Who owns GASS
Which tracked institutional funds hold GASS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GASS company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
The tracked-fund tape on GASS is one-sided between 2026-Q1 and 2026-Q2: 1 added or opened and 13 trimmed or exited — on balance reducing.
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
GASS’s largest tracked holder by dollar value, Glendon Capital Management LP, sizes it at 4.7% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 4.7pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GASS 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 64 tracked filers holding GASS, 25 increased or opened the position and 35 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 GASS 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.
Full exits 4
- ACADIAN ASSET MANAGEMENT LLC$10M
- Janney Montgomery Scott LLC$1M
- GSA CAPITAL PARTNERS LLP$699K
- Quadrature Capital Ltd$599K
Largest adds
- Qube Research & Technologies Ltd$444K
Largest trims
- Glendon Capital Management LP$7M
- TOWERVIEW LLC$3M
- RENAISSANCE TECHNOLOGIES LLC$3M
- UBS Group AG$1M
- TWO SIGMA INVESTMENTS, LP$763K
- JANE STREET GROUP, LLC$507K
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 |
|---|---|---|---|---|
| Glendon Capital Management LP trimmed | 4,613,384 | $36M | 31.2% | 2026-Q2 |
| TOWERVIEW LLC added | 2,700,000 | $21M | 18.2% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,955,231 | $15M | 13.2% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 541,841 | $4M | 3.7% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 396,581 | $3M | 2.7% | 2026-Q2 |
| MORGAN STANLEY added | 323,865 | $3M | 2.2% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 239,469 | $2M | 1.6% | 2026-Q2 |
| MARSHALL WACE, LLP added | 200,307 | $2M | 1.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 158,984 | $1M | 1.1% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 83,792 | $662K | 0.6% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 83,304 | $658K | 0.6% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 79,485 | $628K | 0.5% | 2026-Q2 |
| Kestra Advisory Services, LLC | 78,700 | $622K | 0.5% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 72,884 | $576K | 0.5% | 2026-Q2 |
| Centiva Capital, LP trimmed | 70,569 | $557K | 0.5% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 64,557 | $510K | 0.4% | 2026-Q2 |
| NewEdge Advisors, LLC added | 62,191 | $491K | 0.4% | 2026-Q2 |
| BlackRock, Inc. added | 50,204 | $397K | 0.3% | 2026-Q2 |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS added | 50,138 | $396K | 0.3% | 2026-Q2 |
| UBS Group AG trimmed | 49,260 | $389K | 0.3% | 2026-Q2 |
| Militia Capital Management LLC | 46,005 | $363K | 0.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 42,861 | $339K | 0.3% | 2026-Q2 |
| WINTON GROUP Ltd added | 41,680 | $329K | 0.3% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 40,650 | $321K | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 40,180 | $317K | 0.3% | 2026-Q2 |
| R Squared Ltd trimmed | 37,847 | $299K | 0.3% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC added | 32,975 | $261K | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO | 30,311 | $239K | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. | 29,791 | $239K | 0.2% | 2026-Q2 |
| Sowell Financial Services LLC trimmed | 28,875 | $228K | 0.2% | 2026-Q2 |
| Mraz, Amerine & Associates, Inc. | 26,500 | $209K | 0.2% | 2026-Q2 |
| STATE STREET CORP trimmed | 25,936 | $205K | 0.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC | 24,192 | $191K | 0.2% | 2026-Q2 |
| OPPENHEIMER & CO INC added | 24,000 | $190K | 0.2% | 2026-Q2 |
| Focus Partners Wealth added | 21,800 | $172K | 0.1% | 2026-Q2 |
| LPL Financial LLC trimmed | 17,599 | $139K | 0.1% | 2026-Q2 |
| Tidal Investments LLC new | 16,413 | $130K | 0.1% | 2026-Q2 |
| IHT Wealth Management, LLC | 16,000 | $126K | 0.1% | 2026-Q2 |
| HSBC HOLDINGS PLC | 15,843 | $125K | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC trimmed | 15,713 | $124K | 0.1% | 2026-Q2 |
| Vestmark Advisory Solutions, Inc. added | 15,561 | $123K | 0.1% | 2026-Q2 |
| AXQ CAPITAL, LP trimmed | 15,127 | $120K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 12,041 | $96K | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND | 11,400 | $90K | 0.1% | 2026-Q2 |
| GROUP ONE TRADING LLC trimmed | 11,178 | $88K | 0.1% | 2026-Q2 |
| Naviter Wealth, LLC new | 11,038 | $87K | 0.1% | 2026-Q2 |
| MANGROVE PARTNERS IM, LLC new | 10,813 | $85K | 0.1% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC | 10,574 | $84K | 0.1% | 2026-Q2 |
| Sequoia Financial Advisors, LLC | 10,000 | $79K | 0.1% | 2026-Q2 |
| BARCLAYS PLC | 6,853 | $54K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 5,497 | $44K | 0.0% | 2026-Q2 |
| LOM Asset Management Ltd | 5,000 | $40K | 0.0% | 2026-Q2 |
| SIMPLEX TRADING, LLC trimmed | 4,178 | $33K | 0.0% | 2026-Q2 |
| VSM Wealth Advisory, LLC | 1,000 | $8K | 0.0% | 2026-Q2 |
| Quarry LP trimmed | 630 | $5K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. | 450 | $4K | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 276 | $2K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP new | 200 | $2K | 0.0% | 2026-Q2 |
| TD Waterhouse Canada Inc. | 100 | $795 | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 49 | $387 | 0.0% | 2026-Q2 |
| Glen Eagle Advisors, LLC | 24 | $190 | 0.0% | 2026-Q2 |
| Archer Investment Corp | 10 | $79 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 8 | $63 | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. trimmed | 2 | $16 | 0.0% | 2026-Q2 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 1,121,978 | $10M | 8.8% | 2026-Q1 stale (1 quarter behind) |
| Janney Montgomery Scott LLC added | 155,140 | $1M | 1.2% | 2026-Q1 stale (1 quarter behind) |
| GSA CAPITAL PARTNERS LLP added | 76,096 | $699K | 0.6% | 2026-Q1 stale (1 quarter behind) |
| Quadrature Capital Ltd added | 65,272 | $599K | 0.5% | 2026-Q1 stale (1 quarter behind) |
| Jump Financial, LLC trimmed | 28,652 | $263K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Oceanic Investment Management LTD new | 26,173 | $240K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| DGS Capital Management, LLC trimmed | 25,767 | $237K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Squarepoint Ops LLC added | 23,698 | $218K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| XTX Topco Ltd added | 16,020 | $147K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Graham Capital Management, L.P. new | 15,683 | $144K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| SG Americas Securities, LLC new | 14,362 | $132K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Cambridge Investment Research Advisors, Inc. new | 14,331 | $132K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Virtu Financial LLC added | 12,504 | $115K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Nipun Capital, L.P. trimmed | 11,455 | $105K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| Pinnacle Holdings, LLC trimmed | 5,849 | $54K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| TWO SIGMA ADVISERS, LP trimmed | 276,300 | $2M | 1.7% | 2025-Q4 stale (2 quarters behind) |
| Inspire Advisors, LLC trimmed | 11,833 | $83K | 0.1% | 2025-Q4 stale (2 quarters behind) |
| BANK OF AMERICA CORP /DE/ trimmed | 2,049 | $14K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Luminist Capital LLC new | 400 | $3K | 0.0% | 2025-Q4 stale (2 quarters behind) |
| CITIGROUP INC new | 1 | $7 | 0.0% | 2025-Q4 stale (2 quarters behind) |
| Cubist Systematic Strategies, LLC added | 63,484 | $416K | 0.4% | 2025-Q3 stale (3 quarters behind) |
| Invesco Ltd. trimmed | 24,946 | $163K | 0.1% | 2025-Q3 stale (3 quarters behind) |
| Perritt Capital Management Inc | 272 | $2K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| AMERICAN NATIONAL BANK & TRUST | 200 | $1K | 0.0% | 2025-Q3 stale (3 quarters behind) |
| PRINCIPAL SECURITIES, INC. | 27 | $177 | 0.0% | 2025-Q3 stale (3 quarters behind) |
| KINGSWOOD WEALTH ADVISORS, LLC | 21,000 | $135K | 0.1% | 2025-Q2 stale (4 quarters behind) |
| Federation des caisses Desjardins du Quebec trimmed | 150 | $962 | 0.0% | 2025-Q2 stale (4 quarters behind) |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale (4 quarters 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.