Portman Square Capital LLP

CIK 1966898 · EDGAR ↗

sum of disclosed values for 2026-03-31; 0 positions have no disclosed value and are left out of the sum, counted here rather than dropped: $2.6B
every reported holding for this filer and quarter, including ones with no disclosed value: 102
positions with no comparable holding in the prior quarter (kind new), 2026-03-31: 32
positions absent from this quarter's filing after being held last quarter (kind exit), 2026-03-31 — inferred from absence, not a sale record: 47

Quarter-end snapshot, filed up to 45 days later — not current holdings. What a 13F covers ↓

Changes · Quarter ended 2026-03-31. Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Position changes into quarter 2026-03-31
The reviewed ticker for the filed issuer name and share class, the same mapping the Reported positions table uses. Symbols are never inferred from names; — means no reviewed mapping.	position matched across quarters by exact reported CUSIP over a registry gap — never a name match	NEW / ADD / TRIM / EXIT by share count · NO CHANGE = same shares; the value moved with price, so never an ADD or a TRIM · EXIT = absent this quarter (disposed, delisted, confidential, or reported by an affiliate) — the filing does not say which · NO PRIOR = no comparable prior quarter on record (a first filing, or a quarter filed inside an affiliate's report), so not called a new stake · n/c = not classifiable: value undisclosed on one side of the pair, or neither shares nor value can classify it · †v: the reported share count is unchanged across the pair; this build's data classified the change from its reported value; builds from 2026-09-10 on read it as NO CHANGE	derived by Public Filings from the published data; “no value” means the source did not disclose a usable value — never zero	reported unit changed across the pair (SH↔PRN); the share delta is withheld rather than fabricated	Prev value	Curr value	Prev shares	Curr shares
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: GOLD SHS · position key `pos:11237` · issuer key `iss:1601` CALL	ADD	+$195M	+424,500	$142M	$337M	358,000	782,500
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:10718` · issuer key `iss:1311` PUT	TRIM	+$26.7M	−10,500	$176M	$203M	2,196,100	2,185,600
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:13738` · issuer key `iss:1698` PUT	ADD	+$11.8M	+29,700	$83.5M	$95.2M	957,000	986,700
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:10246` · issuer key `iss:906` PUT	ADD	+$11.2M	+497,100	$68.1M	$79.3M	2,834,700	3,331,800
—	share class as filed: UNIT 02/15/2029 · position key `pos:12722` · issuer key `iss:1396`	NEW	+$78.3M	+1,530,000	$0	$78.3M	—	1,530,000
—	share class as filed: UNIT 12/15/2028 · position key `pos:12300` · issuer key `iss:1698`	TRIM	−$19.7M	−450,000	$88.9M	$69.2M	1,786,000	1,336,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:17365` · issuer key `iss:1396` PUT	NEW	+$67.8M	+1,775,000	$0	$67.8M	—	1,775,000
—	share class as filed: DEP SHS REPSTG · position key `pos:12357` · issuer key `iss:1227`	ADD	+$60.1M	+1,050,000	$7.3M	$67.5M	125,000	1,175,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:16072` · issuer key `iss:1370` PUT	NEW	+$66.9M	+455,000	$0	$66.9M	—	455,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:12151` · issuer key `iss:1391` PUT	TRIM	+$2.5M	−200,700	$64.3M	$66.8M	4,004,000	3,803,300
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: SHS CLASS A · position key `pos:11841` · issuer key `iss:2300` PUT	TRIM	+$12.2M	−7,800	$54.2M	$66.3M	647,100	639,300
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:14439` · issuer key `iss:66` PUT	TRIM	−$12.2M	−185,300	$78.3M	$66.1M	553,500	368,200
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:17214` · issuer key `iss:298` PUT	TRIM	−$43.9M	−176,200	$106M	$61.9M	487,000	310,800
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:11213` · issuer key `iss:1227` PUT	ADD	+$17.5M	+263,400	$35.3M	$52.8M	554,400	817,800
—	share class as filed: UNIT 11/01/2028 · position key `pos:17944` · issuer key `iss:1329`	ADD	+$29.1M	+550,000	$22.3M	$51.4M	410,000	960,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM CL A · position key `pos:13865` · issuer key `iss:515` PUT	NEW	+$42.6M	+550,000	$0	$42.6M	—	550,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:17033` · issuer key `iss:60` PUT	TRIM	+$6.4M	−35,800	$33.2M	$39.5M	380,000	344,200
—	share class as filed: 7.25% DEP SHS A · position key `pos:11776` · issuer key `iss:66`	TRIM	−$1.8M	−150,000	$40.7M	$39.0M	691,000	541,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: SPONSORED ADS · position key `pos:15694` · issuer key `iss:72` PUT	ADD	−$4.5M	+12,100	$41.5M	$37.0M	282,900	295,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM · position key `pos:11796` · issuer key `iss:1134` PUT	ADD	+$8.1M	+40,000	$28.1M	$36.1M	197,000	237,000

Flags: no row carries a flag.

1–20 of the 100 changes on this page

Mark-to-market only (no share change) · 9

Positions whose share count is identical in both quarters; the value changed with price, not with a decision.

Positions held with no share change into quarter 2026-03-31
The reviewed ticker for the filed issuer name and share class, the same mapping the Reported positions table uses. Symbols are never inferred from names; — means no reviewed mapping.	position matched across quarters by exact reported CUSIP over a registry gap — never a name match	NEW / ADD / TRIM / EXIT by share count · NO CHANGE = same shares; the value moved with price, so never an ADD or a TRIM · EXIT = absent this quarter (disposed, delisted, confidential, or reported by an affiliate) — the filing does not say which · NO PRIOR = no comparable prior quarter on record (a first filing, or a quarter filed inside an affiliate's report), so not called a new stake · n/c = not classifiable: value undisclosed on one side of the pair, or neither shares nor value can classify it · †v: the reported share count is unchanged across the pair; this build's data classified the change from its reported value; builds from 2026-09-10 on read it as NO CHANGE	derived by Public Filings from the published data; “no value” means the source did not disclose a usable value — never zero	Prev value	Curr value	Prev shares	Curr shares
—	share class as filed: NOTE 4.500%12/1 · position key `pos:10298` · issuer key `iss:694` PRN	NO CHANGE	+$2.6M	$24.4M	$27.0M	20,000,000	20,000,000
—	share class as filed: PFD CONV SER A · position key `pos:17338` · issuer key `iss:1391`	NO CHANGE	+$823K	$15.6M	$16.5M	381,000	381,000
—	share class as filed: 7.625 MAND CONV · position key `pos:11699` · issuer key `iss:906`	NO CHANGE	−$243K	$14.6M	$14.3M	220,000	220,000
—	share class as filed: NOTE 2.250% 8/0 · position key `pos:12989` · issuer key `iss:1343` PRN	NO CHANGE	+$331K	$10.4M	$10.7M	7,000,000	7,000,000
—	share class as filed: 6 SER A CNV PREF · position key `pos:18248` · issuer key `iss:1652`	NO CHANGE	−$3.9M	$12.4M	$8.5M	155,000	155,000
—	share class as filed: UNIT 06/01/2027 · position key `pos:17053` · issuer key `iss:1311`	NO CHANGE	+$488K	$5.2M	$5.7M	100,000	100,000
—	share class as filed: UNIT 11/01/2027 · position key `pos:11731` · issuer key `iss:1311`	NO CHANGE	+$193K	$2.5M	$2.7M	51,000	51,000
a reviewed mapping row for this filed issuer name and share class (never inferred from the name)	share class as filed: COM CL A · position key `pos:16412` · issuer key `iss:1930`	NO CHANGE	−$78.9K	$750K	$671K	28,700	28,700
—	share class as filed: COM NEW · position key `sid:sec:prov:0640b958b7782c8dae616bbcee9d0fd7` · issuer key `cusip6:98421M`	NO CHANGE	−$18.2K	$39.8K	$21.7K	16,807	16,807

Flags: no row carries a flag.

Holdings without a security ID are counted, not compared. Method ↗

Reported positions — 2026-03-31

60 issuers · 102 rows

View

This build carries one quarter for this manager: 2026-03-31. Notable managers carry four published quarters, others two.

This list carries reported issuer names and security identities, without a dated ticker mapping. Symbols are not inferred from names.

a position composed from a base filing plus NEW-HOLDINGS amendments keeps every source row here; the composition's latest filed date is the one shown served from this build's published holdings (derived from the filer's own reported rows); every row resolves to its filing

Share of total reported value, calculated only when the full position list has disclosed values. This is 13F long value, not total assets.

value undisclosed on the filing: retained and counted, excluded from sums, never shown as $0

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SPDR GOLD TR

3 positions · 3 reported rows

Rows Portman Square Capital LLP reported for SPDR GOLD TR, as it reported them
SPDR GOLD TR · GOLD SHS · CALL CUSIP — src ↗	$337M	782,500
SPDR GOLD TR · GOLD SHS · PUT CUSIP — src ↗	$21.5M	50,000
SPDR GOLD TR · GOLD SHS CUSIP — src ↗	$15.5M	36,000

$374M

868,500

14.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NEXTERA ENERGY INC

5 positions · 5 reported rows

Rows Portman Square Capital LLP reported for NEXTERA ENERGY INC, as it reported them
NEXTERA ENERGY INC · COM · PUT CUSIP — src ↗	$203M	2,185,600
NEXTERA ENERGY INC · COM CUSIP — src ↗	$35.8M	385,397
NEXTERA ENERGY INC · UNIT 02/15/2029 CUSIP — src ↗	$29.0M	575,000
NEXTERA ENERGY INC · UNIT 06/01/2027 CUSIP — src ↗	$5.7M	100,000
NEXTERA ENERGY INC · UNIT 11/01/2027 CUSIP — src ↗	$2.7M	51,000

$276M

3,296,997

10.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SOUTHERN CO

3 positions · 3 reported rows

Rows Portman Square Capital LLP reported for SOUTHERN CO, as it reported them
SOUTHERN CO · COM · PUT CUSIP — src ↗	$95.2M	986,700
SOUTHERN CO · UNIT 12/15/2028 CUSIP — src ↗	$69.2M	1,336,000
SOUTHERN CO · COM CUSIP — src ↗	$4.3M	44,375

$169M

2,367,075

6.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

PPL CORP

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for PPL CORP, as it reported them
PPL CORP · UNIT 02/15/2029 CUSIP — src ↗	$78.3M	1,530,000
PPL CORP · COM · PUT CUSIP — src ↗	$67.8M	1,775,000

$146M

3,305,000

5.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ALBEMARLE CORP

3 positions · 3 reported rows

Rows Portman Square Capital LLP reported for ALBEMARLE CORP, as it reported them
ALBEMARLE CORP · COM · PUT CUSIP — src ↗	$66.1M	368,200
ALBEMARLE CORP · 7.25% DEP SHS A CUSIP — src ↗	$39.0M	541,000
ALBEMARLE CORP · COM CUSIP — src ↗	$15.6M	86,811

$121M

996,011

4.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

MICROCHIP TECHNOLOGY INC.

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for MICROCHIP TECHNOLOGY INC., as it reported them
MICROCHIP TECHNOLOGY INC. · DEP SHS REPSTG CUSIP — src ↗	$67.5M	1,175,000
MICROCHIP TECHNOLOGY INC. · COM · PUT CUSIP — src ↗	$52.8M	817,800

$120M

1,992,800

4.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

HEWLETT PACKARD ENTERPRISE C

3 positions · 3 reported rows

Rows Portman Square Capital LLP reported for HEWLETT PACKARD ENTERPRISE C, as it reported them
HEWLETT PACKARD ENTERPRISE C · COM · PUT CUSIP — src ↗	$79.3M	3,331,800
HEWLETT PACKARD ENTERPRISE C · 7.625 MAND CONV CUSIP — src ↗	$14.3M	220,000
HEWLETT PACKARD ENTERPRISE C · COM CUSIP — src ↗	$4.5M	188,504

$98.1M

3,740,304

3.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

PG&E CORP

3 positions · 3 reported rows

Rows Portman Square Capital LLP reported for PG&E CORP, as it reported them
PG&E CORP · COM · PUT CUSIP — src ↗	$66.8M	3,803,300
PG&E CORP · PFD CONV SER A CUSIP — src ↗	$16.5M	381,000
PG&E CORP · COM CUSIP — src ↗	$5.5M	314,773

$88.8M

4,499,073

3.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BOEING CO

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for BOEING CO, as it reported them
BOEING CO · COM · PUT CUSIP — src ↗	$61.9M	310,800
BOEING CO · DEP CONV PFD A CUSIP — src ↗	$23.0M	356,000

$84.9M

666,800

3.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NOVANTA INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for NOVANTA INC, as it reported them
NOVANTA INC · UNIT 11/01/2028 CUSIP — src ↗	$51.4M	960,000
NOVANTA INC · COM · PUT CUSIP — src ↗	$27.4M	231,600

$78.8M

1,191,600

3.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ORACLE CORP

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for ORACLE CORP, as it reported them
ORACLE CORP · COM · PUT CUSIP — src ↗	$66.9M	455,000
ORACLE CORP · COM CUSIP — src ↗	$9.9M	66,983

$76.8M

521,983

3.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

NEBIUS GROUP N.V.

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for NEBIUS GROUP N.V., as it reported them
NEBIUS GROUP N.V. · SHS CLASS A · PUT CUSIP — src ↗	$66.3M	639,300
NEBIUS GROUP N.V. · SHS CLASS A CUSIP — src ↗	$3.6M	35,087

$70.0M

674,387

2.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ARES MANAGEMENT CORPORATION

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for ARES MANAGEMENT CORPORATION, as it reported them
ARES MANAGEMENT CORPORATION · CL A COM STK · PUT CUSIP — src ↗	$33.5M	307,000
ARES MANAGEMENT CORPORATION · 6.75 SE B PFD CUSIP — src ↗	$11.4M	312,000

$44.9M

619,000

1.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

COREWEAVE INC · COM CL A · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$42.6M

550,000

1.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

EVERGY INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for EVERGY INC, as it reported them
EVERGY INC · NOTE 4.500%12/1 CUSIP — src ↗	$27.0M	20,000,000 PRN
EVERGY INC · COM · PUT CUSIP — src ↗	$15.2M	185,000

$42.2M

—

1.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

REDDIT INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for REDDIT INC, as it reported them
REDDIT INC · CL A · PUT CUSIP — src ↗	$34.6M	256,600
REDDIT INC · CL A CUSIP — src ↗	$7.4M	54,600

$41.9M

311,200

1.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

AKAMAI TECHNOLOGIES INC · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$39.5M

344,200

1.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ALIBABA GROUP HLDG LTD · SPONSORED ADS · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$37.0M

295,000

1.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

LIVE NATION ENTERTAINMENT IN · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$36.1M

237,000

1.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

UGI CORP NEW · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$35.6M

976,500

1.4%

—

STARWOOD PPTY TR INC

3 positions · 3 reported rows

Rows Portman Square Capital LLP reported for STARWOOD PPTY TR INC, as it reported them
STARWOOD PPTY TR INC · COM · PUT CUSIP 85571B105 src ↗	$25.8M	1,501,000
STARWOOD PPTY TR INC · NOTE 6.750% 7/1 CUSIP 85571BBA2 src ↗	$8.2M	8,000,000 PRN
STARWOOD PPTY TR INC · COM CUSIP 85571B105 src ↗	$1.1M	65,893

ticker not yet mapped

$35.1M

—

1.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ON SEMICONDUCTOR CORP

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for ON SEMICONDUCTOR CORP, as it reported them
ON SEMICONDUCTOR CORP · COM · PUT CUSIP — src ↗	$28.0M	451,700
ON SEMICONDUCTOR CORP · COM CUSIP — src ↗	$6.0M	96,134

$33.9M

547,834

1.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

GLOBAL PMTS INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for GLOBAL PMTS INC, as it reported them
GLOBAL PMTS INC · COM · PUT CUSIP — src ↗	$18.4M	273,800
GLOBAL PMTS INC · COM · CALL CUSIP — src ↗	$14.8M	219,900

$33.2M

493,700

1.3%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

UNITED STS OIL FD LP

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for UNITED STS OIL FD LP, as it reported them
UNITED STS OIL FD LP · UNITS · PUT CUSIP — src ↗	$18.0M	141,300
UNITED STS OIL FD LP · UNITS · CALL CUSIP — src ↗	$14.5M	113,600

$32.4M

254,900

1.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

GUARDANT HEALTH INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for GUARDANT HEALTH INC, as it reported them
GUARDANT HEALTH INC · DEBT 1.250% 2/1 CUSIP — src ↗	$16.8M	10,000,000 PRN
GUARDANT HEALTH INC · COM · PUT CUSIP — src ↗	$9.2M	100,000

$26.1M

—

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

FIRSTENERGY CORP · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$25.6M

504,900

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TETRA TECH INC NEW

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for TETRA TECH INC NEW, as it reported them
TETRA TECH INC NEW · COM · PUT CUSIP — src ↗	$20.6M	685,500
TETRA TECH INC NEW · COM CUSIP — src ↗	$4.3M	144,061

$25.0M

829,561

1.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

FLUOR CORP

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for FLUOR CORP, as it reported them
FLUOR CORP · COM · PUT CUSIP — src ↗	$18.9M	405,800
FLUOR CORP · COM CUSIP — src ↗	$4.7M	99,844

$23.6M

505,644

0.9%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ENOVIS CORPORATION · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$22.7M

998,600

0.9%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SPECTRUM BRANDS HOLDINGS INC · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$21.3M

289,600

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

OSI SYSTEMS INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for OSI SYSTEMS INC, as it reported them
OSI SYSTEMS INC · NOTE 2.250% 8/0 CUSIP — src ↗	$10.7M	7,000,000 PRN
OSI SYSTEMS INC · COM · PUT CUSIP — src ↗	$10.1M	37,900

$20.8M

—

0.8%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

REALTY INCOME CORP

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for REALTY INCOME CORP, as it reported them
REALTY INCOME CORP · COM · PUT CUSIP — src ↗	$18.6M	303,300
REALTY INCOME CORP · COM CUSIP — src ↗	$566K	9,254

$19.1M

312,554

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WINNEBAGO INDS INC · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$18.2M

587,300

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ALNYLAM PHARMACEUTICALS INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for ALNYLAM PHARMACEUTICALS INC, as it reported them
ALNYLAM PHARMACEUTICALS INC · COM · PUT CUSIP — src ↗	$12.5M	37,900
ALNYLAM PHARMACEUTICALS INC · COM CUSIP — src ↗	$5.6M	16,924

$18.1M

54,824

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ADVANCED ENERGY INDS · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$18.1M

56,000

0.7%

—

JAZZ INVESTMENTS I LTD · NOTE 3.125% 9/1 CUSIP 472145AH4
2026-03-31 filed 2026-04-27 +27d

src ↗

ticker not yet mapped

$17.7M

12,500,000 PRN

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SHIFT4 PMTS INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for SHIFT4 PMTS INC, as it reported them
SHIFT4 PMTS INC · CL A · PUT CUSIP — src ↗	$8.6M	197,400
SHIFT4 PMTS INC · 6 SER A CNV PREF CUSIP — src ↗	$8.5M	155,000

$17.1M

352,400

0.7%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

ITRON INC · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$16.6M

185,300

0.6%

—

BLACKLINE INC · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

ticker not yet mapped

$16.3M

440,200

0.6%

—

ZTO EXPRESS CAYMAN INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for ZTO EXPRESS CAYMAN INC, as it reported them
ZTO EXPRESS CAYMAN INC · SPONSORED ADS A · PUT CUSIP 98980A105 src ↗	$13.9M	551,400
ZTO EXPRESS CAYMAN INC · SPONSORED ADS A CUSIP 98980A105 src ↗	$2.0M	80,506

ticker not yet mapped

$15.9M

631,906

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CLOUDFLARE INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for CLOUDFLARE INC, as it reported them
CLOUDFLARE INC · CL A COM · PUT CUSIP — src ↗	$13.0M	63,000
CLOUDFLARE INC · CL A COM CUSIP — src ↗	$1.5M	7,278

$14.5M

70,278

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BRIDGEBIO PHARMA INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for BRIDGEBIO PHARMA INC, as it reported them
BRIDGEBIO PHARMA INC · COM · CALL CUSIP — src ↗	$9.9M	133,600
BRIDGEBIO PHARMA INC · COM · PUT CUSIP — src ↗	$4.5M	60,000

$14.4M

193,600

0.6%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WAYFAIR INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for WAYFAIR INC, as it reported them
WAYFAIR INC · CL A CUSIP — src ↗	$13.7M	182,039
WAYFAIR INC · CL A · PUT CUSIP — src ↗	$564K	7,500

$14.3M

189,539

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

WEC ENERGY GROUP INC · COM · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$13.3M

115,000

0.5%

—

KRANESHARES TRUST

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for KRANESHARES TRUST, as it reported them
KRANESHARES TRUST · CSI CHI INTERNET · CALL CUSIP 500767306 src ↗	$9.2M	325,000
KRANESHARES TRUST · CSI CHI INTERNET CUSIP 500767306 src ↗	$4.0M	140,000

ticker not yet mapped

$13.2M

465,000

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

LUCID GROUP INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for LUCID GROUP INC, as it reported them
LUCID GROUP INC · COM NEW · PUT CUSIP — src ↗	$8.8M	925,500
LUCID GROUP INC · COM NEW CUSIP — src ↗	$4.4M	461,510

$13.2M

1,387,010

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SYNAPTICS INC

2 positions · 2 reported rows

Rows Portman Square Capital LLP reported for SYNAPTICS INC, as it reported them
SYNAPTICS INC · COM · PUT CUSIP — src ↗	$10.2M	146,300
SYNAPTICS INC · COM CUSIP — src ↗	$2.3M	33,322

$12.6M

179,622

0.5%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

JAZZ PHARMACEUTICALS PLC · SHS USD · PUT CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$10.0M

53,000

0.4%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

IREN LIMITED · ORDINARY SHARES CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$6.0M

176,466

0.2%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

APOLLO GLOBAL MGMT INC · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$780K

7,000

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BLACKSTONE INC · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$690K

6,000

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

CARLYLE GROUP INC · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$677K

14,000

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

VOYAGER TECHNOLOGIES INC · COM CL A CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$671K

28,700

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

KKR & CO INC · COM · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$648K

7,000

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

TPG INC · COM CL A · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$608K

15,000

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

SOFI TECHNOLOGIES INC · COM CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$600K

37,753

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

UPSTART HLDGS INC · COM CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$303K

11,810

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

BLUE OWL CAPITAL INC · COM CL A · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$274K

30,000

0.0%

verified against the SEC company list on 2026-09-10 — a reviewed mapping row for this filed issuer name and class (never inferred)

HAMILTON LANE INC · CL A · CALL CUSIP —
2026-03-31 filed 2026-04-27 +27d

src ↗

$219K

2,200

0.0%

—

XEROX HOLDINGS CORP · COM NEW CUSIP 98421M106
2026-03-31 filed 2026-04-27 +27d

src ↗

ticker not yet mapped

$21.7K

16,807

0.0%

1–20 of 60 issuers

One line per issuer, largest first — open a line for its reported rows. Grouping ↗

Book shape

Tick = median of the 8,748 tracked filers with a 2026-03-31 book (the index median: the 8,662 with a complete book). Concentration uses reported 13F long value, not total assets; the index is withheld when any position lacks a value.

share of the period's disclosed value held in the top-N positions; denominator is reported 13F value, not total assets: 69.0%below median 80.0%
integer Herfindahl–Hirschman index in basis points over disclosed position values: 361 bpsbelow median 446 bps
holdings with no disclosed value (undisclosed, or unreadable on the filing) — kept and counted, never shown as zero: 102 / 102median book 97.5 positions

149 quarter-over-quarter rows

Filing history

Available filing periods
Period	Source
2026-03-31	EDGAR ↗
2026-06-30	EDGAR ↗

Complete source filings on SEC EDGAR

The filing on EDGAR is the record, including any filed after this build.

Open Portman Square Capital LLP's 13F filings on SEC EDGAR ↗

A 13F is a quarterly, long-only snapshot filed up to 45 days late — not current holdings. what a 13F covers ↗

13F reports cover LONG positions in Section 13(f) securities (US exchange-traded equities plus reportable options, warrants, certain convertibles) held by managers with at least $100M in such securities — so managers below that threshold are absent entirely. No short positions, no cash, no non-13(f) assets — not a full portfolio, and not a census of institutional ownership.

Positions are quarter-end snapshots filed up to 45 days late — not current holdings: a position may have changed or closed since the quarter ended.

Values are the manager's stated market value at quarter-end in era-dependent units (whole dollars for form versions effective 2023-01-03 onward, thousands before), normalized here to whole dollars; each record notes its original unit.

Affiliated managers may report the same position, so one position can appear under more than one filer.

Positions under confidential treatment may be omitted until a later amendment discloses them.

These are disclosures, not investment advice.

Changes · Q1 2026Quarter ended 2026-03-31. Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Reported positions — 2026-03-31

Book shape

Filing history

Changes · Quarter ended 2026-03-31. Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.