717 | -$245,440 | -14.76% | |
| Linden Thomas Advisory Services, Llc | 0.16% | 48,798 | $1,640,101 | $1,398,063 | -$242,038 | -14.76% |
Frequently asked questions about IIIN
Who owns the most IIIN stock?
The largest holders of IIIN 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 INSTEEL INDUSTRIES INC (IIIN).
Is IIIN widely held by superinvestors?
Many widely followed stocks like IIIN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly IIIN 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.