MarketPeel
Insider Trading Intelligence
TL

Timothy James Last

IRDM
EVP, SALES & MARKETING · IRIDIUM COMMUNICATIONS INC. · CIK 0002046045
FILING MIX · LIFETIME21%/79%
BUYS
4
SELLS
15
TOTAL VALUE
$1.38M
COMPANIES
1
ACTIVE SINCE
Jan 2025
HOLDINGS NOW
93,413
AVG SELL PX
$40.39
TRADE KIND
SHOWING 19 / 19
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 1 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Timothy James Last, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d1+100.00%-1.76%+0.83%-2.59%-2.59%
14d1+100.00%-6.83%+1.20%-8.03%-8.03%
30d1+100.00%-2.77%+2.94%-5.71%-5.71%
60d1+0.00%+4.63%-0.15%+4.78%+4.78%
90d1+100.00%-8.59%-3.15%-5.44%-5.44%
180d1+0.00%+3.45%+5.96%-2.51%-2.51%
1y1+100.00%-39.94%+17.20%-57.14%-57.14%
2y1(1 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
IRDM · 93,413 shares · as of Aug 17, 2026
030,16360,32590,488120,6502026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2025
2025
2025
2025
2026
2026
2026
FLOW · 4 buys / 15 sellsCOVERAGE · 7 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
500$50.88$25.4K93,413Aug 17, 2026Aug 19, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
19,021$50.33$957.3K93,913Aug 17, 2026Aug 19, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
1,498$51.78$77.6K112,934Jun 1, 2026Jun 2, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
2,335$24.01$56.1K114,432Mar 9, 2026Mar 11, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
PURCHASEGRANT
Stock grant
66,805120,650Mar 1, 2026Mar 2, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
3,883$22.49$87.3K116,767Mar 1, 2026Mar 2, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
PURCHASEGRANT
Stock grant
4,63453,845Feb 26, 2026Mar 2, 2026View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
974$17.04$16.6K49,211Dec 19, 2025Dec 23, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
844$16.44$13.9K50,185Dec 1, 2025Dec 3, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
70$17.64$1.2K51,029Oct 1, 2025Oct 2, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
846$24.89$21.1K51,099Sep 1, 2025Sep 2, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
70$30.59$2.1K51,945Jul 1, 2025Jul 3, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
1,483$25.40$37.7K52,015Jun 1, 2025Jun 2, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
70$27.32$1.9K53,498Apr 1, 2025Apr 2, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
PURCHASEGRANT
Stock grant
2,19654,585Mar 2, 2025Mar 4, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
1,017$31.56$32.1K53,568Mar 2, 2025Mar 4, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
PURCHASEGRANT
Stock grant
23,76452,389Mar 1, 2025Mar 4, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE
EVP, Sales & Marketing
1,409$31.56$44.5K28,625Mar 1, 2025Mar 4, 2025View →
IRDM
IRIDIUM COMMUNICATIONS INC.
SALE10b5-1
10b5-1 plan
57$29.23$1.7K30,034Jan 2, 2025Jan 3, 2025View →
Other insiders · IRDM
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About this filer
CIK 0002046045
ROLE
EVP, Sales & Marketing
PRIMARY
IRDM
COMPANIES
1
ACTIVE SINCE
Jan 2025
MARKETPEEL · /INSIDER/0002046045DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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