YSS

YORK SPACE SYSTEMS INC
USCUSIP 987084100
Institutional Owners
42
13F Value Held
$202.7M
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
1
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)42 adding · 0 trimming
Insider net (180d)+$0
Price history not yet available for YSS.

Top institutional holders

42 13F filers
#FundPosition valueSharesLast moveAs of
1Hood River Capital Management LLC
$21.9M
988.5KNewQ1 2026
2Granahan Investment Management, LLC
$21.5M
967.6KNewQ1 2026
3CITADEL ADVISORS LLC
$20.2M
911.6KNewQ1 2026
4Allspring Global Investments Holdings, LLC
$16.9M
717.0KNewQ1 2026
5ArrowMark Colorado Holdings LLC
$14.4M
648.5KNewQ1 2026
6Daiwa Securities Group Inc.
$13.8M
622.8KNewQ1 2026
7Stephens Investment Management Group LLC
$12.7M
571.8KNewQ1 2026
8Temasek Holdings (Private) Ltd
$10.0M
450.0KNewQ1 2026
9SYSTEMATIC FINANCIAL MANAGEMENT LP
$9.9M
446.3KNewQ1 2026
10WESTWOOD HOLDINGS GROUP INC
$9.1M
409.2KNewQ1 2026
11Ghisallo Capital Management LLC
$9.0M
407.8KNewQ1 2026
12STATE STREET CORP
$7.7M
346.0KNewQ1 2026
13Alyeska Investment Group, L.P.
$6.4M
288.6KNewQ1 2026
14CenterBook Partners LP
$6.4M
288.5KNewQ1 2026
15Weiss Asset Management LP
$4.5M
202.2KNewQ1 2026
16Zimmer Partners, LP
$2.5M
115.0KNewQ1 2026
17LMR Partners LLP
$2.5M
110.7KNewQ1 2026
18Hudson Bay Capital Management LP
$2.2M
100.0KNewQ1 2026
19Schonfeld Strategic Advisors LLC
$2.2M
100.0KNewQ1 2026
20Empyrean Capital Partners, LP
$2.1M
95.0KNewQ1 2026
21Orion Porfolio Solutions, LLC
$1.8M
81.6KNewQ1 2026
22Walleye Capital LLC
$1.2M
54.0KNewQ1 2026
23SCOPUS ASSET MANAGEMENT, L.P.
$730K
32.9KNewQ1 2026
24Woodline Partners LP
$665K
30.0KNewQ1 2026
25DAVIDSON KEMPNER CAPITAL MANAGEMENT LP
$474K
21.4KNewQ1 2026

Fund activity — latest quarter

Opened (NEW)
42
funds
Added
0
funds
Reduced
0
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$0
0 insiders
Net
$0
0 P/S txns
Signal
Mixed
open-market
DateInsiderRoleActionSharesValue
Jun 4, 2026AEROEQUITY GP, LLC10% Owneracquired (A)287.8K$9.8M

Funds that own YSS also own

CompanyCo-held byCombined value
Microsoft CorporationMSFT37 funds$124.6B
Nvidia Corp - USNVDA36 funds$192.1B
Amazon.Com Inc - USAMZN35 funds$92.4B
Meta Platforms Inc-ClasMETA33 funds$56.5B
Tesla Inc - USTSLA33 funds$46.8B
Micron Technology Inc - USMU33 funds$22.2B
Alphabet, Inc.GOOGL32 funds$73.1B
Broadcom LtdAVGO32 funds$66.2B
Advanced Micro Devices Inc - USAMD32 funds$17.0B
Unitedhealth Group Inc - USUNH32 funds$14.2B
Boston Scientific Corp - USBSX32 funds$5.1B
Lumentum Holdings Inc.LITE32 funds$2.7B

Ranked by how many of YSS's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

1 shown

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for YSS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.