Who Owns iShares Government Money Market ETF (GMMF)?Hedge Fund & Institutional Holders
Institutional Holders
15
as of Q4 2025
Total Institutional Value
$2.69600020000001e+64T
% of Float Held
—
QoQ Change in Holders
+3 / -0
Price History
GMMF — Biggest New Institutional Buyers This Quarter
| Fund | Action | Shares Added | Value Added |
|---|---|---|---|
| THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | New Position | +5K | +$495.0M |
| NORTHCAPE WEALTH MANAGEMENT, LLC | New Position | +5K | +$471.0M |
| SEARLE & CO. | New Position | +3K | +$300.0M |
| Tower Research Capital LLC (TRC) | Increased | +5K | +$-97.9M |
| JANE STREET GROUP, LLC | Increased | +9K | +$-265.5M |
GMMF — Institutions Reducing or Closing Positions
| Fund | Action | Shares Sold | Value Sold |
|---|---|---|---|
| CITADEL ADVISORS LLC | Decreased | -9K | -$1.0B |
| Hummer Financial Advisory Services Inc | Decreased | -700 | -$77.7M |
| ROYAL BANK OF CANADA | Decreased | -600 | -$61.0M |
Top Institutional Holders(Q4 2025)
| # | Fund | Shares | Value | % of Portfolio | Type |
|---|---|---|---|---|---|
| 1 | Hummer Financial Advisory Services Inc | 26,900 | $2.7B | 1.90% | Share |
| 2 | Tower Research Capital LLC (TRC) | 25,733 | $2.0B | 0.05% | Share |
| 3 | CITADEL ADVISORS LLC | 11,259 | $1.0B | 0.15% | Share |
| 4 | NORTHCAPE WEALTH MANAGEMENT, LLC | 4,700 | $471.0M | 0.13% | Share |
| 5 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 3,589 | $359.0M | 0.13% | Share |
| 6 | SEARLE & CO. | 3,000 | $300.0M | 0.08% | Share |
| 7 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 598 | $59.0M | 0.02% | Share |
| 8 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 299 | $29.0M | 0.01% | Share |
| 9 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 259 | $25.0M | 0.01% | Share |
| 10 | BlackRock, Inc. | 250,000 | $25.0M | 0.42% | Share |
| 11 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 150 | $15.0M | 0.01% | Share |
| 12 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | 82 | $8.0M | 0.00% | Share |
| 13 | JANE STREET GROUP, LLC | 11,185 | $1.0M | 0.00% | Share |
| 14 | WELLS FARGO & COMPANY/MN | 0 | $0 | 0.00% | Share |
| 15 | ROYAL BANK OF CANADA | 11 | $0 | 0.00% | Share |
GMMF Institutional Ownership History
| Quarter | Holders | Total Value | Change |
|---|---|---|---|
| Q4 2025 | 10 | $7.0B | +3 |
| Q3 2025 | 7 | $7.3B | -1 |
| Q2 2025 | 8 | $3.0B | +2 |
| Q1 2025 | 6 | $28.5B | — |
Similar Stocks by Institutional Ownership
As of Q4 2025, 15 institutional investors hold GMMF (iShares Government Money Market ETF). The largest holder is Hummer Financial Advisory Services Inc with $2.7B in shares. This quarter, 3 institutions opened new positions and 0 closed their positions.
Frequently Asked Questions
How many hedge funds own GMMF?
As of Q4 2025, 15 institutional investors report holding GMMF (iShares Government Money Market ETF) in their 13F filings.
Who is the largest institutional holder of GMMF?
The largest institutional holder of GMMF is Hummer Financial Advisory Services Inc with $2.7B in shares.
Is institutional ownership of GMMF increasing or decreasing?
This quarter, 3 institutions opened new positions in GMMF and 0 closed their positions.