Issued 2026-09-16 at $27.85 · now $27.85 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, PLAB has typically landed between $23.08 and $35.77 — a range of −17.1% to +28.4% from the issuance price $27.85.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
5,002 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 ($27.85) — 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 PLAB has typically landed a month from the 2026-09-16 close of $27.85 — the range is history, not a prediction.
- now $27.85 (+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). $27.83 (-0.1%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $25.38–$30.27
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $23.08–$35.77
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 5,002 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 | |||
| 2008-09-25 | −83.5% | −83.5% | +0.0% |
| 2008-09-26 | −81.3% | −81.3% | +0.0% |
| 2008-09-24 | −80.6% | −80.6% | +0.0% |
| 3 best | |||
| 2008-12-02 | +376.7% | −4.7% | +376.7% |
| 2008-12-03 | +341.5% | +0.0% | +400.0% |
| 2008-12-01 | +323.9% | −10.9% | +323.9% |
5,002 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
45%
−1.3%
n=20
Feb
40%
−1.7%
n=20
Mar
50%
−0.0%
n=20
Apr
50%
+5.0%
n=20
May
45%
+6.2%
n=20
Jun
40%
−1.8%
n=20
Jul
55%
+1.1%
n=20
Aug
40%
−4.0%
n=20
Sep
35%
−4.0%
n=20
Oct
45%
−0.9%
n=20
Nov
60%
+2.2%
n=20
Dec
65%
+26.9%
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-04-17 | ZHANG RUI | officer | Sale | 4,556 @ $46.70 | $213K | −14.4% of holding | −5.8% | not yet — horizon still open | 27,079 | Form 4 · filed 4 days after the trade |
| 2026-04-16 | Lee Kang Jyh | director | Sale | 10,000 @ $46.05 | $461K | −2.7% of holding | +3.8% | not yet — horizon still open | 365,850 | Form 4 · filed 4 days after the trade |
| 2026-04-16 | Lee Kang Jyh | director | Sale | 10,000 @ $45.80 | $458K | −2.7% of holding | +3.8% | not yet — horizon still open | 355,850 | Form 4 · filed 4 days after the trade |
| 2026-04-15 | Lee Kang Jyh | director | Sale | 10,000 @ $45.10 | $451K | −2.6% of holding | +6.5% | not yet — horizon still open | 375,850 | Form 4 · filed 2 days after the trade |
| 2026-04-14 | MACRICOSTAS CONSTANTINE S | director | Sale | 50,000 @ $45.35 | $2.3M | −100.0% of holding | +6.6% | not yet — horizon still open | 0 | Form 4 · filed same day |
| 2026-04-14 | Wang Hsueh-Chun | officer | Sale | 19,250 @ $45.30 | $872K | −14.5% of holding | +6.6% | not yet — horizon still open | 113,560 | Form 4 · filed 2 days after the trade |
| 2026-04-13 | Lee Kang Jyh | director | Sale | 5,000 @ $45.00 | $225K | −1.3% of holding | +6.2% | not yet — horizon still open | 385,850 | Form 4 · filed 2 days after the trade |
| 2026-04-13 | Rivera Eric | officer | Sale | 1,000 @ $44.77 | $45K | −0.7% of holding | +6.2% | not yet — horizon still open | 136,173 | Form 4 · filed 2 days after the trade |
| 2026-04-09 | Rivera Eric | officer | Sale | 40,635 @ $44.00 | $1.8M | −23.0% of holding | +12.1% | not yet — horizon still open | 136,173 | Form 4 · filed 4 days after the trade |
| 2026-04-09 | Wang Hsueh-Chun | officer | Sale | 11,875 @ $44.25 | $525K | −8.2% of holding | +12.1% | not yet — horizon still open | 132,810 | Form 4 · filed 4 days after the trade |
| 2026-04-09 | Lee Kang Jyh | director | Sale | 5,000 @ $44.00 | $220K | −1.3% of holding | +12.1% | not yet — horizon still open | 385,850 | Form 4 · filed 4 days after the trade |
| 2026-04-09 | Rivera Eric | officer | Sale | 882 @ $44.00 | $39K | −0.5% of holding | +12.1% | not yet — horizon still open | 176,808 | Form 4 · filed 4 days after the trade |
| 2026-04-08 | MACRICOSTAS GEORGE | officer | Sale | 109,194 @ $42.90 | $4.7M | −24.6% of holding | +8.1% | not yet — horizon still open | 334,068 | Form 4 · filed 2 days after the trade |
| 2026-04-08 | Wang Hsueh-Chun | officer | Sale | 10,000 @ $42.69 | $427K | −6.5% of holding | +8.1% | not yet — horizon still open | 144,685 | Form 4 · filed 2 days after the trade |
| 2026-04-08 | MACRICOSTAS GEORGE | officer | Sale | 6,500 @ $43.27 | $281K | −1.4% of holding | +8.1% | not yet — horizon still open | 448,762 | Form 4 · filed 2 days after the trade |
| 2026-04-08 | MACRICOSTAS GEORGE | officer | Sale | 5,500 @ $43.28 | $238K | −1.2% of holding | +8.1% | not yet — horizon still open | 443,262 | Form 4 · filed 2 days after the trade |
| 2026-04-08 | Lee Kang Jyh | director | Sale | 5,000 @ $43.27 | $216K | −1.3% of holding | +8.1% | not yet — horizon still open | 385,850 | Form 4 · filed 2 days after the trade |
| 2026-04-08 | ZHANG RUI | officer | Sale | 1,752 @ $43.50 | $76K | −5.2% of holding | +8.1% | not yet — horizon still open | 31,635 | Form 4 · filed 2 days after the trade |
| 2026-04-06 | Lee Kang Jyh | director | Sale | 5,000 @ $40.53 | $203K | −1.3% of holding | +16.1% | not yet — horizon still open | 385,850 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | TYSON MITCHELL G | director | Sale | 10,000 @ $42.31 | $423K | −23.1% of holding | +12.7% | not yet — horizon still open | 33,199 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Lee Kang Jyh | director | Sale | 5,000 @ $42.00 | $210K | −1.3% of holding | +12.7% | not yet — horizon still open | 385,850 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Wang Hsueh-Chun | officer | Sale | 4,186 @ $42.00 | $176K | −2.5% of holding | +12.7% | not yet — horizon still open | 160,499 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Wang Hsueh-Chun | officer | Sale | 4,100 @ $42.14 | $173K | −2.6% of holding | +12.7% | not yet — horizon still open | 156,399 | Form 4 · filed 2 days after the trade |
| 2026-04-01 | Wang Hsueh-Chun | officer | Sale | 1,714 @ $42.15 | $72K | −1.1% of holding | +12.7% | not yet — horizon still open | 154,685 | Form 4 · filed 2 days after the trade |
| 2026-03-26 | Lee Kang Jyh | director | Sale | 5,000 @ $40.80 | $204K | −1.3% of holding | +18.4% | not yet — horizon still open | 385,850 | Form 4 · filed 4 days after the trade |
| 2026-03-23 | Lee Kang Jyh | director | Sale | 10,000 @ $39.00 | $390K | −2.5% of holding | +19.0% | not yet — horizon still open | 385,850 | Form 4 · filed 2 days after the trade |
| 2026-03-19 | Lee Kang Jyh | director | Sale | 10,000 @ $35.80 | $358K | −2.4% of holding | +25.6% | not yet — horizon still open | 400,850 | Form 4 · filed 5 days after the trade |
| 2026-01-16 | Lee Kang Jyh | director | Sale | 10,000 @ $34.51 | $345K | −2.4% of holding | +9.5% | −18.0% | 410,850 | Form 4 · filed 4 days after the trade |
| 2026-01-16 | Park Han Kyung | officer | Sale | 6,250 @ $34.89 | $218K | −7.6% of holding | +9.5% | −18.0% | 75,500 | Form 4 · filed 4 days after the trade |
| 2026-01-15 | Lee Kang Jyh | director | Sale | 10,000 @ $34.13 | $341K | −2.3% of holding | +14.2% | −23.2% | 415,850 | Form 4 · filed 1 day after the trade |
| 2026-01-13 | Lee Kang Jyh | director | Sale | 10,000 @ $34.42 | $344K | −2.3% of holding | +13.5% | −21.9% | 425,850 | Form 4 · filed 2 days after the trade |
| 2026-01-13 | Park Han Kyung | officer | Sale | 7,500 @ $33.70 | $253K | −8.4% of holding | +13.5% | −21.9% | 81,750 | Form 4 · filed 7 days after the trade |
| 2026-01-12 | Lee Kang Jyh | director | Sale | 10,000 @ $33.05 | $331K | −2.2% of holding | +13.5% | −20.8% | 435,850 | Form 4 · filed 2 days after the trade |
| 2026-01-07 | Lee Kang Jyh | director | Sale | 10,000 @ $34.83 | $348K | −2.2% of holding | +6.7% | −24.3% | 445,850 | Form 4 · filed 2 days after the trade |
| 2026-01-06 | Paladino Mary | director | Sale | 11,250 @ $35.11 | $395K | −32.1% of holding | −0.3% | −26.3% | 23,820 | Form 4 · filed 1 day after the trade |
| 2026-01-06 | Lee Kang Jyh | director | Sale | 10,000 @ $35.41 | $354K | −2.1% of holding | −0.3% | −26.3% | 455,850 | Form 4 · filed 1 day after the trade |
| 2026-01-06 | TYSON MITCHELL G | director | Sale | 5,000 @ $35.21 | $176K | −10.4% of holding | −0.3% | −26.3% | 43,199 | Form 4 · filed 1 day after the trade |
| 2026-01-05 | Lee Kang Jyh | director | Sale | 10,000 @ $33.90 | $339K | −2.1% of holding | +1.9% | −24.7% | 465,850 | Form 4 · filed 2 days after the trade |
| 2026-01-02 | Lee Kang Jyh | director | Sale | 8,750 @ $33.54 | $293K | −1.8% of holding | +4.4% | −27.6% | 475,850 | Form 4 · filed 4 days after the trade |
| 2025-12-22 | Lee Kang Jyh | director | Sale | 8,750 @ $34.31 | $300K | −1.8% of holding | +0.2% | −12.4% | 484,600 | Form 4 · filed 1 day after the trade |
| 2025-12-15 | Lee Kang Jyh | director | Sale | 20,000 @ $36.45 | $729K | −3.9% of holding | −8.9% | −25.1% | 493,350 | Form 4 · filed 1 day after the trade |
| 2025-12-12 | Progler Christopher J | officer | Sale | 25,000 @ $35.78 | $895K | −13.1% of holding | −15.0% | −26.9% | 165,591 | Form 4 · filed 4 days after the trade |
| 2025-12-12 | Lee Kang Jyh | director | Sale | 20,000 @ $38.53 | $771K | −3.9% of holding | −15.0% | −26.9% | 493,350 | Form 4 · filed 4 days after the trade |
| 2025-12-12 | Park Han Kyung | officer | Sale | 13,750 @ $37.99 | $522K | −13.3% of holding | −15.0% | −26.9% | 89,250 | Form 4 · filed 4 days after the trade |
| 2025-12-12 | TYSON MITCHELL G | director | Sale | 5,000 @ $36.17 | $181K | −9.6% of holding | −15.0% | −26.9% | 46,927 | Form 4 · filed 4 days after the trade |
| 2025-12-01 | Progler Christopher J | officer | Sale | 10,000 @ $22.52 | $225K | −5.0% of holding | +42.1% | +31.6% | 190,591 | Form 4 · filed 1 day after the trade |
| 2025-10-07 | TYSON MITCHELL G | director | Sale | 5,000 @ $25.04 | $125K | −8.8% of holding | −1.4% | +88.9% | 51,927 | Form 4 · filed 2 days after the trade |
| 2025-10-06 | Lee Kang Jyh | director | Sale | 10,000 @ $25.33 | $253K | −1.9% of holding | −10.2% | +71.6% | 513,350 | Form 4 · filed 2 days after the trade |
| 2025-10-02 | Paladino Mary | director | Sale | 42,750 @ $24.00 | $1.0M | −55.8% of holding | −4.7% | +65.7% | 33,798 | Form 4 · filed 4 days after the trade |
| 2025-09-03 | Park Han Kyung | officer | Sale | 15,000 @ $22.00 | $330K | −12.7% of holding | +8.4% | +54.6% | 103,000 | Form 4 · filed 2 days after the trade |
| 2025-09-02 | Progler Christopher J | officer | Sale | 10,000 @ $21.93 | $219K | −4.7% of holding | +1.1% | +64.9% | 200,591 | Form 4 · filed 2 days after the trade |
| 2025-08-29 | Lee Kang Jyh | director | Sale | 8,750 @ $23.20 | $203K | −1.6% of holding | −2.3% | +49.5% | 523,350 | Form 4 · filed 5 days after the trade |
| 2025-07-28 | Progler Christopher J | officer | Sale | 10,000 @ $21.07 | $211K | +5.0% of holding | +4.2% | +58.8% | 210,591 | Form 4 · filed 1 day after the trade |
| 2025-07-10 | TYSON MITCHELL G | director | Sale | 15,000 @ $19.97 | $300K | −20.9% of holding | −0.2% | +49.0% | 56,927 | Form 4 · filed 1 day after the trade |
| 2025-07-02 | MACRICOSTAS CONSTANTINE S | director | Sale | 29,500 @ $20.20 | $596K | −100.0% of holding | −2.0% | +48.3% | 0 | Form 4 · filed 1 day after the trade |
| 2025-06-27 | Garcia David A. | director | Purchase | 2,650 @ $19.00 | $50K | +35.1% of holding | +10.8% | +67.1% | 10,198 | Form 4 · filed 3 days after the trade |
| 2025-06-20 | Lee Kang Jyh | director | Sale | 4,882 @ $18.35 | $90K | −0.9% of holding | +0.3% | +66.4% | 532,100 | Form 4 · filed 4 days after the trade |
| 2025-06-18 | Lee Kang Jyh | director | Sale | 28,118 @ $18.40 | $517K | −5.0% of holding | +1.2% | +67.4% | 532,100 | Form 4 · filed 2 days after the trade |
| 2025-04-17 | FIEDEROWICZ WALTER M | director | Sale | 5,000 @ $17.79 | $89K | −50.0% of holding | +2.3% | +3.7% | 5,000 | Form 4 · filed same day |
| 2025-04-15 | FIEDEROWICZ WALTER M | director | Sale | 7,548 @ $17.87 | $135K | −43.0% of holding | +5.9% | +6.2% | 10,000 | Form 4 · filed 2 days after the trade |
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.
88 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 |
|---|---|---|---|---|---|---|
| 2026-04-17 | Paladino Mary | director | Disposition | 22,548 | 1,272 | Form 4 |
| 2026-04-13 | Lee Kang Jyh | director | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-13 | Rivera Eric | officer | Option exercise | 1,000 | 137,173 | Form 4 |
| 2026-04-13 | Liao Daniel JL | director | Award / grant | 3,722 | 72,504 | Form 4 |
| 2026-04-13 | TYSON MITCHELL G | director | Award / grant | 3,722 | 36,921 | Form 4 |
| 2026-04-13 | Rivera Eric | officer | Option exercise | 1,000 | 0 | Form 4 |
| 2026-04-13 | LEWIS ADAM M | director | Award / grant | 3,722 | 34,792 | Form 4 |
| 2026-04-13 | MACRICOSTAS CONSTANTINE S | director | Award / grant | 3,722 | 414,617 | Form 4 |
| 2026-04-13 | Lee Kang Jyh | director | Option exercise | 5,000 | 0 | Form 4 |
| 2026-04-13 | Almeida Michelle | director | Award / grant | 3,722 | 4,956 | Form 4 |
| 2026-04-13 | Garcia David A. | director | Award / grant | 3,722 | 15,192 | Form 4 |
| 2026-04-09 | Lee Kang Jyh | director | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-09 | Lee Kang Jyh | director | Option exercise | 5,000 | 5,000 | Form 4 |
| 2026-04-08 | Lee Kang Jyh | director | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-06 | Lee Kang Jyh | director | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-06 | Lee Kang Jyh | director | Option exercise | 5,000 | 15,000 | Form 4 |
| 2026-04-06 | Lee Kang Jyh | director | Option exercise | 5,000 | 10,000 | Form 4 |
| 2026-04-02 | MACRICOSTAS CONSTANTINE S | director | Gift | 37,000 | 410,895 | Form 4 |
| 2026-04-01 | Lee Kang Jyh | director | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-01 | MACRICOSTAS CONSTANTINE S | director | Gift | 13,000 | 447,895 | Form 4 |
| 2026-04-01 | Lee Kang Jyh | director | Option exercise | 5,000 | 0 | Form 4 |
| 2026-03-26 | Lee Kang Jyh | director | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-03-26 | Lee Kang Jyh | director | Option exercise | 5,000 | 5,000 | Form 4 |
| 2026-02-09 | Alesio Todd Anthony | officer | Award / grant | 983 | 17,946 | Form 4 |
| 2026-02-09 | ZHANG RUI | officer | Award / grant | 1,467 | 33,387 | Form 4 |
| 2026-02-09 | Rivera Eric | officer | Award / grant | 22,641 | 177,690 | Form 4 |
| 2026-01-20 | Almeida Michelle | director | Award / grant | 1,234 | 1,234 | Form 4 |
| 2026-01-20 | Liao Daniel JL | director | Award / grant | 1,234 | 68,782 | Form 4 |
| 2026-01-03 | LEWIS ADAM M | director | Award / grant | 1,272 | 31,070 | Form 4 |
| 2026-01-03 | MACRICOSTAS GEORGE | officer | Award / grant | 177,432 | 455,262 | Form 4 |
| 2026-01-03 | MACRICOSTAS CONSTANTINE S | director | Award / grant | 1,272 | 460,895 | Form 4 |
| 2026-01-03 | Garcia David A. | director | Award / grant | 1,272 | 11,470 | Form 4 |
| 2026-01-03 | Wang Hsueh-Chun | officer | Award / grant | 28,435 | 164,685 | Form 4 |
| 2026-01-03 | Rivera Eric | officer | Award / grant | 40,407 | 155,049 | Form 4 |
| 2026-01-03 | TYSON MITCHELL G | director | Award / grant | 1,272 | 48,199 | Form 4 |
| 2026-01-03 | Paladino Mary | director | Award / grant | 1,272 | 35,070 | Form 4 |
| 2026-01-03 | Park Han Kyung | officer | Award / grant | 23,945 | 113,195 | Form 4 |
| 2026-01-02 | Rivera Eric | officer | Withheld for tax | 2,978 | 114,642 | Form 4 |
| 2026-01-02 | Rivera Eric | officer | Withheld for tax | 1,372 | 118,639 | Form 4 |
| 2026-01-02 | Rivera Eric | officer | Withheld for tax | 1,019 | 117,620 | 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.