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DaveManuel.com · Institutional Ownership · Who Owns It

YORK SPACE SYSTEMS INC (YSS)

Institutional ownership reported to the SEC as of Q2 2026, across 3 quarters.

166
Reporting holders
$1.7B
Reported value
47.3%
Of shares outstanding
1.5%
Calls
2.4%
Puts
+22
Holder change

Institutions report 64,991,391 shares against 137,357,605 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
BlackRock, Inc.$473.0M19,212,6890.01%2q+1.1%+$4.9M
AE INDUSTRIAL PARTNERS, LP$288.7M11,728,05721.10%2q+3.8%+$10.6M
Allianz Asset Management GmbH$67.1M2,726,7830.05%2qHELD
Hood River Capital Management LLC$48.4M1,963,9420.35%2q+98.7%+$24.0M
Tema ETFs LLC$46.9M1,904,7181.52%2q+164099.8%+$46.9M
Tidal Investments LLC$45.4M1,843,2690.08%newNEW
WESTWOOD HOLDINGS GROUP INC$42.8M1,736,9060.32%2q+324.5%+$32.7M
VOYA INVESTMENT MANAGEMENT LLC$39.8M1,618,3180.03%2q+50.2%+$13.3M
UBS Group AG$37.2M1,512,7520.00%2q+43.5%+$11.3M
STATE STREET CORP$35.3M1,433,9380.00%2q+314.4%+$26.8M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$33.7M1,369,7270.04%2q+16296.1%+$33.5M
Clearbridge Investments, LLC$32.5M1,318,3910.03%2q-2.0%-$666.3K
SUSQUEHANNA INTERNATIONAL GROUP, LLP$31.5M
incl. $27.8M options CALL+PUT
152,1760.00%2q+1192.3%+$29.1M
Temasek Holdings (Private) Ltd$25.3M1,027,7740.07%2q+128.4%+$14.2M
SYSTEMATIC FINANCIAL MANAGEMENT LP$23.7M961,1900.47%2q+110.4%+$12.4M
VANGUARD CAPITAL MANAGEMENT LLC$20.8M844,0790.00%2q+0.5%+$113.6K
VANGUARD PORTFOLIO MANAGEMENT LLC$20.2M820,9630.00%2q+4.3%+$826.0K
FRONTIER CAPITAL MANAGEMENT CO LLC$18.0M733,0250.17%newNEW
Burkehill Global Management, LP$16.5M668,7050.59%2qHELD
Penserra Capital Management LLC$15.8M641,9610.12%newNEW
SEI INVESTMENTS CO$15.6M632,6240.01%2q+52.3%+$5.3M
ExodusPoint Capital Management, LP$14.1M570,7840.09%2q-3.8%-$550.0K
Allspring Global Investments Holdings, LLC$13.7M557,3060.02%2q-23.9%-$4.3M
Granahan Investment Management, LLC$11.5M468,1900.41%2q-51.6%-$12.3M
GEODE CAPITAL MANAGEMENT, LLC$11.3M459,6860.00%2q+7.4%+$778.4K
SCHRODER INVESTMENT MANAGEMENT GROUP$11.2M465,1450.01%2q-4.2%-$489.7K
GROUP ONE TRADING LLC$10.9M
incl. $10.7M options CALL+PUT
7,4170.02%2q+186.7%+$7.1M
CITADEL ADVISORS LLC$9.6M
incl. $8.9M options CALL+PUT
27,2830.00%2q-97.1%-$323.6M
MORGAN STANLEY$9.5M386,5420.00%2q+36.3%+$2.5M
AMERICAN CENTURY COMPANIES INC$9.2M373,8670.00%2q+2.6%+$229.4K
BANK OF AMERICA CORP /DE/$9.1M370,4250.00%2q+234.2%+$6.4M
Stephens Investment Management Group LLC$8.6M348,7620.09%2q-39.0%-$5.5M
NISSAY ASSET MANAGEMENT CORP /JAPAN$8.5M345,1270.04%newNEW
Artisan Partners Limited Partnership$7.7M311,4270.01%2q-55.9%-$9.7M
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$7.4M300,0000.01%2q-25.0%-$2.5M
JANE STREET GROUP, LLC$7.1M CALL+PUToptions only0.00%2qOPTIONS
ArrowMark Colorado Holdings LLC$6.6M268,9370.28%2q-58.5%-$9.3M
TORONTO DOMINION BANK$6.5M263,0000.01%newNEW
SEGALL BRYANT & HAMILL, LLC$5.8M235,6310.07%newNEW
GOLDMAN SACHS GROUP INC$5.3M
incl. $1.5M options PUT
156,6400.00%2q+192.0%+$3.5M
Ghisallo Capital Management LLC$4.9M200,0000.10%2q-51.0%-$5.1M
Resolute Capital Asset Partners LLC$4.5M184,2061.94%2q-9.8%-$492.4K
WELLINGTON MANAGEMENT GROUP LLP$4.2M171,8530.00%2q-87.0%-$28.4M
Vident Advisory, LLC$4.2M170,4590.03%newNEW
Sculptor Capital LP$4.1M CALL+PUToptions only0.03%newOPTIONS
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$4.0M160,5470.00%2q+2.7%+$104.8K
LORD, ABBETT & CO. LLC$3.8M155,0960.01%2q-81.0%-$16.3M
NORTHERN TRUST CORP$3.8M152,4390.00%2q+11.6%+$389.4K
Blackstone Inc.$3.7M150,0000.01%2qHELD
VANGUARD FIDUCIARY TRUST CO$3.4M137,0480.00%2q+6.9%+$217.2K
FEDERATED HERMES, INC.$3.3M133,2000.00%2q-53.8%-$3.8M
TCW GROUP INC$3.2M128,2500.02%newNEW
Orion Porfolio Solutions, LLC$3.1M126,1270.02%2q+54.6%+$1.1M
Swedbank AB$3.0M121,8930.00%2q-21.1%-$804.5K
Stenham Asset Management Ltd$2.7M110,6511.95%2qHELD
Nuveen, LLC$2.6M105,3650.00%2q+409.8%+$2.1M
NEW YORK STATE COMMON RETIREMENT FUND$2.5M101,5170.00%2q-43.2%-$1.9M
NORGES BANK$2.5M100,0000.00%newNEW
FIFTH THIRD BANCORP$2.4M97,4140.00%2q+20152.4%+$2.4M
FMR LLC$2.2M89,9880.00%2q-5.9%-$137.7K
PEAK6 LLC$2.1M CALLoptions only0.00%newOPTIONS
IMC-Chicago, LLC$1.9M CALL+PUToptions only0.00%2qOPTIONS
RAYMOND JAMES FINANCIAL INC$1.7M71,0510.00%2q+7.3%+$118.8K
WELLS FARGO & COMPANY/MN$1.6M66,0010.00%2q-27.4%-$612.9K
EXCHANGE TRADED CONCEPTS, LLC$1.6M64,9110.01%2q+262.6%+$1.2M
Diametric Capital, LP$1.5M62,5160.16%2q-15.4%-$279.1K
Bank of New York Mellon Corp$1.4M56,8730.00%2q-96.6%-$40.0M
Walleye Capital LLC$1.3M54,0070.00%2qHELD
SEVEN GRAND MANAGERS, LLC$1.2M50,0000.05%2q-66.7%-$2.5M
Daiwa Securities Group Inc.$1.2M
incl. $68.9K options CALL+PUT
46,5950.00%2q-92.5%-$15.0M
Mitsubishi UFJ Asset Management Co., Ltd.$1.2M47,2000.00%newNEW
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO$1.1M45,7300.00%2q+280.4%+$829.9K
SIMPLEX TRADING, LLC$1.1M
incl. $1.1M options CALL+PUT
5450.00%2qHELD
MILLENNIUM MANAGEMENT LLC$1.0M41,3070.00%newNEW
Canal Insurance CO$985.0K40,0000.22%newNEW
ROYAL BANK OF CANADA$925.0K37,5650.00%2q-1.9%-$18.0K
AMERIPRISE FINANCIAL INC$909.8K36,9550.00%2q-94.1%-$14.4M
FIRST TRUST ADVISORS LP$899.6K36,5400.00%newNEW
MOODY NATIONAL BANK TRUST DIVISION$882.7K35,8510.07%newNEW
JPMORGAN CHASE & CO$857.2K34,6950.00%2q+17.5%+$127.8K
ALLIANCEBERNSTEIN L.P.$816.7K36,8400.00%newNEW
MARSHALL WACE, LLP$800.5K32,5130.00%newNEW
Cetera Investment Advisers$776.1K31,5220.00%newNEW
BNP PARIBAS FINANCIAL MARKETS$736.9K29,9320.00%2q+687.7%+$643.4K
LPL Financial LLC$696.3K28,2800.00%2q+121.9%+$382.5K
AQR CAPITAL MANAGEMENT LLC$685.4K27,8400.00%newNEW
ROYCE & ASSOCIATES LP$677.3K27,5100.01%newNEW
FRED ALGER MANAGEMENT, LLC$662.3K26,9020.00%2q-60.9%-$1.0M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/$646.7K26,2670.00%2q-94.9%-$12.1M
Longaeva Partners L.P.$623.6K25,3310.01%2q-87.9%-$4.5M
CITIGROUP INC$617.2K25,0710.00%2q+1627.8%+$581.5K
Squarepoint Ops LLC$577.6K23,4610.00%2q+87.2%+$269.0K
TUDOR INVESTMENT CORP ET AL$566.4K23,0060.00%2q+61.2%+$214.9K
RHUMBLINE ADVISERS$546.4K22,1950.00%2q+43.7%+$166.1K
Hilltop Holdings Inc.$474.5K19,2730.04%newNEW
DEUTSCHE BANK AG\$468.2K19,0190.00%2q+66.6%+$187.2K
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY$449.0K18,2530.00%2q-18.1%-$99.4K
GAMCO INVESTORS, INC. ET AL$425.2K17,2710.00%2q-3.2%-$14.2K
Cambridge Investment Research Advisors, Inc.$414.0K16,8360.00%newNEW
Brevan Howard Capital Management LP$399.8K16,2390.00%2q-85.1%-$2.3M

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-10-2713GBlackRock, Inc.5.4%

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

FiledEvent dateWhatSource
2026-08-052026-07-30Directors or officers departed or appointedfiling

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Ten percent owners and entities

Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.

DateInsiderRoleSideSharesValue
2026-08-04BlackRock Portfolio Management LLC10% ownerSold546,558$8.5M ×2
2026-08-04BlackRock Portfolio Management LLC10% ownerSold534,053$8.3M ×2
2026-08-06BlackRock Portfolio Management LLC10% ownerSold201,504$2.3M
2026-08-07BlackRock Portfolio Management LLC10% ownerSold200,170$2.2M
2026-07-30BlackRock Portfolio Management LLC10% ownerSold140,823$2.1M
2026-08-05BlackRock Portfolio Management LLC10% ownerSold128,046$1.7M ×2

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q3 202631$14.9M1,719,22915930.0%
Q2 2026166$1.7B64,991,3916152423.9%
Q1 2026144$1.4B62,056,950144001.3%