iShares Trust - iShares 1-3 Year Treasury Bond ETF
US ˙ NasdaqGM ˙ US4642874576

SecuritySHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF
InstitutionSei Investments Co
Latest Disclosed Ownership8,643 shares
Latest Disclosed Value $ 715,810
Sei Investments Co ownership in SHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 8,643 shares of iShares Trust - iShares 1-3 Year Treasury Bond ETF (US:SHY) valued at $715,813 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 3,150 shares of iShares Trust - iShares 1-3 Year Treasury Bond ETF. This represents a change in shares of 174.38% during the quarter. The current value of the position is $708,467 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (SHY) in the form of stock options.

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.

SHY / iShares Trust - iShares 1-3 Year Treasury Bond ETF 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)
2026-02-13 2025-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 8,643 5,493 174.38 716 173.95 0.0007
2025-11-13 2025-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 3,150 3,150 261 0.0003
2022-05-13 2022-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 0 -2,487 -100.00 0 -100.00
2022-02-14 2021-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 2,487 2,487 212 0.0004
2018-11-08 2018-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 0 -1,414 -100.00 0 -100.00
2018-08-03 2018-06-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 1,414 -436 -23.57 118 -23.38 0.0004
2018-05-11 2018-03-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 1,850 -96,776 -98.12 154 -98.14 0.0006
2018-02-08 2017-12-31 13F ISHARES TR 1 3 YR TREAS BD 464287457 98,626 2,014 2.08 8,270 1.36 0.0287
2017-11-06 2017-09-30 13F ISHARES TR 1 3 YR TREAS BD 464287457 96,612 41,379 74.92 8,159 74.86 0.0290
2017-07-31 2017-06-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 55,233 33,572 154.99 4,666 154.83 0.0186
2017-05-05 2017-03-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 21,661 -956,696 -97.79 1,831 -97.78 0.0080
2017-02-02 2016-12-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 978,357 209,439 27.24 82,622 26.36 0.4001
2016-11-04 2016-09-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 768,918 50,431 7.02 65,388 6.67 0.3322
2016-08-11 2016-06-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 718,487 134,948 23.13 61,302 23.55 0.3677
2016-05-10 2016-03-31 13F/A-1 ISHARES TR 1-3 YR TR BD ETF 464287457 583,539 69,495 13.52 49,618 14.42 0.3088
2016-02-03 2015-12-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 514,044 78,217 17.95 43,365 17.07 0.2643
2015-11-02 2015-09-30 13F/A-1 ISHARES TR 1-3 YR TR BD ETF 464287457 435,827 224,386 106.12 37,041 106.44 0.3400
2015-10-30 2015-09-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 435,827 37,042
2015-08-07 2015-06-30 13F/A-1 IRONWOOD PHARMACEUTICALS PUT 464287457 0 -172,640 -100.00 0 -100.00
2015-08-07 2015-06-30 13F/A-1 ISHARES TR 1-3 YR TR BD ETF 464287457 211,441 38,801 22.48 17,943 22.45 0.1622
2015-08-04 2015-06-30 13F ISHARES TR 1-3 YR TR BD ETF 464287457 211,441 38,801 17,943 0.1622
2015-05-14 2015-03-31 13F/A-1 ISHARES TR 1-3 YR TR BD ETF 464287457 172,640 38,009 28.23 14,653 28.86 0.1272
2015-05-01 2015-03-31 13F IRONWOOD PHARMACEUTICALS PUT 464287457 172,640 172,640 14,653 0.1272
2015-02-10 2014-12-31 13F ISHARES TR 1-3 YR TR BD ETF 464287457 134,631 134,631 11,371 0.1005
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
(%)
2015-08-07 2015-06-30 13F/A IRONWOOD PHARMACEUTICALS PUT 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-01 2015-03-31 13F IRONWOOD PHARMACEUTICALS PUT 172,640 14,653 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.