Who owns GMTL
Which tracked institutional funds hold GMTL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GMTL company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-14). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
13 tracked funds added or opened GMTL while 12 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
GMTL’s largest tracked holder by dollar value, DONALD SMITH & CO., INC., sizes it at 0.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GMTL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 44 tracked filers holding GMTL, 34 increased or opened the position and 17 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in GMTL between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 7
- Philosophy Capital Management LLC$12M
- ARDSLEY ADVISORY PARTNERS LP$6M
- Verition Fund Management LLC$3M
- Castle Hook Partners LP$1M
- SummitTX Capital, L.P.$1M
- Panoramic Capital, LLC$981K
Full exits 5
- DONALD SMITH & CO., INC.$26M
- T. Rowe Price Investment Management, Inc.$19M
- CITADEL ADVISORS LLC$1M
- HRT FINANCIAL LP$752K
- Cambridge Investment Research Advisors, Inc.$546K
Largest adds
- BANK OF MONTREAL /CAN/$5M
- WESTERLY CAPITAL MANAGEMENT, LLC$3M
- Potrero Capital Research LLC$3M
- Driehaus Capital Management LLC$2M
- BANK OF AMERICA CORP /DE/$1M
- JPMORGAN CHASE & CO$600K
Largest trims
- PICTON MAHONEY ASSET MANAGEMENT$1M
- JANE STREET GROUP, LLC$791K
- ArrowMark Colorado Holdings LLC$716K
- MILLENNIUM MANAGEMENT LLC$689K
- Monaco Asset Management SAM$584K
- Aventail Capital Group, LP$564K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Philosophy Capital Management LLC new | 871,708 | $12M | 9.5% | 2026-Q2 |
| Driehaus Capital Management LLC added | 860,026 | $12M | 9.4% | 2026-Q2 |
| Potrero Capital Research LLC added | 629,393 | $9M | 6.9% | 2026-Q2 |
| Aventail Capital Group, LP added | 497,219 | $7M | 5.4% | 2026-Q2 |
| ARDSLEY ADVISORY PARTNERS LP new | 400,000 | $6M | 4.4% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ added | 243,279 | $5M | 3.7% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT trimmed | 292,832 | $4M | 3.2% | 2026-Q2 |
| Diametric Capital, LP added | 209,761 | $3M | 2.3% | 2026-Q2 |
| WESTERLY CAPITAL MANAGEMENT, LLC added | 200,000 | $3M | 2.2% | 2026-Q2 |
| Verition Fund Management LLC new | 195,000 | $3M | 2.1% | 2026-Q2 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | 150,000 | $2M | 1.6% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 106,623 | $1M | 1.2% | 2026-Q2 |
| Castle Hook Partners LP new | 95,000 | $1M | 1.0% | 2026-Q2 |
| SummitTX Capital, L.P. new | 92,108 | $1M | 1.0% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 76,992 | $1M | 0.8% | 2026-Q2 |
| Panoramic Capital, LLC new | 70,000 | $981K | 0.8% | 2026-Q2 |
| ArrowMark Colorado Holdings LLC trimmed | 68,567 | $961K | 0.7% | 2026-Q2 |
| Mercuria Capital Strategies, LLC added | 67,984 | $952K | 0.7% | 2026-Q2 |
| Clearline Capital LP new | 65,939 | $924K | 0.7% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 57,311 | $803K | 0.6% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 57,011 | $802K | 0.6% | 2026-Q2 |
| WEXFORD CAPITAL LP added | 37,822 | $530K | 0.4% | 2026-Q2 |
| CI INVESTMENTS INC. new | 34,406 | $482K | 0.4% | 2026-Q2 |
| MARSHALL WACE, LLP new | 32,336 | $453K | 0.4% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 23,631 | $331K | 0.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC new | 22,972 | $322K | 0.3% | 2026-Q2 |
| Phoenix Financial Ltd. new | 21,022 | $294K | 0.2% | 2026-Q2 |
| XTX Topco Ltd new | 20,715 | $290K | 0.2% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 16,584 | $232K | 0.2% | 2026-Q2 |
| Worth Venture Partners, LLC new | 15,120 | $212K | 0.2% | 2026-Q2 |
| GILDER GAGNON HOWE & CO LLC trimmed | 12,257 | $172K | 0.1% | 2026-Q2 |
| Monaco Asset Management SAM trimmed | 10,617 | $149K | 0.1% | 2026-Q2 |
| Persistent Asset Partners Ltd new | 10,347 | $145K | 0.1% | 2026-Q2 |
| Northwest & Ethical Investments L.P. trimmed | 5,958 | $84K | 0.1% | 2026-Q2 |
| State of Wyoming new | 5,767 | $81K | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS new | 4,516 | $63K | 0.0% | 2026-Q2 |
| UBS Group AG added | 2,101 | $29K | 0.0% | 2026-Q2 |
| PNC Financial Services Group, Inc. trimmed | 1,945 | $27K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA new | 1,960 | $27K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC new | 1,271 | $18K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP new | 500 | $8K | 0.0% | 2026-Q2 |
| MORGAN STANLEY added | 506 | $7K | 0.0% | 2026-Q2 |
| Accordant Advisory Group Inc new | 62 | $869 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 1 | $14 | 0.0% | 2026-Q2 |
| DONALD SMITH & CO., INC. new | 1,500,556 | $26M | 20.4% | 2026-Q1 stale (1 quarter behind) |
| T. Rowe Price Investment Management, Inc. new | 1,111,159 | $19M | 15.1% | 2026-Q1 stale (1 quarter behind) |
| CITADEL ADVISORS LLC new | 78,383 | $1M | 1.1% | 2026-Q1 stale (1 quarter behind) |
| HRT FINANCIAL LP new | 43,048 | $752K | 0.6% | 2026-Q1 stale (1 quarter behind) |
| Cambridge Investment Research Advisors, Inc. new | 31,256 | $546K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| TD Asset Management Inc new | 20,372 | $356K | 0.3% | 2026-Q1 stale (1 quarter behind) |
| Connective Capital Management, LLC new | 5,000 | $87K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Rachor Investment Advisory Services, LLC new | 50 | $874 | 0.0% | 2026-Q1 stale (1 quarter behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.