Spire Global
SPIR
104 hedge funds and large institutions have $133M invested in Spire Global in 2025 Q3 according to their latest regulatory filings, with 18 funds opening new positions, 33 increasing their positions, 23 reducing their positions, and 17 closing their positions.
43% more repeat investments, than reductions
Existing positions increased: 33 | Existing positions reduced: 23
6% more first-time investments, than exits
New positions opened: 18 | Existing positions closed: 17
1% more funds holding
Funds holding: 103 → 104 (+1)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
3.41% less ownership
Funds ownership: 42.22% → 38.81% (-3.4%)
15% less capital invested
Capital invested by funds: $156M → $133M (-$23.6M)
22% less call options, than puts
Call options by funds: $8.42M | Put options by funds: $10.8M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Two Sigma Investments
New York
|
+$1.02M |
| 2 |
Jane Street
New York
|
+$955K |
| 3 |
Stifel Financial
St. Louis,
Missouri
|
+$798K |
| 4 |
BNP Paribas Financial Markets
Paris,
France
|
+$757K |
| 5 |
SC
Shay Capital
New York
|
+$746K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HCA
Harbor Capital Advisors
Chicago,
Illinois
|
-$3.77M |
| 2 |
GIM
Granahan Investment Management
Waltham,
Massachusetts
|
-$3.36M |
| 3 |
Marshall Wace
London,
United Kingdom
|
-$3.21M |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$2.91M |
| 5 |
Walleye Capital
New York
|
-$1.76M |
SPIR Hedge Fund Activity: Q3 2025 in Review
104 of the 7,641 institutional investors tracked by Wall St. Rank reported a position in Spire Global (SPIR) for Q3 2025, worth a combined $133M — down 15% from $156M a quarter earlier.
Buyers outnumbered sellers: 18 funds opened new SPIR positions and 17 closed out — a net gain of 1 holder — while 33 added to existing stakes and 23 trimmed.
The largest buyer was Two Sigma Investments, adding an estimated $1.02M. The largest seller was Harbor Capital Advisors, exiting entirely with an estimated $3.77M sold.
- 104 institutional investors held Spire Global (SPIR) as of Q3 2025, up from 103 in Q2 2025.
- Funds reported $133M of Spire Global stock for Q3 2025, down 15% quarter-over-quarter.
- 18 funds opened new Spire Global positions in Q3 2025 and 17 closed out, a net change of +1 holder.
- The largest Spire Global buyer in Q3 2025 was Two Sigma Investments, an estimated $1.02M added.
- The largest Spire Global seller in Q3 2025 was Harbor Capital Advisors, an estimated $3.77M sold.
Based on aggregated 13F filings for Q3 2025.