Gibraltar Industries (ROCK)
Gibraltar Industries on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as steel works, blast furnaces & rolling & finishing mills.
2.1M
Short interest
settlement 2026-09-30
4.9
Days to cover
-2.0 days vs prior
75.6%
Short share of volume
2026-10-23
2
Fails to deliver
settlement 2026-09-23
Thu 29 Oct
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in ROCK is 2,086,193 shares, up 414,310 shares over the last month. Over the last 48 readings it ranged from 276,221 shares (14 February 2025) to 2,086,193 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 424K shares a day that is 4.9 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/rock" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 2,086,193 | +8.0% | 423,577 | 4.93 |
| 2026-09-15 | 1,931,895 | +15.6% | 277,465 | 6.96 |
| 2026-08-31 | 1,671,883 | +15.9% | 191,794 | 8.72 |
| 2026-08-14 | 1,442,451 | +2.1% | 370,861 | 3.89 |
| 2026-07-31 | 1,412,139 | +2.7% | 349,677 | 4.04 |
| 2026-07-15 | 1,374,431 | +8.4% | 278,703 | 4.93 |
| 2026-06-30 | 1,267,509 | -3.8% | 447,607 | 2.83 |
| 2026-06-15 | 1,317,737 | +0.1% | 334,901 | 3.93 |
| 2026-05-29 | 1,316,333 | +7.4% | 387,814 | 3.39 |
| 2026-05-15 | 1,225,160 | +2.4% | 405,051 | 3.02 |
| 2026-04-30 | 1,196,960 | +17.1% | 331,695 | 3.61 |
| 2026-04-15 | 1,022,037 | +0.5% | 295,017 | 3.46 |
| 2026-03-31 | 1,016,546 | -11.6% | 364,498 | 2.79 |
| 2026-03-13 | 1,149,362 | +78.5% | 408,509 | 2.81 |
| 2026-02-27 | 644,042 | -1.9% | 223,918 | 2.88 |
| 2026-02-13 | 656,388 | +20.5% | 225,701 | 2.91 |
| 2026-01-30 | 544,568 | +23.7% | 544,233 | 1.00 |
| 2026-01-15 | 440,144 | -9.1% | 283,633 | 1.55 |
| 2025-12-31 | 484,038 | -21.4% | 283,418 | 1.71 |
| 2025-12-15 | 615,638 | -14.6% | 261,127 | 2.36 |
| 2025-11-28 | 720,826 | -10.5% | 579,469 | 1.24 |
| 2025-11-14 | 805,083 | +2.0% | 252,927 | 3.18 |
| 2025-10-31 | 789,052 | +20.3% | 384,200 | 2.05 |
| 2025-10-15 | 655,940 | +4.4% | 364,631 | 1.80 |
| 2025-09-30 | 628,239 | +18.5% | 278,097 | 2.26 |
| 2025-09-15 | 530,010 | +0.6% | 188,567 | 2.81 |
| 2025-08-29 | 526,678 | +0.3% | 201,304 | 2.62 |
| 2025-08-15 | 525,387 | +20.0% | 290,192 | 1.81 |
| 2025-07-31 | 437,842 | -9.6% | 205,435 | 2.13 |
| 2025-07-15 | 484,335 | -2.9% | 195,050 | 2.48 |
| 2025-06-30 | 498,740 | -25.9% | 295,564 | 1.69 |
| 2025-06-13 | 673,222 | +9.0% | 171,569 | 3.92 |
| 2025-05-30 | 617,758 | +7.3% | 368,429 | 1.68 |
| 2025-05-15 | 575,569 | -2.0% | 273,808 | 2.10 |
| 2025-04-30 | 587,422 | +7.9% | 245,461 | 2.39 |
| 2025-04-15 | 544,571 | +11.0% | 331,652 | 1.64 |
| 2025-03-31 | 490,587 | -8.0% | 358,235 | 1.37 |
| 2025-03-14 | 533,416 | +37.0% | 353,643 | 1.51 |
| 2025-02-28 | 389,436 | +41.0% | 390,732 | 1.00 |
| 2025-02-14 | 276,221 | -3.2% | 150,769 | 1.83 |
| 2025-01-31 | 285,397 | -11.7% | 186,128 | 1.53 |
| 2025-01-15 | 323,170 | +9.4% | 177,014 | 1.83 |
| 2024-12-31 | 295,349 | -27.8% | 333,426 | 1.00 |
| 2024-12-13 | 408,961 | +0.0% | 130,748 | 3.13 |
| 2024-11-29 | 408,779 | -10.5% | 173,471 | 2.36 |
| 2024-11-15 | 456,575 | -8.2% | 175,561 | 2.60 |
| 2024-10-31 | 497,279 | +23.6% | 157,300 | 3.16 |
| 2024-10-15 | 402,220 | +34.8% | 164,104 | 2.45 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of ROCK volume is 75.6%, up 3.2 points over the last five sessions. Over the last 30 readings it ranged from 36.3% (15 October 2026) to 85.7% (15 September 2026). The latest reading is 11.9 points above the 30-session average of 63.7%, on 105K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 80K | 105K | 75.6% | 0 |
| 2026-10-22 | 77K | 145K | 53.2% | 0 |
| 2026-10-21 | 104K | 154K | 67.2% | 0 |
| 2026-10-20 | 118K | 145K | 81.1% | 0 |
| 2026-10-19 | 160K | 208K | 77.0% | 0 |
| 2026-10-16 | 120K | 165K | 72.4% | 0 |
| 2026-10-15 | 149K | 412K | 36.3% | 0 |
| 2026-10-14 | 94K | 169K | 55.7% | 0 |
| 2026-10-13 | 83K | 161K | 51.4% | 0 |
| 2026-10-12 | 80K | 146K | 54.4% | 0 |
| 2026-10-09 | 103K | 163K | 63.0% | 0 |
| 2026-10-08 | 153K | 272K | 56.1% | 0 |
| 2026-10-07 | 94K | 123K | 76.7% | 0 |
| 2026-10-06 | 42K | 66K | 62.9% | 0 |
| 2026-10-05 | 66K | 112K | 58.7% | 0 |
| 2026-10-02 | 57K | 91K | 63.0% | 0 |
| 2026-10-01 | 65K | 146K | 44.7% | 0 |
| 2026-09-30 | 58K | 87K | 66.1% | 0 |
| 2026-09-29 | 63K | 92K | 68.3% | 0 |
| 2026-09-28 | 58K | 102K | 56.6% | 0 |
| 2026-09-25 | 52K | 142K | 36.6% | 0 |
| 2026-09-24 | 124K | 212K | 58.7% | 0 |
| 2026-09-23 | 107K | 175K | 61.1% | 1,300 |
| 2026-09-22 | 88K | 144K | 60.8% | 6,932 |
| 2026-09-21 | 75K | 110K | 67.9% | 0 |
| 2026-09-18 | 152K | 269K | 56.5% | 24,090 |
| 2026-09-17 | 129K | 152K | 84.6% | 0 |
| 2026-09-16 | 143K | 170K | 83.8% | 40 |
| 2026-09-15 | 68K | 79K | 85.7% | 64 |
| 2026-09-14 | 60K | 81K | 73.9% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 23 September 2026, the fails-to-deliver balance in ROCK is 2 shares, down 4,362 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (23 September 2026) to 11,374 shares (27 April 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-23 | 2 | $42.60 | $85 |
| 2026-09-18 | 4,364 | $43.93 | $192K |
| 2026-09-14 | 15 | $46.16 | $692 |
| 2026-09-11 | 195 | $44.52 | $9K |
| 2026-09-04 | 325 | $45.77 | $15K |
| 2026-09-03 | 121 | $44.24 | $5K |
| 2026-09-02 | 2,185 | $42.86 | $94K |
| 2026-08-18 | 80 | $47.53 | $4K |
| 2026-08-11 | 7 | $48.86 | $342 |
| 2026-08-07 | 19 | $50.78 | $965 |
| 2026-08-06 | 422 | $54.86 | $23K |
| 2026-07-31 | 1,014 | $42.87 | $43K |
| 2026-07-16 | 47 | $44.21 | $2K |
| 2026-07-15 | 715 | $41.60 | $30K |
| 2026-07-02 | 42 | $45.31 | $2K |
| 2026-06-17 | 5 | $41.47 | $207 |
| 2026-06-09 | 1,173 | $38.39 | $45K |
| 2026-05-19 | 76 | $35.55 | $3K |
| 2026-05-11 | 231 | $40.81 | $9K |
| 2026-05-05 | 355 | $36.92 | $13K |
| 2026-04-27 | 11,374 | $39.57 | $450K |
| 2026-04-14 | 96 | $41.55 | $4K |
| 2026-03-27 | 603 | $40.92 | $25K |
| 2026-03-19 | 794 | $39.83 | $32K |
| 2026-03-09 | 116 | $40.23 | $5K |
| 2026-02-20 | 1,587 | $53.15 | $84K |
| 2026-02-19 | 5 | $52.89 | $264 |
| 2026-02-05 | 834 | $53.08 | $44K |
| 2026-02-04 | 1,814 | $51.69 | $94K |
| 2026-02-03 | 648 | $51.96 | $34K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for ROCK in the last 90 days. The most recent filings are listed below. Latest filing: Lovechio Joseph A (VP and CFO) on 2026-08-19.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-19 | Lovechio Joseph A | VP and CFO | Tax withholding | 638 | $47.85 | $31K | 13K |
| 2026-05-26 | Bosway William T | President and CEO | Buy | 20K | $37.44 | $739K | 250K |
| 2026-05-21 | Bolanowski Katherine | General Counsel, VP, Secretary | Buy | 144 | $35.66 | $5K | 17K |
| 2026-05-21 | Bolanowski Katherine | General Counsel, VP, Secretary | Buy | 1K | $35.63 | $45K | 17K |
| 2026-05-20 | Lovechio Joseph A | VP and CFO | Buy | 1K | $34.62 | $35K | 13K |
| 2026-05-07 | Mizell Gwendolyn G | Director | Grant | 3K | $37.59 | $115K | 13K |
| 2026-05-07 | Nish James B | Director | Grant | 3K | $37.59 | $115K | 15K |
| 2026-05-07 | Myers Linda Kristine | Director | Grant | 3K | $37.59 | $115K | 22K |
| 2026-05-07 | Pope Atlee Valentine | Director | Grant | 3K | $37.59 | $115K | 15K |
| 2026-05-07 | Shah Manish H | Director | Grant | 3K | $37.59 | $115K | 13K |
| 2026-05-07 | METCALF JAMES S | Director | Grant | 3K | $37.59 | $115K | 19K |
| 2026-05-07 | Barberio Mark G | Director | Grant | 3K | $37.59 | $115K | 18K |
| 2026-04-26 | Catlett Janet Anne | VP, CHRO | Tax withholding | 169 | $39.57 | $7K | 13K |
| 2026-03-13 | Bosway William T | President and CEO | Buy | 1K | $41.37 | $41K | 231K |
| 2026-03-10 | Bosway William T | President and CEO | Buy | 2K | $39.52 | $59K | 230K |
| 2026-03-10 | METCALF JAMES S | Director | Buy | 12K | $40.35 | $502K | 16K |
| 2026-03-09 | Bosway William T | President and CEO | Buy | 5K | $38.29 | $172K | 228K |
| 2026-03-04 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 3K | $43.05 | $128K | 17K |
| 2026-03-04 | Catlett Janet Anne | VP, CHRO | Tax withholding | 3K | $43.05 | $140K | 14K |
| 2026-03-04 | Bosway William T | President and CEO | Tax withholding | 30K | $43.05 | $1.3M | 224K |
| 2026-03-04 | Bolanowski Katherine | General Counsel, VP, Secretary | Tax withholding | 3K | $43.05 | $112K | 16K |
| 2026-03-03 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 117 | $43.83 | $5K | 20K |
| 2026-03-03 | Lovechio Joseph A | VP and CFO | Tax withholding | 379 | $43.83 | $17K | 12K |
| 2026-03-03 | Catlett Janet Anne | VP, CHRO | Tax withholding | 268 | $43.83 | $12K | 17K |
| 2026-03-03 | Bosway William T | President and CEO | Tax withholding | 2K | $43.83 | $86K | 254K |
| 2026-03-03 | Bolanowski Katherine | General Counsel, VP, Secretary | Tax withholding | 286 | $43.83 | $13K | 19K |
| 2026-03-02 | Watorek Jeffrey J. | VP and Treasurer | Grant | 1K | $0.00 | $0 | 20K |
| 2026-03-02 | Lovechio Joseph A | VP and CFO | Grant | 5K | $0.00 | $0 | 13K |
| 2026-03-02 | Catlett Janet Anne | VP, CHRO | Grant | 3K | $0.00 | $0 | 17K |
| 2026-03-02 | Bosway William T | President and CEO | Grant | 28K | $0.00 | $0 | 256K |
| 2026-03-02 | Bolanowski Katherine | General Counsel, VP, Secretary | Grant | 3K | $0.00 | $0 | 19K |
| 2026-03-01 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 278 | $45.48 | $13K | 18K |
| 2026-03-01 | Catlett Janet Anne | VP, CHRO | Tax withholding | 184 | $45.48 | $8K | 14K |
| 2026-03-01 | Bosway William T | President and CEO | Tax withholding | 6K | $45.48 | $267K | 228K |
| 2026-03-01 | Bolanowski Katherine | General Counsel, VP, Secretary | Tax withholding | 739 | $45.48 | $34K | 15K |
| 2025-08-19 | Lovechio Joseph A | VP and CFO | Tax withholding | 637 | $62.92 | $40K | 8K |
| 2025-05-05 | Nish James B | Director | Sell | 1K | $58.21 | $68K | 12K |
| 2025-05-02 | Nish James B | Director | Sell | 2K | $57.38 | $96K | 14K |
| 2025-05-02 | Nish James B | Director | Sell | 1K | $57.91 | $58K | 13K |
| 2025-04-30 | Barberio Mark G | Director | Grant | 2K | $52.95 | $115K | 15K |
| 2025-04-30 | METCALF JAMES S | Director | Grant | 2K | $52.95 | $115K | 3K |
| 2025-04-30 | Mizell Gwendolyn G | Director | Grant | 2K | $52.95 | $115K | 10K |
| 2025-04-30 | Myers Linda Kristine | Director | Grant | 2K | $52.95 | $115K | 19K |
| 2025-04-30 | Nish James B | Director | Grant | 2K | $52.95 | $115K | 16K |
| 2025-04-30 | Pope Atlee Valentine | Director | Grant | 2K | $52.95 | $115K | 12K |
| 2025-04-30 | Shah Manish H | Director | Grant | 2K | $52.95 | $115K | 10K |
| 2025-04-26 | Catlett Janet Anne | VP, CHRO | Tax withholding | 169 | $53.17 | $9K | 14K |
| 2025-03-06 | Bosway William T | President and CEO | Tax withholding | 2K | $65.71 | $150K | 234K |
| 2025-03-06 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 173 | $65.71 | $11K | 19K |
| 2025-03-03 | Bosway William T | President and CEO | Grant | 18K | $0.00 | $0 | 236K |
| 2025-03-03 | Lovechio Joseph A | VP and CFO | Grant | 3K | $0.00 | $0 | 9K |
| 2025-03-03 | Bolanowski Katherine | General Counsel, VP, Secretary | Grant | 2K | $0.00 | $0 | 16K |
| 2025-03-03 | Catlett Janet Anne | VP, CHRO | Grant | 2K | $0.00 | $0 | 14K |
| 2025-03-03 | Watorek Jeffrey J. | VP and Treasurer | Grant | 859 | $0.00 | $0 | 19K |
| 2025-03-01 | Bosway William T | President and CEO | Tax withholding | 16K | $65.71 | $1.0M | 218K |
| 2025-03-01 | Bolanowski Katherine | General Counsel, VP, Secretary | Tax withholding | 2K | $65.71 | $111K | 14K |
| 2025-03-01 | Catlett Janet Anne | VP, CHRO | Tax withholding | 134 | $65.71 | $9K | 12K |
| 2025-03-01 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 1K | $65.71 | $66K | 18K |
| 2025-02-18 | Bosway William T | President and CEO | Grant | 11K | $0.00 | $0 | 234K |
| 2025-02-18 | Lovechio Joseph A | VP and CFO | Grant | 982 | $0.00 | $0 | 5K |
| 2025-02-18 | Bolanowski Katherine | General Counsel, VP, Secretary | Grant | 932 | $0.00 | $0 | 16K |
| 2025-02-18 | Catlett Janet Anne | VP, CHRO | Grant | 2K | $0.00 | $0 | 12K |
| 2025-02-18 | Watorek Jeffrey J. | VP and Treasurer | Grant | 930 | $0.00 | $0 | 19K |
| 2024-11-01 | Bolanowski Katherine | General Counsel, VP, Secretary | Grant | 900 | $0.00 | $0 | 15K |
| 2024-11-01 | Watorek Jeffrey J. | VP and Treasurer | Grant | 600 | $0.00 | $0 | 18K |
| 2024-11-01 | METCALF JAMES S | Director | Grant | 884 | $66.95 | $59K | 884 |
| 2024-08-19 | Lovechio Joseph A | VP and CFO | Grant | 4K | $0.00 | $0 | 5K |
| 2024-08-19 | Lovechio Joseph A | VP and CFO | Grant | 727 | $0.00 | $0 | 727 |
| 2024-05-01 | Barberio Mark G | Director | Grant | 2K | $68.86 | $115K | 13K |
| 2024-05-01 | Mizell Gwendolyn G | Director | Grant | 2K | $68.86 | $115K | 8K |
| 2024-05-01 | Myers Linda Kristine | Director | Grant | 2K | $68.86 | $115K | 16K |
| 2024-05-01 | Nish James B | Director | Grant | 2K | $68.86 | $115K | 14K |
| 2024-05-01 | Pope Atlee Valentine | Director | Grant | 2K | $68.86 | $115K | 10K |
| 2024-05-01 | Shah Manish H | Director | Grant | 2K | $68.86 | $115K | 8K |
| 2024-04-26 | Catlett Janet Anne | VP, CHRO | Tax withholding | 176 | $72.26 | $13K | 10K |
| 2024-03-02 | Bosway William T | President and CEO | Tax withholding | 2K | $77.70 | $144K | 223K |
| 2024-03-02 | Murphy Timothy F. | Senior VP and CFO | Tax withholding | 451 | $77.70 | $35K | 94K |
| 2024-03-02 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 55 | $77.70 | $4K | 17K |
| 2024-03-01 | Bosway William T | President and CEO | Grant | 14K | $0.00 | $0 | 224K |
| 2024-03-01 | Bosway William T | President and CEO | Tax withholding | 6K | $77.70 | $461K | 210K |
| 2024-03-01 | Murphy Timothy F. | Senior VP and CFO | Tax withholding | 1K | $77.70 | $107K | 92K |
| 2024-03-01 | Murphy Timothy F. | Senior VP and CFO | Grant | 3K | $0.00 | $0 | 95K |
| 2024-03-01 | Catlett Janet Anne | VP, CHRO | Grant | 2K | $0.00 | $0 | 11K |
| 2024-03-01 | Bolanowski Katherine | General Counsel, VP, Secretary | Grant | 2K | $0.00 | $0 | 14K |
| 2024-03-01 | Bolanowski Katherine | General Counsel, VP, Secretary | Tax withholding | 545 | $77.70 | $42K | 12K |
| 2024-03-01 | Watorek Jeffrey J. | VP and Treasurer | Grant | 516 | $0.00 | $0 | 17K |
| 2024-03-01 | Watorek Jeffrey J. | VP and Treasurer | Tax withholding | 450 | $77.70 | $35K | 17K |
| 2024-02-20 | Bosway William T | President and CEO | Grant | 72K | $0.00 | $0 | 216K |
| 2024-02-20 | Murphy Timothy F. | Senior VP and CFO | Grant | 18K | $0.00 | $0 | 93K |
| 2024-02-20 | Catlett Janet Anne | VP, CHRO | Grant | 7K | $0.00 | $0 | 9K |
| 2024-02-20 | Bolanowski Katherine | General Counsel, VP, Secretary | Grant | 6K | $0.00 | $0 | 12K |
| 2024-02-20 | Watorek Jeffrey J. | VP and Treasurer | Grant | 6K | $0.00 | $0 | 17K |
| 2023-11-09 | Barberio Mark G | Director | Gift | 3K | $0.00 | $0 | 0 |
| 2023-05-23 | Nish James B | Director | Sell | 5K | $56.69 | $281K | 12K |
| 2023-05-03 | Barberio Mark G | Director | Grant | 2K | $54.33 | $115K | 12K |
| 2023-05-03 | HINDMAN CRAIG A | Director | Grant | 2K | $54.33 | $115K | 20K |
| 2023-05-03 | Mizell Gwendolyn G | Director | Grant | 2K | $54.33 | $115K | 6K |
| 2023-05-03 | Myers Linda Kristine | Director | Grant | 2K | $54.33 | $115K | 15K |
| 2023-05-03 | Nish James B | Director | Grant | 2K | $54.33 | $115K | 17K |
| 2023-05-03 | Pope Atlee Valentine | Director | Grant | 2K | $54.33 | $115K | 8K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON4 holders report 5% or more of ROCK in their latest filing, all on Schedule 13G (passive). The largest reported stake is FMR LLC at 15.0% of the class (4,432,059 shares), filed 2026-05-06 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-05-18 | 13G/Ano. 1 | AllianceBernstein L.P.investment adviser | 2.2M | 7.4% | 2026-03-31 |
| 2026-05-06 | 13G/Ano. 3 | FMR LLCparent holding company | 4.4M | 15.0% | 2026-03-31 |
| 2026-05-06 | 13G/Ano. 3 | Abigail P. Johnsonindividual | 4.4M | 15.0% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 1.5M | 5.2% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 9 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding ROCK at their latest 13F. JSON5 of the 30 tracked managers held ROCK at their latest 13F, $31.5M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $10.1M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 1 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| D. E. Shaw & Co. | 2026-06-30 | 225K | $10.1M | 0.00% | -25K |
| Citadel Advisors | 2026-06-30 | 191K | $8.6M | 0.00% | +73K |
| AQR Capital Management | 2026-06-30 | 160K | $7.2M | 0.00% | +64K |
| Renaissance Technologies | 2026-06-30 | 67K | $3.0M | 0.00% | +51K |
| Millennium Management | 2026-06-30 | 57K | $2.6M | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Gibraltar Industries in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Gibraltar Industries (ROCK), SEC CIK 912562, listed on Nasdaq, classified by the SEC as steel works, blast furnaces & rolling & finishing mills. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-23.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-05-18.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-05-07.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-08-19.JSON and CSV
- Company record
- EDGAR filing index for CIK 912562Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as steel works, blast furnaces & rolling & finishing mills
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Datasets
Frequently Asked Questions
How much of ROCK is sold short?
2,086,193 shares were held short at the 2026-09-30 settlement, 4.9 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is ROCK's daily short volume?
On 2026-10-23, 79,754 of the 105,490 ROCK shares reported to FINRA were sold short, 75.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ROCK have fails to deliver?
The SEC's latest file shows 2 ROCK shares failed to deliver at settlement 2026-09-23. Fails are reported per settlement date and published twice a month with a lag.
Are ROCK insiders buying or selling?
No open-market insider trades were reported for ROCK in the last 90 days. The most recent filings are listed below. Latest filing: Lovechio Joseph A (VP and CFO) on 2026-08-19.
Who owns 5% or more of ROCK?
4 holders report 5% or more of ROCK in their latest filing, all on Schedule 13G (passive). The largest reported stake is FMR LLC at 15.0% of the class (4,432,059 shares), filed 2026-05-06 for an event on 2026-03-31.
Which tracked 13F managers own ROCK?
5 of the 30 tracked 13F managers held ROCK shares at their latest filing, $31.5M in all. The largest: D. E. Shaw & Co. (225K shares, $10.1M), Ken Griffin's Citadel Advisors (191K shares, $8.6M), Cliff Asness's AQR Capital Management (160K shares, $7.2M), Renaissance Technologies (67K shares, $3.0M), Izzy Englander's Millennium Management (57K shares, $2.6M).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.