iShares Government Money Market ETF
GMMF
9 hedge funds and large institutions have $33.9M invested in iShares Government Money Market ETF in 2025 Q4 according to their latest regulatory filings, with 1 funds opening new positions, 2 increasing their positions, 4 reducing their positions, and 0 closing their positions.
13% more funds holding
Funds holding: 8 → 9 (+1)
1% more capital invested
Capital invested by funds: $33.4M → $33.9M (+$483K)
11.72% less ownership
Funds ownership: 48.83% → 37.12% (-12%)
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
50% less repeat investments, than reductions
Existing positions increased: 2 | Existing positions reduced: 4
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$856K |
| 2 |
TRCT
Tower Research Capital (TRC)
New York
|
+$487K |
| 3 |
NWM
Northcape Wealth Management
Williamsville,
New York
|
+$472K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$899K |
| 2 |
TSMHT
Thurston Springer Miller Herd & Titak
Indianapolis,
Indiana
|
-$213K |
| 3 |
HFAS
Hummer Financial Advisory Services
Chicago,
Illinois
|
-$70.2K |
| 4 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$60.2K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
1
BlackRock
New York
| $25.1M | – | – | – |
|
|
HFAS
2
Hummer Financial Advisory Services
Chicago,
Illinois
| $2.7M | -$70.2K | -700 | -3% |
|
|
TRCT
3
Tower Research Capital (TRC)
New York
| $2.58M | +$487K | +4,857 | +23% |
|
|
4
Citadel Advisors
Miami,
Florida
| $1.13M | -$899K | -8,958 | -44% |
|
|
5
Jane Street
New York
| $1.12M | +$856K | +8,533 | +322% |
|
|
TSMHT
6
Thurston Springer Miller Herd & Titak
Indianapolis,
Indiana
| $499K | -$213K | -2,125 | -30% |
|
|
NWM
7
Northcape Wealth Management
Williamsville,
New York
| $471K | +$472K | +4,700 | New |
|
|
SC
8
Searle & Co
Greenwich,
Connecticut
| $301K | – | – | – |
|
|
9
Royal Bank of Canada
Toronto,
Ontario, Canada
| $1K | -$60.2K | -600 | -98% |
|
10
Wells Fargo
San Francisco,
California
| $29 | – | – | – |
|
GMMF Hedge Fund Activity: Q4 2025 in Review
9 of the 8,228 institutional investors tracked by Wall St. Rank reported a position in iShares Government Money Market ETF (GMMF) for Q4 2025, worth a combined $33.9M — up 1.4% from $33.4M a quarter earlier.
Buyers outnumbered sellers: 1 fund opened new GMMF positions and 0 closed out — a net gain of 1 holder — while 2 added to existing stakes and 4 trimmed.
The largest buyer was Jane Street, adding an estimated $856K. The largest seller was Citadel Advisors, cutting an estimated $899K.
- 9 institutional investors held iShares Government Money Market ETF (GMMF) as of Q4 2025, up from 8 in Q3 2025.
- Funds reported $33.9M of iShares Government Money Market ETF stock for Q4 2025, up 1.4% quarter-over-quarter.
- 1 fund opened new iShares Government Money Market ETF positions in Q4 2025 and 0 closed out, a net change of +1 holder.
- The largest iShares Government Money Market ETF buyer in Q4 2025 was Jane Street, an estimated $856K added.
- The largest iShares Government Money Market ETF seller in Q4 2025 was Citadel Advisors, an estimated $899K sold.
Based on aggregated 13F filings for Q4 2025.