Closelook Records · Manager
Mangrove Partners
Two official windows, both partial: a sworn SEC 13F filing (US-listed longs only, as of quarter end, up to 45 days old) and holder-level European short registers (only positions above the 0.5% threshold). No return series is public, so no Closelook Rating — the record shows positioning, not performance.
The record, as shown at the source
| Metric | Value | As of | Source |
|---|---|---|---|
| 13F book (Q2 2026) | $1.5B across 403 positions | 2026-06-30, filed 14 Aug 2026 | SEC EDGAR 13F-HR ↗ |
| Top position | Indivior — 7.2% of the 13F book | 2026-06-30, filed 14 Aug 2026 | SEC EDGAR 13F-HR ↗ |
| Disclosed short positions | 3 in the Germany registers | as published, 2026-10-24 | Bundesanzeiger ↗ |
Figures are quoted exactly as the named source showed them on the stated date; they move daily — verify at the source before relying on them.
The Closelook battery insufficient data
No verifiable daily series is publicly available for this record yet, so we compute no battery and no rating — a missing series never becomes a low score. What would unlock it is described in the grade basis above and in the methodology.
The 13F-HR book as of 2026-06-30
$1.5B across 403 issuers, reported for quarter end 2026-06-30 and filed 2026-08-14 — the figures below are already up to a quarter old by construction. 13F-HR covers long US-listed equity positions only, as of quarter end, filed up to 45 days later. Not the whole book.
| # | Issuer | Value | Weight |
|---|---|---|---|
| 1 | INDIVIOR PHARMACEUTICALS INC | $0.1B | 7.2% |
| 2 | VISTANCE NETWORKS INC | $0.1B | 6% |
| 3 | ATMUS FILTRATION TECHNOLOGIE | $0.1B | 4.1% |
| 4 | FLYWIRE CORPORATION | $0.1B | 3.4% |
| 5 | MILLICOM INTL CELLULAR S A | $0.1B | 3.3% |
| 6 | REX AMERICAN RES CORP | $0.0B | 3% |
| 7 | KEURIG DR PEPPER INC | $0.0B | 2.9% |
| 8 | MILLROSE PPTYS INC | $0.0B | 2.7% |
| 9 | ACADIA HEALTHCARE COMPANY IN | $0.0B | 2.7% |
| 10 | PG&E CORP | $0.0B | 2.7% |
Quarter rotation vs 2026-03-31
New positions (188)
- ACADIA HEALTHCARE COMPANY IN $0.0B
- ISHARES TR — RUSSELL 2000 ETF $0.0B
- APARTMENT INVT & MGMT CO $0.0B
- DISCIPLINED GROWTH $0.0B
- QUANTUM LEAP ACQUISITION COR $0.0B
- GREIF INC $0.0B
- ARC GROUP ACQUISITION I CORP $0.0B
- BREEZE ACQUISITION CORP II $0.0B
Exited (193)
- TRIPADVISOR INC was $0.0B
- BITWISE SOLANA STAKING ETF was $0.0B
- VOYAGER ACQUISITION CORP was $0.0B
- FACT II ACQUISITION CORP was $0.0B
- A PARADISE ACQUISITION CORP was $0.0B
- AES CORP was $0.0B
- TXNM ENERGY INC was $0.0B
- BLUE FOUNDRY BANCORP was $0.0B
Added (shares) (44)
- VISTANCE NETWORKS INC +59843.4%
- APTIV PLC +1924.4%
- OPEN TEXT CORP +64.9%
- BEL FUSE INC +8105.8%
- CLEARTHINK 1 ACQUISITION COR +74.4%
- PONO CAP FOUR INC +100%
- SUMA ACQUISITION CORP +100%
- XFLH CAP CORP +100%
Trimmed (shares) (61)
- INDIVIOR PHARMACEUTICALS INC -2.4%
- ATMUS FILTRATION TECHNOLOGIE -7.9%
- GRAYSCALE ETHEREUM STAKING -37.2%
- AXIOM INTELLIGENCE AC CORP 1 -49%
- IRON HORSE ACQUISIT II CORP -16.6%
- SPACSPHERE ACQUISITION CORP -20%
- NORTHWESTERN ENERGY GROUP IN -17.7%
- VIEMED HEALTHCARE INC -8.1%
Direction from aggregated share counts (CUSIP-matched across quarters); counts are complete; lists show the largest moves by value, up to eight each.
Aggregated by issuer from the information table at SEC EDGAR.
Disclosed shorts — the other side of the book
3 current net short positions published under this manager's legal entities in the official German (Bundesanzeiger) and Norwegian (Finanstilsynet) registers. Positions appear only above the 0.5% publication threshold, so these are a floor, not the full short book — and the 13F above shows only US-listed longs. As of 2026-10-31.
| Company | Register | Net short | Position date |
|---|---|---|---|
| Iperionx Ltd | DE | 1.06% | 2025-04-17 |
| HYLIION HOLDINGS CORP. | DE | 0.92% | 2026-10-23 |
| GO Residential Real Estate Investment Trust | DE | 0.56% | 2026-09-09 |
All register positions: Short Registers board.
Fast lane — 5% stakes (Schedule 13D/G)
Filed with the SEC within days of crossing 5% of a company's shares (13D amendments within two business days) — far faster than the quarterly 13F. 13D signals possible activist intent, 13G a passive stake. Last 365 days, 4 filings, newest first.
| Filed | Company | Type | Stake as filed |
|---|---|---|---|
| 2026-07-20 | ClearThink 1 Acquisition Corp. | 13G · passive | 8.43% |
| 2026-07-20 | ChampionsGate Acquisition Corporation · amendment | 13G · passive | 2.78% · below 5% / exited |
| 2025-11-14 | Mereo BioPharma Group plc · amendment | 13G · passive | 4.9% · below 5% / exited |
| 2025-11-14 | ChampionsGate Acquisition Corp | 13G · passive | 5.71% |
The Closelook read
$1.5B of US-listed longs across 403 positions, 188 new positions and 193 exits against the prior quarter — and 3 disclosed short positions in Germany, the largest Iperionx Ltd at 1.06%.
Mangrove Partners is one of the managers whose record is visible from both sides at once. The quarterly 13F shows the long book in US-listed equities — $1.5B across 403 positions for Q2 2026, with 188 new positions and 193 exits against the prior quarter. The largest position is Indivior at 7.2% of the book. The European short registers show the other side: 3 current net short positions published under its legal entities in Germany, the largest in Iperionx Ltd at 1.06%. Neither window is the whole book — the 13F omits shorts, non-US positions and anything below the reporting line; the registers show only shorts above 0.5% in two countries — which is why the record grades B+ and carries no rating: it documents positioning as filed, not returns.
Entry updated 24 Oct 2026 · All records · Famous Calls Record