Nextdoor Holdings, Inc.
US ˙ NYSE ˙ US65345M1080

SecurityNXDR / Nextdoor Holdings, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership2,621,922 shares
Latest Disclosed Value $ 3,670,691
Citadel Advisors Llc ownership in NXDR / Nextdoor Holdings, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 2,621,922 shares of Nextdoor Holdings, Inc. (US:NXDR) valued at $3,670,691 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 662,417 shares of Nextdoor Holdings, Inc.. This represents a change in shares of 295.81% during the quarter. The current value of the position is $5,427,379 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (NXDR) in the form of stock options. The firm currently holds call options representing 45,100 of underlying shares valued at $63,140 USD and put options representing 86,300 of underlying shares valued at $120,820 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.

NXDR / Nextdoor Holdings, Inc. 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 NEXTDOOR HOLDINGS COM CL A 65345M108 2,621,922 1,959,505 295.81 3,671 163.84 0.0005
2026-02-17 2025-12-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 662,417 -455,245 -40.73 1,391 -40.43 0.0002
2025-11-14 2025-09-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 1,117,662 -268,388 -19.36 2,336 1.52 0.0004
2025-08-14 2025-06-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 1,386,050 -1,128,271 -44.87 2,301 -40.20 0.0004
2025-05-15 2025-03-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 2,514,321 188,775 8.12 3,847 -30.21 0.0007
2025-02-14 2024-12-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 2,325,546 1,132,504 94.93 5,512 86.31 0.0010
2024-11-14 2024-09-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 1,193,042 -409,060 -25.53 2,959 -33.57 0.0006
2024-08-14 2024-06-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 1,602,102 1,567,783 4,568.27 4,454 5,683.12 0.0009
2024-05-15 2024-03-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 34,319 -263,130 -88.46 77 -86.30 0.0000
2024-02-14 2023-12-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 297,449 110,240 58.89 562 65.29 0.0001
2023-11-14 2023-09-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 187,209 112,400 150.25 341 39.92 0.0001
2023-08-14 2023-06-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 74,809 -539,370 -87.82 244 -81.59 0.0001
2023-05-15 2023-03-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 614,179 599,397 4,054.91 1,320 4,300.00 0.0003
2023-02-14 2022-12-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 14,782 -122,648 -89.24 30 -92.17 0.0000
2022-11-14 2022-09-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 137,430 137,430 383 0.0001
2022-08-15 2022-06-30 13F NEXTDOOR HOLDINGS COM CL A 65345M108 0 -1,792,438 -100.00 0 -100.00
2022-05-16 2022-03-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 1,792,438 155,850 9.52 10,737 -16.85 0.0022
2022-02-14 2021-12-31 13F NEXTDOOR HOLDINGS COM CL A 65345M108 1,636,588 1,636,588 12,913 0.0026
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 NEXTDOOR HOLDINGS COM CL A Call 45,100 -77.64 63 -85.11 n/a n/a n/a
2026-02-17 2025-12-31 13F NEXTDOOR HOLDINGS COM CL A Call 201,700 -25.52 424 -25.13 n/a n/a n/a
2025-11-14 2025-09-30 13F NEXTDOOR HOLDINGS COM CL A Call 270,800 566 n/a n/a n/a
2025-08-14 2025-06-30 13F NEXTDOOR HOLDINGS COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F NEXTDOOR HOLDINGS COM CL A Call 27,200 -74.36 42 -83.67 n/a n/a n/a
2025-02-14 2024-12-31 13F NEXTDOOR HOLDINGS COM CL A Call 106,100 0.38 251 -4.20 n/a n/a n/a
2024-11-14 2024-09-30 13F NEXTDOOR HOLDINGS COM CL A Call 105,700 926.21 262 835.71 n/a n/a n/a
2024-08-14 2024-06-30 13F NEXTDOOR HOLDINGS COM CL A Call 10,300 186.11 29 250.00 n/a n/a n/a
2024-05-15 2024-03-31 13F NEXTDOOR HOLDINGS COM CL A Call 3,600 -97.69 8 -97.28 n/a n/a n/a
2024-02-14 2023-12-31 13F NEXTDOOR HOLDINGS COM CL A Call 155,700 0.32 294 4.26 n/a n/a n/a
2023-11-14 2023-09-30 13F NEXTDOOR HOLDINGS COM CL A Call 155,200 -13.78 282 -51.88 n/a n/a n/a
2023-08-14 2023-06-30 13F NEXTDOOR HOLDINGS COM CL A Call 180,000 -9.82 587 36.60 n/a n/a n/a
2023-05-15 2023-03-31 13F NEXTDOOR HOLDINGS COM CL A Call 199,600 -19.94 429 -16.37 n/a n/a n/a
2023-02-14 2022-12-31 13F NEXTDOOR HOLDINGS COM CL A Call 249,300 7.18 514 -20.96 n/a n/a n/a
2022-11-14 2022-09-30 13F NEXTDOOR HOLDINGS COM CL A Call 232,600 11.56 649 -5.94 n/a n/a n/a
2022-08-15 2022-06-30 13F NEXTDOOR HOLDINGS COM CL A Call 208,500 97.44 690 9.00 n/a n/a n/a
2022-05-16 2022-03-31 13F NEXTDOOR HOLDINGS COM CL A Call 105,600 -37.37 633 -52.41 n/a n/a n/a
2022-02-14 2021-12-31 13F NEXTDOOR HOLDINGS COM CL A Call 168,600 1,330 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 NEXTDOOR HOLDINGS COM CL A Put 86,300 -32.10 121 -54.89 n/a n/a n/a
2026-02-17 2025-12-31 13F NEXTDOOR HOLDINGS COM CL A Put 127,100 283.99 267 285.51 n/a n/a n/a
2025-11-14 2025-09-30 13F NEXTDOOR HOLDINGS COM CL A Put 33,100 -2.07 69 23.21 n/a n/a n/a
2025-08-14 2025-06-30 13F NEXTDOOR HOLDINGS COM CL A Put 33,800 428.12 56 522.22 n/a n/a n/a
2025-05-15 2025-03-31 13F NEXTDOOR HOLDINGS COM CL A Put 6,400 178.26 10 80.00 n/a n/a n/a
2025-02-14 2024-12-31 13F NEXTDOOR HOLDINGS COM CL A Put 2,300 -80.00 5 -82.14 n/a n/a n/a
2024-11-14 2024-09-30 13F NEXTDOOR HOLDINGS COM CL A Put 11,500 -85.82 29 -87.56 n/a n/a n/a
2024-08-14 2024-06-30 13F NEXTDOOR HOLDINGS COM CL A Put 81,100 394.51 225 525.00 n/a n/a n/a
2024-05-15 2024-03-31 13F NEXTDOOR HOLDINGS COM CL A Put 16,400 -71.13 37 -66.36 n/a n/a n/a
2024-02-14 2023-12-31 13F NEXTDOOR HOLDINGS COM CL A Put 56,800 10.94 107 15.05 n/a n/a n/a
2023-11-14 2023-09-30 13F NEXTDOOR HOLDINGS COM CL A Put 51,200 -16.34 93 -53.27 n/a n/a n/a
2023-08-14 2023-06-30 13F NEXTDOOR HOLDINGS COM CL A Put 61,200 -20.83 200 19.88 n/a n/a n/a
2023-05-15 2023-03-31 13F NEXTDOOR HOLDINGS COM CL A Put 77,300 -35.96 166 -33.06 n/a n/a n/a
2023-02-14 2022-12-31 13F NEXTDOOR HOLDINGS COM CL A Put 120,700 -27.81 249 -46.78 n/a n/a n/a
2022-11-14 2022-09-30 13F NEXTDOOR HOLDINGS COM CL A Put 167,200 6.29 466 -10.56 n/a n/a n/a
2022-08-15 2022-06-30 13F NEXTDOOR HOLDINGS COM CL A Put 157,300 -28.47 521 -60.44 n/a n/a n/a
2022-05-16 2022-03-31 13F NEXTDOOR HOLDINGS COM CL A Put 219,900 -15.81 1,317 -36.10 n/a n/a n/a
2022-02-14 2021-12-31 13F NEXTDOOR HOLDINGS COM CL A Put 261,200 2,061 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.