GTEN — Institutional owners (13F)

58 filers · $350.1M total · As of June 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institution Value Shares % of tracked 13F Type
Fort Baker Capital Management LP $34,903,807 3,346,482 9.97% Shares
Meteora Capital, LLC $22,215,212 2,129,934 6.35% Shares
TENOR CAPITAL MANAGEMENT Co., L.P. $20,860,000 2,000,000 5.96% Shares
Alberta Investment Management Corp $20,860,000 2,000,000 5.96% Shares
Empyrean Capital Partners, LP $15,384,250 1,475,000 4.39% Shares
Linden Advisors LP $15,384,250 1,475,000 4.39% Shares
Sculptor Capital LP $15,199,639 1,457,300 4.34% Shares
MOORE CAPITAL MANAGEMENT, LP $12,776,750 1,225,000 3.65% Shares
AQR Arbitrage LLC $11,151,860 1,069,210 3.19% Shares
Polar Asset Management Partners Inc. $10,951,500 1,050,000 3.13% Shares
Magnetar Financial LLC $10,667,011 1,022,724 3.05% Shares
Verition Fund Management LLC $10,554,565 1,011,943 3.01% Shares
D. E. Shaw & Co., Inc. $9,387,000 900,000 2.68% Shares
ARISTEIA CAPITAL, L.L.C. $8,344,000 800,000 2.38% Shares
Centiva Capital, LP $8,339,421 799,561 2.38% Shares
PICTON MAHONEY ASSET MANAGEMENT $7,301,002 700,000 2.09% Shares
MMCAP International Inc. SPC $7,301,000 700,000 2.09% Shares
Calamos Advisors LLC $7,301,000 700,000 2.09% Shares
LMR Partners LLP $7,301,000 700,000 2.09% Shares
Governors Lane LP $7,015,823 672,658 2.00% Shares
Radcliffe Capital Management, L.P. $6,858,382 657,563 1.96% Shares
TWO SIGMA INVESTMENTS, LP $5,720,010 548,419 1.63% Shares
Westchester Capital Management, LLC $5,372,212 515,073 1.53% Shares
HBK INVESTMENTS L P $5,215,000 500,000 1.49% Shares
BERKLEY W R CORP $5,135,419 492,370 1.47% Shares
O'Connor Alternative Investments LLC $4,952,122 474,796 1.41% Shares
Lighthouse Investment Partners, LLC $4,432,750 425,000 1.27% Shares
Ghisallo Capital Management LLC $4,172,000 400,000 1.19% Shares
GOLDMAN SACHS GROUP INC $3,876,330 371,652 1.11% Shares
Periscope Capital Inc. $3,695,349 354,300 1.06% Shares
MILLENNIUM MANAGEMENT LLC $3,254,160 312,000 0.93% Shares
TORONTO DOMINION BANK $2,820,314 270,404 0.81% Shares
Lineage Point Capital LP $2,819,531 270,329 0.81% Shares
HGC Investment Management Inc. $2,607,500 250,000 0.74% Shares
Schonfeld Strategic Advisors LLC $2,503,200 240,000 0.71% Shares
Shaolin Capital Management LLC $2,452,281 235,118 0.70% Shares
READYSTATE ASSET MANAGEMENT LP $2,217,418 212,600 0.63% Shares
RIVERNORTH CAPITAL MANAGEMENT, LLC $2,126,604 198,748 0.61% Shares
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $2,090,620 200,443 0.60% Shares
DLD Asset Management, LP $1,833,657 175,806 0.52% Shares
MIZUHO SECURITIES USA LLC $1,746,746 169,587 0.50% Shares
SONA ASSET MANAGEMENT (US) LLC $1,661,134 159,265 0.47% Shares
CLEAR STREET LLC $1,587,807 154,908 0.45% Shares
SkyView Investment Advisors, LLC $1,565,000 150,000 0.45% Shares
Context Capital Management, LLC $1,043,000 100,000 0.30% Shares
HIGHBRIDGE CAPITAL MANAGEMENT LLC $1,042,000 100,000 0.30% Shares
Harraden Circle Investments, LLC $657,090 63,000 0.19% Shares
Quarry LP $642,822 61,632 0.18% Shares
Sandia Investment Management LP $631,728 61,632 0.18% Shares
UBS Group AG $521,500 50,000 0.15% Shares
JPMORGAN CHASE & CO $519,322 49,839 0.15% Shares
BNP PARIBAS FINANCIAL MARKETS $436,642 41,864 0.12% Shares
K2 PRINCIPAL FUND, L.P. $302,397 28,993 0.09% Shares
GEODE CAPITAL MANAGEMENT, LLC $254,012 24,354 0.07% Shares
HighTower Advisors, LLC $130,375 12,500 0.04% Shares
GLAZER CAPITAL, LLC $9,527 913,387 0.00% Shares
Clear Street Group Inc. $5,006 480 0.00% Shares
MORGAN STANLEY $229 22 0.00% Shares