Issued 2026-09-16 at $93.21 · now $93.21 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, GFF has typically landed between $79.38 and $113.53 — a range of −14.8% to +21.8% from the issuance price $93.21.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
5,003 overlapping 1 month windows · 2006-09-26 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).
The cone is anchored at the 2026-09-16 issuance close ($93.21) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.
Where GFF has typically landed a month from the 2026-09-16 close of $93.21 — the range is history, not a prediction.
- now $93.21 (+0.0%)
- typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $95.14 (+2.1%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $87.72–$102.56
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $79.38–$113.53
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 5,003 windows spanning 2006-09-26 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2020-02-21 | −54.2% | −54.2% | +0.0% |
| 2020-02-20 | −52.5% | −52.5% | +1.2% |
| 2020-02-11 | −50.1% | −50.1% | +0.0% |
| 3 best | |||
| 2022-04-27 | +76.3% | +0.0% | +77.0% |
| 2022-04-26 | +72.4% | −0.5% | +76.1% |
| 2022-04-29 | +71.9% | +0.0% | +71.9% |
5,003 overlapping windows · 2006-09-26 – 2026-09-16 · not cherry-picked
Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.
iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~20 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.Jan
55%
+2.6%
n=20
Feb
45%
−0.9%
n=20
Mar
60%
−1.1%
n=20
Apr
40%
+1.7%
n=20
May
50%
+2.6%
n=20
Jun
45%
+0.2%
n=20
Jul
65%
+3.9%
n=20
Aug
55%
+0.7%
n=20
Sep
35%
−0.6%
n=20
Oct
55%
+0.2%
n=20
Nov
65%
+5.8%
n=20
Dec
55%
+3.0%
n=20
Up-frequency and average month-over-month return · historical frequency, not a prediction
Reported insider & political trades
Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.
| Date | Person | Role | Action | Shares @ price | Value | Ownership Δ | vs S&P 1m | vs S&P 6m | Owned after | Filing |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-13 | Sullivan Kevin F | director | Sale | 3,500 @ $105.59 | $370K | −7.9% of holding | −9.3% | not yet — horizon still open | 40,602 | Form 4 · filed 1 day after the trade |
| 2026-08-13 | TURNBULL CHERYL L | director | Sale | 3,000 @ $106.12 | $318K | −9.1% of holding | −9.3% | not yet — horizon still open | 30,039 | Form 4 · filed 1 day after the trade |
| 2026-08-11 | MEHMEL ROBERT F | officer | Sale | 3,240 @ $107.16 | $347K | −0.4% of holding | −9.1% | not yet — horizon still open | 723,032 | Form 4 · filed 2 days after the trade |
| 2026-08-10 | MEHMEL ROBERT F | officer | Sale | 3,638 @ $104.08 | $379K | −0.5% of holding | −5.5% | not yet — horizon still open | 729,273 | Form 4 · filed 1 day after the trade |
| 2026-08-10 | MEHMEL ROBERT F | officer | Sale | 2,913 @ $104.64 | $305K | −0.4% of holding | −5.5% | not yet — horizon still open | 726,360 | Form 4 · filed 1 day after the trade |
| 2026-08-10 | MEHMEL ROBERT F | officer | Sale | 88 @ $105.21 | $9K | −0.0% of holding | −5.5% | not yet — horizon still open | 726,272 | Form 4 · filed 1 day after the trade |
| 2026-08-07 | MEHMEL ROBERT F | officer | Sale | 13,464 @ $107.43 | $1.4M | −1.8% of holding | −8.3% | not yet — horizon still open | 733,464 | Form 4 · filed 4 days after the trade |
| 2026-08-07 | Harris Brian G | officer | Sale | 5,267 @ $107.11 | $564K | −3.9% of holding | −8.3% | not yet — horizon still open | 128,649 | Form 4 · filed 4 days after the trade |
| 2026-08-07 | MEHMEL ROBERT F | officer | Sale | 1,911 @ $106.60 | $204K | −0.3% of holding | −8.3% | not yet — horizon still open | 746,928 | Form 4 · filed 4 days after the trade |
| 2026-08-07 | MEHMEL ROBERT F | officer | Sale | 553 @ $108.09 | $60K | −0.1% of holding | −8.3% | not yet — horizon still open | 732,911 | Form 4 · filed 4 days after the trade |
| 2026-08-06 | MEHMEL ROBERT F | officer | Sale | 6,933 @ $105.46 | $731K | −0.9% of holding | −6.4% | not yet — horizon still open | 750,913 | Form 4 · filed 1 day after the trade |
| 2026-08-06 | MEHMEL ROBERT F | officer | Sale | 5,476 @ $104.56 | $573K | −0.7% of holding | −6.4% | not yet — horizon still open | 757,846 | Form 4 · filed 1 day after the trade |
| 2026-08-06 | MEHMEL ROBERT F | officer | Sale | 2,074 @ $106.27 | $220K | −0.3% of holding | −6.4% | not yet — horizon still open | 748,839 | Form 4 · filed 1 day after the trade |
| 2026-08-06 | MEHMEL ROBERT F | officer | Sale | 211 @ $103.52 | $22K | −0.0% of holding | −6.4% | not yet — horizon still open | 763,322 | Form 4 · filed 1 day after the trade |
| 2026-08-06 | MEHMEL ROBERT F | officer | Sale | 158 @ $102.03 | $16K | −0.0% of holding | −6.4% | not yet — horizon still open | 763,533 | Form 4 · filed 1 day after the trade |
| 2026-08-05 | KRAMER RONALD J | director | Sale | 45,240 @ $102.63 | $4.6M | −2.6% of holding | −5.4% | not yet — horizon still open | 1,708,819 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | KRAMER RONALD J | director | Sale | 17,322 @ $101.58 | $1.8M | −1.0% of holding | −5.4% | not yet — horizon still open | 1,754,059 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | KRAMER RONALD J | director | Sale | 16,402 @ $103.37 | $1.7M | −1.0% of holding | −5.4% | not yet — horizon still open | 1,692,417 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | KRAMER RONALD J | director | Sale | 12,916 @ $100.44 | $1.3M | −0.7% of holding | −5.4% | not yet — horizon still open | 1,771,381 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | Harris Brian G | officer | Sale | 8,817 @ $103.08 | $909K | −6.1% of holding | −5.4% | not yet — horizon still open | 136,149 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | KRAMER RONALD J | director | Sale | 8,120 @ $104.27 | $847K | −0.5% of holding | −5.4% | not yet — horizon still open | 1,684,297 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 5,434 @ $103.53 | $563K | −0.7% of holding | −5.4% | not yet — horizon still open | 765,908 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 5,341 @ $102.59 | $548K | −0.7% of holding | −5.4% | not yet — horizon still open | 771,342 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 3,527 @ $100.46 | $354K | −0.5% of holding | −5.4% | not yet — horizon still open | 779,473 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 2,790 @ $101.44 | $283K | −0.4% of holding | −5.4% | not yet — horizon still open | 776,683 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | Harris Brian G | officer | Sale | 2,233 @ $104.01 | $232K | −1.6% of holding | −5.4% | not yet — horizon still open | 133,916 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 2,217 @ $104.12 | $231K | −0.3% of holding | −5.4% | not yet — horizon still open | 763,691 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 2,283 @ $99.67 | $228K | −0.3% of holding | −5.4% | not yet — horizon still open | 783,000 | Form 4 · filed 2 days after the trade |
| 2026-08-05 | MEHMEL ROBERT F | officer | Sale | 617 @ $98.68 | $61K | −0.1% of holding | −5.4% | not yet — horizon still open | 785,283 | Form 4 · filed 2 days after the trade |
| 2026-06-30 | Harris Brian G | officer | Sale | 6,183 @ $98.01 | $606K | −4.1% of holding | −9.2% | not yet — horizon still open | 144,966 | Form 4 · filed 2 days after the trade |
| 2026-06-30 | MEHMEL ROBERT F | officer | Sale | 4,166 @ $97.76 | $407K | −0.5% of holding | −9.2% | not yet — horizon still open | 785,900 | Form 4 · filed 2 days after the trade |
| 2026-06-26 | MEHMEL ROBERT F | officer | Sale | 230 @ $95.52 | $22K | −0.0% of holding | −4.7% | not yet — horizon still open | 790,122 | Form 4 · filed 4 days after the trade |
| 2026-06-26 | MEHMEL ROBERT F | officer | Sale | 52 @ $96.14 | $5K | −0.0% of holding | −4.7% | not yet — horizon still open | 790,070 | Form 4 · filed 4 days after the trade |
| 2026-06-26 | MEHMEL ROBERT F | officer | Sale | 4 @ $97.50 | $390 | −0.0% of holding | −4.7% | not yet — horizon still open | 790,066 | Form 4 · filed 4 days after the trade |
| 2026-06-25 | MEHMEL ROBERT F | officer | Sale | 5,149 @ $95.62 | $492K | −0.6% of holding | −3.4% | not yet — horizon still open | 793,076 | Form 4 · filed 1 day after the trade |
| 2026-06-25 | MEHMEL ROBERT F | officer | Sale | 1,534 @ $96.41 | $148K | −0.2% of holding | −3.4% | not yet — horizon still open | 791,542 | Form 4 · filed 1 day after the trade |
| 2026-06-25 | MEHMEL ROBERT F | officer | Sale | 1,190 @ $97.27 | $116K | −0.2% of holding | −3.4% | not yet — horizon still open | 790,352 | Form 4 · filed 1 day after the trade |
| 2026-06-24 | MEHMEL ROBERT F | officer | Sale | 4,626 @ $95.45 | $442K | −0.6% of holding | −5.2% | not yet — horizon still open | 798,325 | Form 4 · filed 2 days after the trade |
| 2026-06-24 | MEHMEL ROBERT F | officer | Sale | 100 @ $96.03 | $10K | −0.0% of holding | −5.2% | not yet — horizon still open | 798,225 | Form 4 · filed 2 days after the trade |
| 2026-06-17 | MEHMEL ROBERT F | officer | Sale | 547 @ $95.37 | $52K | −0.1% of holding | −0.2% | not yet — horizon still open | 802,951 | Form 4 · filed 1 day after the trade |
| 2026-06-16 | MEHMEL ROBERT F | officer | Sale | 2,921 @ $95.36 | $279K | −0.4% of holding | −2.0% | not yet — horizon still open | 803,595 | Form 4 · filed 2 days after the trade |
| 2026-06-16 | MEHMEL ROBERT F | officer | Sale | 97 @ $96.25 | $9K | −0.0% of holding | −2.0% | not yet — horizon still open | 803,498 | Form 4 · filed 2 days after the trade |
| 2026-06-15 | MEHMEL ROBERT F | officer | Sale | 3,272 @ $95.40 | $312K | −0.4% of holding | −0.9% | not yet — horizon still open | 806,516 | Form 4 · filed 1 day after the trade |
| 2026-06-12 | KRAMER RONALD J | director | Sale | 51,029 @ $95.21 | $4.9M | −2.7% of holding | −4.2% | not yet — horizon still open | 1,833,268 | Form 4 · filed 3 days after the trade |
| 2026-06-12 | KRAMER RONALD J | director | Sale | 48,971 @ $94.62 | $4.6M | −2.7% of holding | −4.2% | not yet — horizon still open | 1,784,297 | Form 4 · filed 3 days after the trade |
| 2026-06-12 | MEHMEL ROBERT F | officer | Sale | 5,501 @ $95.18 | $524K | −0.7% of holding | −4.2% | not yet — horizon still open | 809,788 | Form 4 · filed 4 days after the trade |
| 2026-06-11 | Harris Brian G | officer | Sale | 7,500 @ $95.03 | $713K | −4.7% of holding | −6.9% | not yet — horizon still open | 151,149 | Form 4 · filed 4 days after the trade |
| 2026-03-05 | ALPERT HENRY A | director | Purchase | 1,000 @ $79.99 | $80K | +1.4% of holding | −6.8% | +8.7% | 71,479 | Form 4 · filed 4 days after the trade |
| 2026-02-17 | Durborow W. Christopher | officer | Sale | 10,000 @ $91.97 | $920K | −25.0% of holding | −19.4% | −2.5% | 29,963 | Form 4 · filed 1 day after the trade |
| 2026-02-13 | Grabowsky Louis J. | director | Sale | 11,000 @ $93.06 | $1.0M | −20.9% of holding | −20.2% | −4.2% | 41,670 | Form 4 · filed 4 days after the trade |
| 2026-02-12 | Taylor Michelle L | director | Sale | 1,650 @ $92.56 | $153K | −15.5% of holding | −19.1% | −1.0% | 9,023 | Form 4 · filed 5 days after the trade |
| 2026-02-09 | Kaplan Seth L. | officer | Sale | 7,086 @ $94.67 | $671K | −5.3% of holding | −19.1% | +1.5% | 127,661 | Form 4 · filed 2 days after the trade |
| 2026-02-09 | Kaplan Seth L. | officer | Sale | 4,274 @ $95.61 | $409K | −3.3% of holding | −19.1% | +1.5% | 123,387 | Form 4 · filed 2 days after the trade |
| 2026-02-09 | Kaplan Seth L. | officer | Sale | 3,240 @ $96.67 | $313K | −2.6% of holding | −19.1% | +1.5% | 120,147 | Form 4 · filed 2 days after the trade |
| 2026-02-09 | SIGHT JAMES W | director | Sale | 3,070 @ $96.15 | $295K | −18.1% of holding | −19.1% | +1.5% | 13,872 | Form 4 · filed 2 days after the trade |
| 2026-02-09 | Kaplan Seth L. | officer | Sale | 400 @ $97.46 | $39K | −0.3% of holding | −19.1% | +1.5% | 119,747 | Form 4 · filed 2 days after the trade |
| 2025-02-07 | Hegedus Samanta | director | Sale | 1,236 @ $79.47 | $98K | −5.1% of holding | −5.0% | −17.8% | 23,121 | Form 4 · filed 3 days after the trade |
| 2025-02-06 | TURNBULL CHERYL L | director | Sale | 3,000 @ $80.80 | $242K | −8.9% of holding | −6.4% | −19.1% | 30,730 | Form 4 · filed 1 day after the trade |
| 2025-02-06 | SIGHT JAMES W | director | Sale | 1,360 @ $81.00 | $110K | −8.1% of holding | −6.4% | −19.1% | 15,348 | Form 4 · filed 1 day after the trade |
| 2024-12-06 | Durborow W. Christopher | officer | Sale | 5,170 @ $80.38 | $416K | −10.4% of holding | −8.6% | −12.5% | 44,306 | Form 4 · filed same day |
The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.
39 award / exercise / gift records — not counted as purchases
Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.
| Date | Person | Role | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-02-18 | SIGHT JAMES W | director | Award / grant | 1,340 | 15,212 | Form 4 |
| 2026-02-18 | ALPERT HENRY A | director | Award / grant | 1,340 | 70,479 | Form 4 |
| 2026-02-18 | Diao H.C. Charles | director | Award / grant | 1,340 | 12,013 | Form 4 |
| 2026-02-18 | Hegedus Samanta | director | Award / grant | 1,340 | 26,055 | Form 4 |
| 2026-02-18 | Johnson Lacy M. | director | Award / grant | 1,340 | 26,443 | Form 4 |
| 2026-02-18 | Sullivan Kevin F | director | Award / grant | 1,340 | 44,102 | Form 4 |
| 2026-02-18 | TURNBULL CHERYL L | director | Award / grant | 1,340 | 33,039 | Form 4 |
| 2026-02-18 | Taylor Michelle L | director | Award / grant | 1,340 | 10,363 | Form 4 |
| 2026-02-18 | Grabowsky Louis J. | director | Award / grant | 1,340 | 43,010 | Form 4 |
| 2026-02-18 | Coben Jerome L | director | Award / grant | 1,340 | 19,459 | Form 4 |
| 2025-12-24 | KRAMER RONALD J | director | Gift | 5,000 | 1,884,297 | Form 4 |
| 2025-12-24 | KRAMER RONALD J | director | Gift | 62,785 | 1,889,297 | Form 4 |
| 2025-12-22 | Kaplan Seth L. | officer | Gift | 600 | 134,747 | Form 4 |
| 2025-12-04 | ALPERT HENRY A | director | Gift | 2,150 | 69,139 | Form 4 |
| 2025-11-30 | KRAMER RONALD J | director | Withheld for tax | 74,079 | 1,952,082 | Form 4 |
| 2025-11-30 | MEHMEL ROBERT F | officer | Withheld for tax | 26,928 | 815,289 | Form 4 |
| 2025-11-30 | Kaplan Seth L. | officer | Withheld for tax | 8,921 | 135,347 | Form 4 |
| 2025-11-30 | Harris Brian G | officer | Withheld for tax | 7,610 | 158,649 | Form 4 |
| 2025-11-30 | Durborow W. Christopher | officer | Withheld for tax | 4,343 | 39,963 | Form 4 |
| 2025-11-18 | MEHMEL ROBERT F | officer | Award / grant | 68,432 | 842,217 | Form 4 |
| 2025-11-18 | KRAMER RONALD J | director | Award / grant | 136,864 | 2,026,161 | Form 4 |
| 2025-03-11 | Johnson Lacy M. | director | Award / grant | 1,594 | 25,103 | Form 4 |
| 2025-03-11 | Sullivan Kevin F | director | Award / grant | 1,594 | 42,762 | Form 4 |
| 2025-03-11 | Grabowsky Louis J. | director | Award / grant | 1,594 | 52,670 | Form 4 |
| 2025-03-11 | Taylor Michelle L | director | Award / grant | 1,594 | 10,673 | Form 4 |
| 2025-03-11 | Diao H.C. Charles | director | Award / grant | 1,594 | 10,673 | Form 4 |
| 2025-03-11 | TURNBULL CHERYL L | director | Award / grant | 1,594 | 31,699 | Form 4 |
| 2025-03-11 | SIGHT JAMES W | director | Award / grant | 1,594 | 16,942 | Form 4 |
| 2025-03-11 | Hegedus Samanta | director | Award / grant | 1,594 | 24,715 | Form 4 |
| 2025-03-11 | Coben Jerome L | director | Award / grant | 1,594 | 18,119 | Form 4 |
| 2025-03-11 | ALPERT HENRY A | director | Award / grant | 1,594 | 71,289 | Form 4 |
| 2025-02-27 | ALPERT HENRY A | director | Gift | 1,466 | 69,695 | Form 4 |
| 2025-02-04 | KRAMER RONALD J | director | Withheld for tax | 378,213 | 1,889,297 | Form 4 |
| 2025-02-04 | MEHMEL ROBERT F | officer | Withheld for tax | 111,511 | 773,785 | Form 4 |
| 2025-02-04 | MEHMEL ROBERT F | officer | Award / grant | 151,382 | 885,296 | Form 4 |
| 2025-02-04 | MEHMEL ROBERT F | officer | Award / grant | 36,000 | 733,914 | Form 4 |
| 2025-02-04 | KRAMER RONALD J | director | Award / grant | 302,764 | 2,267,510 | Form 4 |
| 2025-02-04 | KRAMER RONALD J | director | Award / grant | 108,000 | 1,964,746 | Form 4 |
| 2024-12-05 | KRAMER RONALD J | director | Gift | 4,000 | 1,856,746 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.
Congressional disclosures
No congressional trades disclosed for this company.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.