Parallax Volatility Advisers, L.P.
Position in AMT — American Tower Corp /Ma/
CIK 1521001
San Francisco, CA
Position in AMT
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$3,202,209
+$3,044,817 QoQ
Shares Held
19,577
+2046.6% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.16%
of 13F equity value
Holder Rank
#562
of 1,740 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMT Over Time
Shares Held
Position Value (USD)
Derivatives in AMT
reported options exposure · as of Jun 30, 2026CallValue
$16,357
CallShares
100
PutValue
$6,739,084
PutShares
41,200
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in REIT - Specialty
Real Estate · as of Jun 30, 2026Parallax Volatility Advisers, L.P. holds $3,894,669 across 2 REIT - Specialty names. AMT ranks #1 (82.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMT |
American Tower Corp /Ma/
This page
|
19,577 | $3,202,209 | |
| 2 | DLR |
Digital Realty Trust, Inc.
|
3,856 | $692,460 |
All Filings in AMT
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50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $3,202,209 | 19,577 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $6,739,084 | 41,200 | Put | Sole | 2026-08-14 | |
| 2026-06-30 | $16,357 | 100 | Call | Sole | 2026-08-14 | |
| 2026-03-31 | $51,774 | 300 | Call | Sole | 2026-05-15 | |
| 2026-03-31 | $157,392 | 912 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $51,774 | 300 | Put | Sole | 2026-05-15 | |
| 2025-12-31 | $64,644,874 | 368,200 | Call | Sole | 2026-02-17 | |
| 2025-09-30 | $2,404,000 | 12,500 | Put | Sole | 2025-11-14 | |
| 2025-09-30 | $73,216,224 | 380,700 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $35,937,852 | 162,600 | Put | Sole | 2025-08-14 | |
| 2025-06-30 | $91,900,116 | 415,800 | Call | Sole | 2025-08-14 | |
| 2025-03-31 | $90,456,320 | 415,700 | Call | Sole | 2025-05-15 | |
| 2025-03-31 | $6,419,200 | 29,500 | Put | Sole | 2025-05-15 | |
| 2024-12-31 | $12,728,654 | 69,400 | Put | Sole | 2025-02-14 | |
| 2024-12-31 | $2,292,625 | 12,500 | Call | Sole | 2025-02-14 | |
| 2024-09-30 | $38,930,544 | 167,400 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $13,581,504 | 58,400 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $12,809,642 | 65,900 | Put | Sole | 2024-08-14 | |
| 2024-06-30 | $5,423,202 | 27,900 | Call | Sole | 2024-08-14 | |
| 2024-03-31 | $1,264,576 | 6,400 | Put | Sole | 2024-05-15 | |
| 2024-03-31 | $14,246,239 | 72,100 | Call | Sole | 2024-05-15 | |
| 2023-12-31 | $3,777,900 | 17,500 | Put | Sole | 2024-02-14 | |
| 2023-12-31 | $23,530,920 | 109,000 | Call | Sole | 2024-02-14 | |
| 2023-09-30 | $5,393,960 | 32,800 | Put | Sole | 2023-11-14 | |
| 2023-09-30 | $3,256,110 | 19,800 | Call | Sole | 2023-11-14 | |
| 2023-06-30 | $4,441,226 | 22,900 | Call | Sole | 2023-08-14 | |
| 2023-06-30 | $6,050,928 | 31,200 | Put | Sole | 2023-08-14 | |
| 2023-03-31 | $26,380,294 | 129,100 | Put | Sole | 2023-05-15 | |
| 2023-03-31 | $10,237,434 | 50,100 | Call | Sole | 2023-05-15 | |
| 2022-12-31 | $6,313,428 | 29,800 | Put | Sole | 2023-02-27 | |
| 2022-12-31 | $4,761,553 | 22,475 | Shares | Sole | 2023-02-27 | |
| 2022-12-31 | $13,262,436 | 62,600 | Call | Sole | 2023-02-27 | |
| 2022-09-30 | $12,474,070 | 58,100 | Put | Sole | 2022-11-21 | |
| 2022-09-30 | $42,231,490 | 196,700 | Call | Sole | 2022-11-21 | |
| 2022-06-30 | $19,143,691 | 74,900 | Call | Sole | 2022-08-17 | |
| 2022-06-30 | $16,229,965 | 63,500 | Put | Sole | 2022-08-17 | |
| 2022-06-30 | $572,266 | 2,239 | Shares | Sole | 2022-08-17 | |
| 2022-03-31 | $6,531,720 | 26,000 | Put | Sole | 2022-05-16 | |
| 2022-03-31 | $15,902,226 | 63,300 | Call | Sole | 2022-05-16 | |
| 2021-09-30 | $49,711,293 | 187,300 | Call | Sole | 2021-11-15 | |
| 2021-09-30 | $16,561,584 | 62,400 | Put | Sole | 2021-11-15 | |
| 2021-06-30 | $70,938,764 | 262,600 | Call | Sole | 2021-08-16 | |
| 2021-06-30 | $21,638,214 | 80,100 | Put | Sole | 2021-08-16 | |
| 2021-03-31 | $35,200,628 | 147,246 | Shares | Sole | 2021-05-14 | |
| 2021-03-31 | $81,925,862 | 342,700 | Put | Sole | 2021-05-14 | |
| 2021-03-31 | $63,159,652 | 264,200 | Call | Sole | 2021-05-14 | |
| 2020-12-31 | $12,759,204 | 56,844 | Shares | Sole | 2021-02-16 | |
| 2020-12-31 | $15,106,158 | 67,300 | Call | Sole | 2021-02-16 | |
| 2020-12-31 | $24,825,276 | 110,600 | Put | Sole | 2021-02-16 | |
| 2020-09-30 | $38,966,876 | 161,200 | Put | Sole | 2020-11-13 | |
| No filing history on record for this holder in this stock. | ||||||