T-Mobile US insider activity
What the executives and directors of T-Mobile US actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$568M
net open-market flow, 12 m
2 open-market buys, 12 m
74%
of sale value on 10b5-1 plans, 12 m
143 days since an insider bought, whole record
The tape: three years of insider trades
Open-market buy
Discretionary sale
Planned sale (10b5-1)
Reported-price path
Routine
Every marker sits at the price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the grey strip is the routine flow (grants, vestings, tax withholding and gifts) that a headline gets wrong by counting it as selling.
The 103 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Sep 10, 2026 | Nelson Mark Wolfe | 103 |
| Sep 10, 2026 | Drobac Daniel James | 2 |
| Sep 1, 2026 | Almeida Andre | 530 |
| Aug 25, 2026 | Drobac Daniel James | 171 |
| Aug 15, 2026 | Drobac Daniel James | 88 |
| Aug 1, 2026 | Sambar Christopher | 41K |
| Jun 16, 2026 | Datar Srikant M. | 1,384 |
| Jun 16, 2026 | CLAURE RAUL MARCELO | 1,384 |
| Jun 16, 2026 | KAVANAUGH JAMES J | 1,384 |
| Jun 16, 2026 | Taylor Teresa | 1,384 |
| Jun 16, 2026 | Dannenfeldt Thomas | 1,384 |
| Jun 16, 2026 | Long Letitia A | 1,656 |
| Jun 11, 2026 | Nelson Mark Wolfe | 98 |
| Jun 6, 2026 | Dannenfeldt Thomas | 311 |
| May 1, 2026 | Drobac Daniel James | 37 |
| Mar 12, 2026 | Nelson Mark Wolfe | 86 |
| Mar 1, 2026 | Gopalan Srini | 2,835 |
| Mar 1, 2026 | Almeida Andre | 367 |
| Feb 25, 2026 | Drobac Daniel James | 389 |
| Feb 15, 2026 | SAW JOHN | 17K |
| Feb 15, 2026 | Osvaldik Peter | 44K |
| Feb 15, 2026 | Gopalan Srini | 63K |
| Feb 15, 2026 | King Deeanne | 19K |
| Feb 15, 2026 | Freier Jon | 41K |
| Feb 15, 2026 | Katz Michael J. | 52K |
| Feb 15, 2026 | Nelson Mark Wolfe | 43K |
| Feb 15, 2026 | Almeida Andre | 14K |
| Feb 15, 2026 | Drobac Daniel James | 3,837 |
| Dec 11, 2025 | Nelson Mark Wolfe | 68 |
| Dec 9, 2025 | Osvaldik Peter | 1,200 |
| Dec 3, 2025 | SIEVERT G MICHAEL | 66K |
| Nov 10, 2025 | SIEVERT G MICHAEL | 43K |
| Nov 9, 2025 | SIEVERT G MICHAEL | 234K |
| Nov 1, 2025 | Gopalan Srini | 41K |
| Nov 1, 2025 | Drobac Daniel James | 59 |
| Sep 19, 2025 | Almeida Andre | 14K |
| Sep 11, 2025 | Nelson Mark Wolfe | 48 |
| Sep 1, 2025 | Almeida Andre | 8,088 |
| Aug 25, 2025 | Drobac Daniel James | 215 |
| Jun 13, 2025 | Almeida Andre | 155 |
| Jun 12, 2025 | Nelson Mark Wolfe | 50 |
| Jun 6, 2025 | Datar Srikant M. | 1,038 |
| Jun 6, 2025 | CLAURE RAUL MARCELO | 1,038 |
| Jun 6, 2025 | KAVANAUGH JAMES J | 1,038 |
| Jun 6, 2025 | Taylor Teresa | 1,038 |
| Jun 6, 2025 | Dannenfeldt Thomas | 1,038 |
| Jun 6, 2025 | Long Letitia A | 1,242 |
| Jun 6, 2025 | Almeida Andre | 1,038 |
| May 1, 2025 | Drobac Daniel James | 899 |
| Apr 1, 2025 | SIEVERT G MICHAEL | 178K |
| Apr 1, 2025 | CANO NESTOR | 11K |
| Apr 1, 2025 | King Deeanne | 11K |
| Apr 1, 2025 | Freier Jon | 23K |
| Apr 1, 2025 | Katz Michael J. | 23K |
| Apr 1, 2025 | Nelson Mark Wolfe | 11K |
| Apr 1, 2025 | Field Callie R | 23K |
| Apr 1, 2025 | Ewaldsson Ulf | 23K |
| Mar 13, 2025 | Nelson Mark Wolfe | 44 |
| Mar 6, 2025 | King Deeanne | 600 |
| Mar 1, 2025 | Gopalan Srini | 39K |
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
The chart, in numbers
| Flow | Shares |
|---|---|
| From holdings | 2.3M |
| Granted | 481K |
| Bought on market | 15K |
| Withheld for tax | 159K |
| Planned sales (10b5-1) | 1.8M |
| Discretionary sales | 686K |
| Gifts | 110K |
Skin in the game
Directly held shares as reported after each trade, indexed to 100 at the start of the window, up to five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
The chart, in numbers
| Insider | Start of the window | Latest reported | Indexed, start = 100 |
|---|---|---|---|
| DEUTSCHE TELEKOM AG | 650M | 582M | 89.6 |
| T-Mobile Global Zwischenholding GmbH | 650M | 582M | 89.6 |
| T-Mobile Global Holding GmbH | 650M | 582M | 89.6 |
| Deutsche Telekom Holding B.V. | 650M | 582M | 89.6 |
| CLAURE RAUL MARCELO | 2.0M | 1.8M | 90.8 |
Who holds what
the 14 largest holdings of 26| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| DEUTSCHE TELEKOM AG Last trade Oct 29, 2025 | Director | – | – | $408M | net selling over the year: 0 months buying, 2 months selling | Oct 29, 2025 |
| T-Mobile Global Zwischenholding GmbH Last trade Feb 27, 2018 | Director | – | – | – | Feb 27, 2018 | |
| T-Mobile Global Holding GmbH | Director | – | – | – | – | |
| Deutsche Telekom Holding B.V. | Director | 582M | – | – | – | |
| CLAURE RAUL MARCELO Last trade Feb 12, 2026 | Director | 2.7M | – | $120M | net selling over the year: 0 months buying, 1 month selling | Feb 12, 2026 |
| Freier Jon Chief Operating Officer Last trade May 21, 2026 | COO | 217K | – | $912K | net selling over the year: 0 months buying, 1 month selling | May 21, 2026 |
| Katz Michael J. Chief Bus. and Prod. Officer Last trade May 1, 2026 | Officer | 182K | – | $1.5M | net selling over the year: 0 months buying, 2 months selling | May 1, 2026 |
| CANO NESTOR EVP, Transformation and CIDO Last trade Feb 14, 2025 | Officer | 181K | – | – | Feb 14, 2025 | |
| Gopalan Srini President and CEO Last trade Nov 6, 2025 | CEO | 145K | $2.0M | – | net buying over the year: 1 month buying, 0 months selling | Nov 6, 2025 |
| SIEVERT G MICHAEL President and CEO Last trade Feb 24, 2026 | CEO | 126K | – | $30M | net selling over the year: 0 months buying, 2 months selling | Feb 24, 2026 |
| Field Callie R President, Business Group Last trade Jul 29, 2025 | Officer | 111K | – | – | Jul 29, 2025 | |
| Ewaldsson Ulf President, Technology Last trade Feb 21, 2025 | Officer | 67K | – | – | Feb 21, 2025 | |
| Nelson Mark Wolfe Chief Legal Officer & GC Last trade Feb 24, 2026 | Officer | 66K | – | $4.2M | net selling over the year: 0 months buying, 1 month selling | Feb 24, 2026 |
| King Deeanne Chief People Officer Last trade Aug 8, 2024 | Officer | 65K | – | – | Aug 8, 2024 |
Open-market trade log
the 60 most recent of 3,418| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Sep 10, 2026 | Drobac Daniel James (Officer) 772 shares $178.33 +0.0% since trade filed Sep 14, 2026 | Discretionary sale | 772 | $178.33 | $138K | +0.0% | Sep 14, 2026 |
| May 21, 2026 | Freier Jon (COO) 4,799 shares $190.00 −6.1% since trade filed May 26, 2026 | Planned sale (10b5-1) | 4,799 | $190.00 | $912K | −6.1% | May 26, 2026 |
| May 1, 2026 | Katz Michael J. (Officer) 5,000 shares $195.81 −8.9% since trade filed May 4, 2026 | Discretionary sale | 5,000 | $195.81 | $979K | −8.9% | May 4, 2026 |
| May 1, 2026 | Almeida Andre (Officer) 5,097 shares $196.18 −9.1% since trade filed May 4, 2026 | Open-market buy | 5,097 | $196.18 | $1.0M | −9.1% | May 4, 2026 |
| Mar 10, 2026 | Datar Srikant M. (Director) 1,000 shares $218.25 −18.3% since trade filed Mar 12, 2026 | Discretionary sale | 1,000 | $218.25 | $218K | −18.3% | Mar 12, 2026 |
| Mar 4, 2026 | Datar Srikant M. (Director) 3,291 shares $221.10 −19.3% since trade filed Mar 6, 2026 | Discretionary sale | 3,291 | $221.10 | $728K | −19.3% | Mar 6, 2026 |
| Feb 24, 2026 | SIEVERT G MICHAEL (Director) 1,089 shares $221.85 −19.6% since trade filed Feb 25, 2026 | Discretionary sale | 1,089 | $221.85 | $242K | −19.6% | Feb 25, 2026 |
| Feb 24, 2026 | Nelson Mark Wolfe (Officer) 2,329 shares $222.38 −19.8% since trade filed Feb 25, 2026 | Discretionary sale | 2,329 | $222.38 | $518K | −19.8% | Feb 25, 2026 |
| Feb 23, 2026 | SIEVERT G MICHAEL (Director) 14K shares $220.07 −19.0% since trade filed Feb 25, 2026 | Discretionary sale | 14K | $220.07 | $3.1M | −19.0% | Feb 25, 2026 |
| Feb 19, 2026 | SIEVERT G MICHAEL (Director) 80K shares $214.94 −17.0% since trade filed Feb 23, 2026 | Discretionary sale | 80K | $214.94 | $17M | −17.0% | Feb 23, 2026 |
| Feb 18, 2026 | Osvaldik Peter (CFO) 27K shares $214.86 −17.0% since trade filed Feb 19, 2026 | Discretionary sale | 27K | $214.86 | $5.8M | −17.0% | Feb 19, 2026 |
| Feb 18, 2026 | Nelson Mark Wolfe (Officer) 6,274 shares $219.69 −18.8% since trade filed Feb 18, 2026 | Planned sale (10b5-1) | 6,274 | $219.69 | $1.4M | −18.8% | Feb 18, 2026 |
| Feb 17, 2026 | Nelson Mark Wolfe (Officer) 10K shares $220.80 −19.2% since trade filed Feb 18, 2026 | Planned sale (10b5-1) | 10K | $220.80 | $2.3M | −19.2% | Feb 18, 2026 |
| Feb 12, 2026 | CLAURE RAUL MARCELO (Director) 550K shares $217.57 −18.0% since trade filed Feb 17, 2026 | Discretionary sale | 550K | $217.57 | $120M | −18.0% | Feb 17, 2026 |
| Dec 5, 2025 | Long Letitia A (Director) 1,457 shares $210.32 −15.2% since trade filed Dec 9, 2025 | Discretionary sale | 1,457 | $210.32 | $306K | −15.2% | Dec 9, 2025 |
| Nov 18, 2025 | SIEVERT G MICHAEL (Director) 23K shares $214.25 −16.8% since trade filed Nov 19, 2025 | Planned sale (10b5-1) | 23K | $214.25 | $4.8M | −16.8% | Nov 19, 2025 |
| Nov 17, 2025 | SIEVERT G MICHAEL (Director) 23K shares $216.97 −17.8% since trade filed Nov 19, 2025 | Planned sale (10b5-1) | 23K | $216.97 | $4.9M | −17.8% | Nov 19, 2025 |
| Nov 17, 2025 | Katz Michael J. (Officer) 2,500 shares $215.91 −17.4% since trade filed Nov 19, 2025 | Planned sale (10b5-1) | 2,500 | $215.91 | $540K | −17.4% | Nov 19, 2025 |
| Nov 6, 2025 | Gopalan Srini (CEO) 9,800 shares $201.82 −11.6% since trade filed Nov 10, 2025 | Open-market buy | 9,800 | $201.82 | $2.0M | −11.6% | Nov 10, 2025 |
| Oct 29, 2025 | DEUTSCHE TELEKOM AG (Director) 40 shares $221.26 −19.4% since trade filed Oct 31, 2025 | Planned sale (10b5-1) | 40 | $221.26 | $9K | −19.4% | Oct 31, 2025 |
| Oct 29, 2025 | DEUTSCHE TELEKOM AG (Director) 1,334 shares $220.44 −19.1% since trade filed Oct 31, 2025 | Planned sale (10b5-1) | 1,334 | $220.44 | $294K | −19.1% | Oct 31, 2025 |
| Oct 28, 2025 | DEUTSCHE TELEKOM AG (Director) 808 shares $222.04 −19.7% since trade filed Oct 29, 2025 | Planned sale (10b5-1) | 808 | $222.04 | $179K | −19.7% | Oct 29, 2025 |
| Oct 28, 2025 | DEUTSCHE TELEKOM AG (Director) 15K shares $221.42 −19.5% since trade filed Oct 29, 2025 | Planned sale (10b5-1) | 15K | $221.42 | $3.3M | −19.5% | Oct 29, 2025 |
| Oct 28, 2025 | DEUTSCHE TELEKOM AG (Director) 38K shares $220.48 −19.1% since trade filed Oct 29, 2025 | Planned sale (10b5-1) | 38K | $220.48 | $8.3M | −19.1% | Oct 29, 2025 |
| Oct 27, 2025 | DEUTSCHE TELEKOM AG (Director) 14K shares $221.23 −19.4% since trade filed Oct 29, 2025 | Planned sale (10b5-1) | 14K | $221.23 | $3.1M | −19.4% | Oct 29, 2025 |
| Oct 27, 2025 | DEUTSCHE TELEKOM AG (Director) 50K shares $220.53 −19.1% since trade filed Oct 29, 2025 | Planned sale (10b5-1) | 50K | $220.53 | $11M | −19.1% | Oct 29, 2025 |
| Oct 24, 2025 | DEUTSCHE TELEKOM AG (Director) 856 shares $220.03 −19.0% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 856 | $220.03 | $188K | −19.0% | Oct 27, 2025 |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG (Director) 81 shares $224.02 −20.4% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 81 | $224.02 | $18K | −20.4% | Oct 27, 2025 |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG (Director) 683 shares $225.75 −21.0% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 683 | $225.75 | $154K | −21.0% | Oct 27, 2025 |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG (Director) 1,324 shares $223.37 −20.2% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 1,324 | $223.37 | $296K | −20.2% | Oct 27, 2025 |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG (Director) 6,662 shares $222.48 −19.8% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 6,662 | $222.48 | $1.5M | −19.8% | Oct 27, 2025 |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG (Director) 7,347 shares $221.61 −19.5% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 7,347 | $221.61 | $1.6M | −19.5% | Oct 27, 2025 |
| Oct 23, 2025 | DEUTSCHE TELEKOM AG (Director) 19K shares $220.14 −19.0% since trade filed Oct 27, 2025 | Planned sale (10b5-1) | 19K | $220.14 | $4.1M | −19.0% | Oct 27, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 179 shares $227.71 −21.7% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 179 | $227.71 | $41K | −21.7% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 868 shares $220.23 −19.0% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 868 | $220.23 | $191K | −19.0% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 1,266 shares $221.57 −19.5% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 1,266 | $221.57 | $281K | −19.5% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 3,508 shares $223.24 −20.1% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 3,508 | $223.24 | $783K | −20.1% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 3,643 shares $225.14 −20.8% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 3,643 | $225.14 | $820K | −20.8% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 4,230 shares $223.94 −20.4% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 4,230 | $223.94 | $947K | −20.4% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 13K shares $226.24 −21.2% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 13K | $226.24 | $3.0M | −21.2% | Oct 23, 2025 |
| Oct 22, 2025 | DEUTSCHE TELEKOM AG (Director) 38K shares $227.06 −21.5% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 38K | $227.06 | $8.5M | −21.5% | Oct 23, 2025 |
| Oct 21, 2025 | DEUTSCHE TELEKOM AG (Director) 3,829 shares $228.27 −21.9% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 3,829 | $228.27 | $874K | −21.9% | Oct 23, 2025 |
| Oct 21, 2025 | DEUTSCHE TELEKOM AG (Director) 12K shares $229.96 −22.5% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 12K | $229.96 | $2.9M | −22.5% | Oct 23, 2025 |
| Oct 21, 2025 | DEUTSCHE TELEKOM AG (Director) 48K shares $229.16 −22.2% since trade filed Oct 23, 2025 | Planned sale (10b5-1) | 48K | $229.16 | $11M | −22.2% | Oct 23, 2025 |
| Oct 20, 2025 | DEUTSCHE TELEKOM AG (Director) 7,025 shares $229.20 −22.2% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 7,025 | $229.20 | $1.6M | −22.2% | Oct 21, 2025 |
| Oct 20, 2025 | DEUTSCHE TELEKOM AG (Director) 14K shares $227.25 −21.5% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 14K | $227.25 | $3.2M | −21.5% | Oct 21, 2025 |
| Oct 20, 2025 | DEUTSCHE TELEKOM AG (Director) 15K shares $227.87 −21.7% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 15K | $227.87 | $3.4M | −21.7% | Oct 21, 2025 |
| Oct 20, 2025 | DEUTSCHE TELEKOM AG (Director) 29K shares $230.05 −22.5% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 29K | $230.05 | $6.6M | −22.5% | Oct 21, 2025 |
| Oct 17, 2025 | DEUTSCHE TELEKOM AG (Director) 467 shares $229.78 −22.4% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 467 | $229.78 | $107K | −22.4% | Oct 21, 2025 |
| Oct 17, 2025 | DEUTSCHE TELEKOM AG (Director) 10K shares $228.25 −21.9% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 10K | $228.25 | $2.4M | −21.9% | Oct 21, 2025 |
| Oct 17, 2025 | DEUTSCHE TELEKOM AG (Director) 18K shares $227.32 −21.6% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 18K | $227.32 | $4.2M | −21.6% | Oct 21, 2025 |
| Oct 17, 2025 | DEUTSCHE TELEKOM AG (Director) 35K shares $229.31 −22.2% since trade filed Oct 21, 2025 | Planned sale (10b5-1) | 35K | $229.31 | $8.1M | −22.2% | Oct 21, 2025 |
| Oct 16, 2025 | DEUTSCHE TELEKOM AG (Director) 1,955 shares $229.70 −22.4% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 1,955 | $229.70 | $449K | −22.4% | Oct 17, 2025 |
| Oct 16, 2025 | DEUTSCHE TELEKOM AG (Director) 11K shares $228.84 −22.1% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 11K | $228.84 | $2.5M | −22.1% | Oct 17, 2025 |
| Oct 16, 2025 | DEUTSCHE TELEKOM AG (Director) 12K shares $227.76 −21.7% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 12K | $227.76 | $2.7M | −21.7% | Oct 17, 2025 |
| Oct 16, 2025 | DEUTSCHE TELEKOM AG (Director) 16K shares $225.71 −21.0% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 16K | $225.71 | $3.7M | −21.0% | Oct 17, 2025 |
| Oct 16, 2025 | DEUTSCHE TELEKOM AG (Director) 23K shares $226.48 −21.3% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 23K | $226.48 | $5.3M | −21.3% | Oct 17, 2025 |
| Oct 15, 2025 | DEUTSCHE TELEKOM AG (Director) 610 shares $229.42 −22.3% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 610 | $229.42 | $140K | −22.3% | Oct 17, 2025 |
| Oct 15, 2025 | DEUTSCHE TELEKOM AG (Director) 19K shares $227.79 −21.7% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 19K | $227.79 | $4.4M | −21.7% | Oct 17, 2025 |
| Oct 15, 2025 | DEUTSCHE TELEKOM AG (Director) 22K shares $228.80 −22.1% since trade filed Oct 17, 2025 | Planned sale (10b5-1) | 22K | $228.80 | $4.9M | −22.1% | Oct 17, 2025 |
“Since trade” compares with the latest insider-implied price, not a market quote: these pages are built from filings alone. A role here is the one on that day's Form 4, so somebody promoted since appears under both titles.
Filing hygiene
262 Forms 4, 3 years
3 filed late
0 amendments
3.2 avg. days to file
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.