As of the latest SEC filings, MERRIMACK PHARMACEUTICALS INC (MACK) is held by 18 institutional funds. The largest fund shareholder is Small Cap Index Trust (JAEWX), holding an estimated $72.33 in market value, representing a significant portion of its portfolio.
Funds holding MERRIMACK PHARMACEUTICALS INC (MACK)
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- MACK
- CIK:
| Fund | Type | Manager | Weight | Market Value | Shares |
Report Date
|
Filing Date
|
|---|---|---|---|---|---|---|---|
|
JAEWX
Small Cap Index Trust
|
MF | John Hancock | 0.00% | $72.33 | 2,411 | Mar 31, 2026 | May 29, 2026 |
|
USMIX
Victory Extended Market Index Fund
|
MF | Independent / Boutique | 0.00% | $54.81 | 1,827 | Apr 30, 2026 | Jun 25, 2026 |
|
JAFVX
Strategic Equity Allocation Trust
|
MF | John Hancock | 0.00% | $45.45 | 1,515 | Mar 31, 2026 | May 29, 2026 |
|
JAFEX
Total Stock Market Index Trust
|
MF | John Hancock | 0.00% | $6.12 | 204 | Mar 31, 2026 | May 29, 2026 |
|
FSMAX
Fidelity Extended Market Index Fund
|
MF | Fidelity | 0.00% | $0.83 | 82,829 | Feb 28, 2026 | Apr 24, 2026 |
|
FSKAX
Fidelity Total Market Index Fund
|
MF | Fidelity | 0.00% | $0.29 | 28,782 | Feb 28, 2026 | Apr 24, 2026 |
|
FCFMX
Fidelity Series Total Market Index Fund
|
MF | Fidelity | 0.00% | $0.19 | 19,085 | Feb 28, 2026 | Apr 24, 2026 |
|
-
LVIP SSGA Small-Cap Index Fund
|
ETF | Independent / Boutique | 0.00% | $0.00 | 1,500 | Mar 31, 2026 | May 18, 2026 |
|
-
Penn Series Small Cap Index Fund
|
ETF | Independent / Boutique | 0.00% | $0.00 | 400 | Mar 31, 2026 | May 21, 2026 |
|
DFSCX
U.S. MICRO CAP PORTFOLIO
|
MF | Dimensional Fund Advisors | 0.00% | $0.00 | 145,158 | Apr 30, 2026 | Jun 24, 2026 |
|
DFSIX
U.S. Sustainability Core 1 Portfolio
|
MF | Dimensional Fund Advisors | 0.00% | $0.00 | 2,200 | Apr 30, 2026 | Jun 24, 2026 |
|
DFQTX
U.S. CORE EQUITY 2 PORTFOLIO
|
MF | Dimensional Fund Advisors | 0.00% | $0.00 | 2,035 | Apr 30, 2026 | Jun 24, 2026 |
|
DFSTX
U.S. SMALL CAP PORTFOLIO
|
MF | Dimensional Fund Advisors | 0.00% | $0.00 | 88,364 | Apr 30, 2026 | Jun 24, 2026 |
|
DFVEX
U.S. VECTOR EQUITY PORTFOLIO
|
MF | Dimensional Fund Advisors | 0.00% | $0.00 | 9,794 | Apr 30, 2026 | Jun 24, 2026 |
|
SWTSX
Schwab Total Stock Market Index Fund
|
MF | Charles Schwab | 0.00% | $0.00 | 5,681 | Apr 30, 2026 | Jun 25, 2026 |
|
NSGRX
Small Cap Core Fund
|
MF | Independent / Boutique | 0.00% | $0.00 | 7,504 | Mar 31, 2026 | May 28, 2026 |
|
-
JNL/DFA U.S. Small Cap Fund
|
ETF | Independent / Boutique | 0.00% | $0.00 | 3,844 | Mar 31, 2026 | May 28, 2026 |
|
SSMHX
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
|
MF | State Street (SPDR) | 0.00% | $0.00 | 3,300 | Mar 31, 2026 | May 28, 2026 |
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