IRONWOOD INVESTMENT MANAGEMENT LLC — 13F Holdings & Portfolio
CIK 1127761 · latest 13F-HR filed 2026-08-14
IRONWOOD INVESTMENT MANAGEMENT LLC manages $289.2M in 13F-reported U.S. long-equity assets across 177 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are VTI (7.23%), EFA (4.73%), VICR (3.35%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 7 new positions, exited 9, added to 113, and trimmed 33.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
3RD FLOOR
BOSTON, MA 02110
$289.2M
Long-equity book
177
Distinct positions
2026-06-30
Filed 2026-08-14
+7 / −9 / ↑113 / ↓33
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- Vicor Corp$4.7M +94.8%
- MYR Group$3.9M +77.3%
- Vanguard Total Stock Market ET$3.5M +20.3%
- Ttm Technologies Inc$2.9M +90.3%
- Extreme Networks Inc.$2.8M +115.3%
Top Trims
- Pegasystems Inc-$972.3K -29.2%
- Sm Energy Company-$836.9K -28.1%
- Group 1 Automotive-$577.2K -11.9%
- Mckesson Corporation-$362.8K -12.7%
- Zoetis Inc.-$362.7K -37.1%
New Positions
- HNI Corporation$2.1M
- Texas Pacific Land Corporation$1.4M
- Astronics Class B Convertible$444.6K
- Replimune Group Inc.$238.3K
- Deere & Co$203.0K
Exited Positions
- TRI Pointe Group, Inc.$1.1M
- Intercontinental Exchange, Inc$919.8K
- Sunopta Inc F$798.6K
- KalVista Pharmaceuticals$336.4K
- Western Digital Corp$335.4K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | Vanguard Total Stock Market ET | VTI | 922908769 | $20.9M | 7.23% | 56,505 | SH |
| 2 | Msci Eafe | EFA | 464287465 | $13.7M | 4.73% | 131,779 | SH |
| 3 | Vicor Corp | VICR | 925815102 | $9.7M | 3.35% | 25,507 | SH |
| 4 | MYR Group | MYRG | 55405W104 | $8.9M | 3.06% | 17,700 | SH |
| 5 | iShares Short Treasury Bond ET | SHV | 464288679 | $7.5M | 2.59% | 67,806 | SH |
| 6 | Dycom Industries Inc | DY | 267475101 | $7.1M | 2.47% | 14,125 | SH |
| 7 | Ttm Technologies Inc | TTMI | 87305R109 | $6.0M | 2.09% | 32,331 | SH |
| 8 | Extreme Networks Inc. | EXTR | 30226D106 | $5.2M | 1.81% | 161,853 | SH |
| 9 | iShares Russell 3000 ETF | IWV | 464287689 | $5.2M | 1.79% | 12,154 | SH |
| 10 | Cytokinetics Inc | CYTK | 23282W605 | $4.8M | 1.67% | 56,589 | SH |
| 11 | Citigroup Inc New | C | 172967424 | $4.7M | 1.62% | 33,462 | SH |
| 12 | BridgeBio Pharma Inc. | BBIO | 10806X102 | $4.6M | 1.58% | 61,163 | SH |
| 13 | Mercury Systems | MRCY | 589378108 | $4.5M | 1.54% | 36,457 | SH |
| 14 | Vanguard FTSE Emerging Markets | VWO | 922042858 | $4.3M | 1.50% | 72,554 | SH |
| 15 | Group 1 Automotive | GPI | 398905109 | $4.3M | 1.47% | 14,627 | SH |
| 16 | Arrow Electronics | ARW | 042735100 | $4.1M | 1.42% | 19,295 | SH |
| 17 | Somnigroup International Inc. | SGI | 88023U101 | $3.7M | 1.28% | 47,124 | SH |
| 18 | ASML Holding N.V. | ASML | N07059210 | $3.7M | 1.27% | 1,847 | SH |
| 19 | Coherent Corp | COHR | 19247G107 | $3.6M | 1.24% | 9,063 | SH |
| 20 | Griffon Corp | GFF | 398433102 | $3.4M | 1.17% | 34,647 | SH |
| 21 | Tutor Perini Corp | TPC | 901109108 | $3.3M | 1.15% | 40,160 | SH |
| 22 | Impinj, Inc. | PI | 453204109 | $3.3M | 1.15% | 23,262 | SH |
| 23 | General Mtrs Corp | GM | 37045V100 | $3.3M | 1.13% | 42,500 | SH |
| 24 | Super Micro Computer, Inc. | SMCI | 86800U302 | $3.2M | 1.10% | 108,638 | SH |
| 25 | Commercial Vehicle Group | CVGI | 202608105 | $3.1M | 1.08% | 677,040 | SH |
| 26 | Watts Water Tech Inc A Class A | WTS | 942749102 | $2.8M | 0.98% | 7,210 | SH |
| 27 | Fidelity Total Market Index Fu | SAIDF | 315911693 | $2.7M | 0.93% | 12,965 | SH |
| 28 | Barrett Business Services Inc. | BBSI | 068463108 | $2.7M | 0.92% | 74,741 | SH |
| 29 | Koppers Holdings Inc. | KOP | 50060P106 | $2.6M | 0.90% | 58,116 | SH |
| 30 | Cisco Systems Inc | CSCO | 17275R102 | $2.6M | 0.90% | 22,200 | SH |
| 31 | Williams Sonoma | WSM | 969904101 | $2.5M | 0.88% | 10,926 | SH |
| 32 | Mckesson Corporation | MCK | 58155Q103 | $2.5M | 0.86% | 3,305 | SH |
| 33 | Astronics Corporation | ATRO | 046433108 | $2.4M | 0.83% | 29,430 | SH |
| 34 | Pegasystems Inc | PEGA | 705573103 | $2.4M | 0.82% | 78,843 | SH |
| 35 | Darling Ingredients, Inc. | DAR | 237266101 | $2.3M | 0.80% | 42,464 | SH |
| 36 | NPK International, Inc. | NPKI | 651718504 | $2.2M | 0.77% | 140,567 | SH |
| 37 | Ishares Russell 2000 | IWM | 464287655 | $2.2M | 0.75% | 7,231 | SH |
| 38 | Onto Innovation | ONTO | 683344105 | $2.2M | 0.74% | 5,691 | SH |
| 39 | Sm Energy Company | SM | 78454L100 | $2.1M | 0.74% | 81,890 | SH |
| 40 | HNI Corporation | HNI | 404251100 | $2.1M | 0.73% | 52,031 | SH |
| 41 | Franco-Nevada | FNV | 351858105 | $2.1M | 0.72% | 10,018 | SH |
| 42 | Freshpet Inc. | FRPT | 358039105 | $2.1M | 0.72% | 35,193 | SH |
| 43 | Kohls | KSS | 500255104 | $2.0M | 0.69% | 112,800 | SH |
| 44 | Hanover Insurance Group | THG | 410867105 | $2.0M | 0.68% | 9,232 | SH |
| 45 | Aurinia Pharmaceuticals | AUPH | 05156V102 | $1.9M | 0.67% | 113,387 | SH |
| 46 | Schwab Emerging Mrkets Equity | SCHE | 808524706 | $1.9M | 0.65% | 52,159 | SH |
| 47 | Goosehead Insurance Inc. | GSHD | 38267D109 | $1.9M | 0.65% | 38,750 | SH |
| 48 | Kopin Corporation | KOPN | 500600101 | $1.9M | 0.64% | 413,323 | SH |
| 49 | Pagaya Technologies Ltd. | PGY | M7S64L123 | $1.8M | 0.62% | 98,735 | SH |
| 50 | Steven Madden Ltd | SHOO | 556269108 | $1.8M | 0.61% | 41,822 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $289.2M | 177 | 0001376474-26-000566 |
| 2026-03-31 | 2026-05-15 | $239.8M | 179 | 0001376474-26-000378 |
| 2025-12-31 | 2026-02-12 | $237.8M | 172 | 0001376474-26-000161 |
| 2025-09-30 | 2025-11-13 | $229.3M | 171 | 0001376474-25-000926 |