Telesat Corporation
US ˙ NasdaqGS ˙ CA8795123097

SecurityTSAT / Telesat Corporation
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership136,582 shares
Latest Disclosed Value $ 4,944,268
Citadel Advisors Llc ownership in TSAT / Telesat Corporation

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 136,582 shares of Telesat Corporation (US:TSAT) valued at $4,944,268 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 68,233 shares of Telesat Corporation. This represents a change in shares of 100.17% during the quarter. The current value of the position is $6,086,094 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (TSAT) in the form of stock options. The firm currently holds call options representing 30,800 of underlying shares valued at $1,114,960 USD and put options representing 8,400 of underlying shares valued at $304,080 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

TSAT / Telesat Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F TELESAT CL A & CL B SHS 879512309 136,582 68,349 100.17 4,944 149.07 0.0007
2026-02-17 2025-12-31 13F TELESAT CL A & CL B SHS 879512309 68,233 4,496 7.05 1,986 17.53 0.0003
2025-11-14 2025-09-30 13F TELESAT CL A & CL B SHS 879512309 63,737 52,162 450.64 1,689 498.94 0.0003
2025-08-14 2025-06-30 13F TELESAT CL A & CL B SHS 879512309 11,575 11,575 283 0.0000
2025-02-14 2024-12-31 13F TELESAT CL A & CL B SHS 879512309 0 -30,044 -100.00 0 -100.00
2024-11-14 2024-09-30 13F TELESAT CL A & CL B SHS 879512309 30,044 17,677 142.94 396 252.68 0.0001
2024-08-14 2024-06-30 13F TELESAT CL A & CL B SHS 879512309 12,367 11,593 1,497.80 113 1,766.67 0.0000
2024-05-15 2024-03-31 13F TELESAT CL A & CL B SHS 879512309 774 -180 -18.87 7 -33.33 0.0000
2024-02-14 2023-12-31 13F TELESAT CL A & CL B SHS 879512309 954 954 10 0.0000
2023-11-14 2023-09-30 13F TELESAT CL A & CL B SHS 879512309 0 -18,032 -100.00 0 -100.00
2023-08-14 2023-06-30 13F TELESAT CL A & CL B SHS 879512309 18,032 -772 -4.11 170 4.97 0.0000
2023-05-15 2023-03-31 13F TELESAT CL A & CL B SHS 879512309 18,804 -5,523 -22.70 162 -11.54 0.0000
2023-02-14 2022-12-31 13F TELESAT CL A & CL B SHS 879512309 24,327 -86,554 -78.06 182 -78.98 0.0000
2022-11-14 2022-09-30 13F TELESAT CL A & CL B SHS 879512309 110,881 -64,938 -36.93 866 -55.91 0.0002
2022-08-15 2022-06-30 13F TELESAT CL A & CL B SHS 879512309 175,819 162,417 1,211.89 1,964 788.69 0.0005
2022-05-16 2022-03-31 13F TELESAT CL A & CL B SHS 879512309 13,402 -2,932 -17.95 221 -52.78 0.0000
2022-02-14 2021-12-31 13F TELESAT CL A & CL B SHS 879512309 16,334 16,334 468 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F TELESAT CL A & CL B SHS Call 30,800 250.00 1,115 335.16 n/a n/a n/a
2026-02-17 2025-12-31 13F TELESAT CL A & CL B SHS Call 8,800 256 n/a n/a n/a
2025-11-14 2025-09-30 13F TELESAT CL A & CL B SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F TELESAT CL A & CL B SHS Call 50,200 -49.09 1,227 -33.94 n/a n/a n/a
2025-05-15 2025-03-31 13F TELESAT CL A & CL B SHS Call 98,600 119.11 1,857 151.15 n/a n/a n/a
2025-02-14 2024-12-31 13F TELESAT CL A & CL B SHS Call 45,000 298.23 740 399.32 n/a n/a n/a
2024-11-14 2024-09-30 13F TELESAT CL A & CL B SHS Call 11,300 222.86 149 377.42 n/a n/a n/a
2024-08-14 2024-06-30 13F TELESAT CL A & CL B SHS Call 3,500 -63.16 32 -61.73 n/a n/a n/a
2024-05-15 2024-03-31 13F TELESAT CL A & CL B SHS Call 9,500 -65.07 82 -71.38 n/a n/a n/a
2024-02-14 2023-12-31 13F TELESAT CL A & CL B SHS Call 27,200 -34.62 284 -52.36 n/a n/a n/a
2023-11-14 2023-09-30 13F TELESAT CL A & CL B SHS Call 41,600 994.74 595 1,597.14 n/a n/a n/a
2023-08-14 2023-06-30 13F TELESAT CL A & CL B SHS Call 3,800 -20.83 36 -14.63 n/a n/a n/a
2023-05-15 2023-03-31 13F TELESAT CL A & CL B SHS Call 4,800 -59.66 41 -53.93 n/a n/a n/a
2023-02-14 2022-12-31 13F TELESAT CL A & CL B SHS Call 11,900 -9.85 89 -13.59 n/a n/a n/a
2022-11-14 2022-09-30 13F TELESAT CL A & CL B SHS Call 13,200 103 n/a n/a n/a
2022-08-15 2022-06-30 13F TELESAT CL A & CL B SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F TELESAT CL A & CL B SHS Call 21,900 15.26 361 -33.76 n/a n/a n/a
2022-02-14 2021-12-31 13F TELESAT CL A & CL B SHS Call 19,000 545 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F TELESAT CL A & CL B SHS Put 8,400 -61.64 304 -52.28 n/a n/a n/a
2026-02-17 2025-12-31 13F TELESAT CL A & CL B SHS Put 21,900 -44.97 637 -39.56 n/a n/a n/a
2025-11-14 2025-09-30 13F TELESAT CL A & CL B SHS Put 39,800 156.77 1,055 178.84 n/a n/a n/a
2025-08-14 2025-06-30 13F TELESAT CL A & CL B SHS Put 15,500 6.16 379 37.96 n/a n/a n/a
2025-05-15 2025-03-31 13F TELESAT CL A & CL B SHS Put 14,600 -47.67 275 -40.17 n/a n/a n/a
2025-02-14 2024-12-31 13F TELESAT CL A & CL B SHS Put 27,900 -15.71 459 5.29 n/a n/a n/a
2024-11-14 2024-09-30 13F TELESAT CL A & CL B SHS Put 33,100 91.33 436 177.07 n/a n/a n/a
2024-08-14 2024-06-30 13F TELESAT CL A & CL B SHS Put 17,300 57.27 157 67.02 n/a n/a n/a
2024-05-15 2024-03-31 13F TELESAT CL A & CL B SHS Put 11,000 -33.73 95 -45.66 n/a n/a n/a
2024-02-14 2023-12-31 13F TELESAT CL A & CL B SHS Put 16,600 82.42 173 33.08 n/a n/a n/a
2023-11-14 2023-09-30 13F TELESAT CL A & CL B SHS Put 9,100 405.56 130 712.50 n/a n/a n/a
2023-08-14 2023-06-30 13F TELESAT CL A & CL B SHS Put 1,800 -30.77 17 -27.27 n/a n/a n/a
2023-05-15 2023-03-31 13F TELESAT CL A & CL B SHS Put 2,600 -60.61 22 -55.10 n/a n/a n/a
2023-02-14 2022-12-31 13F TELESAT CL A & CL B SHS Put 6,600 50 n/a n/a n/a
2022-08-15 2022-06-30 13F TELESAT CL A & CL B SHS Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F TELESAT CL A & CL B SHS Put 12,700 -5.93 210 -45.74 n/a n/a n/a
2022-02-14 2021-12-31 13F TELESAT CL A & CL B SHS Put 13,500 387 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.