United States Aerospace & Defense

York Space Systems Inc (YSS)

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York Space Systems experienced significant selling activity recently, with BlackRock Portfolio Management LLC offloading over $18.4 million in shares across ten transactions. This divestment follows a 62.8% decline in stock value over the past quarter and a disappointing earnings report. No executive buying occurred during this period, reflecting a notable shift in institutional positioning.
Ticker: YSS Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for York Space Systems Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
0.8
Letarte Tyler Non-Executive Director
Transaction date
Purchase
Price
34.00
Quantity 1,470 +inf%
Value US$49,980
3.2
Erwin Tami A. Non-Executive Director
Transaction date
Purchase
Price
34.00
Quantity 2,941 +3.8%
Value US$99,994
3.2
Erwin Tami A. Non-Executive Director
Transaction date
Purchase
Price
34.00
Quantity 2,941 +3.8%
Value US$99,994
0.8
Letarte Tyler Non-Executive Director
Transaction date
Purchase
Price
34.00
Quantity 1,470 +inf%
Value US$49,980
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-08-10 2026-08-07 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
25,753 +43.6%
297.17
US$3,778,430 		25,753 +43.6% 297.17 US$3,778,430
2026-08-10 2026-08-06 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
28,687 -29.3%
32.00
US$3,682,640 		28,687 -29.3% 32.00 US$3,682,640
2026-08-06 2026-08-05 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
44,261 -14.9%
325.83
US$4,815,655 		44,261 -14.9% 325.83 US$4,815,655
2026-08-06 2026-08-05 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
116,162 -0.7%
13.49
US$1,567,025 		116,162 -0.7% 13.49 US$1,567,025
2026-08-06 2026-08-04 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
456,310 -2.6%
15.58
US$7,109,310 		456,310 -2.6% 15.58 US$7,109,310
2026-08-06 2026-08-04 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
77,743 -0.4%
15.02
US$1,167,700 		77,743 -0.4% 15.02 US$1,167,700
2026-08-04 2026-08-03 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
13,754 -0.1%
15.03
US$206,723 		13,754 -0.1% 15.03 US$206,723
2026-08-04 2026-07-31 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
35,574 -0.2%
15.14
US$538,590 		35,574 -0.2% 15.14 US$538,590
2026-07-31 2026-07-30 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
140,823 -0.8%
15.18
US$2,137,693 		140,823 -0.8% 15.18 US$2,137,693
2026-07-31 2026-07-29 S Sale
2.1
BlackRock Portfolio Management LLC
Large shareholder
63,390 -0.4%
15.31
US$970,501 		63,390 -0.4% 15.31 US$970,501
2026-02-03 2026-01-30 B Purchase
0.8
Letarte Tyler
Non-Executive Director
1,470 +inf%
34.00
US$49,980 		1,470 +inf% 34.00 US$49,980
2026-02-03 2026-01-30 B Purchase
3.2
Erwin Tami A.
Non-Executive Director
2,941 +3.8%
34.00
US$99,994 		2,941 +3.8% 34.00 US$99,994
2026-02-03 2026-01-30 B Purchase
3.2
Erwin Tami A.
Non-Executive Director
2,941 +3.8%
34.00
US$99,994 		2,941 +3.8% 34.00 US$99,994
2026-02-03 2026-01-30 B Purchase
0.8
Letarte Tyler
Non-Executive Director
1,470 +inf%
34.00
US$49,980 		1,470 +inf% 34.00 US$49,980
2026-02-03 2026-01-30 B Purchase
2.1
BlackRock Portfolio Management LLC
Large shareholder
752,500 +4.4%
34.00
US$25,585,000 		752,500 +4.4% 34.00 US$25,585,000
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