Security key
987084100
York Space Systems Inc. - Common Stock, par value $0.0001 per share (YSS)
CUSIP: 987084100
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 62,056,950
- Total 13F value
- $1,376,269,884
- Share change
- +60,289,248
- Put/Call ratio
- 150%
- SEC-reported price per share
- $22.17
- Number of holders
- 140
- Value change
- +$1,337,079,931
- Number of buys
- 135
- Shares outstanding
- 129,867,360
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
140
Top holders
10
YSS full security history
Ownership snapshot
Full 13F holder table
York Space Systems Inc. SEC filings
York Space Systems Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of YSS - York Space Systems Inc. - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
AEROEQUITY GP, LLC
Disclosed value leader
AEROEQUITY GP, LLC
Comparable rows
2/12
Latest evidence
31 Mar 2026
13D/G
3/4/5
Lead comparable stake: 23%
10 rows are not safely comparable across share classes.
13D/G row: AEROEQUITY GP, LLC
Showing 1-6 of 12 holder rows.
Quick read
AEROEQUITY GP, LLC leads the comparable SEC ownership view at 23%.
2 of 12 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens AEROEQUITY GP, LLC's linked filing trail.
Comparable ownership
Top 2
AEROEQUITY GP, LLC
23%
Dirk Wallinger
8.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 12 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| AEROEQUITY GP, LLC |
13D/G
|
23%
|
$1,006,133,652
30,196,088 shares
|
$0 | 31 Mar 2026 |
| Dirk Wallinger |
13D/G
3/4/5
Chief Executive Officer, Director
|
8.6%
|
$372,137,519
11,168,593 shares
|
$0 | 31 Mar 2026 |
| Kevin Messerle |
3/4/5
Chief Financial Officer
|
—
class O/S missing
|
—
998,319 shares
|
— | 30 Jan 2026 |
| Monica J. Palko |
3/4/5
Chief Legal and Administrative Officer
|
—
class O/S missing
|
—
735,005 shares
|
— | 30 Jan 2026 |
| Devjyoti Rudra |
3/4/5
Chief Supply Chain Officer
|
—
class O/S missing
|
—
358,357 shares
|
— | 30 Jan 2026 |
| Tami A. Erwin |
3/4/5
Director
|
—
class O/S missing
|
—
79,984 shares
|
— | 30 Jan 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
140
Shares
62,056,950
Rows available
140
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
140
Q1 2026 holders
140
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|