Insteel Industries Inc.
US ˙ NYSE ˙ US45774W1080

SecurityIIIN / Insteel Industries Inc.
InstitutionRobotti Robert
Latest Disclosed Ownership297,810 shares
Latest Disclosed Value $ 10,009,394
Robotti Robert reports 0.43% decrease in ownership of IIIN / Insteel Industries Inc.

On May 13, 2026 - Robotti Robert filed a 13F-HR form disclosing ownership of 297,810 shares of Insteel Industries Inc. (US:IIIN) valued at $10,009,394 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 18, 2026 disclosing 299,100 shares of Insteel Industries Inc.. This represents a change in shares of -0.43% during the quarter. The current value of the position is $8,570,972 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F INSTEEL INDUSTRIES COM 45774W108 297,810 -1,290 -0.43 10,009 5.67 1.5609
2026-02-18 2025-12-31 13F/A-1 INSTEEL INDUSTRIES COM 45774W108 299,100 2,045 0.69 9,472 -16.83 1.7012
2026-02-12 2025-12-31 13F INSTEEL INDUSTRIES COM 45774W108 299,100 2,045 9,472
2025-11-12 2025-09-30 13F INSTEEL INDUSTRIES COM 45774W108 297,055 -2,192 -0.73 11,389 2.29 1.9759
2025-08-13 2025-06-30 13F INSTEEL INDUSTRIES COM 45774W108 299,247 -2,493 -0.83 11,135 40.32 1.8713
2025-05-13 2025-03-31 13F INSTEEL INDUSTRIES COM 45774W108 301,740 2,495 0.83 7,936 -1.82 1.5901
2025-02-12 2024-12-31 13F INSTEEL INDUSTRIES COM 45774W108 299,245 1,110 0.37 8,083 -12.81 1.4186
2024-11-14 2024-09-30 13F INSTEEL INDUSTRIES COM 45774W108 298,135 -6,825 -2.24 9,269 -1.82 1.4108
2024-08-14 2024-06-30 13F INSTEEL INDUSTRIES COM 45774W108 304,960 42,180 16.05 9,442 -5.99 1.4790
2024-05-15 2024-03-31 13F INSTEEL INDUSTRIES COM 45774W108 262,780 15,415 6.23 10,043 6.04 1.3629
2024-02-14 2023-12-31 13F INSTEEL INDUSTRIES COM 45774W108 247,365 -2,935 -1.17 9,472 16.58 1.3636
2023-11-14 2023-09-30 13F INSTEEL INDUSTRIES COM 45774W108 250,300 -2,916 -1.15 8,125 3.10 1.1933
2023-08-14 2023-06-30 13F INSTEEL INDS COM 45774W108 253,216 70 0.03 7,880 11.90 1.2724
2023-05-12 2023-03-31 13F INSTEEL INDUSTRIES COM 45774W108 253,146 -456 -0.18 7,043 0.90 1.2403
2023-03-03 2022-12-31 13F/A-1 INSTEEL INDUSTRIES COM 45774W108 253,602 -2,158 -0.84 6,979 2.86 1.3913
2023-02-14 2022-12-31 13F INSTEEL INDUSTRIES COM 45774W108 253,602 -2,158 6,979 0.6613
2022-11-14 2022-09-30 13F INSTEEL INDUSTRIES COM 45774W108 255,760 -201 -0.08 6,785 -21.27 1.6121
2022-08-12 2022-06-30 13F INSTEEL INDUSTRIES COM 45774W108 255,961 290 0.11 8,618 -8.87 2.1080
2022-05-16 2022-03-31 13F INSTEEL INDUSTRIES COM 45774W108 255,671 70 0.03 9,457 -7.06 1.9138
2022-02-14 2021-12-31 13F INSTEEL INDUSTRIES COM 45774W108 255,601 -3,049 -1.18 10,175 3.38 2.0621
2021-11-15 2021-09-30 13F INSTEEL INDUSTRIES COM 45774W108 258,650 1,195 0.46 9,842 18.91 2.2580
2021-08-16 2021-06-30 13F INSTEEL INDUSTRIES COM 45774W108 257,455 95,637 59.10 8,277 65.87 2.0775
2021-05-17 2021-03-31 13F INSTEEL INDUSTRIES COM 45774W108 161,818 -2,070 -1.26 4,990 36.71 1.2591
2021-02-16 2020-12-31 13F INSTEEL INDUSTRIES COM 45774W108 163,888 9,690 6.28 3,650 26.56 1.0651
2020-11-16 2020-09-30 13F INSTEEL INDUSTRIES COM 45774W108 154,198 -6,270 -3.91 2,884 -5.75 1.1127
2020-08-14 2020-06-30 13F INSTEEL INDUSTRIES COM 45774W108 160,468 -3,000 -1.84 3,060 41.27 1.3173
2020-05-15 2020-03-31 13F INSTEEL INDUSTRIES COM 45774W108 163,468 -20,715 -11.25 2,166 -45.28 1.2714
2020-02-14 2019-12-31 13F INSTEEL INDUSTRIES COM 45774W108 184,183 -34,740 -15.87 3,958 -11.93 1.2625
2020-02-25 2019-09-30 13F/A-1 INSTEEL INDUSTRIES COM 45774W108 218,923 2,050 0.95 4,494 -0.47 1.3704
2019-11-14 2019-09-30 13F INSTEEL INDUSTRIES COM 45774W108 218,923 2,050 4,494 1,369,858.8381
2019-08-14 2019-06-30 13F INSTEEL INDUSTRIES COM 45774W108 216,873 -8,287 -3.68 4,515 -4.14 1.5724
2019-05-14 2019-03-31 13F INSTEEL INDUSTRIES COM 45774W108 225,160 -5,635 -2.44 4,710 -15.95 1.6615
2019-02-14 2018-12-31 13F INSTEEL INDUSTRIES COM 45774W108 230,795 -4,225 -1.80 5,604 -33.55 2.1930
2018-11-14 2018-09-30 13F INSTEEL INDUSTRIES COM 45774W108 235,020 192 0.08 8,433 7.51 2.2204
2018-08-07 2018-06-30 13F INSTEEL INDUSTRIES COM 45774W108 234,828 -1,630 -0.69 7,844 20.07 2.0437
2018-05-15 2018-03-31 13F INSTEEL INDUSTRIES COM 45774W108 236,458 -495 -0.21 6,533 -2.64 1.8076
2018-02-08 2017-12-31 13F INSTEEL INDUSTRIES COM 45774W108 236,953 -950 -0.40 6,710 8.02 1.7498
2017-11-13 2017-09-30 13F INSTEEL INDUSTRIES COM 45774W108 237,903 -395 -0.17 6,212 -20.61 1.7041
2017-08-09 2017-06-30 13F INSTEEL INDUSTRIES COM 45774W108 238,298 -2,115 -0.88 7,825 -9.94 2.3570
2017-05-11 2017-03-31 13F INSTEEL INDUSTRIES COM 45774W108 240,413 2,115 0.89 8,689 2.31 2.5663
2017-02-14 2016-12-31 13F INSTEEL INDUSTRIES COM 45774W108 238,298 49,250 26.05 8,493 23.97 2.5867
2016-11-09 2016-09-30 13F INSTEEL INDUSTRIES COM 45774W108 189,048 -1,950 -1.02 6,851 25.45 2.3505
2016-08-11 2016-06-30 13F INSTEEL INDUSTRIES COM 45774W108 190,998 5,580 3.01 5,461 -3.65 1.9676
2016-05-25 2016-03-31 13F/A-1 INSTEEL INDUSTRIES COM 45774W108 185,418 -4,060 -2.14 5,668 42.99 2.0620
2016-05-16 2016-03-31 13F INSTEEL INDUSTRIES COM 45774W108 185,418 5,668
2016-02-16 2015-12-31 13F INSTEEL INDUSTRIES COM 45774W108 189,478 -600 -0.32 3,964 29.71 1.6229
2015-11-16 2015-09-30 13F INSTEEL INDUSTRIES COM 45774W108 190,078 97,553 105.43 3,056 76.65 2.0338
2015-08-17 2015-06-30 13F INSTEEL INDUSTRIES COM 45774W108 92,525 92,525 1,730 0.9589
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.