New Positions
16 managers initiated
Top five by reported value
TACOW TACOW
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
16 new18 added30 reduced12 exited
Total Institutional Holders
64
as of 2025-12-31
Top Holder
Centiva Capital, LP
$18.2M
Largest QoQ Increase
BERKLEY W R CORP
+925,514 sh
Largest QoQ Decrease
Governors Lane LP
-980,451 sh
New Positions(16)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Verbena Value LP | 897,745 | +897,745 | $9.1M | +$9.1M | — |
| BANK OF MONTREAL /CAN/ | 513,500 | +513,500 | $5.2M | +$5.2M | — |
| Lineage Point Capital LP | 479,502 | +479,502 | $4.9M | +$4.9M | — |
| CANTOR FITZGERALD, L. P. | 440,434 | +440,434 | $4.5M | +$4.5M | — |
| Westchester Capital Management, LLC | 433,460 | +433,460 | $4.4M | +$4.4M | — |
| Fort Baker Capital Management LP | 352,163 | +352,163 | $3.6M | +$3.6M | — |
| Logan Stone Capital, LLC | 316,198 | +316,198 | $3.2M | +$3.2M | — |
| Mercuria Capital Strategies, LLC | 270,908 | +270,908 | $2.7M | +$2.7M | — |
| BARCLAYS PLC | 100,000 | +100,000 | $1.0M | +$1.0M | — |
| UBS OCONNOR LLC | 100,000 | +100,000 | $1.0M | +$1.0M | — |
| BlueCrest Capital Management Ltd | 96,413 | +96,413 | $1.0M | +$1.0M | — |
| ABC ARBITRAGE SA | 30,000 | +30,000 | $304.2K | +$304.2K | — |
| READYSTATE ASSET MANAGEMENT LP | 18,398 | +18,398 | $186.6K | +$186.6K | — |
| Mint Tower Capital Management B.V. | 410,668 | +410,668 | $4.2K | +$4.2K | — |
| HRT FINANCIAL LP | 18,843 | +18,843 | $191 | +$191 | — |
| FNY Investment Advisers, LLC | 2,600 | +2,600 | $26 | +$26 | — |
Added To(18)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| BERKLEY W R CORP | 1,024,734 | +925,514 | $10.4M | +$9.4M | 932.8% |
| Centiva Capital, LP | 1,791,194 | +389,416 | $18.2M | +$3.6M | 27.8% |
| CSS LLC/IL | 364,881 | +350,079 | $3.7M | +$3.5M | 2365.1% |
| MIZUHO SECURITIES USA LLC | 340,846 | +240,846 | $3.4M | +$2.4M | 240.8% |
| Linden Advisors LP | 1,500,000 | +250,000 | $15.2M | +$2.2M | 20.0% |
| Alpine Global Management, LLC | 300,000 | +175,597 | $3.0M | +$1.7M | 141.2% |
| Jefferies Financial Group Inc. | 130,774 | +111,860 | $1.3M | +$1.1M | 591.4% |
| K2 PRINCIPAL FUND, L.P. | 355,204 | +100,000 | $3.6M | +$947.6K | 39.2% |
| Shaolin Capital Management LLC | 292,974 | +92,974 | $3.0M | +$890.8K | 46.5% |
| Schonfeld Strategic Advisors LLC | 109,400 | +53,831 | $1.1M | +$531.4K | 96.9% |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | 173,906 | +43,750 | $1.8M | +$409.8K | 33.6% |
| D. E. Shaw & Co., Inc. | 278,043 | +28,043 | $2.8M | +$216.9K | 11.2% |
| Cannon Global Investment Management, LLC | 37,000 | +13,258 | $375.2K | +$128.3K | 55.8% |
| Periscope Capital Inc. | 195,000 | +15,600 | $2.0M | +$111.5K | 8.7% |
| WOLVERINE ASSET MANAGEMENT LLC | 33,489 | +9,704 | $339.6K | +$92.2K | 40.8% |
| CITADEL ADVISORS LLC | 60,531 | +7,252 | $613.8K | +$59.1K | 13.6% |
| Radcliffe Capital Management, L.P. | 347,482 | +3,100 | $3.5M | -$58.1K | 0.9% |
| Diametric Capital, LP | 54,258 | +4,258 | $550.2K | +$30.2K | 8.5% |
Reduced(30)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 500,000 | -500,000 | $5.1M | -$5.3M | -50.0% |
| Verition Fund Management LLC | 190,901 | -355,252 | $1.9M | -$3.7M | -65.0% |
| Saba Capital Management, L.P. | 350,000 | -350,000 | $3.5M | -$3.7M | -50.0% |
| First Trust Capital Management L.P. | 774,998 | -225,000 | $7.9M | -$2.5M | -22.5% |
| Massar Capital Management, LP | 180,000 | -180,000 | $1.8M | -$1.9M | -50.0% |
| TORONTO DOMINION BANK | 295,522 | -159,419 | $3.0M | -$1.7M | -35.0% |
| Polar Asset Management Partners Inc. | 1,100,000 | -100,000 | $11.2M | -$1.3M | -8.3% |
| HEIGHTS CAPITAL MANAGEMENT, INC | 100,000 | -100,000 | $1.0M | -$1.1M | -50.0% |
| Magnetar Financial LLC | 1,650,000 | 0 | $16.7M | -$445.5K | 0.0% |
| Rangeley Capital, LLC | 289,514 | -27,536 | $2.9M | -$361.6K | -8.7% |
| Hudson Bay Capital Management LP | 1,266,599 | 0 | $12.8M | -$342.0K | 0.0% |
| AQR Arbitrage LLC | 1,125,872 | 0 | $11.4M | -$304.0K | 0.0% |
| MOORE CAPITAL MANAGEMENT, LP | 1,000,000 | 0 | $10.1M | -$260.0K | 0.0% |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 800,000 | 0 | $8.1M | -$208.0K | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 799,248 | 0 | $8.1M | -$207.8K | 0.0% |
| LMR Partners LLP | 772,757 | 0 | $7.8M | -$200.9K | 0.0% |
| Wealthspring Capital LLC | 292,805 | -7,195 | $3.0M | -$151.0K | -2.4% |
| PRELUDE CAPITAL MANAGEMENT, LLC | 13,500 | -13,715 | $136.9K | -$146.1K | -50.4% |
| UBS Group AG | 568 | -13,556 | $5.8K | -$141.1K | -96.0% |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 500,000 | 0 | $5.1M | -$135.0K | 0.0% |
| DLD Asset Management, LP | 168,806 | -109,326 | $1.7M | -$116.6K | -39.3% |
| GOLDMAN SACHS GROUP INC | 405,124 | 0 | $4.1M | -$105.3K | 0.0% |
| ARISTEIA CAPITAL LLC | 337,650 | 0 | $3.4M | -$87.8K | 0.0% |
| Alberta Investment Management Corp | 250,000 | 0 | $2.5M | -$67.5K | 0.0% |
| Clear Street Group Inc. | 219,747 | -967 | $2.2M | -$67.2K | -0.4% |
| Context Capital Management, LLC | 250,000 | 0 | $2.5M | -$65.0K | 0.0% |
| GRITSTONE ASSET MANAGEMENT LLC | 98,853 | 0 | $1.0M | -$25.7K | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 61,147 | 0 | $620.0K | -$16.5K | 0.0% |
| Tuttle Capital Management, LLC | 40,000 | 0 | $405.6K | -$10.4K | 0.0% |
| GLAZER CAPITAL, LLC | 1,450,000 | -341,122 | $14.7K | -$3.9K | -19.0% |
Sold Out(12)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Governors Lane LP | 0 | -980,451 | $0 | -$10.2M | — |
| MILLENNIUM MANAGEMENT LLC | 0 | -401,820 | $0 | -$4.2M | — |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 0 | -395,129 | $0 | -$4.1M | — |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | 0 | -300,300 | $0 | -$3.1M | — |
| BCK Capital Management LP | 0 | -172,148 | $0 | -$1.8M | — |
| FIFTH LANE CAPITAL, LP | 0 | -150,000 | $0 | -$1.6M | — |
| Waratah Capital Advisors Ltd. | 0 | -141,907 | $0 | -$1.5M | — |
| Sculptor Capital LP | 0 | -118,108 | $0 | -$1.2M | — |
| Jain Global LLC | 0 | -82,774 | $0 | -$861.7K | — |
| Bulldog Investors, LLP | 0 | -69,163 | $0 | -$719.3K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0 | -58,732 | $0 | -$611.4K | — |
| MORGAN STANLEY | 0 | -227 | $0 | -$2.4K | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| Centiva Capital, LP | 1,791,194 | $18.2M | +389,416 | 27.8% |
| Magnetar Financial LLC | 1,650,000 | $16.7M | 0 | 0.0% |
| Linden Advisors LP | 1,500,000 | $15.2M | +250,000 | 20.0% |
| Hudson Bay Capital Management LP | 1,266,599 | $12.8M | 0 | 0.0% |
| AQR Arbitrage LLC | 1,125,872 | $11.4M | 0 | 0.0% |
| Polar Asset Management Partners Inc. | 1,100,000 | $11.2M | -100,000 | -8.3% |
| BERKLEY W R CORP | 1,024,734 | $10.4M | +925,514 | 932.8% |
| MOORE CAPITAL MANAGEMENT, LP | 1,000,000 | $10.1M | 0 | 0.0% |
| Verbena Value LP | 897,745 | $9.1M | +897,745 | — |
| TENOR CAPITAL MANAGEMENT Co., L.P. | 800,000 | $8.1M | 0 | 0.0% |
| TWO SIGMA INVESTMENTS, LP | 799,248 | $8.1M | 0 | 0.0% |
| First Trust Capital Management L.P. | 774,998 | $7.9M | -225,000 | -22.5% |
| LMR Partners LLP | 772,757 | $7.8M | 0 | 0.0% |
| BANK OF MONTREAL /CAN/ | 513,500 | $5.2M | +513,500 | — |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | 500,000 | $5.1M | 0 | 0.0% |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 500,000 | $5.1M | -500,000 | -50.0% |
| Lineage Point Capital LP | 479,502 | $4.9M | +479,502 | — |
| CANTOR FITZGERALD, L. P. | 440,434 | $4.5M | +440,434 | — |
| Westchester Capital Management, LLC | 433,460 | $4.4M | +433,460 | — |
| GOLDMAN SACHS GROUP INC | 405,124 | $4.1M | 0 | 0.0% |
New & Closed Positions this quarter
Closed Positions
12 managers exited
Top five by prior-quarter value
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for TACOW against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.