Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

York Space Systems Inc.

YSS · NYSE · CIK 0002086587 · Industrials · Aerospace & Defense

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

17 Form 4 transaction lines observed in the same window
14 sales · 3 option, withholding, award, gift or other lines

Last qualifying purchase2026-01-30 · Erwin Tami A. · $100.0K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
BlackRock Portfolio Management LLCTenPercentOwner
▼▼▼▼▼▼▼▼▼▼
AEROEQUITY GP, LLC; GREENE MICHAEL ROBERT; ROWE DAVID H.TenPercentOwner
○○○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-01-30 · Erwin Tami A..

Recent Form 4 activity

3Purchases
14Sales
16Other Form 4 lines
22SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING14 sale line(s) · context only
OTHER3 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
11,965,808
Previous report
7,384,125
Avg daily volume
4,582,019
Days to cover
2.6

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-01-30Letarte TylerPurchase (P)Common Stock1,470USD 34.00USD 49,980SEC filing ↗
2026-01-30Erwin Tami A.Purchase (P)Common Stock2,941USD 34.00USD 99,994SEC filing ↗
2026-01-30BlackRock Portfolio Management LLCPurchase (P)Common Stock752,500USD 34.00USD 25,585,000SEC filing ↗

Form 4 evidence

33 transaction lines in the latest 365-day window; 33 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-07BlackRock Portfolio Management LLCSale (S)Common Stock200,170USD 10.99USD 2,199,868SEC filing ↗
2026-08-06BlackRock Portfolio Management LLCSale (S)Common Stock201,504USD 11.60USD 2,337,446SEC filing ↗
2026-08-05BlackRock Portfolio Management LLCSale (S)Common Stock128,046USD 13.66USD 1,748,613SEC filing ↗
Show recent Form 4 evidence (29 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-07BlackRock Portfolio Management LLCSale (S)Common Stock200,170USD 10.99USD 2,199,868SEC filing ↗
2026-08-06BlackRock Portfolio Management LLCSale (S)Common Stock201,504USD 11.60USD 2,337,446SEC filing ↗
2026-08-05BlackRock Portfolio Management LLCSale (S)Common Stock128,046USD 13.66USD 1,748,613SEC filing ↗
2026-08-05BlackRock Portfolio Management LLCSale (S)Common Stock127,946USD 13.65USD 1,747,085SEC filing ↗
2026-08-04BlackRock Portfolio Management LLCSale (S)Common Stock546,558USD 15.50USD 8,471,648SEC filing ↗
2026-08-04BlackRock Portfolio Management LLCSale (S)Common Stock534,053USD 15.50USD 8,277,010SEC filing ↗
2026-08-03BlackRock Portfolio Management LLCSale (S)Common Stock13,754USD 15.03USD 206,723SEC filing ↗
2026-07-31BlackRock Portfolio Management LLCSale (S)Common Stock35,574USD 15.14USD 538,590SEC filing ↗
2026-07-30BlackRock Portfolio Management LLCSale (S)Common Stock140,823USD 15.18USD 2,137,693SEC filing ↗
2026-07-29BlackRock Portfolio Management LLCSale (S)Common Stock63,390USD 15.31USD 970,501SEC filing ↗
2026-07-08AEROEQUITY GP, LLC; GREENE MICHAEL ROBERT; ROWE DAVID H.Award / grant (A)Common Stock, par value $0.0001 per share2,289,366USD 34.00USD 77,838,444SEC filing ↗
2026-06-04AEROEQUITY GP, LLC; GREENE MICHAEL ROBERT; ROWE DAVID H.Award / grant (A)Common Stock, par value $0.0001 per share430,134USD 34.00USD 14,624,556SEC filing ↗
2026-06-04AEROEQUITY GP, LLC; GREENE MICHAEL ROBERT; ROWE DAVID H.Award / grant (A)Common Stock, par value $0.0001 per share287,789USD 34.00USD 9,784,826SEC filing ↗
2026-04-10Davidson JanineAward / grant (A)Common Stock4,381USD 0.00USD 0SEC filing ↗
2026-01-30Wallinger DirkAward / grant (A)Common Stock211,176USD 0.00USD 0SEC filing ↗
2026-01-30Wallinger DirkAward / grant (A)Common Stock569,920USD 0.00USD 0SEC filing ↗
2026-01-30Rudra DevjyotiAward / grant (A)Common Stock23,529USD 0.00USD 0SEC filing ↗
2026-01-30Palko Monica J.Award / grant (A)Common Stock54,412USD 0.00USD 0SEC filing ↗
2026-01-30Messerle KevinAward / grant (A)Common Stock80,882USD 0.00USD 0SEC filing ↗
2026-01-30McConville JamesAward / grant (A)Common Stock5,294USD 0.00USD 0SEC filing ↗
2026-01-30Letarte TylerPurchase (P)Common Stock1,470USD 34.00USD 49,980SEC filing ↗
2026-01-30Letarte TylerAward / grant (A)Common Stock5,294USD 0.00USD 0SEC filing ↗
2026-01-30Konert Kirk MichaelAward / grant (A)Common Stock5,294USD 0.00USD 0SEC filing ↗
2026-01-30Frantz Brian DAward / grant (A)Common Stock10,294USD 0.00USD 0SEC filing ↗
2026-01-30Erwin Tami A.Purchase (P)Common Stock2,941USD 34.00USD 99,994SEC filing ↗
2026-01-30Erwin Tami A.Award / grant (A)Common Stock5,294USD 0.00USD 0SEC filing ↗
2026-01-30Brothers Louis R JrAward / grant (A)Common Stock5,294USD 0.00USD 0SEC filing ↗
2026-01-30Boyd AndrewAward / grant (A)Common Stock5,294USD 0.00USD 0SEC filing ↗
2026-01-30BlackRock Portfolio Management LLCPurchase (P)Common Stock752,500USD 34.00USD 25,585,000SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerYSS
CIK0002086587
SectorIndustrials
IndustryAerospace & Defense Yahoo Finance
SEC SIC3760 Guided Missiles & Space Vehicles & Parts
ExchangeNYSE

Data coverage

Local Form 4 history33 transaction lines from 2026-01-30 to 2026-08-07
3 P purchase lines · 14 S sale lines · 16 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.