Issued 2026-09-16 at $55.48 · now $55.48 (2026-09-16, +0.0% since)
Based on its own history, a month from the 2026-09-16 close, ALRM has typically landed between $48.61 and $63.14 — a range of −12.4% to +13.8% from the issuance price $55.48.
- Actual close
- Typical path (median)
- Middle 50% of outcomes
- 90% range
2,801 overlapping 1 month windows · 2015-06-26 – 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 ($55.48) — 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 ALRM has typically landed a month from the 2026-09-16 close of $55.48 — the range is history, not a prediction.
- now $55.48 (+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). $55.1 (-0.7%)
- middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $51.86–$58.35
- 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $48.61–$63.14
| Start | Return | Max drop | Max rise |
|---|---|---|---|
| 3 worst | |||
| 2015-08-27 | −31.9% | −31.9% | +0.7% |
| 2015-08-28 | −31.8% | −31.8% | +1.3% |
| 2015-08-31 | −31.5% | −32.7% | +0.0% |
| 3 best | |||
| 2015-10-27 | +56.6% | +0.0% | +56.6% |
| 2016-02-08 | +53.0% | −0.7% | +57.0% |
| 2016-02-11 | +48.7% | +0.0% | +58.1% |
2,801 overlapping windows · 2015-06-26 – 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 ~12 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-24 | Trundle Stephen | director | Sale | 50,000 @ $57.67 | $2.9M | −13.3% of holding | not yet — horizon still open | not yet — horizon still open | 324,842 | Form 4 · filed 1 day after the trade |
| 2026-08-12 | Bradley Kevin Christopher | officer | Sale | 5,400 @ $55.07 | $297K | −6.5% of holding | +0.9% | not yet — horizon still open | 78,222 | Form 4 · filed 2 days after the trade |
| 2026-07-02 | Bradley Kevin Christopher | officer | Sale | 724 @ $48.46 | $35K | −0.9% of holding | +10.0% | not yet — horizon still open | 83,622 | Form 4 · filed same day |
| 2026-06-12 | Ramos Daniel | officer | Sale | 2,000 @ $46.50 | $93K | −3.6% of holding | +10.0% | not yet — horizon still open | 53,099 | Form 4 · filed same day |
| 2026-06-10 | Ramos Daniel | officer | Sale | 8,000 @ $46.23 | $370K | −12.7% of holding | +9.7% | not yet — horizon still open | 55,099 | Form 4 · filed 2 days after the trade |
| 2026-06-10 | Bradley Kevin Christopher | officer | Sale | 2,200 @ $46.15 | $102K | −2.5% of holding | +9.7% | not yet — horizon still open | 84,346 | Form 4 · filed 2 days after the trade |
| 2026-05-26 | Trundle Stephen | director | Sale | 6,073 @ $43.78 | $266K | −1.8% of holding | +2.4% | not yet — horizon still open | 324,842 | Form 4 · filed 2 days after the trade |
| 2026-05-26 | Kerzner Daniel | officer | Sale | 3,944 @ $43.78 | $173K | −3.8% of holding | +2.4% | not yet — horizon still open | 101,141 | Form 4 · filed 2 days after the trade |
| 2026-05-26 | Ramos Daniel | officer | Sale | 2,532 @ $43.78 | $111K | −3.9% of holding | +2.4% | not yet — horizon still open | 63,099 | Form 4 · filed 2 days after the trade |
| 2026-05-18 | Trundle Stephen | director | Sale | 2,944 @ $43.56 | $128K | −0.9% of holding | +2.9% | not yet — horizon still open | 330,915 | Form 4 · filed 2 days after the trade |
| 2026-05-18 | Kerzner Daniel | officer | Sale | 1,915 @ $43.56 | $83K | −1.8% of holding | +2.9% | not yet — horizon still open | 105,085 | Form 4 · filed 2 days after the trade |
| 2026-05-18 | Ramos Daniel | officer | Sale | 1,561 @ $43.56 | $68K | −2.3% of holding | +2.9% | not yet — horizon still open | 65,631 | Form 4 · filed 2 days after the trade |
| 2026-03-18 | NEVIN DARIUS G | director | Sale | 36,000 @ $46.17 | $1.7M | −59.6% of holding | −6.7% | not yet — horizon still open | 24,375 | Form 4 · filed 1 day after the trade |
| 2026-03-18 | Bradley Kevin Christopher | officer | Sale | 1,510 @ $45.97 | $69K | −2.8% of holding | −6.7% | not yet — horizon still open | 51,546 | Form 4 · filed 1 day after the trade |
| 2025-12-16 | BEDELL JEFFREY A | officer | Sale | 22,727 @ $51.82 | $1.2M | −4.3% of holding | −4.4% | −25.3% | 505,805 | Form 4 · filed 2 days after the trade |
| 2025-12-12 | BEDELL JEFFREY A | officer | Sale | 2,273 @ $52.51 | $119K | −0.4% of holding | −3.5% | −22.5% | 505,805 | Form 4 · filed 4 days after the trade |
| 2025-12-12 | Evans Stephen C. | director | Sale | 1,154 @ $52.27 | $60K | −15.9% of holding | −3.5% | −22.5% | 6,123 | Form 4 · filed 4 days after the trade |
| 2025-11-20 | Trundle Stephen | director | Purchase | 9,900 @ $48.06 | $476K | +0.8% of holding | +4.5% | −23.6% | 1,315,243 | Form 4 · filed same day |
| 2025-11-20 | Trundle Stephen | director | Purchase | 100 @ $48.66 | $5K | +0.0% of holding | +4.5% | −23.6% | 1,315,343 | Form 4 · filed same day |
| 2025-11-19 | Trundle Stephen | director | Purchase | 12,469 @ $48.53 | $605K | +1.0% of holding | +6.4% | −22.2% | 1,305,343 | Form 4 · filed 1 day after the trade |
| 2025-11-18 | Trundle Stephen | director | Purchase | 3,531 @ $48.57 | $172K | +0.3% of holding | +6.3% | −23.7% | 1,292,874 | Form 4 · filed 2 days after the trade |
| 2025-11-13 | Kerzner Daniel | officer | Sale | 10,000 @ $50.33 | $503K | −16.1% of holding | +0.8% | −23.6% | 52,000 | Form 4 · filed 1 day after the trade |
| 2025-11-12 | Kerzner Daniel | officer | Sale | 20,004 @ $50.29 | $1.0M | −27.8% of holding | +4.2% | −24.0% | 52,000 | Form 4 · filed 2 days after the trade |
| 2025-07-02 | Bradley Kevin Christopher | officer | Sale | 754 @ $56.75 | $43K | −1.4% of holding | −5.5% | −21.1% | 53,056 | Form 4 · filed same day |
| 2025-06-11 | Evans Stephen C. | director | Sale | 1,000 @ $59.64 | $60K | −12.1% of holding | −11.1% | −24.9% | 7,277 | Form 4 · filed 1 day after the trade |
| 2025-05-27 | Ramos Daniel | officer | Sale | 7,000 @ $57.68 | $404K | −14.2% of holding | −6.1% | −22.6% | 42,192 | Form 4 · filed same day |
| 2025-05-23 | Trundle Stephen | director | Sale | 3,644 @ $56.66 | $206K | −1.3% of holding | −4.3% | −26.0% | 268,859 | Form 4 · filed 4 days after the trade |
| 2025-05-23 | Kerzner Daniel | officer | Sale | 2,213 @ $56.66 | $125K | −3.0% of holding | −4.3% | −26.0% | 72,004 | Form 4 · filed 4 days after the trade |
| 2025-05-23 | BEDELL JEFFREY A | officer | Sale | 2,204 @ $56.66 | $125K | −0.4% of holding | −4.3% | −26.0% | 505,805 | Form 4 · filed 4 days after the trade |
| 2025-05-23 | Ramos Daniel | officer | Sale | 1,762 @ $56.66 | $100K | −3.5% of holding | −4.3% | −26.0% | 49,192 | Form 4 · filed 4 days after the trade |
| 2025-05-16 | Trundle Stephen | director | Sale | 3,626 @ $59.51 | $216K | −1.4% of holding | −5.1% | −29.4% | 247,503 | Form 4 · filed same day |
| 2025-05-16 | Kerzner Daniel | officer | Sale | 2,019 @ $59.51 | $120K | −3.4% of holding | −5.1% | −29.4% | 56,717 | Form 4 · filed same day |
| 2025-05-16 | BEDELL JEFFREY A | officer | Sale | 2,019 @ $59.51 | $120K | −0.4% of holding | −5.1% | −29.4% | 490,509 | Form 4 · filed same day |
| 2025-05-16 | Ramos Daniel | officer | Sale | 1,646 @ $59.51 | $98K | −4.3% of holding | −5.1% | −29.4% | 36,954 | Form 4 · filed same day |
| 2025-05-16 | Bradley Kevin Christopher | officer | Sale | 390 @ $59.51 | $23K | −0.7% of holding | −5.1% | −29.4% | 53,810 | Form 4 · filed same day |
| 2025-05-14 | Ramos Daniel | officer | Sale | 6,890 @ $60.06 | $414K | −15.1% of holding | −7.1% | −33.3% | 38,600 | Form 4 · filed 2 days after the trade |
| 2025-04-02 | Trundle Stephen | director | Sale | 1,553 @ $55.49 | $86K | −0.6% of holding | −2.7% | −25.5% | 251,129 | Form 4 · filed 2 days after the trade |
| 2025-04-02 | Kerzner Daniel | officer | Sale | 932 @ $55.49 | $52K | −1.6% of holding | −2.7% | −25.5% | 58,736 | Form 4 · filed 2 days after the trade |
| 2025-04-02 | Ramos Daniel | officer | Sale | 777 @ $55.49 | $43K | −1.9% of holding | −2.7% | −25.5% | 40,323 | Form 4 · filed 2 days after the trade |
| 2025-04-02 | BEDELL JEFFREY A | officer | Sale | 777 @ $55.49 | $43K | −0.2% of holding | −2.7% | −25.5% | 492,528 | Form 4 · filed 2 days after the trade |
| 2025-03-12 | Valenzuela Steve | officer | Sale | 3,436 @ $58.45 | $201K | −8.4% of holding | −7.2% | −22.2% | 37,500 | Form 4 · filed 2 days after the trade |
| 2025-03-06 | Valenzuela Steve | officer | Sale | 1,564 @ $59.57 | $93K | −4.0% of holding | −1.9% | −16.9% | 37,500 | Form 4 · filed 4 days after the trade |
| 2024-12-13 | Kerzner Daniel | officer | Sale | 32,851 @ $66.40 | $2.2M | −35.5% of holding | −6.8% | −15.6% | 59,668 | Form 4 · filed 4 days after the trade |
| 2024-12-10 | Trundle Stephen | director | Sale | 45,501 @ $68.15 | $3.1M | −15.2% of holding | −9.2% | −16.5% | 254,681 | Form 4 · filed 1 day after the trade |
| 2024-12-10 | Trundle Stephen | director | Sale | 1,999 @ $68.81 | $138K | −0.8% of holding | −9.2% | −16.5% | 252,682 | Form 4 · filed 1 day 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.
54 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 |
|---|---|---|---|---|---|---|
| 2026-09-02 | Trundle Stephen | director | Gift | 2,000 | 322,842 | Form 4 |
| 2026-08-24 | Trundle Stephen | director | Option exercise | 50,000 | 374,842 | Form 4 |
| 2026-08-24 | Trundle Stephen | director | Option exercise | 50,000 | 0 | Form 4 |
| 2026-06-04 | Clarke Donald E | director | Award / grant | 3,222 | 18,175 | Form 4 |
| 2026-06-04 | NEVIN DARIUS G | director | Award / grant | 3,222 | 27,597 | Form 4 |
| 2026-06-04 | Whall Timothy J. | director | Award / grant | 3,222 | 14,404 | Form 4 |
| 2026-06-04 | McAdam Timothy P | director | Award / grant | 3,222 | 103,838 | Form 4 |
| 2026-06-04 | WU Simone | director | Award / grant | 3,222 | 15,855 | Form 4 |
| 2026-06-04 | Evans Stephen C. | director | Award / grant | 3,222 | 9,345 | Form 4 |
| 2026-06-04 | Harper Cecile Burleigh | director | Award / grant | 3,222 | 8,036 | Form 4 |
| 2026-04-08 | Trundle Stephen | director | Award / grant | 65,000 | 333,859 | Form 4 |
| 2026-04-08 | Ramos Daniel | officer | Award / grant | 25,000 | 67,192 | Form 4 |
| 2026-04-08 | Kerzner Daniel | officer | Award / grant | 55,000 | 107,000 | Form 4 |
| 2026-04-08 | Bradley Kevin Christopher | officer | Award / grant | 35,000 | 86,546 | Form 4 |
| 2026-03-18 | NEVIN DARIUS G | director | Option exercise | 36,000 | 60,375 | Form 4 |
| 2026-03-18 | NEVIN DARIUS G | director | Option exercise | 36,000 | 0 | Form 4 |
| 2025-12-16 | BEDELL JEFFREY A | officer | Option exercise | 22,727 | 528,532 | Form 4 |
| 2025-12-16 | BEDELL JEFFREY A | officer | Option exercise | 22,727 | 0 | Form 4 |
| 2025-12-12 | BEDELL JEFFREY A | officer | Option exercise | 2,273 | 508,078 | Form 4 |
| 2025-12-12 | BEDELL JEFFREY A | officer | Option exercise | 2,273 | 22,727 | Form 4 |
| 2025-11-25 | McAdam Timothy P | director | Gift | 7,000 | 100,616 | Form 4 |
| 2025-11-13 | Kerzner Daniel | officer | Option exercise | 10,000 | 62,000 | Form 4 |
| 2025-11-13 | Kerzner Daniel | officer | Option exercise | 10,000 | 0 | Form 4 |
| 2025-06-05 | WU Simone | director | Award / grant | 2,510 | 12,633 | Form 4 |
| 2025-06-05 | Whall Timothy J. | director | Award / grant | 2,510 | 11,182 | Form 4 |
| 2025-06-05 | Harper Cecile Burleigh | director | Award / grant | 2,510 | 4,814 | Form 4 |
| 2025-06-05 | Clarke Donald E | director | Award / grant | 2,510 | 14,953 | Form 4 |
| 2025-06-05 | Evans Stephen C. | director | Award / grant | 2,510 | 8,277 | Form 4 |
| 2025-06-05 | NEVIN DARIUS G | director | Award / grant | 2,510 | 24,375 | Form 4 |
| 2025-06-05 | McAdam Timothy P | director | Award / grant | 2,510 | 107,616 | Form 4 |
| 2025-05-22 | Kerzner Daniel | officer | Award / grant | 22,500 | 22,500 | Form 4 |
| 2025-05-22 | BEDELL JEFFREY A | officer | Award / grant | 17,500 | 508,009 | Form 4 |
| 2025-05-22 | Trundle Stephen | director | Award / grant | 40,000 | 40,000 | Form 4 |
| 2025-05-22 | Kerzner Daniel | officer | Award / grant | 17,500 | 74,217 | Form 4 |
| 2025-05-22 | BEDELL JEFFREY A | officer | Award / grant | 22,500 | 22,500 | Form 4 |
| 2025-05-22 | Ramos Daniel | officer | Award / grant | 14,000 | 50,954 | Form 4 |
| 2025-05-22 | Ramos Daniel | officer | Award / grant | 14,000 | 14,000 | Form 4 |
| 2025-05-22 | Trundle Stephen | director | Award / grant | 25,000 | 272,503 | Form 4 |
| 2025-05-14 | Ramos Daniel | officer | Option exercise | 3,500 | 45,490 | Form 4 |
| 2025-05-14 | Ramos Daniel | officer | Option exercise | 1,667 | 41,990 | 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.